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东山精密:2025年年度报告(英文版)

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DSBJ Annual Report 2025

Suzhou Dongshan Precision Manufacturing Co. Ltd.Annual Report 2025

April 22 2026DSBJ Annual Report 2025

Annual Report 2025

Section I Important Note Table of Contents and Definitions

The Board of Directors directors and senior executives of the Company

hereby warrant that the information contained in this Annual Report is true

accurate and complete without any misrepresentation misleading statement or

material omission and agree to assume joint and several liabilities for this

Annual Report.YUAN Yonggang Chairman of the Company CFO WANG Xu and

Accounting Supervisor ZHU Deguang hereby represent that the financial

report contained in this Annual Report is true accurate and complete.All directors of the Company attended the meeting of the Board of

Directors reviewing this Report.Forward-looking statements such as those on future development plans in

this Report do not constitute substantial commitments by the Company to the

investors. Investors and relevant persons shall be sufficiently mindful of risks

and understand the differences between plans predictions and commitments.The Company has fully disclosed the potential risks associated with the

concentration of customers rapid upgrading and iteration of industrialtechnologies fluctuations in exchange rates etc. in this Report. Please see “XI.

1DSBJ Annual Report 2025Prospects for Future Development of the Company” under “Section III.Management’s Discussion and Analysis”.The Company has no plan to pay cash dividends distribute bonus shares

or convert any capital reserve to the share capital.Note:

This document is a translated version of the Chinese Annual Report 2025 ("2025 年年度报告"). In case of any

discrepancies the Annual Report 2025 published in the Chinese version shall prevail. The full Chinese Annual

Report 2025 is available at www.cninfo.com.cn.

2DSBJ Annual Report 2025

Table of Contents

Section I Important Note Table of Contents and Def... 1

Section II Company Profile and Financial Highlight....8

Section III Management’s Discussion and Analysis ... 12

Section IV Corporate Governance Environment and So.. 49

Section V Significant Matters ...................... 68

Section VI Changes in Shares and Shareholders ...... 85

Section VII Bonds .................................. 94

Section VIII Financial Report ...................... 95

3DSBJ Annual Report 2025

List of References

I. Financial statements signed and chopped by Mr. YUAN Yonggang legal representative Mr. WANG Xu

CFO and Mr. ZHU Deguang Accounting Supervisor of the Company;

II. Originals of all documents of the Company publicly disclosed during the reporting period and related

announcements;

III. Original of the Annual Report 2025 stamped with the seal and signed by the legal representative of the

Company; and

IV. Place for keeping such documents for inspection: Securities Department of the Company at Building

12# Yunhe Town Headquarters Industrial Park No. 99 East Taihu Road Wuzhong District Suzhou.

4DSBJ Annual Report 2025

Definitions

Term Means Definition

Company we or

means Suzhou Dongshan Precision Manufacturing Co. Ltd.DSBJ

one of our major business segments including research and development (R&D) manufacturing and

Electronic circuit means

sale of FPCs rigid PCBs and rigid-flexible PCBs.Optical module one of our major business segments including R&D manufacturing and sale of optical modules

means

business (including optical chips).Photoelectric one of our major business segments including R&D manufacturing and sale of touch panels and

means

display module LCMs.Precision one of our major business segments including R&D manufacturing and sale of precision metal

means

component structural parts and functional modules.Hong Kong Hong Kong Dongshan Precision Union Opoelectronic Co. Limited a wholly owned subsidiary of

means

Dongshan the Company.Hong Kong

means Hong Kong Dongshan Holding Limited a wholly owned subsidiary of the Company.Dongshan Holding

Dragon Holdings means Dragon Electronix Holdings Inc. a wholly owned subsidiary of Hong Kong Dongshan.MFLEX means Multi-Fineline Electronix Inc. a wholly owned subsidiary of Dragon Holdings.Multek Group means Multek Group (Hong Kong) Limited a wholly owned subsidiary of Hong Kong Dongshan Holding.Source Photonics means Source Photonics Holdings (Cayman) Limited a subsidiary of the Company.GMD Group means Groupe Mécanique Découpage a wholly owned subsidiary of the Company.Source Chengdu means Source Photonics (Chengdu) Co. Ltd. a wholly owned subsidiary of Source Photonics.Jiangsu Source Communication Technology Co. Ltd. a wholly owned subsidiary of Source

Source Jiangsu means

Photonics.MFLEX Suzhou means MFLEX Suzhou Co. Ltd. a wholly owned subsidiary of MFLEX.MFLEX Yancheng means MFLEX Yancheng Co. Ltd. a wholly owned subsidiary of MFLEX.Multek China means Multek China Limited a wholly owned subsidiary of Multek Group.Suzhou Dongyue means Suzhou Dongyue New Energy Technology Co. Ltd. a wholly owned subsidiary of the Company.Aranda Tooling Inc. AutoTech Production Services Inc. and Autotech Production de Mexico S. de

Aranda means

R. L. de C.V. wholly owned subsidiaries of the Company.Printed Circuit Board which forms conductive circuits with conductive materials on an insulated

substrate according to a pre-designed circuit principle through etching lamination drilling and

PCB means

other processes. It is a core fundamental electronic component providing mechanical support and

electrical interconnection for electronic components.Flexible Printed Circuit a PCB that is made with a flexible insulated film as the substrate having the

FPC means

features of flexible light thin and high-density wiring.AI Data Center an artificial intelligence data center/intelligent computing center which is a new

generation of computing power infrastructure customized for AI large model training inference and

AI DC means

high-concurrency computing. As an “AI-upgraded mode” of conventional IDCs it is also referred to

as an intelligent computing center in the industry.AI Printed Circuit Board a high-performance PCB designed for AI computing (GPU/TPU/ASIC AI

AI PCB means servers super computing). Unlike common consumer electronics PCBs it focuses on high speed

high density high reliability large current low loss and strong heat dissipation.High-Density Interconnect PCB a precision PCB with a higher wiring density and requiring a

smaller installation space achieved through laser micro vias blind vias and buried vias fine lines

HDI PCB means and thin substrates and other processes. Thanks to the core features of finer wire widths and

spacing smaller holes and higher layer utilization it is mainly used in scenarios with dense chip

pins and limited product space as a mainstream solution for smartphones AI modules optical

5DSBJ Annual Report 2025

modules and high-end server front-end panels.High Layer Count PCB a thick core structure generally with ≥16 layers developing toward 20

layers 28 layers 30 layers and even more. Being made by laminating multiple cores with copper

foil layers it has multiple power supply layers multiple grounding layers and multiple sets of high-

HLC PCB means speed differential lines to mainly meet the requirements for high-current power supply strong anti-

interference high-speed signal transmission and complex system integration in AI servers switch

backplanes GPU accelerator cards and large-scale communication equipment focusing on thick

copper high stability and high power handling capacity.a core chip transmitting modulating and detecting optical signals in an optical module. It

Optical chip means

determines key indicators like the rate distance power consumption etc. of the module.a core device for conversion between optical signals and electrical signals. It consists of optical

Optical module means transmitting and receiving control and structural parts and is mainly intended for interconnection

scenarios like data centers computing power networks communication etc.a highly integrated photoelectric core component. Generally integrating functions of optical chips

Optical engine means

optical coupling drivers etc. it is a core integration mode of high-speed optical modules.a collective term for upstream parts of optical modules including optical chips electric chips

Optical device means

passive devices and structural parts.Electro-Absorption Modulated Laser a high-performance optical chip achieving monolithic

integration of a DFB continuous wave (CW) laser and an electro-absorption modulator (EAM). The

EML means

DFB provides constant continuous light the modulator modulates high-speed signals by controlling

optical absorption through voltage and the laser operating point remains unchanged.Continuous-Wave Laser a laser outputting continuous stable uninterrupted optical signals unlike

pulsed lasers. In the field of optical communication the CW laser itself does not carry data signals

CW Laser means but provides a continuous light source at a constant power. It has to work with an external modulator

(such as an EAM lithium niobate modulator etc.) for optical strength/phase modulation to achieve

high-speed data transfer.Distributed Feedback Laser a laser with a built-in optical grating structure to achieve output at a

DFB means single stable wavelength. As a direct modulated laser (DML) it switches and modulates optical

signals by varying the injected current.Vertical-Cavity Surface-Emitting Laser a laser emitting laser light perpendicular to the chip surface.VCSEL means It can be integrated in an array for direct modulation. Thanks to its short cavity and great process

compatibility it can achieve concurrent transmission through multiple channels.Digital Signal Processor for equalization error correction clock recovery and signal shaping of

DSP means high-speed electrical signals. It is a necessary core electric chip for high-speed optical modules at

400G and above.

Co-packaged Optics an ultra-high integration solution packaging a high-speed optical engine

switch ASIC/GPU and other main chips on one substrate or middle layer. It shortens the electric

CPO means interconnection distance to millimeters and even sub-millimeters to minimize transmission loss of

high-speed electrical signals on the PCB hence achieving the extreme bandwidth density and energy

efficiency ratio.Near-Packaged Optics a board-level integration solution for placing optical engines in proximity to

switch chips/GPU chips on the same PCB. Instead of being connected to switch chips through the

NPO means long wire routing on the backplane the optical engines are placed at a distance of millimeters to

greatly shorten the electrical signal paths while keeping the optical engines and main chip physically

independent for separate maintenance.Linear Pluggable Optics a technical solution based on the conventional pluggable optical module

architecture where the DSP chip inside the module is removed or greatly simplified and a switch

ASIC chip is used to directly output linear electrical signals to drive the optical module. Retaining

LPO means

the standard pluggable shape (e.g. QSFP OSFP) without changing the existing hardware

architecture it is a light-weight and low-cost transitional solution for high-speed low-latency low-

power consumption requirements.separate architecture consisting of “continuous wave laser + silicon photonic integrated circuit”. By

decoupling the light-emitting and modulation functions to achieve high-integration low-power

CW silicon

means consumption low-cost and high-speed optical transmission it is a core technical solution supporting

photonics solution

400G/800G/1.6T optical modules CPO/NPO and other advanced architectures mainly covering

short-distance interconnection scenarios of AI data centers.

6DSBJ Annual Report 2025

Augmented Reality a technology that combines and integrates the virtual world on screen with the

AR means real world based on precise calculation of position and angle of camera images and image analysis

technology.Virtual Reality a computer-simulated 3D virtual world with scenes and objects that appear to be

VR means

real.TP for short a transparent sensing device installed at the front end of a display panel to sense

external touch positions and output coordinate signals by employing capacitance resistance optics

Touch panel means

and other principles. As a core component to achieve human-machine interaction it is widely used

in consumer electronics vehicle-mounted display industrial control equipment etc.Liquid Crystal Module a complete display module integrating a liquid crystal glass panel backlight

LCM means module driver chip circuit board structural parts etc. to directly receive electrical signals and

display images. It is a core functional unit to achieve visual output on various electronic terminals.CSRC means China Securities Regulatory Commission.SZSE means Shenzhen Stock Exchange.

7DSBJ Annual Report 2025

Section II Company Profile and Financial Highlights

I. Company Profile

Stock short name DSBJ Stock code 002384

Original stock short name (if

None

any)

Stock exchange Shenzhen Stock Exchange

Chinese name 苏州东山精密制造股份有限公司

Chinese short name 东山精密

English name (if any) Suzhou Dongshan Precision Manufacturing Co. Ltd.English short name (if any) DSBJ

Legal representative YUAN Yonggang

Registered address No. 288 Shanfeng Road Wuzhong Economic Development Zone Suzhou

Postal code of the registered

215124

address

Our registered address was at Shangwan Village Dongshan Wuzhong District Suzhou Jiangsu

when we were reorganized from Suzhou Dongshan Sheet Metal Co. Ltd. into Suzhou Dongshan

History of changes in the

Precision Manufacturing Co. Ltd. in 2007 and was changed into No. 88 Tangdong Road

registered address

Wuzhong Economic Development Zone Suzhou on December 27 2019 and changed to No.

288 Shanfeng Road Wuzhong Economic Development Zone Suzhou on July 19 2024.

Building 12# Yunhe Town Headquarters Industrial Park No. 99 East Taihu Road Wuzhong

Office address

District Suzhou

Postal code of office address 215128

Company website www.dsbj.com

Email dsbj@dsbj.com

II. Contact Person and Contact Information

Board Secretary Securities Affairs Representative

Name MAO Xiaoyan ZHOU Hao

Building 12# Yunhe Town Headquarters Building 12# Yunhe Town Headquarters

Address Industrial Park No. 99 East Taihu Road Industrial Park No. 99 East Taihu Road

Wuzhong District Suzhou Wuzhong District Suzhou

Telephone 0512-80190019 0512-80190019

Facsimile 0512-80190029 0512-80190029

Email maoxy@dsbj.com hao.zhou@dsbj.com

III. Media for Information Disclosure and Place for Keeping Annual Report

Website of the stock exchange disclosing the Company’s

Shenzhen Stock Exchange (www.szse.cn)

annual report

The Securities Times the China Securities Journal the

Media and website disclosing the Company’s annual report Shanghai Securities News the Securities Daily and

www.cninfo.com.cn

Place for keeping the Company’s annual report Securities Department of the Company

8DSBJ Annual Report 2025

IV. Changes in Registration Particulars

Unified social credit code 91320500703719732P

Since our IPO and listing we have made strategic upgrades toour businesses. Under the mission of “building a betterChanges in primary business since the listing of the Companyconnected world for tomorrow” we added electronic

(if any)

businesses including electronic circuits photoelectric display

and optical modules (including optical chips).Changes in controlling shareholder (if any) None

V. Other Related Information

Accounting firm engaged by the Company

Name of accounting firm Pan-China Certified Public Accountants LLP

No. 128 Xixi Road Lingyin Community Xihu District

Office address of accounting firm

Hangzhou City Zhejiang Province

Name of accountants signing this report ZHANG Yang and FU Zhenlong

Sponsor engaged by the Company that performs the duties of ongoing supervision over the Company during the reporting period

□ Applicable □ N/A

Name of sponsor Period of continuous

Name of sponsor Office address of sponsor

representatives supervision

32/F Bohua Plaza No. 669

Guotai Haitong Securities

Xinzha Road Jing’an XU Jianhao WU Yihao 2025.6.27-2026.12.31

Co. Ltd.District Shanghai

VI. Key Accounting Data and Financial Indicators

Did the Company need to retrospectively adjust or restate any accounting data of prior years

□ Yes□ No

Y/Y %

202520242023

change

Operating revenue (RMB) 40124858839.52 36770374347.58 9.12% 33651205468.80

Net profit attributable to shareholders of the Listed 1386066705.56 1085641847.89 27.67% 1964525269.65

Company (RMB)

Net profit attributable to shareholders of the Listed

Company after deduction of non-recurring gain or 965995066.64 898627278.48 7.50% 1614534226.22

loss (RMB)

Net cash flows from operating activities (RMB) 5307141746.99 4986018688.48 6.44% 5172419470.20

Basic earnings per share (RMB/share) 0.79 0.64 23.44% 1.15

Diluted earnings per share (RMB/share) 0.79 0.64 23.44% 1.15

Weighted average return on net assets 6.89% 5.89% 1.00% 11.38%

December 31 December 31 Y/Y % December 31

2025 2024 change 2023

Total assets (RMB) 60250537094.98 46014173064.47 30.94% 44371719028.28

Net assets attributable to shareholders of the Listed

21461147972.5918826387269.3814.00%18143026745.54

Company (RMB)

Whether the lower of the net profit before and after the deduction of non-recurring gain or loss in the past three accounting years

9DSBJ Annual Report 2025

has been negative and the most recent annual auditor’s report indicates that the Company’s ability to continue as a going concern

is uncertain

□ Yes□ No

Whether the lower of the audited total profit and the net profit before and after the deduction of non-recurring gain or loss of the

Company during the reporting period is negative

□ Yes□ No

VII. Differences in Accounting Data under the Chinese Accounting Standards for Business

Enterprises (the “CASBEs”) and Overseas Accounting Standards

1. Differences in net profit and net assets disclosed in the financial report prepared under the

International Financial Reporting Standards (IFRS) and the CASBEs

□ Applicable□ N/A

There was no difference in net profit and net assets disclosed in the financial report for the reporting period prepared under the

IFRS and the CASBEs.

2. Differences in net profit and net assets disclosed in the financial report prepared under overseas

accounting standards and the CASBEs

□ Applicable□ N/A

There was no difference in net profit and net assets disclosed in the financial report for the reporting period prepared under

overseas accounting standards and the CASBEs.VIII. Key Financial Indicators by Quarter

In RMB

First quarter Second quarter Third quarter Fourth quarter

Operating revenue 8602240027.91 8352923870.98 10115463490.86 13054231449.77

Net profit attributable to shareholders of the 455862422.17 302143558.44 465271630.98 162789093.97

Listed Company

Net profit attributable to shareholders of the

Listed Company after deduction of non- 396749250.19 260050693.12 414311224.99 -105116101.66

recurring gain or loss

Net cash flows from operating activities 1365406591.51 1134711429.77 445723379.86 2361300345.85

Whether there’s any material difference between the financial metrics or aggregate amounts thereof set out above and the

corresponding financial metrics set out in any quarterly report or semi-annual report of the Company already disclosed

□ Yes□ No

IX. Items and Amounts of Non-recurring Gains or Losses

□ Applicable □ N/A

In RMB

Item 2025 2024 2023 Remark

Gain or loss on disposal of non-current assets (including -384012866.89 -268961359.34 -26367874.21

allowance for impairment of assets that has been written

10DSBJ Annual Report 2025

off)

Government grants recognized in profit or loss

(excluding the government grants that are closely

related to the business of the Company conform to the 331688417.02 483141623.05 249253139.50

applicable policies of the country are provided in

accordance with the established standards and

continuously affect the Company’s profit or loss)

Gain or loss on changes in fair value of financial assets

and financial liabilities held by non-financial entities

and gain or loss on disposal of financial assets and 69600586.93 -7601380.66 14283973.00

financial liabilities except for effective hedges held in

the ordinary course of business

Reversal of allowance for impairment loss on accounts

1250000.00

receivable assessed individually

Other non-operating revenues and expenses -41631510.60 -3547316.95 -398583.47

Investment

income

arising from

business

Other gain or loss within the meaning of non-recurring 470697770.08 combination134812863.84

gain or loss s involving

entities not

under

common

control

Less: Effect on income tax 23035787.38 13516787.94 22244723.86

Effect on minority interests (exclusive of tax) 3234970.24 2500208.75 597751.37

Total 420071638.92 187014569.41 349991043.43 --

Other items of gain or loss within the meaning of non-recurring gain or loss:

□ Applicable□ N/A

We do not have any other item of gain or loss within the meaning of non-recurring gains or losses.Classification of any item of non-recurring gain or loss defined by the Explanatory Announcement No. 1 on Information

Disclosure by Companies Publicly Offering Securities – Non-recurring Gain or Loss as recurring gain or loss:

□ Applicable□ N/A

We have not classified any item of non-recurring gain or loss defined by the Explanatory Announcement No. 1 on Information

Disclosure by Companies Publicly Offering Securities – Non-recurring Gain or Loss as recurring gain or loss.

11DSBJ Annual Report 2025

Section III Management’s Discussion and Analysis

I. Situations of Our Primary Business during the Reporting Period

We are an innovation-driven company focusing on the field of intelligent manufacturing and having a global perspective and

layout. Under the mission of “building a better connected world for tomorrow” and the vision of becoming a globally leading

solution provider for intelligent interconnection we are dedicated to providing advanced products and solutions for global leading

technology companies hence achieving interconnection among human beings equipment and infrastructure. Our main business

covers the global design production and sale of electronic circuits optical modules (including optical chips) precision

components and photoelectric display modules; our products are widely applied in the fields of consumer electronics vehicles

data centers communication equipment industrial control equipment etc. By providing all-round and one-stop comprehensive

services and continuously enhancing customer loyalty for cooperation we have established long-term stable strategic cooperation

relationships with global leading enterprises.

(1) Our main products and their applications:

Product Type Product features Mainapplication

The flexible PCB as a printed circuit board uses flexible materials like polyimide or

polyester films as the substrate and implements electric interconnection through a

copper foil layer. Thanks to its unique adaptability it can be bent folded and

twisted repeatedly without affecting the stability of its electric performance. This

flexible characteristic allows flexible PCBs to be seamlessly installed in narrow or

irregular spaces which not only reduces the weight but also achieves greater

freedom of design. With these characteristics flexible PCBs have become an ideal

solution for compact devices and application scenarios requiring portability and

durability.Our flexible PCB product series cover single-layer flexible PCBs multi-layer

flexible PCBs and FPCA which can directly integrate resistors capacitors

inductors and various functional chips onto the circuit. These products are specially

designed to meet the performance requirements of terminal products in various

industries. We can reduce the thickness of flexible PCBs to 0.05 mm at the Smartphones

Flexible PCB minimum; the optimization for ultra-thin and lightweight products helps to provide electric vehicle

compact solutions balancing space efficiency and performance. To ensure durability BMS systems

and reliability we use advanced materials to achieve high-temperature resistance and etc.Electronic keep signal integrity under harsh environments.circuit

Flexible PCBs are widely used in the fields of edge AI devices consumer

electronics and vehicle electronics. In edge AI devices our flexible PCBs are

playing a more and more important role in creating lighter and more advanced

products supporting high-performance functions within a smaller size. Our flexible

PCBs are used in the AI smartphones wearable devices and other smart devices of

multiple globally leading brands. In the vehicle field our flexible PCBs allow

complex wiring within a restricted space hence supporting key vehicle systems like

the battery management systems vehicle-mounted information and entertainment

systems etc. Keeping pace with the constant development of various industries our

flexible PCBs are always at the technology forefront to facilitate the development of

next generation AI devices that are smarter more compact and more effective.Rigid PCBs are printed circuit boards made with rigid substrates that cannot be bent AI servers 5G

or twisted. Our rigid PCB products cover single-layer PCBs multi-layer PCBs and base stations

HDI PCBs which can meet the demands of customers from various industries intelligent

Rigid PCB including AI computing consumer electronics etc. vehicles

AR&VR

Single-layer and double-layer PCBs are designed with a simple structure in which a devices

rigid substrate is used to separate single-layer or double-layer copper foil wiring. wearable

12DSBJ Annual Report 2025

Product Type Product features Mainapplication

Thanks to its cost effectiveness this solution is widely used in electronic systems devices

with intermediate complexity. Multi-layer PCBs containing multiple layers of robots etc.conductive copper separated by insulating materials help to achieve a higher density

of elements and greater electric performance. HDI PCB products help to achieve a

higher wiring density and smaller elements by using advanced through-hole

structures (e.g. blind vias and buried vias) hence further improving integration.In particular in applications with restricted spaces HLC PCBs and HDI PCBs can

be used to achieve a compact layout better signal performance and greater

reliability. Therefore these products are especially suitable for AI computing

infrastructure where high-frequency and high-speed data transfer plays an important

role. Our ELIC technology as a leading technology in the HDI PCB field can

connect any layers to achieve ultra-high-density wiring in extremely compact

designs. Our multi-layer PCBs and HDI PCBs use M8/9 materials with ultra-low loss

to achieve the transmission rate of up to 224Gbps which can meet the high

requirements of GPU AI accelerator cards AI servers and data center switches.Relying on our in-depth technology expertise in HLC PCBs and HDI PCBs we can

ensure high-speed low-loss interconnection with our products under harsh

environments. To meet the heat dissipation requirements of high-power applications

the embedded copper block buried copper column laser copper filling and other

technologies are employed to effectively improve the heat dissipation efficiency and

reliability of PCBs with enhanced heat dissipation.Rigid-flexible PCBs consisting of multiple rigid wiring layers and flexible wiring AI servers

boards achieve connection using electroplating through holes hence properly data center

matching with the structural design of compact and complex electronic products. switches

They combine the durability of rigid PCBs with the adaptability of flexible PCBs to intelligent

balance mechanical strength and design flexibility. The flexible portion allows vehicles

movement or folding while the rigid portion provides structural support and space smartphones

Rigid-flexible PCB for installed components. and tablet

This unique combination reduces the demands for connectors and wires simplifies computers

assembly efforts and improves reliability by eliminating potential faulty points. Our AR&VR

rigid-flexible PCB products are made with high-performance materials to ensure the devices CT

thermal stability and reliability under harsh environments. Therefore our products scanners

are especially suitable for industries like medical devices and vehicle systems industrial

which require devices having high performance within a small space. devicesrobots etc.On the basis of the subsidiary Source Photonics we are developing an optical chip

product system with high-speed EML chips at the core with the rate covering the

whole matrix from 2.5G to 200G; with whole-process independent development for

IDM and large-scale mass production our products have advantages of high

bandwidth low power consumption low transmission loss high extinction ratio

Optical outstanding yield rate in mass production large temperature range and high

module Optical chip reliability. Our main product is 100G/200G PAM4 EML high-end chips; given the Optical modulekey performance indicators and mass production capacities reaching the international

top level these products are fully suitable for optical module applications at 800G

1.6T and even higher rates. Meanwhile we are making forward-looking layout of

technologies like 400G EML and high-power CW light sources to meet the strict

application requirements in high-end scenarios of AI data centers and ultra-

computing power high-speed interconnection.

13DSBJ Annual Report 2025

Product Type Product features Mainapplication

Driven by the rapid development of AI computing and applications our data center

optical modules are specially designed to meet the requirements of AI infrastructure.We focus on 400G optical modules with QSFP-DD QSFP112 and OSFP packages

and OSFP and QSFP-DD 800G optical modules with the DSP LPO and LRO

architecture. Our 1.6T optical modules with multiple technology options including

EML silicon photonics and InP PIC achieve ultra-high-speed and low-latency

connections through OSFP and other compact packages. Our independently

developed 100G PAM4 EML chips have been used in 400G and 800G optical

modules by over ten million; the 200G PAM4 EML chips have reached mass

production to support 1.6T optical modules.Optical modules for

data centers Meanwhile our 400G PAM4 EML chips under development will empower 3.2T

Data centers

optical modules. In addition we are promoting the co-packaged optics technology etc.which directly integrates optical engines and switch chips in one package to greatly

shorten the signal path and reduce latency making it an ideal option for AI training

and inference.Our data center products are made with low-loss optical materials stable signal

integrity design and adaptive power management technologies to achieve stable

transmission and higher energy efficiency. These innovations not only reduce the

power consumption but also enhance cost advantages and durability empowering

our solutions to meet the high requirements of AI data centers on the rate and

bandwidth.Our telecommunication products mainly include products for optical transmission

wireless transmission and broadband transmission.Our optical transmission products being designed to meet the increasing

requirements of high-speed data transfer for metropolitan area networks access

networks and long-distance networks have the characteristics of high reliability and

long-distance transmission. These products support multiple size specifications and

data rates including SFP SFP+ SFP28 and QSFP-DD and have the transmission

capabilities covering 1G to 800Gb/s.Data centers

Our wireless transmission modules operate on the physical layer of wireless enterprise

Telecommunication networks to achieve accurate electrical - optical signal conversion and optical - dedicated line

optical modules electrical signal conversion supporting high-speed data interaction between BBU businessesAAU and DU hence providing stable and reliable connection for fronthaul core networks

midhaul and backhaul transmission. These modules are fully compatible with 5G base stations

and 5.5G network deployment. etc.Our broadband products are based on the PON architecture which is a point-to-

multipoint fiber-optical system connecting OLT to ONU/ONT through a passive

optical splitter with no power supply equipment on site. The products covering 10G

PON and 25G/50G PON and meeting the F5G and F5G-A standards are widely

deployed in FTTH enterprise broadband and campus networks to provide high-

speed data services for end users. The solutions equipped with our independently

developed 50G laser chips have been deployed in commercial 50G-PON projects to

empower high-speed broadband and AI data centers.We provide various automotive structural parts and functional module products to

meet the functional requirements of vehicles under continuous upgrade. Our core

products cover battery housings water-cooling boards EV motor housings etc.which play a key role in improving the vehicle dynamic performance operation

safety and energy utilization efficiency.Precision Automotive parts Battery housing Intelligentcomponent Battery housings are integral structural parts made of light-weight high-strength vehicles

aluminum alloy to contain battery modules and internal core elements providing

comprehensive protection for the battery system against external shocks. The

housings are equipped with an integral thermal management channel which can

greatly improve the heat dissipation efficiency; meanwhile the lower battery housing

is integrated with the vehicle chassis to lower the center of gravity of the entire

vehicle hence improving driving stability. We employ 8200-ton integral stamping

14DSBJ Annual Report 2025

Product Type Product features Mainapplication

and forming high-precision laser welding and other advanced technologies with a

supporting automatic CCD visual detection system to ensure the size accuracy and

consistent quality of products. Thanks to such manufacturing technologies our

products have outstanding safety and reliability to meet the requirements of the

power system for new energy vehicles.Water-cooling board

The water-cooling board is a liquid heat exchanger that rapidly takes away the heat

generated from the operation of high-power electronic components; it can achieve a

cooling system with a compact structure low noise during operation and high

reliability. Our ECU water-cooling boards can provide accurate temperature control

for the vehicle-mounted controllers of the powertrain vehicle safety and vehicle-

mounted information and entertainment system of new energy vehicles. The

products being manufactured through precision stamping and forming full-

automatic laser welding copper-aluminum reflow welding and other processes can

be closely integrated with PCB components to ensure the optimal operating

temperature for core elements under complex conditions hence achieving stable

performance output. Meanwhile we have the mass manufacturing capabilities for

traction drive motor cooling boards power battery pack cooling boards and SiC

inverter water-cooling boards.EV motor housing

EV motor housings are external structural protection housings for traction motors

and controllers which can effectively protect against external shocks and reduce the

loss caused by operation vibration. Reaching the protection level of IP54 and above

these products can meet the reliability requirements for long-time operation. The

housings are made through high-pressure vacuum casting and forming for which the

high-precision size tolerance of key holes are guaranteed with the cylinder liner

casting-in technology; meanwhile the full-automatic friction welding process is

employed to create a high-strength and sealed connection structure to achieve

outstanding anti-vibration capabilities and thermal cycling resistance.In addition GMD Group’s technology expertise in the body in white chassis

structure thermal management system and interior and exterior trim parts further

enriches our product matrix and improves our comprehensive capabilities for

providing one-stop integrated solutions for global vehicle manufacturers. Relying on

the manufacturing experience and technology accumulation built for a long period of

time in the field of vehicle precision structural parts we can meet the strict quality

management and control requirements of mainstream vehicle manufacturers and are

qualified suppliers for multiple global top manufacturers of conventional and new

energy vehicles.We can provide products of customized high-performance communication parts to

meet the requirements in the construction and upgrade of global communication

networks. Our core products cover antennas for mobile communication and wave

filters for mobile communication which can optimize the deployment adaptability

inside and outside base stations and improve the stability in signal transmission.Antennas for mobile communication

Components for Antennas for mobile communication as core radio frequency components of base

communication stations mainly implement signal reception and transmission between a base station

Base stations

devices and a mobile terminal to meet the requirements for the construction of a new

for mobile

generation of communication networks. Being made with technologies like low communication

passive inter-modulation high-power handling and wide-frequency coverage and

designed with high-gain low-transmission loss and low-wind resistance structure

these products can achieve performance indicators like phase shifter insertion loss of

< 0.7dB antenna gain ≥ 17.5dBi and passive inter-modulation better than - 153dBc

so as to effectively improve the operation efficiency of mobile communication

networks and ensure the high-quality signal reception and transmission.Wave filters for mobile communication

15DSBJ Annual Report 2025

Product Type Product features Mainapplication

Wave filters for mobile communication as core frequency-selecting components of

base stations can screen radio frequency signals of the specified frequency band and

filter out noise wave interference hence ensuring the purity of communication links

and operation stability of devices. These products being made with low passive

inter-modulation design and high-power metal-ceramic structure can achieve the

passive inter-modulation indicator better than -155dBc to achieve stable operation

performance under various working conditions. Meanwhile the volume of individual

products is reduced by 50% which effectively improves the space utilization rate for

the internal layout of base stations and convenience in device integration.Our communication parts are developed and designed with high reliability wide

adaptability and high performance in mind to meet the requirements of the technical

standards and applications for mainstream mobile communication networks around

the world.Touch panels are widely used in consumer electronics (tablet computers laptop Laptop

computers all-in-one computers) industrial control medical and vehicle (central computers

Touch panel control display copilot display and entertainment display for back rows)

industrial

applications; they can achieve the touch precision of ±1.0 mm and response time less control

than 30.0 ms. Thanks to the rapid response and adaptability for various complex equipment

environments they can be used in multiple industries. medicaldevices etc.Display modules (LCD&OLED) can be used to build “integrated solutions” for in-

depth combination of cutting-edge display technologies with high-reliability

structural design hence achieving breakthroughs in both performance and stability.Photoelectric

display Display modules are widely used in consumer electronics (mobile phones laptop

module computers all-in-one computers) industrial control medical and vehicle (dashboards central control display copilot display entertainment display for back rows

LCD and OLED electronic rear-view mirrors and HUD). They can achieve the brightness of up to

Consumer

modules 1000.0 nit to ensure clear visibility even under strong light and can achieve the

electronics

wide gamut of over 96.0% NTSC for consumer modules. intelligentvehicles etc.The display modules are integrated with devices seamlessly through the full-

lamination process to enhance durability and improve the optical clarity.Thanks to our automatic manufacturing procedures and strong supply chain we can

provide customized display modules with guaranteed high throughput consistent

quality and reliable delivery hence effectively meeting the requirements of global

customers from various industries.

16DSBJ Annual Report 2025

(II) Operating modes

We manufacture main products based on market demands and adopt the production model that determines production

according to sales under which we develop production plans and deliver products by taking into account the purchase orders

placed by customers the product quantities demanded by the customers as well as our production capacity and supply of raw

materials.

1. Purchase mode

Our main businesses covering electronic circuits optical modules (including optical chips) precision components

photoelectric display modules etc. require a wide variety of raw materials. Based on the purchase scale our main raw materials

include electronic components connectors display devices copper clad laminates cast parts wafers aluminum parts etc. We

make purchase from corresponding suppliers with reference to orders and production plans based on our information about the

lead time and quality of suppliers. Given that our products are mostly customized suppliers should be qualified by us or our

customers and we have to obtain the consent and certification from customers for new alternative suppliers. Generally we request

order-based prompt supply from suppliers instead of keeping a large number of surplus raw materials and parts; under certain

circumstances we may also require suppliers to establish a local warehouse to shorten the lead time of raw materials and reduce

our inventory. We purchase a wide variety of raw materials in large quantities. Our Group Purchase Management Center is

responsible for coordinating purchase activities within the group in which we promote green purchase and give full play to the

advantages of large-volume purchase and synergy effects of raw materials. We have established long-lasting stable and mutually

beneficial strategic cooperation relationships with core suppliers to ensure a stable supply chain and reduce purchase costs.

2. Production mode

We manufacture products based on market demands and adopt the production model that determines production according

to sales under which we develop production plans and promptly deliver products to customers after passing inspection by taking

into account the purchase orders placed by customers the product quantities demanded by the customers under such purchase

orders as well as our production capacity and supply of raw materials. We implement the ideas of green development and low-

carbon operation and we always give priority to development coordinating a new generation of information technologies with

manufacturing technologies taking intelligent manufacturing as the main direction for the integration of informatization and

industrialization and taking active measures to promote the construction of intelligent factories and digital workshops. On one

hand we make great efforts for automatic production and construction to improve production efficiency; on the other hand we

implement information-based production operation and management to achieve real-time management and control over the whole

production operation process hence increasing the product yield rates improving capacity utilization rate ensuring prompt

delivery of orders and ensuring the quality of products and services in compliance with normative standards and customer

requirements.

3. Sales mode

We sell directly to corporate customers. After we pass customers’ system certification and are admitted to their supplier

system customers will directly place orders to us. We implement the strategy of group-based coordinated sales and build

dedicated key-account service teams for various business segments to promptly respond to requests from customers. Focusing on

basic core devices in the field of intelligent interconnection we have built a rich product matrix after years of development.Thanks to the suitability of our products for a variety of industries and the strong synergy effects we achieved for R&D

technology supply chain product market etc. in different business segments the multi-product synergy advantages allow us to

provide customers with all-round one-stop comprehensive product solutions with leading technologies to meet customization

requests of customers to the largest extent.

17DSBJ Annual Report 2025

4. R&D mode

We have built an efficient R&D system focusing on independent R&D of core technologies and being oriented to meeting

the innovation needs of customers and we keep close pace with the strategic layout of industry leading customers and actively

participate in new product development by customers hence supporting customers in product iteration and function innovation.Meanwhile we strive to build platform-based R&D institutions and platform-based core technologies pay close attention to the

development dynamics of new technologies and new processes in the industry and conduct continuous and effective R&D

investment and study of cutting-edge technologies to maintain the leading position of the Company in technologies and processes

hence actively promoting the implementation update and iteration of downstream terminal products of the industry. With

importance attached to the education of technical talents we provide the talent support for the development of new technologies

and new products by measures of “talent education talent attraction and talent retention” and take active measures to coordinate

R&D resources and encourage cross-department joint development.In addition to the transformation and upgrade of our own technologies in our R&D activities we also pay attention to in-

depth cooperation with customers and the study of future industry trends. By properly combining flexibility coordination and

innovation we have built a R&D ecology system featuring sustainable development and high adaptability to meet the constantly

changing customer needs and market environments and promote coordinated innovation throughout the industry chain.II. Situations of Our Industry during the Reporting Period

We are primarily engaged in the R&D manufacturing and sale of electronic circuits optical modules (including optical

chips) precision components photoelectric display modules etc.(I) Development of the industry

1. Electronic circuit industry

Printed circuit boards (PCBs) as core basic components of electronic devices play a critical role in accurate electric

interconnection low-loss signal transfer and mechanical support and its performance directly determines the operating efficiency

and stability of electronic devices. In terms of the fields of application PCBs are widely used in core scenarios like consumer

electronics vehicles data centers communication etc. making PCBs an indispensable basic link for the electronic information

industry.Thanks to the explosive demands of AI and high-speed network infrastructure the global PCB market experienced rapid

growth. According to Prismark in 2025 the global PCB market was estimated to be USD 85.2 billion a year-on-year growth of

about 16% which exceeded previous expectation especially the growth of AI-related high layer count (HLC) PCBs and high-

density interconnect (HDI) PCBs. In the long run driven by multiple factors including AI infrastructure construction

restructuring of the global supply chain terminal intelligentization etc. the growth dynamics of the industry will be continuously

released. Prismark predicted that the global PCB market size would reach USD 95.8 billion by 2026 a year-on-year growth by

13%; the annual compound growth rate of the industry value would be about 7% from 2026 to 2029 and may exceed USD 116.0

billion by 2029. From 2025 to 2030 the fastest-growing fields will still be HLC PCBs (over 18 layers) HDI PCBs etc. In terms of

fields in 2025 the global market size of servers and memory was USD 413.0 billion a large increase by 42% year on year; it’s

expected that the annual compound growth rate would be 6% from 2026 to 2030 and the market size would reach USD 630.0

billion by 2030. Correspondingly the output value of servers and memory in 2025 was about USD 16.0 billion a year-on-year

18DSBJ Annual Report 2025

growth by 46%; the annual compound growth rate would be 13% from 2025 to 2029. The figures above show that AI-driven data

communication infrastructure is becoming the core engine to drive the upgrade and size expansion of the PCB industry.From the perspective of enterprise development the structural transformation of the PCB industry is creating relatively

certain development opportunities for us. On one hand in the field of consumer electronics the innovation for products like AI

terminals foldable screens and other products leads to continuously increasing quantity of FPC in use and value of individual

devices. Relying on the production capacity and technologies of MFLEX a top 2 manufacturer on the world we can provide a

stable cash flow and profit support for conventional businesses. On the other hand in the field of AI computing hardware the

growth center of the industry is transforming to HLC PCBs and HDI PCBs more and more quickly. Thanks to Multek’s

professional manufacturing capabilities of ultra-HLC PCBs with 78 or more layers and 7-stage thick HDI PCBs together with the

decisive investment of over USD 1.0 billion for expansion of high-end production capacity we can properly take the historical

development opportunities that the value of PCBs for AI servers is obviously greater than conventional products. The PCB

industry is experiencing a fundamental change under the two major trends of high-end consumer electronics and AI infrastructure

which opens a significant window for us to develop from a leading FPC manufacturer to a supplier of all high-end PCB products.

2. Optical module industry

The optical module technology employing the mechanism of electrical - optical - electrical signal conversion has developed

generational advantages in terms of the bandwidth capacity transfer distance anti-interference performance energy efficiency and

density etc. on the basis of the transfer characteristics of optical fiber which systematically solves the core transmission challenge

of large-traffic interaction and interconnection of wide area networks hence becoming a key technology supporting the upgrade of

communication networks and empowering computing infrastructure. The continuously increasing downstream bandwidth demands

lead to the iteration and upgrade of optical chip rates from 2.5G 10G 25G and 50G to 100G and 200G which directly determines

the transfer rate and application scenario positioning of optical modules.On the background of the continuously increasing global investment in computing power AI has become the core growth

engine for the market of optical module data communication. Lightcounting predicted that the global market size of data

communication optical modules would reach USD 22.8 billion by 2026 where the total market size of 800G and 1.6T optical

modules would reach USD 14.6 billion in 2026 accounting for about 64% of the total market size of all data communication

optical modules. Meanwhile it’s predicted that the global market size of telecommunication optical modules would be USD 5.3

billion by 2026. Generally speaking thanks to the rapid development of AI data centers the data communication market is

growing at an obviously faster rate than the conventional telecommunication market hence becoming the core driver for the

growth of the optical module industry. Lightcounting predicted that in the next three years high-speed optical modules of 800G

1.6T etc. would dominate the market demands while the quantity of 3.2T modules would increase gradually from 2028. It is

probable that the annual sales volume of optical interconnects used in AI clusters would reach USD 100.0 billion by 2030.As for the Company Source Photonics’ core competitive advantages will be more and more prominent under the trend of

rapid industry development. Source as one of the few global enterprises having an integral layout of optical modules + optical

chips employs the IDM mode to maintain independence at core stages; it is one of the few enterprises with mass production

capacities of 100G and 200G optical chips in China. Under the industry environment of supply shortage for high-end optical chips

and high dependence on others Source has prominent advantages in production capacity allocation and delivery response thanks

to its capabilities above. Meanwhile we are making active efforts to develop single-wavelength 400G optical chips hence

building a technology basis for the next generation of high-speed product upgrade. In terms of production capacity expansion

Source is accelerating the pace of building optical chip and optical module production capacities to effectively match with the pace

19DSBJ Annual Report 2025

of increasing quantity of downstream customers and the demand growth trend of the industry. In addition our comprehensive

advantages in key account services supply chain management delivery guarantee customer qualifications etc. can also

effectively support the further customer development for Source.

3. Precision component industry

The precision component industry is an industry where precision processing fast forming automatic control and other

relevant technologies are employed to design manufacture process assemble and sell structural parts functional modules and

complete devices with a complex structure and high precision. With the obvious characteristics of technology intensity high

precision requirements high-efficiency production high automation strong non-standard customization capabilities etc. this

industry has strict requirements on product consistency reliability and lead time. In terms of the industry chain structure the

upstream industry chain of the precision component industry is the supply of raw materials and manufacturing equipment mainly

including raw materials like metal materials and production equipment like cutting and forming equipment processing equipment

test and inspection equipment etc. The midstream of the industry chain is the precision processing and manufacturing stages that

is the processing of high-precision parts and functional modules and the assembly of complete devices by manufacturers. The

downstream of the industry chain is the application field of precision component products mainly including vehicles

communication devices etc. Given the constant upgrade of the downstream manufacturing industry and the faster and faster

emerging fields like 5G communication AI new energy vehicles etc. the global application demands for precision component

products are increasing hence creating a broad growth space for the development of the global precision component industry.We have profound technology expertise and core competitiveness in the field of precision components and have built a

mature and standard process system covering the stages of precision metal processing module-based integration precision

assembly etc. which can meet the strict requirements of vehicle customers for structural parts with high precision high

consistency and high reliability. In terms of production capacity and layout we have built a global supply network including

production bases located in Mexico the United States and Suzhou and Yancheng in China; moreover we have successfully

entered the European market through the acquisition of GMD Group in France which further increases our market shares in the

field of global automotive parts and improves our capabilities of local services. All our customers of the precision component

business are domestic and foreign leading automotive manufacturers; this outstanding customer structure not only provides stable

orders for us but also continuously promotes the introduction of new products and technology iteration. Generally speaking we

expect that our precision component business will achieve continuous and stable growth thanks to the growth period of the

industry.

4. Photoelectric display industry

Photoelectric display products as core devices for converting electrical signals into visual images are core parts for

electronic devices to present visual content and implement information and sensing interaction. Under the background of the

extensive spread of consumer electronics development of Internet communication technologies and accelerated penetration of AI

terminals the demands for information interaction are continuously increasing where photoelectric display products as an

important carrier are widely used in fields like vehicles consumer electronics etc. Driven by the technological innovation

application and extension and the increasing penetration of smart devices the global photoelectric display industry has been

developing stably where the mainstream technology routes mainly include LCD and OLED.Our photoelectric display products with touch panels and LCMs at the core are widely used in the fields of vehicles and

consumer electronics. In the field of vehicles the continuously increasing penetration of intelligent cockpits leads to the evolution

towards vehicle-mounted displays featuring larger sizes multiple displays and high definition and the vehicle-mounted display

20DSBJ Annual Report 2025

devices are upgrading from conventional information presentation carriers to the core medium for human-vehicle interaction

hence achieving human-vehicle interconnection. Relying on our technology accumulation and mass production capacity for touch

panels and display modules we can provide customers with integral display solutions and have been admitted to the supply chain

of multiple leading vehicle manufacturers. In the field of consumer electronics given the higher requirements of AI terminal

devices on display interaction touch panels and LCMs as the core components for human-machine interface are experiencing

stably increasing demands. Thanks to our large-scale production capacities and stable delivery capabilities we can promptly

respond to the demands of downstream brand customers. In general we expect continuous and stable growth of our photoelectric

display business driven by the upgrade of vehicle-mounted displays and interaction innovation of consumer electronics.(II) Main laws regulations and policies

Title of policy Authority Time Relevant policy content

Printed Circuit Board Industry

Specification Conditions Build quantitative standards for the PCB industry in aspects

Interim Measures for the Ministry of Industry of production capacity layout production scale process

Administration of the and Information 2019 technologies intelligent manufacturing green

Announcement on the Printed Technology manufacturing etc. to regulate the development of high-

Circuit Board Industry frequency high-speed and high-density PCBs for AI

Specification application

Action Plan for Developing Focus on the development of high-frequency high-speed

the Industry of Basic Ministry of Industryand Information 2021 high-layer and high-density printed circuit boards andElectronic Components Technology substrates for package of integrated circuits to support the(2021–2023) efforts for AI computing data centers servers etc.Statistical Classification of

Digital Economy and Its Core National Bureau of 2021 List printed circuit boards as a core industry of digital

Industries (2021) Statistics economy and AI PCBs as core products of digital economy

Catalogue of Industries for National Development Include core AI PCBs like high-density interconnect PCBs

Encouraging Foreign and Reform 2022 multi-layer flexible PCBs rigid-flexible printed circuit

Investment (2022 Edition) Commission Ministry boards and package carrier boards into the catalogue ofof Commerce industries encouraging foreign investment

Action Plan for Stable Growth

of the Electronic Information Ministry of Industry Support the upgrade of servers and advanced computing

Manufacturing Industry 2023– and Information 2023 terminals and increase the PCB demands for AI servers and

2024 Technology computing devices

Guidance Catalogue for National Development Clearly list high-density high-frequency and high-speed

Industrial Structure and Reform 2023 PCBs and package carrier boards as an encouraged industry

Adjustment (2024 Edition) Commission covering AI PCB products

Action Plan for Stable Growth Ministry of Industry

of the Electronic Information and Information Promote the layout of major projects for advanced

Manufacturing Industry 2025– Technology State 2025 computing servers etc. and promote the upgrade to high-

2026 Administration for end intelligent and green AI PCBsMarket Regulation

Action Plan for the

Coordinated Development of Ministry of Industry

Promote the coordinated construction of gigabit optical

and Information 2021 networks and 5G hence driving the demands of high-speed“Dual Gigabit” Networks Technology optical modules optical devices and optical transmission(2021–2023) devices

10 ministries including

“Sailing” Action Plan for 5G the Ministry of Industry Support the implementation of 5G applications increasing

Applications (2021–2023) and Information 2021 the market demands for optical communication networks

Technology high-speed optical modules and optical access devices

Plan for the Overall Layout of Central Committee of Optimize the layout of computing infrastructure promote the

Digital China the Chinese Communist 2023 coordination construction of optical communication

21DSBJ Annual Report 2025

Party State Council networks and nationally integrated computing networks

Implementation Opinions on

Deepening the ‘‘Eastern Data

and Western Computing’’ 5 ministries including Accelerate the efforts of building a national integrated

Project and Accelerating the the National 2023 computing network directly increasing the demands for

Construction of a National Development and 400G/800G high-speed optical modules and full-optical

Integrated Computing Reform Commission networks

Network

National Development

Work Priorities for Digital and Reform Properly make forward-looking layout of digital

Economy 2024 Commission National 2024 infrastructure to promote the coordinated development of

Data Administration optical communication networks and computing networks

National Development

and Reform

Commission National Promote the technology application of 400G/800G high-Guidelines for Building speed full-optical connection supporting high-efficient

National Data Infrastructure Data Administration 2025Ministry of Industry transmission of computing power and upgrade of optical

and Information communication

Technology

Ministry of Industry Achieve breakthroughs in high-speed interconnection busesAction Plan for Computing and Information 2025 and high-speed lossless network technologies to promote thePower Interconnection Technology in-depth integration of optical communication andcomputing networks

Notice on Pilot General Office of the

Implementation of 10-Gigabit Ministry of Industry

Promote efforts for building 10-gigabit optical networks

Optical Networks and Information

2025 driving the large-scale application of high-speed optical

Technology access modules and optical communication devicesAction for “Millisecond General Office of the Promote the 400Gbps deployment for metropolitan areaComputing” for Metropolitan Ministry of Industry

Areas and Information

2025 computing centers increasing the demands for high-speed

Technology optical modules and full-optical cross devices

III. Core Competencies of DSBJ

(I) Advantage in strategy: AI end-to-end layout to take early opportunities in a high-growth racetrack

Our strategy focuses on an end-to-end AI layout from the edge side to data centers. As an innovation-driven enterprise we

are dedicated to providing global top technology companies with advanced products and solutions by accurately taking the growth

opportunities for global high-speed interconnection and data transfer. Relying on the clear strategic positioning we have

established a leading position in multiple fields and industries: we are the top 3 global PCB supplier the top 2 global FPC supplier

and the top 1 global edge AI device PCB supplier; by acquiring Source Photonics we have emerged as a global core supplier ofoptical modules and built a layout of AI computing core hardware products featuring “optical modules (including optical chips) +AI PCB” making us the only enterprise having the whole-process capabilities covering PCBs optical chips and optical modules

from R&D designing and mass production on the world fully covering all scenario requirements from edge AI devices to large-

scale data centers hence establishing our long-lasting competitive advantages. By providing PCBs and high-speed optical module

products for AI DC we can help customers achieve data transfer with lower latency higher transmission rate and better energy

efficiency; meanwhile we engage in in-depth design cooperation with customers to shorten product development cycles and

improve system performance of terminal products. In general relying on the end-to-end whole-process capabilities in AI and our

coordinated and integrated technology system we can fully take the opportunities of business growth driven by AI for the future

and make use of the forward-looking layout of advanced processes and production capacities under the background of accelerated

AI penetration on the edge side and data center to continuously improve market shares.

22DSBJ Annual Report 2025

(II) Advantage in products: Achieve horizontal synergy among multiple product categories and leading vertical integration

making optical modules and optical chips as the core highlights

By combining external acquisition with endogenous growth we have built a comprehensive product system featuring full

horizontal coverage and vertical integration covering core businesses of electronic circuits optical modules (including optical

chips) precision components photoelectric display modules etc. which can provide whole-life cycle core device solutions for

customers in the fields of consumer electronics intelligent vehicles cloud service providers etc. hence achieving closed-loopvalue growth. Based on the opportunities of industry development created by AI technologies “optical modules (including opticalchips) + AI PCB” have become our core product highlights and a critical factor in differential competition. Relying on Source

Photonics we are capable of whole-process independent development and mass production of optical chip IDM hence becoming

one of the few domestic and even international players achieving mass production of high-end EML optical chips. With a full

product matrix covering the rates of 2.5G to 200G our main products are 100G/200G PAM4 EML high-end series with key

performance indicators and mass production capacities reaching the top international level. In the field of optical modules we

have a layout covering the whole industry chain with products for all rates from 10G to 1.6T; moreover we make continuous

efforts to promote the R&D of next generation optical modules at 3.2T and above to build a new core growth driver for the

Company. Multek has the professional manufacturing capabilities for ultra-HLC PCBs with 78 or more layers and 7-stage thick

HDI PCBs. Meanwhile we continuously maintain our leading position in the industry of electronic circuits; in the field of

precision components we have the capabilities of one-stop supply for core parts of vehicles making us the only supplier in the

industry that can supply multiple core parts for top vehicle manufacturers.(III) Advantage in technology: Drive innovation with leading product R&D capabilities in the industry

We always put technological innovation at the core strategic position for corporate development. We deeply participate in

preliminary development conducted by leading industry customers accurately understand the trend of cutting-edge technologies

build an efficient coordinated R&D mechanism and actively engage in industry-university-research cooperation with top

universities research institutions and industry organizations so as to accelerate the conversion of cutting-edge innovation and

research results to inject endless dynamics for high-quality development of the Company. With continuous efforts for R&D

acquisition and integration we have built unique advantages in electronic circuits optical modules (including optical chips)

precision components and photoelectric display modules. In the field of optical communication relying on Source Photonics we

have built a whole-process technology system covering the manufacturing of optical chips to optical modules which provides a

core support for us to compete on the global optical communication market. Operating in the industry for many years Source

Photonics has independently developed multiple key core technologies and built independent core technologies for optical chips

under its control; meanwhile with its independently developed chip package and reliability verification system it stays at the

industry forefront in the R&D and commercial operation of ultra-high-speed optical modules. At present we are making active

efforts for the R&D of optical modules at 3.2T and above which can fully meet the requirements of AI data centers and other

scenarios for ultra-large bandwidth interconnection and prepare for the next generation core technologies so as to provide solid

technology guarantee for the iteration and upgrade of ultra-high-speed optical modules and help the Company maintain its leading

position on the high-end racetrack of optical communication. Meanwhile relying on our technology advantages in electronic

circuits precision components and photoelectric display modules we will continuously consolidate our leading position in the

industry to facilitate the high-quality development of the Company.(IV) Advantage in scale: Globally leading production capacity to achieve prominent synergy effects

Based on years of operation and forward-looking strategic layout we have built a globally leading and modern production

capacity platform with prominent scale effects and comprehensive support systems making us capable of large-scale lean

manufacturing whole-process quality management and control and efficient and stable delivery which is leading in the industry.Our new production capacity is planned in close alignment with the pace of industry technology iteration and the medium- to long-

23DSBJ Annual Report 2025

term development requirements of key downstream customers; by continuously improving the production capacity structure

improving the efficiency of resource allocation and enhancing coordinated operation of the whole industry we can constantly

maximize operating benefits consolidate our leading position in the industry and build a solid foundation for long-lasting core

competitiveness. In terms of core products in the fields of FPC and precision structural parts we have built prominent production

capacity barriers on the basis of large-scale manufacturing advantages fine management systems and capabilities of rapid

response which puts us in a leading position in terms of product yield rate delivery efficiency and comprehensive cost control

and facilities stable and reliable supply of core components for downstream customers. In the field of AI core hardware we have

built a comprehensive product matrix and production capacity expansion layout focusing on high added-value products like

optical modules (including optical chips) AI PCB etc. At present our production capacity expansion projects are progressing in

order as planned capacity ramping is under implementation smoothly and the capability of large-scale supply is improving

continuously so as to fully match with the increasing purchase demands of overseas mainstream cloud service providers to

provide a strong support for the construction of global computing infrastructure.(V) Advantage in customers: Serving global top customers to build long-term cooperation barriers

Relying on outstanding product quality technology strength and delivery capabilities we have accumulated global

outstanding customer resources and built a customer base consisting of four of the top five global consumer electronics brands

and four of the top five global pure electric vehicle manufacturers and the top five cloud service provides covering multiple high-

growth industries like consumer electronics vehicles cloud services communication devices etc. which can defend against the

seasonal and periodical risks of individual industries. We establish long-term and in-depth strategic cooperation relationship with

core customers participate in product definition at the early stage of customers’ products closely follow the trends of technology

routes and accelerate product iteration through coordinated designing; after being admitted to customers’ supply chain we make

use of our rich product portfolio technology expertise and large-scale production capacity for extension to orders of associated

products hence increasing sales to customers. For example since the acquisition of MFLEX we have been providing flexible

PCB products for global leading consumer electronics manufacturers extending the application scope from smartphones to all

consumer electronics product categories and new energy vehicles; in the vehicle field we are providing integration solutions for

global leading high-performance manufacturers while continuously improving customer loyalty. Relying on the manufacturing

capabilities of vertical integration of optical chips and optical modules Source Photonics has become one of the core suppliers of

global optical modules which creates a bigger growth space for the Company in the field of AI computing hardware.(VI) Advantage in globalization and operation: Global layout and efficient coordination with prominent synergy effects

We are deeply participating in the global supply chain system to build a global network for R&D production and sale in all

aspects. We have established R&D teams in multiple countries and regions including Chinese mainland Taiwan Region the

United States Singapore France etc. to attract local high-end professionals; meanwhile we have production facilities in 15

countries and regions covering Asia North America Europe and Africa which builds an efficient operation layout featuring

“global R&D local production and integrated services” to rapidly respond to customer needs throughout the world and flexibly

address the complex and volatile international trade environment. In the field of intelligent manufacturing we have built an

industry leading intelligent manufacturing system with AI empowering and data driver as the core in which advanced

technologies like machine visual AI detection and SMT automatic production line are widely used; moreover we have built a

production central control center to implement whole-process coordinated management and control. Many of our production bases

won many honors including the National Intelligent Manufacturing Demonstration Factory granted by the Ministry of Industry

and Information Technology and Jiangsu Provincial Industrial Internet Benchmark Factory which significantly improves the

scale of production capacities product yield rates and production efficiency effectively reduces manufacturing costs and ensures

product quality consistency and stability. Relying on the global network of production capacities we can implement local rapid

24DSBJ Annual Report 2025

delivery close to the end market which reduces logistics costs improves response speed and enhances the anti-risk capabilities

for the supply chain hence providing a solid support for the continuous and stable development of global businesses.(VII) Advantage in management and synergy: Efficient management to empower whole-process synergy

We have a management team with international understanding and forward-looking perspectives which can make accuratestrategic judgment and implement efficient strategy implementation. We advocate the corporate spirit of “breakthrough diversitysimplicity journey” stick to the management principle of “overall planning delegation of powers in business operation supportby the platform and centralized supervision” and have built a scientific and efficient modern management system. Meanwhile

having built mature experience in cross-border acquisition and resource integration we can rapidly promote cultural integration

with and performance improvement of the acquired target company. By completing multiple benchmark acquisition transactions in

the industry including Mflex Multek Source Photonics GMD Group etc. we have successfully entered a high-growth racetrack;

we will make continuous efforts to improve our product portfolio and global layout of production capacities build strict and

regulated acquisition selecting and post-investment integration systems and efficiently achieve in-depth integration with acquired

targets and release value by means of customer expansion organizational structure optimization supply chain synergy and

integration incentive mechanism improvement etc. In addition we have achieved prominent synergy effects among various

business segments: in terms of customer synergy we effectively improved customer loyalty and comprehensive shares by sharing

advantageous resources in multiple product categories including PCBs optical modules precision components etc.; in terms of

technology synergy we accelerated technology breakthrough and product iteration through interdisciplinary cooperation and

innovation among R&D teams of various products; and in terms of supply chain synergy we significantly improved the supply

chain resilience and cost competitiveness thanks to optimized resource allocation relying on globalized production capacities and

centralized purchase networks hence supporting the long-lasting high-quality development of the Company in all aspects.IV. Analysis of Primary Business

1. Overview

The year 2025 is a critical year witnessing the diverging trends in economic recovery on the world and continuously

accelerating transformation and upgrade of the manufacturing industry. Facing the complex and volatile external environment we

developed in-depth insight into the opportunities for industry development created by AI technologies took active measures to

give full play to our advantages by effectively and decisively entering the racetrack of optical modules and accelerated investmentin production capacity of AI PCBs hence rapidly creating the synergy effects for core devices of AI data centers featuring “opticalmodules (including optical chips) + AI PCB”. After the new round of industry upgrade we have established a development

strategy with both “offensive and defensive characteristics” where conventional businesses (core devices for consumer electronics

+ core parts for vehicles) help to achieve stable profits and consolidate our foundation while new businesses (optical modules

(including optical chips) + AI PCB) are intended for expansion in the future enhancing development dynamics and buildingunique competition barriers for us. In terms of operation insisting on the operating strategy of “focusing on main businessesstable operation improving quality and efficiency” we made steady progress in all key tasks in this year including putting new

production capacity into operation to increase production volumes smoothly completing private placement and acquisition

smoothly separating non-core businesses and making continuous improvement in routine operation hence achieving established

core operating objectives and providing a solid foundation for long-lasting high-quality development of the Company. In 2025 we

recorded an operating revenue of RMB 40.125 billion a year-on-year increase of 9.12%; achieved the net profit of RMB 1.386

billion increasing by 27.67% year on year and achieved the net operating cash inflow of RMB 5.307 billion increasing by 6.44%

year on year. The overall tasks in the year are summarized as follows:

25DSBJ Annual Report 2025I. Took industry development opportunities to build dual growth engines for core devices featuring “optical modules(including optical chips) + AI PCB”

During the reporting period the continuous explosive growth of AI computing led to the scale expansion of global data

centers where all top cloud providers increased capital expenditures and infrastructure investment. We made accurate efforts to

take the strategic opportunities of the explosive development of the AI industry by implementing an in-depth layout covering the

core device racetrack for AI industry hardware endeavoring to build new dynamics for industry development. By acquiring

Source to rapidly enter the optical module industry we have become one of the few global players achieving vertical integration of

optical chips with optical modules. After this transaction was decided we made full use of our capabilities and advantages in

acquisition and integration to achieve synergy and empowering effects in aspects of funds talents technologies customers etc. to

support Source in production capacity expansion and new customer development and achieved favorable results. Relying on

Multek’s profound technology expertise in the field of high-end PCBs we transformed old factories and constructed new factories

to upgrade and arrange production capacities for HDI and HLC PCBs and took active measures to meet the strong demands of

downstream AI data center customers for high-end PCBs. By now we have become the only supplier capable of providing

“optical modules (including optical chips) + AI PCB” high-quality products in the industry. On the basis of the diversified productmatrix with clear layers and complementary advantages we always insist on the mission of “building a better connected world fortomorrow” and make continuous efforts to build dual growth engines to drive the high-quality development of the Company.II. Continuously focused on core businesses to build the development foundation with both “offensive and defensivecharacteristics”

We took conventional advantageous businesses including printed circuit boards precision structural parts photoelectric

display modules etc. for consumer electronics and vehicles as our cornerstone and made continuous efforts to consolidate our

operating foundation by means of diversified customer structure intelligent and information-based factory operation and

capabilities of continuous product iteration and upgrade. The continuous and stable customer relationship ensured stable revenue

and profits for us and provided the continuous and stable cash flow to support the long-lasting and stable operation of the

Company. Meanwhile we took the historical opportunities of the rapid construction of global data centers driven by the explosivedemands of AI computing and made all efforts to build the third growth curve for our core profits with “optical modules(including optical chips) + AI PCB” core devices as critical measures by means of forward-looking layout and accurate investment.Under the strategy of coordinated development for “building a stable foundation with conventional businesses and entering newracetracks with emerging businesses” we effectively protected ourselves against the periodical fluctuation of the industry and

continuously improved our management and control of operating risks so as to move forward on the basis of stable operation and

improve quality while moving forward and supported the Company on the path of more resilient more dynamic and more

sustainable high-quality development.III. Made stable efforts to promote global strategic layout and continuously improved synergy along the entire industry chain

We completed the strategic acquisition of GMD Group in France during the reporting period. This acquisition effectively

expanded our customer resources in the vehicle field; more importantly the production and operation base built by GMD Group

on the basis of European vehicle customers will become an important strategic support for us to operate in the European and North

African markets hence further improving regional production capacity layout and coverage of customer resources and effectively

promoting the continuous implementation of our global industry layout. By now the proportion of overseas employees has

exceeded 20% with an international talent team taking shape preliminarily. We always insisted on the strategy of global

development to actively integrate outstanding global resources and continuously optimize the overseas industry layout. By now

with management manufacturing R&D and service bases covering multiple countries and regions including China the United

States France Germany Spain Portugal Singapore Thailand Morocco Mexico etc. we have built a manufacturing system with

regional synergy covering Asia America Europe and Africa hence creating an efficient resilient and reliable global industry

26DSBJ Annual Report 2025

network. With the mature and comprehensive global layout we can come close to regional markets develop accurate insight into

and rapidly respond to global market trends and changes in customer demands significantly improve delivery efficiency and

service capabilities and continuously consolidate our global core competitive advantages hence providing a solid foundation for

high-quality sustainable development.IV. Focused on product innovation and consolidated development foundation to continuously meet customer requirements

We always insisted on innovation-driven development by taking new product R&D as a core priority for development

continuously increasing investment in R&D focusing on breakthroughs in core technologies for key products in strategic

emerging fields like high-speed optical chips optical modules AI PCBs etc. continuously enhancing forward-looking R&D

layout and investment of outstanding resources and emphasizing technology breakthrough and iteration of product systems to

improve product competitiveness with core technologies. Meanwhile we maintained in-depth alignment with forefront dynamics

of the market and core needs of customers to achieve joint movement of and mutual empowering between product R&D and

market development. To accelerate technology conversion and improve innovation efficiency we continuously deepened the

industry-university-research coordinated innovation mechanism by actively cooperating with domestic and foreign research

institutions and universities to jointly build an innovation platform and promoted the efficient implementation and conversion of

scientific and technology innovation results so as to achieve in-depth integration and coordinated development of technology

breakthroughs product iteration and market expansion. In addition we made great efforts to promote the engineer culture and

fully release the innovation dynamics and creation potential of R&D teams so as to provide a solid talent support and guarantee

for product innovation technology breakthrough and implementation of various strategies help the Company consolidate the

development foundation with continuous innovation and continuously meet customer needs with high-quality products.V. Enhanced organization and talent building for joint efforts to promote high-quality development

Focusing on our overall strategic development layout we made continuous efforts to deepen organizational transformation

and talent team building in this year to comprehensively improve cross-country and cross-region organization operation efficiency

and core cohesiveness. Firstly we optimized the organizational structure. With reference to actual needs for acquisition and

integration expansion of emerging businesses etc. we adjusted the organizational system flexibly and effectively to integrate

global talent resources and overcome obstacles for cross-department and cross-region coordination which greatly improved

organization operation efficiency and ensured the accurate and efficient implementation of various strategic measures. Secondly

we endeavored to attract and educate talents by continuously implementing the “Evergreen” talent strategy and enhancing efforts

for attracting outstanding domestic and overseas fresh graduates medium- and high-level professional technicians and core

management talents; meanwhile we improved the system for internal talent development and promotion and provided customized

and professional training focusing on core businesses and emerging fields so as to improve the comprehensive competence of

employees in all aspects to build an high-quality professional and international outstanding talent team. Thirdly based on thecorporate culture we made continuous efforts for in-depth implementation of our core values of “openness inclusion pragmatismand enterprising”. We promoted intercultural communication and common understanding of values improved the diversified

incentive system and employee care mechanism and actually improved employee sense of belonging sense of achievement and

sense of happiness hence promoting synergy between individual growth with the corporate vision and building the inherent force

to promote the long-lasting and stable corporate development.VI. Implemented active and stable financial policies to fully guarantee the implementation of the strategic layout

We insisted on active and stable financial policies to keep close alignment with the changes in the external economic

environment market fluctuation and industry policies and constantly optimize the financial management and control system.Firstly we optimized the capital and debt structure to plan and use funds in a scientific and coordinated manner. We mainly

invested funds in strategic fields like expansion of emerging businesses and building of core production capacities and improved

27DSBJ Annual Report 2025

the efficiency of fund utilization. Meanwhile we took active measures to expand diversified financing channels guaranteeing the

funds for our key strategies like global layout industry upgrade etc. Secondly we built a firm line of defense against risks. We

insisted on the operating idea of “cash first” emphasized operating cash flow of enterprises and optimized fund liquidity planning

and the comprehensive management system for budget and final accounts so as to maintain a safe and stable corporate fund chain.We improved the risk management mechanism concerning fluctuation in exchange rates and commodity prices on the principle of

risk neutrality and used professional hedging tools to effectively address market fluctuation risks. We enhanced fine financial

management and control to improve the whole-process management and control mechanism for corporate operation. Thirdly we

deepened integration between businesses and financial by promoting in-depth coordination between financial departments and

business departments focusing on the core objectives of improving quality and efficiency; we enhanced whole-chain cost

management and control continuously optimized the profitability structure to improve corporate profits and achieved closed-loop

management from strategy formulation to implementation hence providing a stable and reliable financial guarantee for the smooth

implementation of various measures and the achievement of strategic objectives. Fourthly we continuously improved global

financial management capabilities by improving the financial management capabilities over overseas bases by means of system

building regulation improvement process update regular training talent communication etc. so as to smoothly connect overseas

subsidiaries newly included in the scope of consolidation with the group’s financial management system.

2. Revenue and costs

(1) Components of operating revenue

In RMB

20252024

% of operating % of operating Y/Y % change

Amount Amount

revenue revenue

Total operating

40124858839.52100%36770374347.58100%9.12%

revenue

By segment

Computer

communication

39643732616.0498.80%36479191979.2099.21%8.67%

and other

electronics

Others 481126223.48 1.20% 291182368.38 0.79% 65.23%

By product

Electronic circuits 25620292915.99 63.85% 24800813670.87 67.45% 3.30%

Photoelectric 5985629058.48 14.92% 6369925398.02 17.32% -6.03%

display module

Precision 5930242495.99 14.78% 4540319354.27 12.35% 30.61%

components

Optical module 1435534921.96 3.58%

Others 1153159447.10 2.87% 1059315924.42 2.88% 8.86%

By region

Domestic market 7459672435.12 18.59% 6187309236.49 16.83% 20.56%

Overseas market 32665186404.40 81.41% 30583065111.09 83.17% 6.81%

By sales model

Direct sales 40124858839.52 100.00% 36770374347.58 100.00% 9.12%

(2) Segments products regions or sales models representing more than 10% of operating revenue or profit

□ Applicable □ N/A

28DSBJ Annual Report 2025

In RMB

Y/Y % change Y/Y % change Y/Y %

Gross

Operating revenue Operating cost in operating in operating change in

margin

revenue cost gross margin

By segment

Computer

communication and 39643732616.04 34153971460.65 13.85% 8.67% 8.83% -0.12%

other electronics

By product

Electronic circuits 25620292915.99 21113572455.81 17.59% 3.30% 4.25% -0.75%

Photoelectric display 5985629058.48 5675456101.15 5.18% -6.03% -7.84% 1.86%

module

Precision components 5930242495.99 5383316361.13 9.22% 30.61% 38.36% -5.08%

Optical module 1435534921.96 908137144.50 36.74%

By region

Domestic market 7459672435.12 7157096931.64 4.06% 20.56% 20.56% 0.00%

Overseas market 32665186404.40 27315572817.13 16.38% 6.81% 6.37% 0.34%

By sales model

Direct sales 40124858839.52 34472669748.77 14.09% 9.12% 9.04% 0.07%

In case of any adjustment to the statistic scale for primary business data the primary business data of the most recent reporting

period as adjusted according to the statistic scale applied at the end of the reporting period:

□ Applicable□ N/A

(3) Whether the Company’s revenue from the sale of tangible goods is higher than the revenue from labor services

□ Yes □ No

Segment Item Unit 2025 2024 Y/Y % change

Sales volume m2 6693546.90 5544309.55 20.73%

Electronic circuits Output m2 6978762.29 5579598.88 25.08%

Inventories m2 429386.72 144171.33 197.83%

Sales volume PC 9487921.00 14178588.00 -33.08%

Photoelectric Output PC 9565558.00 14511811.00 -34.08%

display module Inventories PC 4231468.00 4153831.00 1.87%

Sales volume PC 2793339.00

Optical module Output PC 2872624.00

Inventories PC 410579.00

Sales volume PC 183720228.00 142828973.00 28.63%

Precision Output PC 190751830.00 143509247.00 32.92%

components Inventories PC 38519272.00 31487670.00 22.33%

Analysis of changes in the relevant data over 30% compared to the previous year:

□ Applicable □ N/A

1. The inventory of electronic circuits increased by 197.83% year on year primarily due to the inventory increase in the fourth

quarter intended for the sales in the first quarter.

2. The production volume of precision component products increased by 32.92% year on year which besides the acquisition of

GMD Group in France in the fourth quarter is primarily due to the additional production and sales volumes from several

production bases that were put into operation.

29DSBJ Annual Report 2025

(4) Performance of material sales contracts and material purchase contracts by the Company as of the end of the reporting

period

□ Applicable□ N/A

(5) Components of operating costs

In RMB

20252024

Category of Item Y/Y %products Amount % of operatingcosts Amount % of operating costs

change

Direct

material 24274267869.12 71.07% 22405786966.83 71.39% 8.34%

Computer costs

communication Direct

and other labor 2476423594.48 7.25% 2243766105.86 7.15% 10.37%

electronics costsManufact

uring 7403279997.04 21.68% 6734599541.12 21.46% 9.93%

expenses

(6) Changes in the scope of consolidation during the reporting period

□ Yes □ No

Company name Method of acquisition or disposal

Source Photonics Acquisition

GMD Group Acquisition

DSBJ Europe Holding Newly established

DSBJ International Deregistration

(7) Material changes or adjustments in respect of business products or services of the Company during the reporting

period

□ Applicable □ N/A

During the reporting period by acquiring Source Photonics we successfully entered the field of optical communication and

added the relevant business of optical modules (including optical chips). This business expansion as a critical step for our strategic

layout for the AI computing infrastructure and high-speed communication market will further improve our industry ecology in the

field of high-end electronics manufacturing so as to provide one-stop solutions for customers from AI server PCBs to high-speed

optical interconnect devices and enhance the synergy effects in the AI computing industry chain.

(8) Major customers and suppliers

Major customers of the Company

Aggregate sales revenue from the top 5 customers (RMB) 25814059702.20

Proportion of aggregate sales revenue from the top 5 customers

64.33%

to annual sales revenue

Proportion of aggregate sales revenue from related parties

0.00%

among the top 5 customers to annual sales revenue

Particulars of the top 5 customers

30DSBJ Annual Report 2025

No. Name of customer Sales revenue (RMB) % of annual sales revenue

1 Top 1 18642838150.75 46.46%

2 Top 2 2809002571.15 7.00%

3 Top 3 2281029373.69 5.68%

4 Top 4 1234755113.48 3.08%

5 Top 5 846434493.13 2.11%

Total -- 25814059702.20 64.33%

Other information of major customers

□ Applicable□ N/A

Major suppliers of the Company

Aggregate purchase amount from the top 5 suppliers (RMB) 5737450383.42

Proportion of aggregate purchase amount from the top 5

21.87%

suppliers to annual purchase cost

Proportion of aggregate purchase amount from related parties

0.00%

among the top 5 suppliers to annual purchase cost

Particulars of the top 5 suppliers

No. Name of supplier Purchase amount (RMB) % of annual purchase cost

1 Top 1 1463828472.13 5.58%

2 Top 2 1324158723.58 5.05%

3 Top 3 1101289313.19 4.20%

4 Top 4 1074253017.17 4.09%

5 Top 5 773920857.35 2.95%

Total -- 5737450383.42 21.87%

Other information of major suppliers

□ Applicable□ N/A

During the reporting period the revenue from trading businesses accounts for over 10% of the operating revenue

□ Applicable□ N/A

3. Expenses

In RMB

Y/Y %

2025 2024 Reason for material changes

change

Selling

445146409.06454017787.21-1.95%

expenses

Administrative

1414555307.761112402085.4427.16%

expenses

Financial Primarily due to changes in exchange gains and losses

262462930.55-58736447.60546.85%

expenses caused by fluctuation in USD/RMB exchange rate.R&D

1417226723.871266812544.2311.87%

expenses

4. R&D expenses

□ Applicable □ N/A

31DSBJ Annual Report 2025

Description of major Purpose Progress Expected effect on the future development of theR&D project Company

Intended for application scenarios of the

next generation of CPO/NPO switches. Given the expansion of AI computing clusters and

6.4T ELSFP DR8 Provide an external pluggable laser light the increased density for optical interconnect

PLS 6.4T 8- source module for ELSFP package of ELSFP will become a critical support for large-

wavelength ELSFP CPO/NPO. It separates lasers with a high Under scale implementation of CPO. We use

packaged external fault rate from the optical engine and makes developmen independently developed CW lasers for the layout

light source it as a pluggable module (ELSFP) which t of ELSFP optical modules which can build an

pluggable optical maintains the maintenance advantages in hot advantageous foundation for the external light

module pluggable and avoids the risks of scraping source modules for CPO/NPO optical transceivers

the entire ASIC chip due to a faulty optical intended for next generation data centers hence

engine in the CPO/NPO solution. preparing for revenue growth in the future.Intended for the Scale-Up application

scenarios of ultra-large-scale AI clusters

providing high-density optical interconnect

CPX/NPO solutions better than copper cable

transfer. Explore a path of product

preliminary research and development under

6.4T/3.2T NPO cooperation of multiple parties for product Make preparation in technology and product for

6.4T/3.2T near- designing process development production Plan under the Company to achieve breakthroughs in revenues

packaged optics testing and supply chain based on high- assessment from Scale-Up optical interconnect incremental

modules density ultra-high-speed optoelectronic markets in the future.integration and advanced package; achieve

breakthroughs in key technologies like high-

speed high-density signal integrity heat

dissipation management optoelectronic

integration etc. to build early mover

advantages for next generation products.Facing the ultra-high bandwidth density

requirements and power challenge raised by

the Scale-up and Scale-out network

architecture for the next generation large-

6.4T/12.8T XPO scale AI clusters explore the solution for

Explore the solution for next generation optical

2xDR4 next generation optical interconnect and

Plan under interconnect making technology preparation for

build a pluggable optical module featuring assessment the Company to achieve stable revenue growth in

high performance high density high energy the long run.efficiency ratio and ease of maintenance

developed and designed for the large-scale

AI clusters.Establish our leading technology position in the

Break through the core bottleneck for next generational switch of the industry taking the

generation data centers to evolve from benefits of the window for iteration of AI

3.2T OSFP-XD DR8 800G/1.6T to 3.2T and achieve 3.2Tbps infrastructure. The creation of the high-speed

3.2T 8-channel transfer rate through a single port hence Plan under optical engine and advanced package technologies

OSFP packaged meeting the urgent requirements of AI assessment not only greatly increases the added value and

optical module clusters and ultra-large-scale data centers on gross profit margin of products but also achieves

ultra-high bandwidth low latency and low in-depth binding with top cloud providers to build

power consumption. core competitive barriers hence creating a revenuegrowth driver on the data communication market

in the future.

1) Take the early opportunities for the market of

next generation data center interconnect and

Facing the requirements of next generation improve the technology barriers and shares in

1.6T OSFP DR8 data centers develop high-performance ultra-high-speed optical modules. Enhance loyalty

3nm optical modules with the rate of 1600Gbps to of top cloud provider customers to drive the

1.6T 8-channel EML achieve breakthroughs in critical Small-scale revenue from high-speed products for the next 2–3

solution for 500- technologies in high-speed signal integrity trial years.meter OSFP flip chip process thermal management production 2) Use independently developed EML to

packaged optical power consumption control etc. hence demonstrate our R&D strength mass production

module building first early mover advantages for capabilities and complete and controllable supply

next generation products. chain; optimize power consumption and costs to

meet the requirements of high-density and low-

power consumption computing scenarios.

1.6T OSFP 2*FR4 Facing the requirements of next generation Sample 1) Take the early opportunities for the market of

3nm data centers develop high-performance production next generation data center interconnect and

32DSBJ Annual Report 2025

Description of major Purpose Progress Expected effect on the future development of theR&D project Company

1.6T 8-channel optical modules with the rate of 1600Gbps to improve the technology barriers and shares in

CWDM EML achieve breakthroughs in critical ultra-high-speed optical modules. Enhance loyalty

solution for 2000- technologies in high-speed signal integrity of top cloud provider customers to drive the

meter OSFP flip chip process thermal management revenue from high-speed products for the next 2–3

packaged optical power consumption control etc. hence years.module building first early mover advantages for 2) Use independently developed EML to

next generation products. demonstrate our R&D strength mass production

capabilities and complete and controllable supply

chain; optimize power consumption and costs to

meet the requirements of high-density and low-

power consumption computing scenarios.

1) Take the early opportunities for the market of

next generation data center interconnect and

Facing the requirements of next generation improve the technology barriers and shares in

1.6T OSFP 2LR4 data centers develop high-performance ultra-high-speed optical modules. Enhance loyalty

3nm optical modules with the rate of 1600Gbps to of top cloud provider customers to drive the

1.6T 4-channel EML achieve breakthroughs in critical revenue from high-speed products for the next 2–3

solution for 10km technologies in high-speed signal integrity

Sample

production years.OSFP packaged flip chip process thermal management 2) Use independently developed EML to

optical module + B5 power consumption control etc. hence demonstrate our R&D strength mass productionbuilding first early mover advantages for capabilities and complete and controllable supply

next generation products. chain; optimize power consumption and costs to

meet the requirements of high-density and low-

power consumption computing scenarios.

1.6T OSFP 1) Take the early opportunities for the market of

DR8&2xFR4 Sipho Facing the requirements of next generation next generation data center interconnect and

with BRCM and data centers develop high-performance improve the technology barriers and shares in

Xphor PIC optical modules with the rate of 1600Gbps to Plan under ultra-high-speed optical modules. Enhance loyalty

1.6T 8-channel achieve breakthroughs in critical verification of top cloud provider customers to drive the

silicon photonics technologies in high-speed signal integrity and sample revenue from high-speed products for the next 2–3

solution for thermal management power consumption production years.

500m&2000m control etc. hence building first early mover 2) Build silicon photonics integration capabilities

OSFP packaged advantages for next generation products. and optimize power consumption and costs to meet

optical module the requirements of high-density and low-powerconsumption computing scenarios.Expand our 1.6T high-speed optical module

1.6T OSFP product line to align with the current Improve the product portfolio of high-speed

DR8&2FR4 Sipho industry trend of increasing quantity of 1.6T optical module products improve our market

with Marvel and optical modules under the explosion of AI competitiveness on the 1.6T racetrack and take the

Xphor PIC computing power hence filling in the gap in Plan under market opportunities in the first year of increasing

1.6T 8-channel the layout of relevant product solutions; verification quantity of 1.6T optical modules in 2026 to

silicon photonics relying on the advantages of short lead time and sample acquire market shares; make use of the technology

solution for of Marvell 3nm DSP promptly respond to production advantages (low-power consumption and high

500m&2000m urgent orders from global cloud providers integration) of Marvell 3nm chips to enhance the

OSFP packaged and AI enterprises to break through the technology barriers of products and expand the

optical module delivery bottleneck in the industry supply profitability space.chain.Facing the requirements of next generation

data centers achieve breakthroughs in signal

integrity reduce power consumption and

reduce the latency for signal transfer. 1) Take the early opportunities for the market of

1.6T OSFP Perform signal restoration by DSP at the next generation data center interconnect and

DR8&2xFR4 LRO transmitting end and implement linear direct improve the technology barriers and shares in

1.6T 8-channel drive at the receiving end. Compared with ultra-high-speed optical modules. Enhance loyalty

silicon photonics the 1.6T FRO solution (DSP at both the Plan under of top cloud provider customers to drive the

solution for transmitting and receiving ends) reduce the assessment revenue from high-speed products for the next 2–3

500m&2000m power consumption by 30% and achieve years.

OSFP linear receive smaller latency at the receiving end. 2) Build silicon photonics integration capabilities

optical module Compared with the LPO solution (linear optimize power consumption and costs to meet the

direct drive at both the transmitting and requirements of high-density and low-power

receiving ends) reduce the requirements on consumption computing scenarios.signal integrity at switch ports and improve

port interchangeability and robustness.

33DSBJ Annual Report 2025

Description of major Purpose Progress Expected effect on the future development of theR&D project Company

1.6T AEC OSFP 1.6T AEC (Active Electrical Cable) ismainly used inside large-scale AI data Independently develop high-speed copper cable1.6T single-mode centers especially for interconnection Sample modules to enrich our module product lines. The3m–7m OSFP

packaged high-speed between racks having requirements of production

rapid AI development leads to the sharp increase in

copper cable module balancing transmission distances power

the demands of high-speed copper cable modules

consumption and costs. hence increasing our revenue.

800G QDD Facing the requirements of next generation Take the early opportunities for the market of next

DR8&2xFR4 Gen2 data centers reduce power consumption and generation data center interconnect and improve

800G EML solution improve product yield rates. Compared with Small-scale the technology barriers and shares in ultra-high-

500m&2000m QDD Gen1 reduce the power consumption by trial

packaged optical 20% and design a pattern that is more production

speed optical modules. Enhance loyalty of top

cloud provider customers to drive the revenue from

module suitable for the production line. high-speed products for the next 2–3 years.Facing the requirements of next generation

data centers develop high-performance

optical modules at the rate of 800Gbps based 1) In technology iteration take the early

on the single-wavelength 200G technology opportunities for the interconnect market of

with Gearbox so as to meet the generational switches of data centers and improve

800G QDD DR4++ requirements for interconnection between the technology barriers and shares in ultra high-

800G EML solution the current switches of the single- speed optical modules.

10km QDD wavelength 100G technology and the next Sampleproduction 2) Use independently developed EML topackaged optical generation switches of the single-wavelength demonstrate our R&D strength mass production

module 200G technology. Achieve breakthroughs in capabilities and complete and controllable supply

critical technologies in high-speed signal chain; optimize power consumption and costs to

integrity flip chip process thermal meet the requirements of high-density and low-

management power consumption control power consumption computing scenarios.etc. hence building first early mover

advantages for next generation products.

800G OSFP 2xFR4 Facing the requirements of next generation

BRCM DSP data centers develop OSFP silicon

800G silicon photonics optical modules with the rate of Under Enhance the comprehensive advantages of cost

photonics solution 800Gbps to achieve breakthroughs in critical effectiveness for products with same performance

2000m OSFP technologies in high-speed signal integrity

developmen and increase the winning shares in centralized

packaged optical thermal management power consumption

t purchase of mainstream equipment manufacturers.module control etc. hence promoting productiteration and upgrade.

800G AEC OSFP 800G AEC (Active Electrical Cable) ismainly used inside large-scale AI data Independently develop high-speed copper cable800G single-mode centers especially for interconnection Sample modules to enrich our module product lines. The7m OSFP packaged

high-speed copper between racks having requirements of

delivered to rapid AI development leads to the sharp increase in

balancing transmission distances power customers the demands of high-speed copper cable modulescable module consumption and costs. hence increasing our revenue.

400G Q112 SR4

Gen2 Optimize device selection and circuit design Enhance the comprehensive advantages of cost

400G multi-mode to reduce BOM costs so as to reduce Completed effectiveness for products with same performance

50m Q112 packaged module costs by 40% and improve the and increase the winning shares in centralized

optical module market competitiveness of products. purchase of mainstream equipment manufacturers.

400G QDD FR4 Facing the performance optimization

Gen3.5 Hermetic required for high-reliability 400G products Plan under Enhance the comprehensive advantages of cost

400G 2000m QDD on the telecommunication market optimize verification effectiveness for products with same performance

hermetic packaged device selection and circuit design to reduce and sample and increase the winning shares in centralized

optical module BOM costs. production purchase of mainstream equipment manufacturers.Facing the requirements of data centers

200G QSFP56 FR4 improve our product portfolio by developing

200G single-mode QSFP56 optical modules at the rate of 200 Under Enhance the comprehensive advantages of cost

2000m QSFP Gbps using DFB lasers hence making use of developmen effectiveness for products with same performance

packaged linear our advantages in vertical resource t and increase the winning shares in centralized

optical module integration and low costs to improve the purchase of mainstream equipment manufacturers.market competitiveness of products.

50G SFP56 LR/Bidi For the wireless access network 50G Small-scale

50G 10km coarse evolution node work with domestic and shipment of

wavelength division foreign wireless system manufacturers to coarse Maintain our leading position in the field of global

multiplexing and develop multi-wavelength optical modules wavelength wireless access products.

15km single-fiber featuring extended temperatures and division

34DSBJ Annual Report 2025

Description of major Purpose Progress Expected effect on the future development of theR&D project Company

bidirectional SFP56 industrial temperatures required by next multiplexin

packaged optical generation wireless network systems. g products

module while 15km

single-fiber

bidirectiona

l products

are at the

stage of

plan

verification

212Gbaud EML Achieve single-wavelength 400G transfer Design

chip development for 3.2T/6.4T optical modules. optimizatio

Enhance leading advantages in high-speed optical

n chips to take opportunities for the AI market.

212Gbaud EML Achieve single-wavelength 400G transfer Sample Enhance leading advantages in high-speed optical

chip development for 3.2T/6.4T optical modules. production chips to take opportunities for the AI market.Next generation high-speed optical chips

which can provide wider bandwidth and

106Gbaud thanks to increased signal amplitude reduce

differential EML the drive power overall power consumption Sample Enhance leading advantages in high-speed optical

chip development and crosstalk. D-EML will create more production chips to take opportunities for the AI market.competitive advantages for 800G 1.6T and

even 3.2T optical modules.The AI surge accelerates the demands and

106Gbaud

CWDM/LWDM Provide LWDM & CWDM high-speed EML

development progress of 800G and 1.6T optical

Sample modules. Our independently developed 106Gbps

EML chip optical chips for 800G and 1.6T opticalmodules. production EML chips can provide a policy layout featuringdevelopment better cost effectiveness and flexibility for optical

modules.Simulation analysis

and design method Optimize the design of CVL and reduce the

of CVL liner peeling trial and error cost of the process through Completed

The technology and market competitiveness of the

simulation. relevant products will be improved.process failure

Development and

application of

FCCL/CVL Provide customers with thinner FPC The technology and market competitiveness of the

materials for solutions. Completed relevant products will be improved.dynamic bending

and thinning

FPC dynamic

bending life Provide customers with solutions for the Completed The technology and market competitiveness of theimprovement reliability of dynamic bending FPC. relevant products will be improved.technology

Development mass

production and

application of ink Develop the roughening solution Completed The technology and market competitiveness of the

pre-middle independently to reduce costs. relevant products will be improved.roughening solution

25-micron/25-

micron line The project uses existing process equipment

development by to develop fine circuits by adjusting the Completed The technology and market competitiveness of the

subtractive layer process. relevant products will be improved.process

Development of

environmental Develop new nickel bath and nitric acid bath

friendly nickel bath agents to replace nitric acid hence reducing Completed The technology and market competitiveness of the

and nitric acid bath environmental pollution. relevant products will be improved.agents

Development of a

new aluminum Develop the key chemical solution Completed The technology and market competitiveness of the

etching solution independently to reduces costs. relevant products will be improved.Development of

flexible pressure Develop flexible pressure sensors to provide Completed The technology and market competitiveness of the

sensors customers with more solutions. relevant products will be improved.

35DSBJ Annual Report 2025

Description of major Purpose Progress Expected effect on the future development of theR&D project Company

Development of

fine-line patterning

technology for line Develop a fine-line patterning technology to

width and line achieve denser wiring hence providing In progress

The technology and market competitiveness of the

spacing of 20um or customers with more solutions.relevant products will be improved.below

Process

development for Achieve thinner flexible PCBs through

direct metallization direct metallization using magnetron In progress The technology and market competitiveness of the

using magnetron sputtering. relevant products will be improved.sputtering

Development of

rolling process for Develop rolling process for protective films The technology and market competitiveness of the

long-size protective to improve efficiency. In progress relevant products will be improved.films

Development of

intelligent optical Independently develop equipment for critical

inspection processes to master key and core equipment In progress

The technology and market competitiveness of the

and improve efficiency. relevant products will be improved.equipment

Development of Develop roll-to-roll lamination and rapid

roll-to-roll processes lamination processes to achieve roll-to-rollproduction of multi-layer board bonding Completed The technology and market competitiveness of thefor multi-layer hence breaking the bottleneck in roll-to-roll relevant products will be improved.boards manufacturing of multi-layer boards.Chip-embedded Improve system integration and improve the In progress The technology and market competitiveness of thecircuit board efficiency and reliability of the system. relevant products will be improved.Given the increasing chip sizes the BGA

evenness affects the stress release after chip

Study of BGA packaging so that the chip may be pulled

evenness crack after being packaged. It is necessary to In progress

The technology and market competitiveness of the

improve the BGA evenness of HLC boards relevant products will be improved.and the BGA evenness after simulated

reflow soldering.Study of alignment Insufficient verticality of stacked holes may

accuracy of stacked lead to reliability defects caused by Z axis In progress The technology and market competitiveness of the

laser-drilled holes expansion of the board during high-density relevant products will be improved.HDI.A leading AI customer requires the back

Research on back drill stub length of 0–4 mil for a preliminary

drill stub length research project. The current capability is 2– In progress The technology and market competitiveness of the

capability of 0–4 mil 6 mil in the industry. There is a technical relevant products will be improved.gap in this aspects and preliminary R&D is

required.At present multiple customers requested

Study of 0.5OZ preliminary research of inner layer

inner layer impedance +/-5%; we cannot achieve this In progress The technology and market competitiveness of the

impedance ±5% capability at present and therefore the relevant products will be improved.preliminary research is necessary.R&D of 40/40um

line width and

surface copper Break through the technology bottleneck of The technology and market competitiveness of the

thickness of products.In progress relevant products will be improved.

22+/4um

R&D of alignment

between the Cavity

edge to the bonding Break through the technology bottleneck of In progress The technology and market competitiveness of the

pad for optical products. relevant products will be improved.modules

R&D of 11-stage

inter-layer alignment Break through the technology bottleneck. In progress The technology and market competitiveness of the

100um for HDI relevant products will be improved.

R&D of thermal

reliability for 11- Break through the technology bottleneck. In progress The technology and market competitiveness of the

stage HDI relevant products will be improved.

36DSBJ Annual Report 2025

Description of major Purpose Progress Expected effect on the future development of theR&D project Company

Development of via

filling technology

for blind vias in Improve the process capabilities for multi- Completed The technology and market competitiveness of the

multi-layer adhesive layer flexible PCBs. relevant products will be improved.flexible PCBs

Development of

mass production

capacity for rigid-

flexible boards 16L Improve the layer misalignment processcapabilities for HLC rigid-flexible boards. Completed

The technology and market competitiveness of the

at layer relevant products will be improved.misalignment of

±0.1mm

Development of

low-sparkle touch Reduce the sparkle issue of AG glass In progress The technology and market competitiveness of the

screens through the AG design of surface covers. relevant products will be improved.The certification is mainly applicable to

OLED displays in high-end laptop

HDR TrueBlack computers and handheld devices to display

1000 R&D and vivid and lifelike images with better color In progress The technology and market competitiveness of the

certification accuracy and contrast reproduction. Passing relevant products will be improved.the certification can facilitate the marketing

of our copper Metalmesh hence improving

the market competitiveness.R&D of automotive Customized development of 10.25-inch

Under

display screen touch-integrated display screen to be used

verification The technology and market competitiveness of the

as automotive instrument display screen. by relevant products will be improved.customer

Development of Customized development of 15.6-inch

narrow-bezel narrow-bezel touch-integrated display Plan under The technology and market competitiveness of the

automotive displays screen to be used as automotive central assessment relevant products will be improved.control and rear display screens.Enhance the design (mechanical and

electrical) and assembly production Stage of

Dual-arm lifting capabilities for the humanoid robotics sample The technology and market competitiveness of the

robots industry and establish a stable and reliable optimizatio relevant products will be improved.supply chain for key components at the same n

time.Enhance the design (mechanical hardware

electrical and software) and assembly Stage of

Tracked humanoid production capabilities for the humanoid sample The technology and market competitiveness of the

robot robotics industry and establish a stable and optimizatio relevant products will be improved.reliable supply chain for key components at n

the same time.Smart rivet gun for Enhance the design (mechanical) assembly

Stage of

humanoid robots production and reverse engineering

sample The technology and market competitiveness of the

capabilities of end actuators. optimizatio relevant products will be improved.n

Enhance the design (mechanical and

electrical) and assembly production

Humanoid robots for capabilities for the humanoid robotics Sample The technology and market competitiveness of the

household services industry and establish a stable and reliable designing relevant products will be improved.supply chain for key components at the same

time.Liquid-cooled AI Improve the design capabilities of the liquid The technology and market competitiveness of the

server cooling industry. Completed relevant products will be improved.Innovative design of integrally brazed

Integrated module refrigerant-side components and water-side Develop markets for new products; accumulate

for vehicle-mounted insertion disc valves which enhances the Sample experience in product development; improve

thermal management integration and compact degree of integrated production product capabilities.module products.Particulars of R&D personnel

2025 2024 Y/Y % change

37DSBJ Annual Report 2025

Number of R&D personnel 5074 4619 9.85%

Ratio of R&D personnel to the total number of 12.93% 19.64% -6.71%

employees

Education background of R&D personnel

Undergraduate 2389 1908 25.21%

Master 298 120 148.33%

Doctor 28 4 600.00%

Age of R&D personnel

Below 30 1531 1375 11.35%

30-40215020743.66%

Particulars of R&D expenses

2025 2024 Y/Y % change

Amount of R&D expenses (RMB) 1431775054.82 1266812544.23 13.02%

Ratio of R&D expenses to operating revenue 3.57% 3.45% 0.12%

Amount of R&D expenses capitalized (RMB) 14548330.95

Ratio of capitalized R&D expenses to total R&D

1.02%

expenses

Reasons and impacts of major changes in the composition of the Company’s R&D personnel

□ Applicable□ N/A

Reasons for the significant change in the ratio of total R&D expenses to operating revenue compared with the previous year

□ Applicable□ N/A

Reasons for the significant change in the capitalization rate of R&D expenses and explanation of the reasonableness thereof

□ Applicable□ N/A

5. Cash flows

In RMB

Item 2025 2024 Y/Y % change

Cash provided by operating activities 42774909630.68 39078913419.97 9.46%

Cash used in operating activities 37467767883.69 34092894731.49 9.90%

Net cash flows from operating activities 5307141746.99 4986018688.48 6.44%

Cash provided by investing activities 2008754818.35 1465360913.36 37.08%

Cash used in investing activities 10291946655.20 5559047058.72 85.14%

Net cash flows from investing activities -8283191836.85 -4093686145.36 -102.34%

Cash provided by financing activities 14571684367.09 10305980684.26 41.39%

Cash used in financing activities 10822290356.20 11625348087.09 -6.91%

Net cash flows from financing activities 3749394010.89 -1319367402.83 384.18%

Net increase in cash and cash equivalents 761122243.78 -300886635.94 352.96%

Explanation about the main factors affecting the significant year-on-year changes in relevant data

□ Applicable □ N/A

1. The cash inflow from investing activities increased by 37.08% primarily due to the increase in the recovery of security deposits

for acquisition in the current period.

2. The cash outflow from investing activities increased by 85.14% primarily due to the strategic acquisition of Source Photonics

38DSBJ Annual Report 2025

and GMD Group during the reporting period and the active expansion of production capacity for optical modules (including

optical chips) and AI PCB products which increased capital investment.

3. The net cash outflow from investing activities increased by 102.34% primarily due to the significant increase in cash outflows

from investing activities.

4. The cash inflow from financing activities increased by 41.39% primarily due to the private placement completed during the

reporting period and relevant acquisition projects which increased M&A loans from banks.

5. The net cash flows from financing activities increased by 384.18% primarily due to the private placement completed during the

reporting period and relevant acquisition projects which increased M&A loans from banks.

6. The net increase in cash and cash equivalents increased by 352.96% primarily due to the stable increase in the cash flows from

operating activities and our active efforts for new business expansion which increased the financing scale and led to the net cash

increase that is obviously greater than the same period of the previous year.Reasons for the significant difference between the net cash flows from operating activities of the Company during the reporting

period and the net profit of the year

□ Applicable□ N/A

V. Analysis of Non-primary Business

□ Applicable□ N/A

VI. Analysis of Assets and Liabilities

1. Material changes in the components of assets

In RMB

December 31 2025 January 1 2025

% of total % of total Change % Reason for material changes

Amount Amount

assets assets

Cash and bank

7650283509.1012.70%7172331252.2915.59%-2.89%

balances

Accounts

9792745060.0616.25%7663458025.4916.65%-0.40%

receivable

Inventories 8928944182.01 14.82% 6152655607.85 13.37% 1.45%

Primarily due to the lease out

Investment

142555461.11 0.24% 781129.10 0.00% 0.24% of partial undeveloped land

properties

during the reporting period.Long-term

equity 126566432.55 0.21% 155008795.68 0.34% -0.13%

investment

Fixed assets 16586762231.15 27.53% 13595191232.40 29.55% -2.02%

Construction

2345985416.223.89%2575154318.355.60%-1.71%

in progress

Right-of-use

2209353814.613.67%1313776299.132.86%0.81%

assets

Primarily due to the

Short-term acquisition of Source

8011474049.0313.30%4810954130.6910.46%2.84%

borrowings Photonics and GMD Group

and the expansion of sales

39DSBJ Annual Report 2025

during the reporting period

which required more

operating funds.Primarily due to the advance

Contract payment for molds collected

474660658.170.79%122562435.140.27%0.52%

liabilities by GMD Group from

customers.Long-term

6375079464.5410.58%5289187891.3311.49%-0.91%

borrowings

Lease

1790064820.732.97%1351518837.182.94%0.03%

liabilities

Analysis of the high proportion of overseas assets

□ Applicable □ N/A

In hundred million in RMB

Whether it

Controls for involves

Assets Method of Mode of guaranteeing

Proportion of risk of

acquisition Amount Location operation the security of Income overseas assets to net material

assets assets impairment

loss

Its

Hong manufacturingHong Kong

Dongshan Established 275.00 Kong

R&D entity is

China and sales located in

10.00 49.48% No

Chinese

mainland

Its

Hong manufacturing

Multek Group Established 127.16 Kong R&D entity is

China and sales located in

3.66 20.65% No

Chinese

mainland

2. Assets and liabilities measured at fair value

□ Applicable □ N/A

In RMB

Gain or loss Aggregate

Item Opening on changes in changes in fair

Impairment loss Amount Amount sold

recognized in the acquired in the in the current Other Closingbalance fair value value recorded current period current period period changes balancein equity

Financial assets

1. Financial assets held for

trading (excluding derivative 15317.92 38000000.00 26500000.00 11515317.92

financial assets)

2. Derivative financial assets 14931966.03 13968379.70 15912162.83 32097635.00 11783827.55 65126316.01

3. Investment in other equity

instruments 63212376.92 61043000.00 656849.76 124912226.68

Subtotal of financial assets 78144342.95 13983697.62 15912162.83 131140635.00 38283827.55 656849.76 201553860.61

Financial liabilities 82922390.17 -48038657.49 -27169.37 22386994.25 10697620.39 46545937.17

Other changes: N/A

Is there a significant change in the measurement attributes for the Company’s main assets during the reporting period

□ Yes□ No

40DSBJ Annual Report 2025

3. Encumbrances on assets as of the end of the reporting period

Item Closing carrying value (RMB) Type of restriction Reason for restriction

Cash and bank balances 1545560882.95 Pledge Security deposit for notes etc.Accounts receivable 981561847.06 Pledge Factoring

Accounts receivable financing 73295416.52 Pledge Pledge of notes

Fixed assets 151552245.09 Mortgage Loan mortgage

Right-of-use assets 2209353814.61 Mortgage Finance lease

Total 4961324206.23

VII. Analysis of Investments

1. Overview

□ Applicable □ N/A

Amount of investment in the reporting Amount of investment in the previous

Y/Y % change

period (RMB) period (RMB)

7203263872.69569000000.001165.95%

2. Major equity investments acquired during the reporting period

□ Applicable□ N/A

3. Major non-equity investments that have not yet been completed in the current period

□ Applicable□ N/A

4. Investment in financial assets

(1) Investment in securities

□ Applicable□ N/A

We have not invested in any securities during the reporting period.

(2) Investment in derivatives

□ Applicable □ N/A

1) Investment in derivatives for hedging purposes during the reporting period

□ Applicable □ N/A

In RMB 0’000

% of net

Aggregate

Gain or Amount Amount assets at

Type of Initial changes in

Opening loss on acquired in sold in the Closing the end of

investment in investment fair value

balance changes in the current current balance the

derivatives amount recorded in

fair value period period reporting

equity

period

41DSBJ Annual Report 2025

Commodity

16561.5814342.25027.03056627.9856214.2519782.960.92%

futures

Total 16561.58 14342.2 5027.03 0 56627.98 56214.25 19782.96 0.92%

Hedge

accounting

policies and

principles

adopted for the

reporting period

and significant None

changes in such

policies and

principles

compared to the

previous

reporting period

Actual profit or

loss for the The amount on commodity futures transactions recorded in profit or loss was RMB 50.2703 million.reporting period

We conduct hedging transactions for the purpose of leveraging the hedging function of futures mitigating the

Effect of hedging effect of market price fluctuations of bulk commodities on our production and operating costs enhancing our

overall risk resistance capacity and improving our financial soundness.Source of funds

for investment in Self-owned funds

derivatives

Analysis of risks

associated with

the derivatives

held in the

current period

(including

without Refer to the Announcement of Commodity Futures Hedging Transactions disclosed by us for the relevant risk

limitation market analysis and controls.risk liquidity

risk credit risk

operational risk

and legal risk)

and related risk

control measures

Changes in the

market price or

fair value of the

derivatives held

in the current

period (in the

analysis of the We are mainly engaged in hedging transactions with mainstream products on major domestic futures markets. The

fair value of derivatives traded by us have a transparent and active market and their transaction prices and settlement prices can

derivatives the fully reflect their fair value.specific

approaches

assumptions and

parameters used

shall be

disclosed)

Litigations None

42DSBJ Annual Report 2025

involved (if

applicable)

Disclosure date

of the

announcement of

the board of

directors December 7 2024

approving the

investment in

derivatives (if

any)

Disclosure date

of the

announcement of

the general

meeting December 24 2024

approving the

investment in

derivatives (if

any)

2) Investment in derivatives for speculative purposes during the reporting period

□ Applicable□ N/A

The Company did not have any derivative investment for speculative purposes during the reporting period.VIII. Sale of Material Assets and Equities

1. Sale of material assets

□ Applicable□ N/A

No material asset has been sold during the reporting period.

2. Sale of material equities

□ Applicable□ N/A

IX. Analysis of Major Subsidiaries and Associates

□ Applicable □ N/A

Major subsidiaries and associates representing more than 10% of the net profit of the Company

In hundred million in RMB

Company Type of Total Net Operating Operating Net

Primary business Registered capital

name company assets assets revenue profit profit

Design R&D sale and after-

Hong Kong sale services in respect of

Subsidiary HKD 10000000 275.00 107.38 408.33 12.55 10.00

Dongshan electronic circuits; investment

holding

Design R&D sale and after-

USD

Multek Group Subsidiary sale services in respect of 127.16 44.80 62.21 4.23 3.66

218248360.27

electronic circuits; investment

43DSBJ Annual Report 2025

holding

Subsidiaries acquired or disposed of during the reporting period

□ Applicable □ N/A

Effect on overall production operation

Company name Method of acquisition or disposal

and results

No material effect on our operating

Source Photonics Acquisition

results in the current period

No material effect on our operating

GMD Group Acquisition

results in the current period

No material effect on our operating

DSBJ International Deregistration

results in the current period

No material effect on our operating

DSBJ Europe Holding Newly established

results in the current period

X. Structured Entities Controlled by the Company

□ Applicable□ N/A

XI. Prospects for Future Development of the Company

(I) Our development strategy

We insist on a development strategy with both “offensive and defensive characteristics”. On one hand we make continuous

efforts in our core businesses to constantly improve core device businesses including consumer electronics vehicles and other

key areas as our foundation so as to steadily consolidate and improve our competitive position in the industry and improve our

operation stability and resilience in business development. On the other hand we attentively take the strategic opportunities in therapid development of the AI industry by making great efforts in core racetracks focusing on key product fields like “opticalmodules (including optical chips) + AI PCB” by continuously enhancing investment in technology R&D and efforts for market

expansion so as to improve our core competitiveness in all aspects and develop DSBJ into a globally leading provider of

intelligent interconnection solutions hence promoting corporate development with better quality in a more sustainable manner.(II) Work plan for 2026

1. Consolidate conventional businesses as our foundation to achieve stable operation

We will make continuous efforts to improve and strengthen conventional advantageous businesses including FPC PCB

precision structural parts photoelectric display modules etc. constantly optimize our product portfolio and customer structure

and deepen long-term strategic cooperation with leading customers in the industry. By closely following the trend of the

innovative upgrade of consumer electronics and the development of electric and intelligent vehicles we can rapidly respond to the

fast iteration pace of terminal products to greatly improve the proportion of high-end and high added-value products continuously

improve delivery capabilities and further consolidate and improve our leading advantages and market shares in the industry.Relying on the businesses above we can generate continuous and stable operating cash flow to effectively enhance our overall

anti-risk abilities hence providing a solid and reliable foundation to support and guarantee long-lasting and stable operation

forward-looking layout of emerging strategic businesses and high-quality development in the long run.

2. Make breakthroughs in the AI hardware racetrack to accelerate the release of new high-end production capacity

We will make full use of Source Photonics’ advantages in vertical industry integration to ensure the stable release of new

production capacities of optical chips as planned and improve chip yields and product performance through continuous

technology breakthroughs. On the basis of our core competitiveness in optical chips and the high market demands this will drive

44DSBJ Annual Report 2025

the rapid expansion of the optical module business to continuously improve the bulk delivery capabilities and market shares of

800G and 1.6T high-speed optical modules. We will make full efforts to promote the construction of the new AI PCB bases and

smoothly put it into operation so as to improve the supply scale and supporting capabilities of HLC PCBs HDI PCBs and other

high-end PCB products for AI servers hence accurately meeting the core demands under the rapid growth of AI computing powerthroughout the world. We will continuously enhance the synergy advantages of the “optical modules (including optical chips) + AIPCB” product matrix hence building an integrated and comprehensive competition barrier in the field of AI data centers on the

basis of leading technologies sufficient production capacities stable quality and prompt delivery.

3. Deepen the global layout of production capacities and improve local supply capabilities

We will continuously improve our global manufacturing system and supply chain network optimize the production capacity

structure and resource allocation among overseas and domestic production bases in a scientific and coordinated manner and

promote local production nearby supporting facilities and agile delivery focusing on core markets and key customers so as to

further shorten the lead time and speed up response. Thanks to the diversified and decentralized layout of production capacities

we can effectively reduce potential risks from geopolitical conflicts international trade barriers and regional supply chain

fluctuation and enhance the stability and anti-risk ability of our supply chain in all aspects hence providing a stable and reliable

production capacity foundation for continuous and stable business expansion of the Company.

4. Strengthen technological innovation and R&D to build core barriers

We will continuously increase R&D investment in key core fields like high-speed optical chips optical modules and AI

PCBs make firm efforts in the main racetrack of AI hardware take technology iteration and process upgrade as core engines and

rely on our advantages to continuously consolidate and improve our core competitiveness and position in the global industry chain.We can continuously consolidate our technology barriers thanks to Source Photonics’ whole-process R&D and process system

covering InP substrates epitaxial materials and optical chips. By now we have achieved large-scale mass production for CW

laser; in addition we are making stable progress in the R&D of single-wavelength 400G EML high-speed optical chips which will

provide a solid foundation for the Company to master the next generation of technologies in the high-end optical communication

field. Multek operating in the PCB industry for 48 years has the professional capabilities of manufacturing ultra-HLC PCBs with

78 or more layers and 7-stage thick HDI PCBs; focusing on the racetrack of AI servers we can deliver high-quality PCB products

in large scale to continuously meet high-end computing demands.

5. Improve governance and internal control to continuously enhance the operation and management quality

We will continuously promote systematic corporate governance and data-based governance constantly optimize the corporate

governance structure actively explore and make prompt adjustment to achieve a management pattern in line with the global layout

continuously improve the group’s coordination management and control effectiveness financial risk prevention and control

abilities and the level of digital and intelligent operation and improve and iterate the internal control management system. We

will strictly implement a whole-process risk management and control system ensure the highly effective controllable and orderly

implementation of regulations on significant operating affairs including production capacity expansion acquisition and integration

overseas operation etc. so as to build a solid security defense for operation and provide a strong system support and governance

guarantee for the high-quality and sustainable development of the Company.

6. Deepen the A+H capital layout to empower the further upgrade of the international layout

Relying on our solid early layout we have made preliminary achievements in overseas market expansion global production

capacity building and cross-border industry chain integration. On this basis we will take stable steps for the A+H global capital

layout to continuously optimize the capital structure establish a channel for overseas financing and build an overseas incentive

platform hence building an effective and flexible international capital platform. By taking advantage of the A+H dual platforms

45DSBJ Annual Report 2025

we can further integrate global capital and industry resources to provide the fund guarantee and capital support for emerging

business expansion global production capacity optimization and implementation of overseas strategies hence improving our core

competitiveness in all aspects.(III) Main risk factors affecting the Company and risk response

1. Risk of concentration of customers

We have good customer resources. Our major customers are well-known domestic and international companies in the

relevant industries that are of sound credit and have established stable cooperation relationships with us. However our top 5

customers constitute a large proportion of our total sales revenue which may further increase in the future. Any material adverse

change in the business situation of such major customers could have an adverse effect on our business.We will pay close attention to the industry development dynamics of key customers and customer credit and make active

measures for new customer development hence reducing the adverse effects of high concentration of customers on the Company.

2. Risks brought by rapid technology upgrading of the industry

Our business covers electronic circuits optical modules (optical chips) precision components photoelectric display modules

and other technology-intensive industries and our products are widely applied in AI data centers consumer electronics vehicles

communication equipment and other fields all of which are characterized by rapid technology upgrading. If our R&D and

manufacturing capabilities fail to keep pace with the rapid technology upgrading of downstream products our products and

technologies may become obsolete.We will closely follow the trend of cutting-edge technologies in relevant industries and maintain in-depth communication

with key customers to ensure advanced technologies for our products. Meanwhile we will keep close cooperation with influential

universities and research institutions in the industry to maintain our advantages in technologies and processes.

3. Risk of changes in the global trade environment

Our major customers include some well-known international companies and our export sales have grown steadily for years.Though China has established good economic and trade cooperation relationships with major countries in the world the

increasingly fierce regional frictions in recent years may cause uncertainties in the applicable trade policies which could affect our

international trade.Facing the complex and volatile international trade conditions we will pay close attention to changes in geopolitical trade

policies continuously optimize the global industry layout consolidate capabilities for local operation and support deepen normal

communication with customers strengthen study on relevant international trade rules and compliance management and take

systematic measures to protect against operating risks from changes in the external environment.

4. Risk of market exploitation

Our business covers the R&D production and sale of electronic circuits optical modules (optical chips) precision

components and photoelectric display modules; our products are widely applied in consumer electronics vehicles data centers

AI computing infrastructure and other fields; and our customers are mostly leading enterprises in the industry. Our industry has

the characteristics of fast technology iteration short product life cycle and intense market competition. If we cannot closely

follow the technology development trend of the industry cannot make sufficient investment in R&D cannot promptly meet the

constantly improving product and technical requirements of existing core customers and downstream industries or under the

impact of strict qualifications of downstream industry suppliers and long verification period we cannot promptly develop high-

quality core customers and smoothly enter their supply chain system we may experience insufficient orders and decreasing market

shares resulting in adverse effects on the sale of our products operating revenue profitability and operating performance.

46DSBJ Annual Report 2025

We will continuously increase investment in R&D and strengthen technological innovation and product iteration hence

continuously improving our core competitiveness. We will take active measures to build a reserve mechanism of multiple

customers optimize our customer structure and build a diversified customer base. We will take early measures intended for the

qualification system of target customers and build a dedicated working team to effectively promote qualification evaluation and

admission procedures. Meanwhile we will make continuous efforts to enhance whole-process quality management and control

and guarantee production capacity and improve the comprehensive delivery capabilities in all aspects so as to provide a solid

support for the Company to promote stable market expansion and achieve sustainable operation.

5. Environmental risk

The production process of our products involves critical steps like epitaxial growth etching passivation photolithography

development cleaning and electroplating which generates wastewater exhaust gases solid waste and various toxic and

hazardous substances. Therefore we are subject to high management and control requirements for environmental protection.Despite our correspondingly established management measures for environmental protection they cannot fully eliminate the risks

of environment accidents caused by management defects equipment failures force majeure or other factors. In the event of a

pollution accident or violation of relevant environmental protection laws and regulations we may face punishment be required to

make rectification and suffer reputation damages which may cause adverse effects on our production and operation. In addition

given the continuous implementation of green and low-carbon development throughout China and stricter supervision over

environmental protection if the environmental protection standard is further enhanced in the future we need to continuously

increase investment in environmental protection and strengthen transformation which may correspondingly increase the operating

costs of environmental protection hence affecting our operating performance.We have set “building of an environment-friendly enterprise” as a key goal of our sustainable development strategy actively

implemented the requirements of relevant latest environmental protection laws and regulations improved the environmental

management system enhanced training and employees’ awareness taken control measures at source and implemented the

requirements related to environmental safety in all of our key business activities to reduce the environmental risks.

6. Foreign exchange risk

Export sales constitute a large proportion of our total sales revenue. Because our day-to-day operation involves transactions in

USD and other foreign currencies and our consolidated accounts are presented in RMB the changes in the exchange rate between

RMB and USD may cause foreign exchange risk to our future operations.We will keep a close watch on the changes in the relevant foreign exchange rates strive to control the exposure to foreign

exchange risk at a reasonable level and hedge or otherwise reduce exposure to such risk.XII. Investigation Research Communication Interview and Other Activities during the

Reporting Period

□ Applicable □ N/A

Main topics of

Particulars of the

Method of Type of discussion and

Date Place Guests investigation and research

communication guests information

activity available at

provided

Institutio 275 investors Interpretation of

Communication

April 25 2025 Online nal including Guosheng the annual report www.cninfo.com.cn

by telephone

investors Securities etc.Communication 141 investors Interpretation of

April 30 2025 Online Others www.cninfo.com.cn

by telephone including Guosheng the first quarter

47DSBJ Annual Report 2025

Securities report etc.Meeting

Institutio Over 10 investors

room of On-site FPC business

July 1 2025 nal including GF www.cninfo.com.cn

the investigation etc.investors Securities

Company

Institutio 298 investors Interpretation of

Communication

August 27 2025 Online nal including Huatai the semi-annual www.cninfo.com.cn

by telephone

investors Securities report etc.Communication Interpretation of

August 29 2025 Online through the Others Investors the semi-annual www.cninfo.com.cn

online platform report etc.

176 investors

Institutio Optical

Changzho On-site including New

September 16 2025 nal communication www.cninfo.com.cn

u Jiangsu investigation China Asset

investors business etc.Management

Institutio 392 investors Interpretation of

Communication

October 22 2025 Online nal including CITIC the third quarter www.cninfo.com.cn

by telephone

investors Securities report etc.XIII. Formulation and Implementation of Market Value Management System and

Valuation Improvement Plan

Whether the Company has formulated a market value management system

□ Yes □ No

Whether the Company has disclosed a valuation improvement plan

□ Yes□ No

For details refer to the Market Value Management System disclosed on www.cninfo.com.cn.XIV. Implementation of the Action Plan to Improve the Quality and Returns

Whether the Company has disclosed its action plan announcement to improve the quality and returns

□ Yes□ No

48DSBJ Annual Report 2025

Section IV Corporate Governance Environment and Society

I. Overview of Corporate Governance

During the reporting period we have continuously improved our corporate governance structure operated in compliance with

the regulations and enhanced information disclosure in strict accordance with the Company Law of the People’s Republic of

China the Securities Law of the People’s Republic of China the Code of Corporate Governance for Listed Companies the Rules

Governing the Listing of Shares on the Shenzhen Stock Exchange and other applicable laws and regulations. We have established a

corporate governance structure that sets forth well-defined powers and responsibilities and mutual restraint mechanisms and

operates in a coordinated manner. Our general meeting and Board of Directors duly performed their duties and exercised their

functions operated in compliance with the regulations and seriously protected the legitimate rights and interests of the investors

and the Company.Is there any significant difference between the actual circumstance of corporate governance of the Company and the applicable

laws administrative regulations and the provisions of the CSRC regarding corporate governance of the listed companies

□ Yes□ No

There isn’t any significant difference between the actual circumstance of our corporate governance and the applicable laws

administrative regulations and the provisions of the CSRC regarding corporate governance of the listed companies.II. The Company’s Independence of its Controlling Shareholders and Actual Controllers in

Assets Personnel Finance Organization and Business

We are independent of our controlling shareholders in business personnel assets organization and finance and have our

own independent and complete business and are independent in management.

1. Independence in business operation: We are independent of our shareholders and other affiliates in business operation

have complete production R&D management procurement and sales systems and are able to do business independently on the

market.

2. Independence in personnel: We have a sound corporate governance structure in place and our directors and senior

executives have been appointed in strict accordance with the Company Law of the People’s Republic of China and the AOA and

do not hold any concurrent post in contravention of the applicable laws and regulations. We are independent of our shareholders in

personnel and payroll management and all of our employees receive their salaries from us. We have developed stringent

employment performance appraisal promotion and other labor management policies and entered into a Labor Contract with each

employee. We are fully independent in labor personnel and payroll management.

3. Independence in assets: We have a clear property right relationship with our controlling shareholders own or have the right

to use the premises and land necessary for our production and operating activities and have complete auxiliary production systems

and supporting facilities. None of our controlling shareholders or the business entities controlled by them has occupied any of our

funds assets or other resources.

4. Independence in organization: We have established a sound corporate governance structure in accordance with the

requirements of the Company Law of the People’s Republic of China and the AOA and our general meeting and Board of

Directors exercise their respective functions in strict accordance with applicable laws and regulations. We have set up internal

bodies suitable for our development defined their respective functions and developed corresponding internal management and

control systems. All of our functional departments operate independently free from any interference by any shareholders other

departments entities or individuals and do not engage in any mixed operation or share office space with other departments.

49DSBJ Annual Report 2025

5. Independence in finance: We have an independent finance department and full-time financial personnel established a

sound accounting system and financial management and decision-making policies and implemented strict financial supervision

and administration. We open independent bank accounts and control our funds and assets independently free from any

interference by our shareholders. We are an independent taxpayer pay taxes independently according to law and do not mix our

tax payment with any shareholder.III. Horizontal Competition

□ Applicable□ N/A

IV. Directors and Senior Executives

1. Particulars

No. of Cause of

Beginning End additional increase or

Opening Closing

date of the date of shares decrease in

Name Sex Age Title Status balance of balance of

term of the term acquired in the number

shares held shares held

office of office the current of shares

period held

Private

YUAN 2026-6-

Male 47 Chairman Active 2023-6-6 202226196 100555058 302781254 placement

Yonggang 5

of shares

Director & Private

YUAN 2026-6-

Male 49 General Active 2023-6-6 222388153 25138764 247526917 placement

Yongfeng 5

Manager of shares

ZHAO 2026-6-

Male 63 Vice Chairman Active 2023-6-6

Xiutian 5

Director &

SHAN 2026-6-

Male 50 Executive Active 2023-6-6 553700 553700

Jianbin 5

President

Director

Senior Vice 2026-6-

WANG Xu Male 44 Active 2023-6-6 560000 560000

President & 5

CFO

Director

Deputy

MAO General 2026-6-

Female 46 Active 2023-6-6 391600 391600

Xiaoyan Manager & 5

Board

Secretary

Employee

2026-6-

MA Liqiang Male 45 representative Active 2025-11-3 3000 3000

5

director

WANG Independent 2026-6-

Male 63 Active 2023-6-6

Zhangzhong director 5

SONG Independent 2026-6-

Male 62 Active 2023-6-6

Liguo director 5

GAO Independent 2026-6-

Male 58 Active 2023-6-6

Yongru director 5

50DSBJ Annual Report 2025

XU Independent 2026-6-

Male 45 Active 2025-11-3

Weidong director 5

Total -- -- -- -- -- -- 426122649 125693822 551816471 --

Whether any director or senior executive left office during the reporting period

□ Yes□ No

Changes in directors and senior executives

□ Applicable □ N/A

Name Position Type Date

Employee representative

MA Liqiang Elected 2025-11-3

director

XU Weidong Independent director Elected 2025-11-3

2. Profile

Professional background main work experience and main duties of our current directors and senior executives:

Mr. YUAN Yonggang: Hong Kong permanent resident having permanent residency in Singapore bachelor’s degree one of the

controlling shareholders and actual controllers of the Company. He has served as the Director of the Marketing Department

Deputy Manager and Vice Chairman of the Company since October 1998 and is now Chairman of the Company Vice Chairman

of the Jiangsu General Chamber of Commerce Vice Chairman of the Suzhou Association of Industry and Commerce and

Chairman of Suzhou Chamber of International Cooperation for Private Economy.Mr. YUAN Yongfeng: PRC citizen bachelor’s degree one of the controlling shareholders and actual controllers of the Company.He has served as the Director of the Manufacturing Department and Supervisor of the Company since October 1998 and is now

director and General Manager of the Company member of the 5th CPPCC Wuzhong District Committee of Suzhou Vice

Chairman of the Suzhou Wuzhong District Association of Industry and Commerce and Chairman of Suzhou Dongshan Chamber

of Commerce.Mr. ZHAO Xiutian: US citizen postgraduate. He has served in Feichuang Hughes Network Systems MCE Celiant and Andrew

and is now Vice Chairman of the Company.Mr. SHAN Jianbin: PRC citizen bachelor’s degree. He has served in Mektec Manufacturing Corporation (Zhuhai) Ltd. and is

now director and Executive President of the Company and Supervisor General of the China Printed Circuit Association.Mr. WANG Xu: PRC citizen having permanent residency in Singapore postgraduate certified public accountant (non-

practitioner). He has served in Kunshan Fengrui United Accounting Firm and Suzhou Good-ark Electronics Co. Ltd. and is now

director Senior Vice President and CFO of the Company part-time tutor for postgraduates in accounting at the Dongwu Business

School of Soochow University part-time tutor for postgraduates in accounting and audit at the School of Business of Nanjing

University of Information Science & Technology and part-time tutor for postgraduates in accounting at the School of Business of

Jiangsu Normal University.

51DSBJ Annual Report 2025

Ms. MAO Xiaoyan: PRC citizen postgraduate and economist. She has served in Suzhou Huacheng Group Company Limited and

Jiangsu Wuzhong Pharmaceutical Development Co. Ltd. and is now director Deputy General Manager and Board Secretary of

the Company.Mr. MA Liqiang: PRC citizen bachelor’s degree. He has served in Suzhou Dayin Electronic Telecommunications Equipment Co.Ltd. Suzhou Jinhuasheng Paper Co. Ltd. and Dongshan Optronics (Suzhou) Co. Ltd. and is now the employee representative

director of the Company and the Chief Operating Officer and President of China Region of Multek.Mr. WANG Zhangzhong: PRC citizen postgraduate. He has served in the School of Materials Science and Engineering of

Nanjing Institute of Technology as a teacher office director secretary of the Party committee chief of the division of science and

technology dean professor and Director of the China Heat Treatment Association since August 1983 and is now independent

director of the Company Chairman of the Special Metallurgy and Metal Forming Committee of Jiangsu Metal Society professor

of the Institute of New Material Technology of Nanjing Institute of Technology independent director of Zhangjiagang Haiguo

New Energy Equipment Co. Ltd. independent director of Suzhou Xianglou New Material Co. Ltd. Chairman of the Executive

Council of the Industrial Furnace Branch of Jiangsu Mechanical Engineering Society and Vice Chairman of the New Metal

Materials Branch of Jiangsu Metallurgical Industry Association.Mr. SONG Liguo: Hong Kong permanent resident holding a doctoral degree. He has served in CITIC Securities Tianjin Business

Department the Tianjin Equity Exchange Anhui Antai Law Firm China Baoan Group Hong Kong Hengfeng International

Investment Limited CHAN & Co. ARTHUR K.H. (Hong Kong) Denton Wilde Sapte (Hong Kong) and Jones Day (Hong Kong)

and is now independent director of the Company special counsel of Georgiou Partnership LLP visiting associate professor of the

Law School of Anhui University and arbitrator of the China International Economic and Trade Arbitration Commission the

Arbitration Center Across the Straits the Xiamen Arbitration Commission and the Wuhu Arbitration Commission.Mr. GAO Yongru: PRC citizen holding a doctoral degree senior accountant. He has served in Panda Electronics Group Jiangsu

Jinling Accounting Firm the Nanjing Municipal Bureau of Labor Huatai Securities Co. Ltd. Nanjing Transportation Holding Co.Ltd. Yincheng Properties Group Co. Ltd. Jinling Resort Nanjing Co. Ltd. Shenwu Energy Saving Co. Ltd. Hefei Genius

Advanced Material Co. Ltd. Guangzhou Haozhi Industrial Co. Ltd. Jiangsu Limin Paper Packaging Co. Ltd. Nanjing Borun

Intelligent Technology Co. Ltd. Nanjing Borun Neuromorphic Intelligent Technology Co. Ltd. Jiangsu Xinruide System

Integration Engineering Co. Ltd. Yongtuo Certified Public Accountants LLP Jiangsu Office and Jiangsu Riyue Accounting Firm

Co. Ltd. and is now independent director of the Company independent director of Jiangsu Sunlant Bioengineering Co. Ltd.independent director of Jiangsu Binhai Rural Commercial Bank Co. Ltd. partner of Nanjing Rongsheng Accounting Firm part-

time tutor for postgraduates in accounting at Nanjing University of Information Science & Technology.Mr. XU Weidong: PRC citizen holding a doctoral degree. He is now independent director of the Company associate professor

and doctoral advisor at the School of Management of Zhejiang University Qiu Shi Outstanding Young Scholar of Zhejiang

University and independent director of Zhejiang Jiemei Electronic Technology Co. Ltd.Whether the controlling shareholders and actual controllers also act as the chairman and general manager of the listed company

□ Applicable □ N/A

Mr. YUAN Yonggang and Mr. YUAN Yongfeng controlling shareholders and actual controllers of the Company act as the

Chairman and General Manager of the Company respectively. This is a reasonable arrangement made with reference to the

development stage and actual requirements for operation and management of the Company which helps to improve the efficiency

52DSBJ Annual Report 2025

in operation decision-making ensure effective implementation of the development strategy and continuously maintain stable

operation and management. This post arrangement is reasonable.Positions held in shareholders

□ Applicable□ N/A

Positions held in other entities

□ Applicable □ N/A

Name Entity Position

YUAN

Suzhou Dongyang Investment Co. Ltd. Supervisor

Yonggang

YUAN Shanghai Corkuna New Material Technologies Co.Chairman

Yonggang Ltd.YUAN

Jingbaiyue Investment Development (Suzhou) Co. Ltd. Managing Director

Yonggang

YUAN

Suzhou Dongding Tea Shop Co. Ltd. Supervisor

Yonggang

YUAN Shanghai Xinhuarui Semiconductor Technology Co.Director

Yonggang Ltd.YUAN

Jiangsu Xinhuarui Semiconductor Technology Co. Ltd. Director

Yonggang

YUAN

Ningbo Qixiang Information Technology Co. Ltd. Director

Yonggang

YUAN

Brave Pioneer International Limited Managing Director

Yonggang

YUAN

Hong Kong Dongshan Investment Holdings Limited Managing Director

Yonggang

YUAN

Anhui Landun Photoelectron Co. Ltd. Director

Yonggang

YUAN

Fujian Nanping Nanfu Battery Co. Ltd. Director

Yonggang

YUAN

Jiangsu General Chamber of Commerce Vice Chairman

Yonggang

YUAN

Suzhou Association of Industry and Commerce Vice Chairman

Yonggang

YUAN Suzhou Chamber of International Cooperation for

Chairman

Yonggang Private Economy

YUAN Yongfeng Suzhou Dongyang Investment Co. Ltd. Managing Director

YUAN Yongfeng CPPCC Wuzhong District Committee of Suzhou Member

Suzhou Wuzhong District Association of Industry and

YUAN Yongfeng Vice Chairman

Commerce

YUAN Yongfeng Suzhou Dongshan Chamber of Commerce Chairman

Suzhou Langsheng Communication Technology Co.ZHAO Xiutian Director

Ltd.SHAN Jianbin China Printed Circuit Association Supervisor General

WANG Xu Dongwu Business School of Soochow University Part-time tutor for postgraduates in accounting

School of Business of Nanjing University of Part-time tutor for postgraduates in accounting and

WANG Xu

Information Science & Technology audit

WANG Xu School of Business of Jiangsu Normal University Part-time tutor for postgraduates in accounting

WANG Special Metallurgy and Metal Forming Committee of

Chairman

Zhangzhong Jiangsu Metal Society

WANG School of Materials Science and Engineering of

Professor

Zhangzhong Nanjing Institute of Technology

WANG Industrial Furnace Branch of Jiangsu Mechanical

Chairman of the Executive Council

Zhangzhong Engineering Society

53DSBJ Annual Report 2025

Name Entity Position

WANG New Metal Materials Branch of Jiangsu Metallurgical

Vice Chairman

Zhangzhong Industry Association

WANG

Zhangjiagang Haiguo New Energy Equipment Co. Ltd. Independent director

Zhangzhong

WANG

Suzhou Xianglou New Material Co. Ltd. Independent director

Zhangzhong

SONG Liguo Georgiou Partnership LLP Special counsel

SONG Liguo Law School of Anhui University Visiting associate professor

China International Economic and Trade Arbitration

SONG Liguo Arbitrator

Commission

SONG Liguo Arbitration Center Across the Straits Arbitrator

SONG Liguo Xiamen Arbitration Commission Arbitrator

SONG Liguo Wuhu Arbitration Commission Arbitrator

GAO Yongru Jiangsu Sunlant Bioengineering Co. Ltd. Independent director

GAO Yongru Jiangsu Binhai Rural Commercial Bank Co. Ltd. Independent director

GAO Yongru Nanjing Rongsheng Accounting Firm Partner

Nanjing University of Information Science &

GAO Yongru Part-time tutor for postgraduates in accounting

Technology

XU Weidong School of Management of Zhejiang University Associate Professor

XU Weidong Zhejiang Jiemei Electronic Technology Co. Ltd. Independent director

Punishments imposed by the securities regulatory authorities in the past three years on the directors and senior executives of the

Company currently in office or leaving office during the reporting period

□ Applicable□ N/A

3. Remunerations of directors and senior executives

Decision-making process criteria for determination and actual amount in respect of remunerations of directors and senior

executives

The remunerations of our directors and senior executives are determined in accordance with the provisions of the AOA as follows:

the amount and terms of payment of remuneration of the members of the Board of Directors are determined by the general meeting;

the amount and terms of payment of remuneration of the senior executives are determined by the Board of Directors; the

remunerations of the directors and senior executives are determined based on their respective job responsibilities and achievement

of annual performance indicators for those holding key operational positions concurrently or fulfillment of job responsibilities and

annual tasks for those holding key managerial positions concurrently. The remunerations paid by us to our directors and senior

executives conform to our remuneration policies and the fulfillment of their job responsibilities.Remunerations of directors and senior executives paid in the current period

In RMB 0’000

Whether or not

Total remuneration receiving

received from the remunerations

Name Sex Age Title Status

Company (inclusive of from any

tax) affiliate of the

Company

YUAN

Male 47 Chairman Active 344.27 No

Yonggang

YUAN

Male 49 Director & General Manager Active 344.27 No

Yongfeng

ZHAO

Male 63 Vice Chairman Active 443.70 No

Xiutian

54DSBJ Annual Report 2025

SHAN

Male 50 Director & Executive President Active 412.67 No

Jianbin

Director Senior Vice President &

WANG Xu Male 44 Active 208.86 No

CFO

MAO Director Deputy General

Female 46 Active 162.90 No

Xiaoyan Manager & Board Secretary

MA Liqiang Male 45 Employee representative director Active 260.84 No

WANG

Male 63 Independent director Active 12.00 No

Zhangzhong

SONG

Male 62 Independent director Active 12.00 No

Liguo

GAO

Male 58 Independent director Active 12.00 No

Yongru

XU

Male 45 Independent director Active 2.00 No

Weidong

Total -- -- -- -- 2215.51 --

The remunerations of directors and senior executives

are determined in accordance with the Company’s

Basis for evaluation of the remunerations actually acquired by all regulations remuneration system and performance

directors and senior executives at the end of the reporting period evaluation system; the remunerations of independent

directors are determined in accordance with the

standard of allowances for independent directors.Completion of evaluation of the remunerations actually acquired by all The directors and senior executives have completed the

directors and senior executives at the end of the reporting period annual performance evaluation for 2025.Deferred payment arrangement for the remunerations actually acquired

N/A

by all directors and senior executives at the end of the reporting period

Termination of payment and refund claim for the remunerations

actually acquired by all directors and senior executives at the end of the N/A

reporting period

V. Performance of Duties by the Directors during the Reporting Period

1. Attendance of the directors at meetings of the Board of Directors and general meetings

Attendance of the directors at meetings of the Board of Directors and general meetings

No. of board No. of board Whether or not

meetings No. of board meetings No. of board having been No. of

No. of board

required to meetings present by meetings absent from general

Director meetings

attend during present in means of present by two meetings

absent from

the reporting person communicati proxy consecutive attended

period on equipment board meetings

YUAN

14 0 14 No 5

Yonggang

YUAN

14 0 14 No 5

Yongfeng

ZHAO

14 0 14 No 5

Xiutian

SHAN

14 0 14 No 5

Jianbin

WANG Xu 14 0 14 No 5

MAO

14 0 14 No 5

Xiaoyan

55DSBJ Annual Report 2025

Attendance of the directors at meetings of the Board of Directors and general meetings

No. of board No. of board Whether or not

meetings No. of board meetings No. of board having been No. of

No. of board

required to meetings present by meetings absent from general

Director meetings

attend during present in means of present by two meetings

absent from

the reporting person communicati proxy consecutive attended

period on equipment board meetings

MA Liqiang 2 0 2 No 2

WANG

14 0 14 No 5

Zhangzhong

SONG Liguo 14 0 14 No 5

GAO Yongru 14 0 14 No 5

XU Weidong 2 0 2 No 2

2. Objections raised by the directors regarding matters of the Company

Whether any director has raised any objection regarding matters of the Company

□ Yes□ No

No director has raised any objection regarding matters of the Company during the reporting period.

3. Other information regarding the performance of duties by the directors

Whether the suggestions put forward by the directors have been adopted by the Company

□ Yes □ No

Explanation of the adoption or rejection by the Company of the suggestions put forward by the directors

During the reporting period our directors performed their duties diligently in prudently considering the Company’s matters in

operation management and significant decision-making and raised no objection to relevant matters.VI. Activities of the Committees of the Board of Directors during the Reporting Period

No. of Important

Date of Performance of Objections

Committee Members meetings Subject opinions and

meeting other duties (if any)

held suggestions

Considered the

Proposal for

Provision for

Impairment for 2024 The Audit

the Annual Report Committee has

2024 and Summary The relevant actively

GAO of the Report the proposals communicated

Yongru Annual Financial were approved with the auditor

Audit WANG April 22 Report 2024 the and submitted of our annual

5

Committee Zhangzhong 2025 2024 Profit to the Board report to

and YUAN Distribution of Directors effectively

Yonggang Proposal the for supervise the

Proposal for Re- consideration. conduct of the

engagement of the annual audit of

Auditor for 2025 the the Company.

2024 Self-assessment

Report on Internal

Controls the 2024

56DSBJ Annual Report 2025

No. of Important

Date of Performance of Objections

Committee Members meetings Subject opinions and

meeting other duties (if any)

held suggestions

Special Report on the

Deposit and Use of

Offering Proceeds

the Proposal

Regarding

Application for

Facilities from Banks

and Other Financial

Institutions in 2025

the Proposal

Regarding Changes

in Accounting

Policies and the

Report of the Audit

Committee under the

Board of Directors

on the Performance

Assessment of the

Accounting Firm and

Exercise of

Supervision Duties in

2024

The relevant

proposals

were approved

April 29 Considered the First and submitted

2025 Quarter Report 2025 to the Board

of Directors

for

consideration.Considered the Semi- The relevant

annual Report 2025 proposals

and Summary of the were approved

August Report and the and submitted

22 2025 Special Report on the to the Board

Deposit and Use of of Directors

Offering Proceeds in for

the First Half of 2025 consideration.Considered the

Proposal for

Distribution of

Accumulated Profits

Prior to the Issuance The relevant

of H Shares by the proposals

Company the were approved

October Proposal Regarding and submitted

14 2025 the Report on the to the Board

Application of the of Directors

Previous Offering for

Proceeds and the consideration.Proposal for

Engagement of the

Auditor for Issuance

and Listing of H

57DSBJ Annual Report 2025

No. of Important

Date of Performance of Objections

Committee Members meetings Subject opinions and

meeting other duties (if any)

held suggestions

Shares by the

Company

The relevant

proposals

were approved

October Considered the Third and submitted

21 2025 Quarter Report 2025 to the Board

of Directors

for

consideration.Considered the

Proposal Regarding

the Estimation of the

Amount of External

Guarantees in 2026

the Proposal

Regarding

Application for

Facilities from Banks

and Other Financial

GAO

Institutions in 2026 The relevant

Yongru

the Proposal proposals

WANG

Regarding were approved

Zhangzhong

Audit December Commodity Futures and submitted

XUWeidong 1

Committee 12 2025 Hedging to the Board

YUAN

Transactions the of Directors

Yonggang

Feasibility Report on for

and ZHAO

Commodity Futures consideration.Xiutian

Hedging

Transactions the

Proposal Regarding

Foreign Exchange

Hedging

Transactions and the

Feasibility Report on

Foreign Exchange

Hedging

Transactions

The relevant

Considered the proposals

Proposal Regarding were approved

April 22 Application for and submitted

YUAN 2025 Facilities from Banks to the Board

Yonggang and Other Financial of Directors

SHAN Institutions in 2025 for

Strategy and Jianbin consideration.ESG WANG 9

Committee Zhangzhong The relevantConsidered the

SONG Liguo proposalsProposal Regarding

and GAO were approvedthe Acquisition of

Yongru May 12 and submitted100% Equity

2025 to the Board

Interests in GMD

of Directors

Group in France &

for

Debt Restructuring

consideration.

58DSBJ Annual Report 2025

No. of Important

Date of Performance of Objections

Committee Members meetings Subject opinions and

meeting other duties (if any)

held suggestions

Considered the

Proposal Regarding

External Investments

the Proposal

The relevant

Regarding Capital

proposals

Increase in Wholly-

were approved

owned Subsidiary

June 10 and submitted

MFLEX Yancheng

2025 to the Board

Co. Ltd. and the

of Directors

Proposal Regarding

for

Capital Reduction in

consideration.Wholly-owned

Subsidiary Chaowei

Microelectronics

(Yancheng) Co. Ltd.The relevant

proposals

Considered the

were approved

Proposal for

July 10 and submitted

External Investment

2025 to the Board

and Related-party

of Directors

Transactions

for

consideration.The relevant

Considered the proposals

Proposal Regarding were approved

July 25 Investment to Build a and submitted

2025 High-end Printed to the Board

Circuit Board of Directors

Project for

consideration.The relevant

proposals

Considered the

were approved

Proposal Regarding

August 5 and submitted

Capital Increase in

2025 to the Board

Wholly-owned

of Directors

Subsidiary

for

consideration.Considered the

Proposal Regarding

Issuance of H Shares

and Listing on the

The relevant

Main Board of Stock

proposals

Exchange of Hong

were approved

Kong Limited the

October and submitted

Proposal Regarding

14 2025 to the Board

the Plan for Issuance

of Directors

of H Shares and

for

Listing on the Main

consideration.Board of Stock

Exchange of Hong

Kong Limited the

Proposal Regarding

59DSBJ Annual Report 2025

No. of Important

Date of Performance of Objections

Committee Members meetings Subject opinions and

meeting other duties (if any)

held suggestions

Converting the

Company to a Joint

Stock Limited

Company Offering

and Listing Shares

Overseas and the

Proposal Regarding

the Plan for the Use

of Proceeds Raised

by Offering H Shares

Considered the

Proposal Regarding

Renaming the

Strategy Committee

of the Board of The relevant

Directors and proposals

Amending Its were approved

November Working Rules and and submitted

3 2025 the Proposal to the Board

Regarding of Directors

Formulating the for

Environment consideration.Society and

Governance (ESG)

Management

Regulations

Considered the

Proposal Regarding

The relevant

the Estimation of the

proposals

Amount of External

were approved

Guarantees in 2026

December and submitted

and the Proposal

12 2025 to the Board

Regarding

of Directors

Application for

for

Facilities from Banks

consideration.and Other Financial

Institutions in 2026

YUAN

The relevant

Yonggang

proposals

YUAN Considered the

were approved

Yongfeng Proposal Regarding

Nomination October and submitted

WANG 1 the Election of

Committee 14 2025 to the Board

Zhangzhong Independent

of Directors

SONG Liguo Directors

for

and GAO

consideration.Yongru

YUAN The relevant

Yonggang Considered the proposals

YUAN Proposal Regarding were approved

Compensation

Yongfeng April 22 the Remunerations of and submitted

and Appraisal 2

WANG 2025 the Directors and to the Board

Committee

Zhangzhong Senior Executives of of Directors

SONG Liguo the Company in 2025 for

and GAO consideration.

60DSBJ Annual Report 2025

No. of Important

Date of Performance of Objections

Committee Members meetings Subject opinions and

meeting other duties (if any)

held suggestions

Yongru The relevant

Considered the

proposals

Proposal Regarding

were approved

Purchasing the

October and submitted

Director Senior

14 2025 to the Board

Executive and

of Directors

Prospectus Liability

for

Insurance

consideration.VII. Activities of the Audit Committee

Whether the Audit Committee has identified any risk involving the Company in its supervisory activities during the reporting

period

□ Yes□ No

The Audit Committee has not raised any objection to the supervisory matters during the reporting period.VIII. Employees

1. Number structure of profession and education of employees

Number of current employees of the parent at the end of the

1492

reporting period

Number of current employees of the major subsidiaries at the

37753

end of the reporting period

Total number of current employees at the end of the reporting

39245

period

Total number of salaried employees during the reporting period 39245

Total number of retired employees to or for whom the parent

0

and the major subsidiaries are obligated to make payments

Structure of profession

Categories of profession Number of employees

Production staff 29716

Sales staff 604

Technical staff 7056

Financial staff 217

Administrative staff 505

Management staff 1147

Total 39245

Education

Degree of education Number of employees

Doctor 30

Master 746

Undergraduate 5118

Vocational college 6092

Below vocational college 27259

Total 39245

61DSBJ Annual Report 2025

2. Compensation policies

We advocate the creation of value and give priority to high-performance teams and individuals in compensation and incentives.We have sound compensation and incentive policies in place which are designed to attract and retain outstanding technical and

management talents with competitive compensation and give long-term incentives to our employees through the combination of

short- medium- and long-term incentives by taking into account our overall operating results and the employees’ performance in

order to enhance our core competencies.

3. Training programs

We actively recruit seek and train talents and make efforts to build an efficient and comprehensive talent training system to

continuously improve our employees’ comprehensive capabilities; conduct capability improvement and training programs in

various forms focusing on cadre fostering management of engineers and other professional personnel and building of talent pools

to improve our employees’ professional quality skills and management capabilities; actively provide our employees with learning

and growth opportunities encourage them to strive for progress and build talent pools to promote the achievement of our

strategic objectives.

4. Outsourced workers

□ Applicable□ N/A

IX. Profit Distribution and Transfer of Capital Reserve to the Share Capital

Establishment implementation or adjustment of profit distribution policy in particular cash dividend policy during the reporting

period

□ Applicable □ N/A

Pursuant to relevant provisions of the Regulatory Guidance for Listed Companies No. 3 – Distribution of Cash Dividends the

AOA and the Three-year Plan for Returns to Shareholders (2024-2026) in comprehensive consideration of the Company’s actual

operation and development future business development and fund requirements the Company has no plan to pay cash dividends

distribute bonus shares or convert any capital reserve to the share capital.Special explanation about the cash dividend policy

Whether it complies with the provisions of the articles

of association or requirements of resolutions of the Yes

general meeting of the Company

Whether the standard and ratio of cash dividend

Yes

distribution are clear and definite

Whether the relevant decision-making processes and

Yes

mechanisms are sound

Whether the independent directors have performed

Yes

their duties and exercised their functions

The Company is at the critical stage of strategic upgrade at present.If the Company has not distributed cash dividends To take the development opportunities of the industry improve the

explain the reason and describe the measures to be global layout and fully enhance long-term profitability and core

taken in order to increase the returns to investors in the competitiveness we completed the strategic acquisition of GMD Group

future: in France and Source Photonics in 2025 with a total investment of RMB

6.749 billion greater than the net profit attributable to shareholders of

62DSBJ Annual Report 2025

the listed company namely RMB 1.386 billion. This circumstance is in

compliance with the relevant provisions on not distributing cash

dividends in the AOA and the Three-year Plan for Returns to

Shareholders (2024-2026); therefore the Company has no plan of profit

distribution for 2025.This distribution solution matches with the Company’s

development stage actual operation and future fund requirements. We

will concentrate funds on core strategic projects to lay a solid

foundation for long-term development despite the short-term suspension

of profit distribution hence effectively protecting the long-term interests

of all shareholders especially minority shareholders while maintaining

stable operation.The retained profits not distributed at the end of 2025 will be

carried over to subsequent years and be fully used for the operation of

the Company as a fund guarantee for future performance growth which

is in compliance with the interests of the Company and all shareholders

as a whole.In the future we will strive to improve operating performance and

enterprise value to guarantee returns to shareholders. After achieving

mature operation development and stable profitability improvement we

will gradually increase the ratio of profit distribution to give back to

shareholders on the basis of continuously improved operating

performance and stable investment returns.Whether the minority shareholders have sufficient

opportunities to express their opinions and requests

Yes

and their legitimate rights and interests are fully

protected

Whether the conditions and procedures in respect of

any adjustment or amendment of the cash dividend

N/A

policy comply with the applicable regulations and are

transparent

Whether the Company has made a profit in the current period and the parent has profits available for distribution to the

shareholders but the Company does not propose to distribute cash dividends

□ Applicable □ N/A

Reason why the Company has made a profit in the current

period and the parent has profits available for distribution to the

Use of retained profits and plan thereof

shareholders but the Company does not propose to distribute

cash dividends

The Company is at the critical stage of strategic upgrade at

present. To take the development opportunities of the industry

improve the global layout and fully enhance long-term

profitability and core competitiveness we completed the

The retained profits not distributed at the end of 2025 will be

strategic acquisition of GMD Group in France and Source

carried over to the next year and be fully used for the operation

Photonics in 2025 with a total investment of RMB 6.749

of the Company as a fund guarantee for future performance

billion greater than the net profit attributable to shareholders of

growth which is in compliance with the interests of the

the listed company namely RMB 1.386 billion. This

Company and all shareholders as a whole.circumstance is in compliance with the relevant provisions on

not distributing cash dividends in the AOA and the Three-year

Plan for Returns to Shareholders (2024-2026); therefore the

Company has no plan of profit distribution for 2025.Particulars of profit distribution and transfer of capital reserve to the share capital for the reporting period

□ Applicable□ N/A

The Company has no plan to pay cash dividends distribute bonus shares or convert any capital reserve to the share capital for this

year.

63DSBJ Annual Report 2025

X. Share Incentive Plans Employee Stock Ownership Plans or Other Employee Incentives

□ Applicable□ N/A

The Company did not implement share incentive plans employee stock ownership plans or other employee incentives during the

reporting period.XI. Establishment and Implementation of Internal Controls during the Reporting Period

1. Establishment and implementation of internal controls

Pursuant to the requirements of the Company Law of the People’s Republic of China the Basic Internal Control Standards for

Enterprises and the relevant guidelines we have established a sound internal control system according to our actual situations and

needs of management. During the reporting period we have continuously improved the internal control system carried out

internal control self-assessment and identified deficiencies in internal control risks and hazards to further improve the

effectiveness of our internal controls. According to the assessment of material weakness in internal control over financial reporting

as of the reference date for the assessment report on internal controls there’s no material weakness in our internal control over

financial reporting. We have maintained effective internal control over financial reporting in all material respects pursuant to the

requirements of the internal control standard systems for enterprises and other relevant provisions. According to the assessment of

material weakness in internal control over non-financial reporting as of the reference date for the assessment report on internal

controls there’s no material weakness in our internal control over non-financial reporting.

2. Material weaknesses in internal controls identified during the reporting period

□ Yes□ No

XII. Management and Control of Subsidiaries during the Reporting Period

Company Plan of Progress of Issues encountered Progress of

Measures taken Future plan

name integration integration during integration solution

N/A N/A N/A N/A N/A N/A N/A

XIII. Assessment Report on Internal Controls or Auditor’s Report on Internal Controls

1. Assessment report on internal controls

Disclosure date of the full copy of

the assessment report on internal April 22 2026

controls

Full copy of the assessment report

www.cninfo.com.cn

on internal controls available at

Ratio of total assets of the entities

covered by the assessment to total

assets recorded in the consolidated 100.00%

financial statements of the

Company

Ratio of total operating revenue of 100.00%

the entities covered by the

64DSBJ Annual Report 2025

assessment to total operating

revenue recorded in the

consolidated financial statements of

the Company

Criteria for determination of deficiencies

Type Financial reporting Non-financial reporting

Indicators of material weaknesses in internal

control over financial reporting include:

(i) any fraud on the part of directors and senior

executives of the Company;

(ii) any correction of a financial report already

disclosed;

(iii) any material misstatement in the financial

report for the current period that was found by

the public certified accountants but failed to be

identified through internal controls; Indicators of material weaknesses in

and (iv) ineffective supervision by the Audit internal control over non-financial

Committee and the Internal Audit Department reporting include:

of the Company over the financial reports (i) any violation of the applicable laws

disclosed externally or internal control over regulations or normative documents of

financial reporting. the country;

Indicators of significant deficiencies in internal (ii) unscientific procedure in making any

control over financial reporting include: major decision;

Qualitative criteria (i) failure to correctly select and apply (iii) absence of any regulations which

accounting policies pursuant to the generally may result in systemic failure;

accepted accounting principles; (iv) failure to rectify any material

(ii) failure to establish anti-fraud procedures weakness or significant deficiency;

and controls; and (v) any other circumstance that has a

(iii) failure to establish or implement controls material adverse effect on the Company.over the accounting treatment of extraordinary Other deficiencies are classified as

or special transactions and failure to establish significant or general deficiencies

corresponding compensatory controls; depending on the degree of effect.and (iv) one or more deficiencies existing in

control over the preparation of financial report

at the end of the period and inability to

reasonably ensure the truthfulness and

completeness of the financial statements.General deficiencies in internal control over

financial reporting include deficiencies in

control other than material weakness and

significant deficiency.Material weakness: amount of misstatement ≥ Material weakness: direct loss > 0.5% of

0.5% of the operating revenue the total assets

Significant deficiency: 0.3% of the operating Significant deficiency: 0.2% of the total

Quantitative criteria revenue ≤ amount of misstatement < 0.5% of assets < direct loss ≤ 0.5% of the total

the operating revenue assets

General deficiency: amount of misstatement < General deficiency: direct loss ≤ 0.2% of

0.3% of the operating revenue the total assets

Number of material weaknesses in

0

financial reporting

Number of material weaknesses in

0

non-financial reporting

Number of significant deficiencies

0

in financial reporting

Number of significant deficiencies 0

65DSBJ Annual Report 2025

in non-financial reporting

2. Auditor’s report on internal controls

□ Applicable □ N/A

Auditor’s opinion expressed in the auditor’s report on internal controls

We are of the opinion that DSBJ has maintained effective internal control over financial reporting in all material respects pursuant

to the Basic Internal Control Standards for Enterprises and other relevant provisions as of December 31 2025.Disclosure of the auditor’s report on internal controls Disclosed

Disclosure date of the full copy of the auditor’s report on

April 22 2026

internal controls

Full copy of the auditor’s report on internal controls available

www.cninfo.com.cn

at

Type of opinion expressed in the auditor’s report on internal

Standard unqualified opinion

controls

Whether there’s any material weakness in non-financial

No

reporting

Whether the accounting firm issued a modified auditor’s report on internal controls

□ Yes□ No

Whether the auditor’s report on internal controls issued by the accounting firm is consistent with the opinion expressed in the self-

assessment report of the Board of Directors

□ Yes □ No

Whether non-standard audit opinions on internal control were issued for the reporting period or the previous year

□ Yes□ No

XIV. Rectification of Non-compliance Found in the Special Self-examination of Corporate

Governance of the Listed Company

N/A

XV. Disclosure of Environmental Information

Whether the Listed Company and its major subsidiaries are included in the list of enterprises to disclose environmental

information in accordance with law

□ Yes □ No

Number of enterprises included in the list of enterprises to

disclose environmental information in accordance with 9

law

Index for query of environmental information reports disclosed in

No. Enterprise name

accordance with law

Jiangsu Source Communication Technology

Co. Ltd.

2 MFLEX Suzhou Co. Ltd. (Guoxiang factory) Official website of the Department of Ecology and Environment of

3 MFLEX Yancheng Co. Ltd. Jiangsu Province (http://sthjt.jiangsu.gov.cn/) – “EnvironmentalChaowei Microelectronics (Yancheng) Co. Protection Faces” Information Disclosure Platform – Lawful Enterprise

4

Ltd. Information Disclosure

Yancheng Dongshan Precision Manufacturing

5

Co. Ltd.

66DSBJ Annual Report 2025

Yancheng Dongchuang Precision

6

Manufacturing Co. Ltd.

7 Multek Technology (Zhuhai) Co. Ltd. The Department of Ecology and Environment of Guangdong Province

– Guangdong Enterprise Environmental Information Disclosure System

8 Multek Industries Limited

According to Law

9 Multek China Limited (https://gdee.gd.gov.cn/gdeepub/front/dal/dal/newindex)

XVI. Social Responsibility

For details refer to the 2025 Environmental Social and Corporate Governance (ESG) Report disclosed on www.cninfo.com.cn.XVII. Consolidating and Expanding the Result of Poverty Alleviation and Rural

Revitalization

For details refer to the 2025 Environmental Social and Corporate Governance (ESG) Report disclosed on www.cninfo.com.cn.

67DSBJ Annual Report 2025

Section V Significant Matters

I. Fulfillment of Covenants

1. Covenants made by the actual controllers shareholders affiliates and acquirer of the Company the

Company itself and other related parties that have been fulfilled during the reporting period or have not

yet been completely fulfilled as of the end of the reporting period

□ Applicable □ N/A

Validity

Background of Type of Time of Status of

Covenantor Content of covenant period of the

covenant covenant covenant fulfillment

covenant

Each of the shareholders

YUAN Yonggang and YUAN

Yongfeng as director and

senior executive of the

Company covenants that so

long as I remain a director

and senior executive of the

As of the end

Company I will not transfer

of the

Covenants more than 25% of the total

YUAN reporting

related to shares held by me in the

Yonggang and April 9 Permanently period the

restrictions on Company each year; and if I

YUAN 2010 binding covenantors

the sale of cease to be a director and

Yongfeng have complied

shares senior executive of the

with such

Company I will not transfer

covenants.any shares held by me in the

Company within half a year

and will not transfer more

than 50% of the total shares

Covenant held by me in the Company

relating to through the stock exchange

initial public within 12 months thereafter.offering or

Covenants related to

subsequent

Covenants horizontal competition: Each As of the end

fundraisings

related to of the shareholders YUAN of the

YUAN

horizontal Yonggang YUAN Yongfeng reporting

Yonggang

competition and YUAN Fugen covenants April 9 Permanently period the

YUAN

related-party that I do not directly or 2010 binding covenantors

Yongfeng and

transactions indirectly engage in any have complied

YUAN Fugen

and occupation business in competition with with such

of funds the business actually covenants.conducted by the Company.Covenants related to

Covenants horizontal competition: Each As of the end

related to of the shareholders YUAN of the

YUAN

horizontal Yonggang YUAN Yongfeng reporting

Yonggang

competition and YUAN Fugen covenants June 11 Permanently period the

YUAN

related-party that after the completion of 2018 binding covenantors

Yongfeng and

transactions this material asset have complied

YUAN Fugen

and occupation restructuring I will not with such

of funds directly or through any covenants.affiliate participate or engage

68DSBJ Annual Report 2025

in any business that

substantially competes or

might compete with the

business of the Company; and

if any product manufactured

or business conducted by any

entity wholly owned

controlled or invested by me

in the future competes or

might compete with the

Company at the request of

the Company I will transfer

all of the investment or shares

held by me in such entity

give priority to the Company

or its wholly owned

subsidiary in the acquisition

of such investment or shares

subject to the applicable laws

and regulations and use my

best efforts to procure that the

transfer price will be

determined on an arm’s

length basis; and if I or any of

my affiliates breaches any

covenant set forth above I

will indemnify the Company

and other shareholders for the

damages arising therefrom

according to law.Covenants related to the

regulation and reduction of

related-party transactions:

Each of the shareholders

YUAN Yonggang YUAN

Yongfeng and YUAN Fugen

covenants that (i) I and my

affiliates will avoid or reduce

related-party transactions with

the Company to the maximum

Covenants extent practicable; (ii) with As of the end

related to respect to the related-party of the

YUAN

horizontal transactions that are reporting

Yonggang

competition unavoidable or necessary I June 11 Permanently period the

YUAN

related-party will abide by the principle of 2018 binding covenantors

Yongfeng and

transactions justice fairness and openness have complied

YUAN Fugen

and occupation enter into the relevant with such

of funds agreements according to law covenants.perform the legal procedures

pursuant to the applicable

laws regulations normative

documents the Articles of

Association and other

relevant provisions of the

Company ensure that such

related-party transactions are

fair comply with the

regulations and will not

69DSBJ Annual Report 2025

damage the legitimate rights

and interests of the Company

and other shareholders and

make the relevant information

disclosures promptly in

accordance with the

requirements of the applicable

laws regulations and

normative documents; and

(iii) I will exercise the

shareholder rights in strict

accordance with the Company

Law and other applicable laws

and regulations and the

relevant provisions of the

Articles of Association of the

Company and abstain from

the voting on the related-party

transactions involving me and

other entities controlled by

me at the general meeting of

the Company in accordance

with the relevant provisions.I. Within six months from the

base date for pricing (March

13 2024) for the private

placement of shares I and the

affiliates under my control

have not sold the shares of

DSBJ; II. From the base date

for pricing to the expiration of

eighteen months after the

private placement of DSBJ is

completed I and the affiliates

under my control will neither

sell DSBJ’s shares in any As of the end

form nor have any plan of of the

Covenant not

YUAN selling DSBJ’s shares; and reporting

to sell the

Yonggang and III. My covenant is an December Permanently period the

Company’s

YUAN irrevocable covenant which 18 2024 binding covenantors

shares during a

Yongfeng shall be binding on me and have complied

specific period

the affiliates under my control with such

from the execution date of covenants.this covenant and the

transferee under the share

transfer described above shall

inherit this covenant; if I and

the affiliates under my control

sell shares in violation of this

covenant all the proceeds

from selling such shares shall

be owned by DSBJ and I shall

be fully responsible for all the

legal liabilities arising

therefrom.YUAN Covenant regarding the As of the end

Other Other October Permanently

Yonggang remedial measures against of the

covenants covenants 10 2019 binding

YUAN dilution of current earnings reporting

70DSBJ Annual Report 2025

Yongfeng caused by the private period the

ZHAO placement: Each of the covenantors

Xiutian directors and senior have complied

SHAN Jianbin executives of the Company with such

WANG Xu covenants that: (i) I will not covenants.MAO Xiaoyan transfer benefits to any other

and MA entity or individual without

Liqiang compensation or on unfair

terms or otherwise damage

the interests of the Company;

(ii) I will exercise self-

discipline in consumption in

performing my duties; (iii) I

will not use the assets of the

Company to engage in any

investment or consumption

activities not in connection

with my duties; (iv) I will link

the compensation system

adopted by the Board of

Directors or the

Compensation Committee

with the implementation of

the Company’s remedial

measures against dilution of

current earnings; (v) if the

Company implements any

share incentive plan in the

future I will link the vesting

conditions under such share

incentive plan with the

implementation of the

Company’s remedial

measures against dilution of

current earnings; and (vi) I

will seriously implement the

Company’s remedial

measures against dilution of

current earnings and abide by

the relevant covenants made

by me; and if I breach any

covenant set forth above I

will indemnify the Company

or the investors for the losses

arising therefrom according to

law and accept the

punishments that the

competent regulatory

authorities may impose on

me.Covenant regarding the As of the end

remedial measures against of the

YUAN

dilution of current earnings reporting

Yonggang

Other caused by the private October Permanently period the

YUAN

covenants placement: Each of the 17 2019 binding covenantors

Yongfeng and

controlling shareholders and have complied

YUAN Fugen

actual controllers of the with such

Company covenants that I covenants.

71DSBJ Annual Report 2025

will not interfere with the

management and operation of

the Company beyond my

powers or infringe on the

interests of the Company; and

as the person responsible for

the serious implementation of

the remedial measures against

dilution of current earnings if

I breach or refuse to fulfill

any covenant set forth above

I will assume the relevant

liabilities according to law.To ensure the effective

implementation of the

remedial measures against

dilution of earnings to be

taken by the Company each

of the controlling

shareholders and actual

controllers of the Companycovenants that: “(i) I will notinterfere with the

management and operation of

the Company beyond my

powers or infringe on the

interests of the Company; (ii)

from the date of this Letter of

Undertaking till the

completion of this offering in

case of any new regulatory

provisions promulgated by

As of the end

the CSRC or the SZSE

of the

YUAN regarding the remedial

reporting

Yonggang measures against dilution of

Other March 12 Permanently period the

YUAN earnings and related

covenants 2024 binding covenantors

Yongfeng and covenants as a result of

have complied

YUAN Fugen which the covenants set forth

with such

above no longer comply with

covenants.such new provisions I will

make additional covenants in

accordance with such new

provisions; and (iii) I will

seriously implement the

remedial measures against

dilution of earnings adopted

by the Company and fulfill

my covenants in connection

therewith and if I breach or

refuse to fulfill any covenant

set forth above accept the

penalties or other regulatory

actions that may be imposed

or taken by the CSRC the

SZSE or other competent

securities authorities against

me and indemnify the

Company or the investors for

72DSBJ Annual Report 2025

the losses arising therefromaccording to law.”

To ensure the effective

implementation of the

remedial measures against

dilution of earnings to be

taken by the Company each

of the directors and senior

executives of the Companycovenants that: “(i) I will nottransfer benefits to any other

entity or individual without

compensation or on unfair

terms or otherwise damage

the interests of the Company;

(ii) I will exercise self-

discipline in consumption in

performing my duties; (iii) I

will not use the assets of the

Company to engage in any

investment or consumption

activities not in connection

with my duties; (iv) I will link

the compensation system

adopted by the Board of

YUAN Directors or the

Yonggang Compensation Committee As of the end

YUAN with the implementation of of the

Yongfeng the Company’s remedial reporting

ZHAO Other measures against dilution of March 12 Permanently period the

Xiutian covenants earnings; (v) if the Company 2024 binding covenantors

SHAN Jianbin implements any share have complied

WANG Xu incentive plan in the future I with such

and MAO will link the vesting covenants.Xiaoyan conditions under such share

incentive plan with the

implementation of the

Company’s remedial

measures against dilution of

earnings; (vi) from the date of

this Letter of Undertaking till

the completion of this

offering in case of any new

regulatory provisions

promulgated by the CSRC or

the SZSE regarding the

remedial measures against

dilution of earnings and

related covenants as a result

of which the covenants set

forth above no longer comply

with such new provisions I

will make additional

covenants in accordance with

such new provisions; and (vii)

I will seriously implement the

remedial measures against

dilution of current earnings

73DSBJ Annual Report 2025

adopted by the Company and

fulfill my covenants in

connection therewith and if I

breach any covenant set forth

above indemnify the

Company or the investors for

the losses arising therefromaccording to law.”

Whether the

covenants have

Yes

been fulfilled

on time

If any covenant

fails to be

fulfilled on

time please

explain the N/A

reason and the

relevant actions

to be taken in

detail

2. If the Company has made any profit forecast on its assets or project and the reporting period falls

within the period of such profit forecast explanation about whether the goal has been achieved and the

related reasons

□ Applicable□ N/A

3. Performance covenants of the Company

□ Applicable□ N/A

II. Occupation by the Controlling Shareholders and their Affiliates of the Funds of the

Listed Company for Non-operating Purpose

□ Applicable□ N/A

Our controlling shareholders and their affiliates have not occupied our funds for non-operating purposes during the reporting

period.III. External Guarantees in Violation of the Regulations

□ Applicable□ N/A

We have not provided any external guarantee in violation of the applicable regulations during the reporting period.IV. Explanation by the Board of Directors about the Most Recent Modified Auditor’s

Report

□ Applicable□ N/A

74DSBJ Annual Report 2025

V. Explanation by the Board of Directors and the Independent Directors (if any) about the

Modified Auditor’s Report Issued by the Accounting Firm for the Reporting Period

□ Applicable□ N/A

VI. Changes in the Accounting Policies and Accounting Estimates Compared with the

Financial Report for the Previous Year or Correction of Material Accounting Errors

□ Applicable□ N/A

During the reporting period there wasn’t any change in the accounting policies or accounting estimates or correction of material

accounting errors.VII. Explanation of Changes in the Scope of Consolidation Compared with the Financial

Report for the Previous Year

□ Applicable □ N/A

Company name Method of acquisition or disposal

Source Photonics Acquisition

GMD Group Acquisition

DSBJ Europe Holding Newly established

DSBJ International Deregistration

VIII. Engagement and Termination of Engagement of Accounting Firm

Accounting firm currently engaged

Name of domestic accounting firm Pan-China Certified Public Accountants LLP

Remuneration of domestic accounting firm (in RMB 0’000) 395

Consecutive years in which the domestic accounting firm has provided auditing

15

service

Certified public accountants of the domestic accounting firm ZHANG Yang and FU Zhenlong

Consecutive years in which the certified public accountants of the domestic

44

accounting firm have provided auditing service

Name of foreign accounting firm (if any) N/A

Remuneration of foreign accounting firm (if any) (in RMB 0’000)

Consecutive years in which the foreign accounting firm (if any) has provided

N/A

auditing service

Certified public accountants of the foreign accounting firm (if any) N/A

Consecutive years in which the certified public accountants of the foreign

N/A

accounting firm (if any) have provided auditing service

Whether a new accounting firm was engaged during the reporting period

□ Yes□ No

Engagement of accounting firm for auditing internal controls financial advisor or sponsor

□ Applicable □ N/A

During the reporting period we engaged Pan-China Certified Public Accountants LLP as the auditor of internal controls

responsible for the audit of our internal controls in 2025.

75DSBJ Annual Report 2025

IX. Risk of Delisting after Disclosure of the Annual Report

□ Applicable□ N/A

X. Matters Relating to Bankruptcy and Reorganization

□ Applicable□ N/A

We have not been involved in any bankruptcy or reorganization proceedings during the reporting period.XI. Material Litigations and Arbitrations

□ Applicable□ N/A

We have not been involved in any material litigation or arbitration proceedings during the reporting period.XII. Punishments and Rectifications

□ Applicable□ N/A

We have not been involved in any punishment and rectification during the reporting period.XIII. Credit Standing of the Company and its Controlling Shareholders and Actual

Controllers

□ Applicable□ N/A

XIV. Material Related-party Transactions

1. Related-party transactions relating to day-to-day operation

□ Applicable□ N/A

There has been no related-party transaction relating to day-to-day operation during the reporting period.

2. Related-party transactions involving the acquisition or sale of assets or equities

□ Applicable□ N/A

There has been no related-party transaction involving the acquisition or sale of assets or equities during the reporting period.

3. Related-party transactions involving joint external investment

□ Applicable□ N/A

There has been no related-party transaction involving joint external investment during the reporting period.

4. Debts owed by and to related parties

□ Applicable□ N/A

There has been no debt owed by or to related parties during the reporting period.

76DSBJ Annual Report 2025

5. Dealings with affiliated financial companies

□ Applicable□ N/A

There has been no deposit loan facility or other financial businesses between us and any of our affiliated financial companies.

6. Dealings between financial companies controlled by the Company and its affiliates

□ Applicable□ N/A

There has been no deposit loan facility or other financial businesses between any of our controlled financial companies and

affiliates.

7. Other material related-party transactions

□ Applicable □ N/A

To implement the idea of green development and achieve the objective of sustainable development we held the 23rd Meeting

of the 6th Board of Directors on July 11 2025 which considered and adopted the Proposal for External Investment and Related-

party Transactions approving DSBJ Pte. Ltd. (hereinafter referred to as “DSG”) a wholly owned subsidiary of the Company to

receive the shares of China Renewable Power Infrastructure LPF (hereinafter referred to as the “CRPIF Fund”) to be invested by

Hong Kong Dongshan Investment Holdings Limited (hereinafter referred to as “Hong Kong Investment Holdings”). The CRPIF

Fund mainly invests in new energy infrastructure like photovoltaic wind power etc. and supporting energy storage projects. For

its target scale of no more than USD 650 million DSG will invest no more than USD 30.00 million to subscribe to its fund shares

with the funds owned by the Company.Query for interim reports on material related-party transactions on the information disclosure website

Website for disclosure of interim

Name of interim announcement Disclosure date of interim announcement

announcement

Announcement on External Investment

July 12 2025 www.cninfo.com.cn

and Related-party Transaction

XV. Particulars and Performance of Material Contracts

1. Trusteeship contracting and leases

(1) Trusteeship

□ Applicable□ N/A

No such case during the reporting period.

(2) Contracting

□ Applicable□ N/A

No such case during the reporting period.

(3) Leases

□ Applicable□ N/A

77DSBJ Annual Report 2025

No such case during the reporting period.

2. Material guarantees

□ Applicable □ N/A

In RMB 0’000

External guarantees provided by the Company and its subsidiaries (excluding those provided for the subsidiaries)

Disclosure

Whether

date of

Counter or not

announcement Maximum Effective Actual Collateral Whether

Type of guarantee Term of provided

Obligor of the amount date of amount (if or not

guarantee (if guarantee for a

maximum guaranteed guarantee guaranteed applicable) expired

applicable) related

amount

party

guaranteed

Suzhou Toprun

Joint and

Electric

3000 2440 several

Equipment Co.guarantee

Ltd.Total amount of

Total amount of external external guarantee

guarantee approved during the 3000 actually provided 4800

reporting period (A1) during the reporting

period (A2)

Total amount of

Total amount of external external guarantee

guarantee approved as at the end 3000 actually provided as at 2440

of the reporting period (A3) the end of the reporting

period (A4)

Guarantees provided by the Company for its subsidiaries

Disclosure

Whether

date of

Counter or not

announcement Maximum Effective Actual Collateral Whether

Type of guarantee Term of provided

Obligor of the amount date of amount (if or not

guarantee (if guarantee for a

maximum guaranteed guarantee guaranteed applicable) expired

applicable) related

amount

party

guaranteed

Dragon

Electronix

Holdings Inc. 200000 150800

and its

subsidiaries

Hong Kong

Dongshan

Holding Limited 127000 39700

and its

subsidiaries

Multek Group

(Hong Kong)

700000323258.98

Limited and its

subsidiaries

Source

Photonics

10000073395.62

Holdings

(Cayman)

78DSBJ Annual Report 2025

Limited and its

subsidiaries

Chaowei

Microelectronics

2000010000

(Yancheng) Co.Ltd.Suzhou JDI

2000014800

Electronics Inc.Mutto Optronics

Technology Co. 50000 15505.7

Ltd.Suzhou RF Top

Electronic

50001129.46

Communication

Co. Ltd.Suzhou

Chengjia

Precision 5000 1000

Manufacturing

Co. Ltd.Suzhou

Yongchuang

Communication 20000 4714.42

Technology Co.Ltd.Yancheng

Dongchuang

Precision 140000 85586.9

Manufacturing

Co. Ltd.Yancheng

Dongshan

Precision 60000 44687.87

Manufacturing

Co. Ltd.Groupe

Mecanique

Decoupage S.A. 50000 4250.47

and its

subsidiaries

Total amount of

Total amount of guarantee

guarantee actually

approved to be provided for

1500000 provided for 1129401.49

subsidiaries during the reporting

subsidiaries during the

period (B1)

reporting period (B2)

Total amount of

Total amount of guarantee guarantee actually

approved to be provided for provided for

1500000767018.95

subsidiaries as at the end of the subsidiaries as at the

reporting period (B3) end of the reporting

period (B4)

Guarantees provided by subsidiaries for each other

Disclosure CounterMaximum Effective Actual Collateral Whether Whether

date of Type of guarantee Term ofObligor amount date of amount (if or not or not

announcement guarantee (if guaranteeguaranteed guarantee guaranteed applicable) expired provided

of the applicable) for a

79DSBJ Annual Report 2025

maximum related

amount party

guaranteed

Total amount of

Total amount of guarantee

guarantee actually

approved to be provided for

provided for

subsidiaries during the reporting

subsidiaries during the

period (C1)

reporting period (C2)

Total amount of

Total amount of guarantee guarantee actually

approved to be provided for provided for

subsidiaries as at the end of the subsidiaries as at the

reporting period (C3) end of the reporting

period (C4)

Total amount of guarantee provided by the Company

Total amount of

Total amount of guarantee guarantee actually

approved during the reporting 1503000 provided during the 1134201.49

period (A1+B1+C1) reporting period

(A2+B2+C2)

Total amount of

Total amount of guarantee guarantee actually

approved as at the end of the 1503000 provided as at the end 769458.95

reporting period (A3+B3+C3) of the reporting period

(A4+B4+C4)

Ratio of the total amount of guarantee (A4+B4+C4) to the

35.85%

net assets of the Company

Incl.:

Outstanding guarantees provided for shareholders actual

0

controllers and their affiliates (D)

Outstanding guarantees directly or indirectly provided for

203170.94

obligors whose debt-to-assets ratio exceeds 70% (E)

Portion of the total amount of guarantee in excess of 50% of

0

the net assets (F)

Total (D+E+F) 203170.94

Explanation about the joint and several liabilities that have

been or might be incurred in respect of outstanding N/A

guarantees during the reporting period (if any)

Explanation about external guarantees provided in

N/A

contravention of the established procedures (if any)

3. Entrusted management of cash assets

(1) Entrusted wealth management

□ Applicable □ N/A

Particulars of entrusted wealth management during the reporting period

In RMB 0’000

80DSBJ Annual Report 2025

Balance of entrusted wealth

Type of product Risk characteristics management during the Overdue amount

reporting period

Bank wealth management

No risk 52317.69

product

Assets management by financial institutions entrusted by the Company as a single principal or high-risk entrusted wealth

management with low security and low liquidity of investment

□ Applicable□ N/A

(2) Entrusted loans

□ Applicable□ N/A

No such case during the reporting period.

4. Other material contracts

□ Applicable□ N/A

We have not entered into any other material contract during the reporting period.XVI. Use of Offering Proceeds

□ Applicable □ N/A

1. Summary of use of offering proceeds

□ Applicable □ N/A

In RMB 0’000

Total

Total

Ratio amou Aggre

Perce amou

of nt of gate

ntage nt of

Total used offeri amou

Aggre of Purpo offeri

amou offeri ng nt of

gate offeri Total se and ng

nt of ng proce offeri

amou ng amou where proce

Net offeri proce eds ng

Listin Total nt of proce nt of abouts eds

Year Metho offeri ng eds at the proce

g date offeri offeri eds unuse of that

of d of ng proce the purpo eds

of ng ng the d unuse has

offeri offeri proce eds end of se of the

securi proce proce purpo offeri d remai

ng ng eds used the which purpo

ties eds eds se of ng offeri ned

(1) in the report was se of

alread which proce ng unuse

curren ing chang which

y used has eds proce d for

t period ed in has

(2) been eds more

period (3) = the been

chang than

(2) / curren chang

ed two

(1) t ed

years

period

Privat

e

June

place 1404 1391 1391 1391 100.0

2025 27 0 0 0.00% 0 N/A 0

ment 00 51.25 57.06 57.06 0%

2025

of

shares

81DSBJ Annual Report 2025

1404139113911391100.0

Total -- -- 0 0 0.00% 0 -- 0

0051.2557.0657.060%

Description of the overall use of offering proceeds:

With the approval of the CSRC under the Reply on the Registration of Private Placement of Shares by Suzhou Dongshan

Precision Manufacturing Co. Ltd. (Zheng Jian Xu Ke [2025] No. 911) we privately offered 125693822.00 RMB-denominated

ordinary A-shares at the offer price of RMB 11.17 per share to YUAN Yonggang and YUAN Yongfeng through the lead

underwriter Guotai Haitong Securities Co. Ltd. and raised RMB 1403999991.74 in total and after deduction of the

underwriter’s fee and sponsor’s fee (tax inclusive) totaling RMB 8480000.00 (excluding the prepayment of RMB 1060000.00)

the balance of the offering proceeds RMB 1395519991.74 was remitted to our supervisory account of offering proceeds by

Guotai Haitong Securities Co. Ltd. on June 11 2025. After the deduction of the information disclosure expenses accountant’s fee

attorney’s fee issuance registration and other external costs directly relating to the offering of equity securities totaling RMB

3487447.01 (tax exclusive) and after the deduction of the sponsor’s fees of RMB 1000000.00 (tax exclusive) prepaid by the

Company with its own funds the amount of net offering proceeds was RMB 1391512544.73. Pan-China Certified Public

Accountants LLP verified the receipt of such offering proceeds and issued the Capital Verification Report (PCCPA Capital

Verification [2025] No. 5-2).

2. Committed investment projects using offering proceeds

□ Applicable □ N/A

In RMB 0’000

Aggr

Com Progr Cum Whet

Whet egate

mitte ess of ulativ her

her amou Whet

d inves Date e there’

the Amo nt Inco her

inves Total Total tment when benef s any

proje unt alrea me the

Nam Listin tment com inves as of the its signif

ct has inves dy earne proje

e of g proje Natur mitte tment the proje realiz icant

been ted in inves d in ct has

finan date ct e of d amou end ct is ed as chan

chan the ted as the produ

cing of and proje inves nt as of the ready of the ge in

ged curre of the curre ced

proje secur use ct tment adjus repor for its end the

or nt end nt the

ct ities of amou ted ting inten of the feasi

partia perio of the perio desir

over- nt (1) perio ded repor bility

lly d repor d ed

raise d (3) use ting of the

chan ting result

d =(2)/( perio proje

ged perio

funds 1) d ct

d (2)

Committed investment project

Reple Reple

Priva

nish nish

te

ment ment

place June

of of 1404 1404 1391 1391 100.0

ment 27 No 0 0 N/A No

worki worki 00 00 57.06 57.06 0%

of 2025

ng ng

share

capit capit

s

al al

1404140413911391

Subtotal -- -- -- 0 0 -- --

000057.0657.06

Use of over-raised funds

June

N/A 27 N/A N/A No N/A No

2025

82DSBJ Annual Report 2025

1404140413911391

Total -- -- -- 0 0 -- --

000057.0657.06

Failure to

meet the

scheduled

progress and

produce the

desired result

and reason

thereof (please

describe on a

project-by-

N/A

project basis

including the

reason for

selecting N/A

in the column“whether theproject has

produced the

desiredresult”)

Reason for

significant

change in the N/A

feasibility of

the project

Amount and

use of over-

raised offering

N/A

proceeds and

progress of

use thereof

Cases of

changing the

purpose of

offering

proceeds

without

N/A

permission or

misappropriati

ng offering

proceeds in

violation of

regulations

Change in the

place of the

committed N/A

investment

project

Adjustment of

the method of

implementatio N/A

n of the

committed

investment

83DSBJ Annual Report 2025

project

Funds pre-

invested in the

investment

N/A

project and

replacement

thereof

Temporary

replenishment

of working

capital with N/A

the idle

offering

proceeds

Amount of

surplus

offering N/A

proceeds and

reason thereof

Purpose and

whereabouts

of unused None

offering

proceeds

Problems or

any other

issues in the

use and None

disclosure of

offering

proceeds

3. Changes in the committed investment projects using offering proceeds

□ Applicable□ N/A

We made no change in the committed investment projects using offering proceeds.

4. Review opinions of intermediaries on the deposit and use of offering proceeds

□ Applicable□ N/A

XVII. Other Significant Matters

□ Applicable□ N/A

There’s no other significant matter needing to be explained for the reporting period.XVIII. Significant Matters of Subsidiaries

□ Applicable□ N/A

84DSBJ Annual Report 2025

Section VI Changes in Shares and Shareholders

I. Changes in Shares

1. Changes in shares

In Shares

Before the change +/- After the change

Capitalization

Bonus

Number % New shares of capital Others Subtotal Number %

shares

reserves

I. Non-

31959198718.73%12569382212569382244528580924.31%

tradable shares

1. Shares

held by the

State

2. Shares

held by State-

owned

corporations

3. Shares

held by other

31959198718.73%12569382212569382244528580924.31%

domestic

investors

Incl.:

Shares held by

domestic non-

State-owned

corporations

Shares

held by

domestic 319591987 18.73% 125693822 125693822 445285809 24.31%

natural

persons

4. Shares

held by

foreign

investors

Incl.:

Shares held by

foreign

corporations

Shares

held by

foreign natural

persons

II. Tradable

138632172381.27%138632172375.69%

shares

1. RMB- 1386321723 81.27% 1386321723 75.69%

85DSBJ Annual Report 2025

denominated

ordinary

shares

2. Foreign

currency-

denominated

shares listed

domestically

3. Foreign

currency-

denominated

shares listed

overseas

4. Others

III. Total

1705913710100.00%1256938221256938221831607532100.00%

shares

Cause of change

□ Applicable □ N/A

With the approval of the Shenzhen Stock Exchange and the CSRC 125693822 RMB-denominated ordinary shares issued by the

Company at the issuance price of RMB 11.17 per share were listed on the Shenzhen Stock Exchange on June 27 2025; after the

issuance the total shares of the Company increased from 1705913710 shares to 1831607532 shares.Approval of changes in shares

□ Applicable □ N/A

On March 10 2025 the Company received the Notification Letter of the Opinions of the Review Center on the Private Placement

of Shares by Suzhou Dongshan Precision Manufacturing Co. Ltd. issued by the Listing Review Center of the Shenzhen Stock

Exchange stating that the listing review institution of the Shenzhen Stock Exchange reviewed the application documents for

private placement of shares and concluded that the Company met the issuance conditions listing conditions and information

disclosure requirements. On April 28 2025 the Company received the Reply on the Registration of Private Placement of Shares

by Suzhou Dongshan Precision Manufacturing Co. Ltd. (Zheng Jian Xu Ke [2025] No. 911) (effective date of registration: April

23 2025) which approved the request for registration of private placement of shares by the Company.

Registration of changes in shares

□ Applicable □ N/A

We have completed the registration and custody formalities for the newly issued shares with China Securities Depository and

Clearing Co. Ltd. Shenzhen Branch on June 18 2025 and China Securities Depository and Clearing Co. Ltd. Shenzhen Branch

has issued a certificate of securities registration. The nature of the newly issued shares is non-tradable shares with a lock-up

period of 36 months from the listing date of the shares under the private placement for the 2 persons purchasing such shares.Effect of changes in shares on financial indicators including the basic earnings per share diluted earnings per share net assets per

share attributable to ordinary shareholders of the Company etc. in the last year and the last period

? Applicable□ N/A

1. During the reporting period the Company repurchased 4202200 shares which based on the net assets at the end of 2025 led

to an increase of RMB 0.03/share for the net assets per share attributable to ordinary shareholders of the Company. According to

86DSBJ Annual Report 2025

the net profit attributable to ordinary shareholders of the Company in 2025 this repurchase of shares has little impact on the basic

earnings per share and diluted earnings per share.

2. During the reporting period the Company issued 125693822 new shares which based on the net assets at the end of 2025 led

to a decrease of RMB 0.87/share for the net assets per share attributable to ordinary shareholders of the Company. According to

the net profit attributable to ordinary shareholders of the Company in 2025 this issuance of new shares reduced the basic earnings

per share and diluted earnings per share by RMB 0.03/share.Other information that should be disclosed at the discretion of the Company or at the request of the securities regulatory authorities

□ Applicable□ N/A

2. Changes in non-tradable shares

□ Applicable □ N/A

In Shares

Non-

tradable

Increase in non-

Name of Opening non- shares Closing non- Date of

tradable shares in Reason for restriction

shareholder tradable shares released in tradable shares release

the current period

the current

period

YUAN Private placement of

1516696471005550582522247052028/6/27

Yonggang 100555058 shares

YUAN Private placement of

166791115251387641919298792028/6/27

Yongfeng 25138764 shares

Total 318460762 125693822 444154584 -- --

II. Offering and Listing of Securities

1. Offering of securities (other than preferred shares) during the reporting period

□ Applicable □ N/A

Name of

Date Issuance Number of End

stocks and Discl

of price (or Number of Listing shares date of

derivative Index of disclosure osure

issuan interest shares date approved for transac

securities date

ce rate) listing tion

therefrom

Stocks

RMB

2025- 2025- www.cninfo.com.cn Announcement on the 2025-

DSBJ 11.17/sha 125693822 125693822

6-10 6-27 Listing of A-shares under Private Placement 6-25

re

Description of offering of securities (other than preferred shares) during the reporting period

With the approval of the Shenzhen Stock Exchange and the CSRC 125693822 RMB-denominated ordinary shares issued by the

Company at the issuance price of RMB 11.17 per share were listed on the Shenzhen Stock Exchange on June 27 2025; after the

issuance the total shares of the Company increased from 1705913710 shares to 1831607532 shares.

87DSBJ Annual Report 2025

2. Changes in the total number of shares shareholding structure and structure of assets and liabilities of

the Company

□ Applicable□ N/A

3. Outstanding employee shares

□ Applicable□ N/A

III. Shareholders and Actual Controllers

1. Number of shareholders and shareholding structure of the Company

In Shares

Total

Total number number of

of ordinary preferred

Total number of preferred

Total shareholders shareholders

shareholders whose voting

number of at the end of whose voting

rights had been restituted at

ordinary the month rights had

the end of the month

shareholders 81673 immediately 108519 been 0 0

immediately preceding the

at the end of preceding the restituted at

disclosure date of this

the reporting disclosure the end of

Annual Report (if any)

period date of this the reporting

(Note 8)

Annual period (if

Report any) (Note

8)

Shareholding by shareholders holding more than 5% of the shares or the top 10 shareholders (excluding the shares lent via refinancing)

No. of Pledge attachment or freeze

Changes in

shares held

shareholding No. of non- No. of

Name of Status of Shareholding at the end of

during the tradable tradable

shareholder shareholder percentage the Status of

reporting shares held shares held Number

reporting shares

period

period

Domestic

YUAN

natural 16.53% 302781254 100055058 252224705 50556549 Pledge 104828000

Yonggang

person

Domestic

YUAN

natural 13.51% 247526917 25138764 191929879 55597038 Pledge 56883800

Yongfeng

person

Domestic

YUAN

natural 3.21% 58796052 58796052 N/A

Fugen

person

Hong Kong

Securities

Foreign

Clearing 2.26% 41396650 41396650 N/A

corporation

Company

Limited

China Life

Insurance

Company Others 1.25% 22974707 22974707 N/A

Ltd. –

Traditional –

88DSBJ Annual Report 2025

General

Insurance

Product –

005L –

CT001

Shanghai

New China

Life

Insurance

Company

Limited –

Traditional –

Others 1.13% 20660374 20660374 N/A

General

Insurance

Product –

018L –

CT001

Shenzhen

Industrial

and

Commercial

Bank of

China

Limited –

Huatai-

Others 1.12% 20451440 20451440 N/A

PineBridge

CSI 300

Exchange-

Traded Index

Securities

Investment

Fund

China

Merchants

Bank Co.Ltd. –

Ruiyuan

Growth Others 1.07% 19570610 19570610 N/A

Value

Hybrid

Securities

Investment

Fund

New China

Life

Insurance

Company

Limited –

Participating Others 0.89% 16293622 16293622 N/A

– Individual

Participating

– 018L –

FH002

Shenzhen

China

Construction

Others 0.82% 15109347 15109347 N/A

Bank

Corporation

89DSBJ Annual Report 2025

– E-Fund

CSI 300

Exchange-

Traded Index

Sponsored

Securities

Investment

Fund

Strategic investors or

general corporations

becoming the top 10

N/A

shareholders as a result of

rights issue (if any) (Note

3)

Among the shareholders listed above YUAN Yonggang and YUAN Yongfeng are sons of YUAN Fugen

Affiliates or concert parties and YUAN Yongfeng is the elder brother of YUAN Yonggang. YUAN Fugen YUAN Yongfeng and

among the shareholders YUAN Yonggang are our actual controllers. We are not aware whether there are affiliates or concert

listed above parties within the meaning of the Administrative Measures for the Takeover of Listed Companies among

other shareholders listed above.Delegation or waiver of

voting rights or ownership

N/A

of voting rights by or to the

shareholders listed above

Special explanation about

any dedicated account for

repurchase opened by any N/A

top 10 shareholder (if any)

(Note 10)

Shareholding by the top 10 holders of tradable shares (excluding the shares lent via refinancing or under executive lock-up)

Type and number of shares

Name of shareholder No. of tradable shares held at the end of the reporting period Type of

Number

shares

RMB-

denominated

YUAN Fugen 58796052 58796052

ordinary

share

RMB-

YUAN Yongfeng 55597038

denominated 55597038

ordinary

share

RMB-

YUAN Yonggang 50556549

denominated 50556549

ordinary

share

RMB-

Hong Kong Securities denominated

4139665041396650

Clearing Company Limited ordinary

share

China Life Insurance

RMB-

Company Ltd. – Traditional

denominated

– General Insurance 22974707 22974707

ordinary

Product – 005L – CT001

share

Shanghai

New China Life Insurance RMB-

2066037420660374

Company Limited – denominated

90DSBJ Annual Report 2025

Traditional – General ordinary

Insurance Product – 018L – share

CT001 Shenzhen

Industrial and Commercial

RMB-

Bank of China Limited –

denominated

Huatai-PineBridge CSI 300 20451440 20451440

ordinary

Exchange-Traded Index

share

Securities Investment Fund

China Merchants Bank Co. RMB-

Ltd. – Ruiyuan Growth denominated

1957061019570610

Value Hybrid Securities ordinary

Investment Fund share

New China Life Insurance

RMB-

Company Limited –

denominated

Participating – Individual 16293622 16293622

ordinary

Participating-018L-FH002

share

Shenzhen

China Construction Bank

RMB-

Corporation – E-Fund CSI

denominated

300 Exchange-Traded 15109347 15109347

ordinary

Index Sponsored Securities

share

Investment Fund

Affiliates or concert parties

Among the shareholders listed above YUAN Yonggang and YUAN Yongfeng are sons of YUAN Fugen

among the top 10 holders of

and YUAN Yongfeng is the elder brother of YUAN Yonggang. YUAN Fugen YUAN Yongfeng and

tradable shares and among

YUAN Yonggang are our actual controllers. We are not aware whether there are affiliates or concert

the top 10 holders of

parties within the meaning of the Administrative Measures for the Takeover of Listed Companies among

tradable shares and the top

other shareholders listed above.

10 shareholders

Securities margin trading

conducted by the top 10

N/A

ordinary shareholders (if

any) (Note 4)

Share lending by shareholders holding more than 5% of the shares the top 10 shareholders and the top 10 holders of tradable

shares via refinancing

□ Applicable□ N/A

Changes in the top 10 shareholders and the top 10 holders of tradable shares compared with the previous period due to share

lending under refinancing/repayment

□ Applicable□ N/A

Whether the top 10 ordinary shareholders or the top 10 holders of tradable shares conducted any transaction under the repurchase

agreement during the reporting period

□ Yes□ No

No top 10 ordinary shareholder or top 10 holder of tradable shares has conducted any transaction under the repurchase agreement

during the reporting period.

2. Controlling shareholders of the Company

Nature of controlling shareholders: Natural persons

Type of controlling shareholders: Natural persons

Name of controlling shareholder Nationality Whether or not having obtainedresidency in any other country or region

YUAN Yonggang Hong Kong China Yes

YUAN Yongfeng China No

91DSBJ Annual Report 2025

YUAN Fugen China No

Main occupation and title YUAN Yonggang is our Chairman and YUAN Yongfeng is our director and GeneralManager.Shares held in other domestic or

foreign listed companies controlled

or invested by the controlling YUAN Yonggang and his wife WANG Wenjuan are the actual controllers of Landun

shareholders during the reporting Photoelectron (300862) and Anfu Technology (603031).period

Change in the controlling shareholders during the reporting period

□ Applicable□ N/A

There has been no change in our controlling shareholders during the reporting period.

3. Actual controllers of the Company and their concert parties

Nature of actual controllers: Domestic natural persons overseas natural persons

Type of actual controllers: Natural persons

Whether or not having

Relationship with the actual

Name of the actual controller Nationality obtained residency in any

controller

other country or region

YUAN Yonggang Himself Hong Kong China Yes

YUAN Yongfeng Himself China No

YUAN Fugen Himself China No

See “III. Shareholders and Actual Controllers – 2. Controlling shareholders of the Company”

Main occupation and title

above.Domestic or foreign listed

companies that have been

See “III. Shareholders and Actual Controllers – 2. Controlling shareholders of the Company”

controlled by the actual

above.controllers in the past 10

years

Change in the actual controllers during the reporting period

□ Applicable□ N/A

There has been no change in our actual controllers during the reporting period.Diagram of ownership and control relationship between the Company and its actual controllers:

Concert parties

YUAN Yonggang YUAN Yongfeng YUAN Fugen

(16.53% shares) (13.51% shares) (3.21% shares)

Suzhou Dongshan Precision Manufacturing Co. Ltd.

92DSBJ Annual Report 2025

The actual controllers control the Company through trust or other assets management methods

□ Applicable□ N/A

4. Whether the controlling shareholder or largest shareholder of the Company and its concert parties

have pledged more than 80% of shares held by them in the Company in aggregate

□ Applicable□ N/A

5. Other corporate shareholders owning over 10% of shares in the Company

□ Applicable□ N/A

6. Restrictions on the sale of shares by the controlling shareholder actual controller parties involved in

restructuring and other covenantors

□ Applicable□ N/A

IV. Share Repurchases Effected during the Reporting Period

Progress of share repurchases

□ Applicable □ N/A

Amount of

Number of Ratio of shares

shares

Disclosure shares Use of Number of repurchased to the

proposed to Proposed

date of the proposed to % of total shares shares target shares under

be period of

repurchase be share capital repurchase already the equity

repurchased repurchase

plan repurchased d repurchased incentive plan (if

(in RMB

(share) any)

0’000)

12 months

following the

Employee

date when the

stock

share

April 10 2050000- 0.12%- ownership

10000-20000 repurchase 4202200

2025 4100000 0.24% plan or

plan was

equity

approved by

incentive

the Board of

Directors

Progress of sale or repurchase of shares by call auction

□ Applicable□ N/A

V. Preferred Shares

□ Applicable□ N/A

We did not have any preferred share during the reporting period.

93DSBJ Annual Report 2025

Section VII Bonds

□ Applicable□ N/A

94DSBJ Annual Report 2025

Section VIII Financial Report

I. Auditor’s Report

Audit opinion Standard unqualified opinion

Signing date of the auditor’s report April 20 2026

Auditor Pan-China Certified Public Accountants LLP

Document number of the auditor’s report PCCPA Audit [2026] No. 5-37

Name of certified public accountants ZHANG Yang and FU Zhenlong

Text

To shareholders of Suzhou Dongshan Precision Manufacturing Co. Ltd.I. Opinion

We have audited the financial statements of Suzhou Dongshan Precision Manufacturing Co. Ltd. (the “Company”) which

comprise the consolidated and standalone balance sheets as of December 31 2025 consolidated and standalone income statements

consolidated and standalone cash flow statements and consolidated and standalone statements of changes in owners’ equity for the

year ended December 31 2025 and notes to the financial statements.In our opinion the accompanying financial statements are prepared and present fairly in all material respects the

consolidated and standalone financial positions of the Company as of December 31 2025 and its consolidated and standalone

results of operations and cash flows for the year ended December 31 2025 in accordance with the Accounting Standards for

Business Enterprises (the “CASBEs”).II. Basis for opinion

We conducted our audit in accordance with the Auditing Standards for Certified Public Accountants of China. Ourresponsibilities under those standards are further described in “Responsibilities of the certified public accountants for the audit ofthe financial statements” below. We are independent of the Company in accordance with the China Independence Standard for

Certified Public Accountants No. 1 – Independence Requirements for Financial Statements Audit and Review Business and the

Code of Ethics for Certified Public Accountants of China and have fulfilled our other ethical responsibilities. We followed the

independence requirements for the audit of public interest entities. We believe that the audit evidence we have obtained is

sufficient and appropriate to provide a basis for our opinion.III. Key audit matters

Key audit matters are those matters that in our professional judgment were of most significance in our audit of the

financial statements for the current period. These matters were addressed in the context of our audit of the financial statements as a

whole and in forming our opinion thereon and we do not provide a separate opinion on these matters.(I) Revenue recognition

1. Description

See Notes III(XXIV) and V(II)1 to the financial statements for details.The operating revenue of the Company was primarily generated from the sale of electronic circuits optical modules

(including optical chips) precision components photoelectric display modules and other products which amounted to RMB

40124858800 in 2025.

95DSBJ Annual Report 2025

Since operating revenue is a key performance indicator of the Company and there is an inherent risk that the management

of the Company (the “Management”) may attempt to achieve the specific objectives or expectations through improper revenue

recognition we identified revenue recognition as a critical audit matter.

2. Audit response

Our audit procedures related to revenue recognition included the following among others:

(1) Obtained an understanding of the key internal controls related to revenue recognition assessed the design of such

controls determined whether such controls have been implemented and tested the effectiveness of the relevant internal controls;

(2) Examined the sales contracts obtained an understanding of the main contract terms and conditions and assessed the

appropriateness of the method of revenue recognition;

(3) With respect to the revenue from domestic sales examined on a sample basis the sales contracts sales invoices delivery

orders delivery notes and other supporting documents; with respect to the revenue from export obtained the relevant information

from the China Electronic Port checked the same against the book records kept by the Company and examined on a sample basis

the sales contracts sales invoices delivery orders export declaration forms bills of lading and other supporting documents;

(4) Analyzed the operating revenues and gross margin by month product and customer identified major or abnormal

fluctuations and found out the causes;

(5) With respect to accounts receivable confirmation selected sampled items to confirm the sales amounts via confirmation

letters;

(6) Conducted cut-off tests on the operating revenues recognized around the balance sheet date to check whether the

operating revenues were recognized in the proper period; and

(7) Examined whether the information related to operating revenues has been properly presented in the financial statements.

(II) Net realizable value of inventories

1. Description

See Notes III(XII) and V(I)8 to the financial statements for details.As of December 31 2025 the Company’s book balance of inventories was RMB 10178540500 inventory provision was

RMB 1249596300 and carrying value of inventories was RMB 8928944200.Inventories are measured at the lower of the cost and net realizable value. The Management determines the net realizable

value according to the estimated selling price less the estimated cost of completion estimated selling expenses and related taxes.Due to the significant amount of inventories and the significant management judgment involved in determining the net realizable

values of inventories we identified the net realizable values of inventories as a critical audit matter.

2. Audit response

Our audit procedures related to the net realizable values of inventories included the following among others:

(1) Obtained an understanding of the key internal controls related to the net realizable values of inventories assessed the

design of such controls determined whether they have been implemented and tested the effectiveness of the relevant internal

controls;

(2) With respect to the net realizable value of inventories estimated by the Management in prior years reviewed the relevant

results or subsequent re-estimates made by the Management;

(3) Selected items to assess the reasonableness of the estimated selling prices of inventories so as to verify whether the

estimated selling prices were consistent with the prices on sales contracts sales prices on the market historical data etc.;

(4) Evaluated the reasonableness of the estimation made by the Management regarding the costs selling expenses and

relevant taxes before the inventories were completed;

(5) Tested the accuracy of the calculation of the net realizable value of inventories made by the Management;

(6) With reference to stock counting of inventories under supervision identified inventories that were long-aged outdated

decreased in production subject to fluctuation in production costs or selling prices or experienced changes in technologies or

96DSBJ Annual Report 2025

market demands and assessed the reasonableness of the estimation of the net realizable value of inventories made by the

Management; and

(7) Examined whether the information related to the net realizable value of inventories has been properly presented in the

financial statements.(III) Goodwill impairment

1. Description

See Notes III(XIX) and V(I)19 to the financial statements for details.As of December 31 2025 the Company’s original value of goodwill was RMB 5038071300 allowance for goodwill

impairment was RMB 268811900 and carrying value of goodwill was RMB 4769259400.The Management assesses the goodwill for impairment together with the relevant asset group or combination of asset

groups whose recoverable amount is determined according to the present value of its estimated future cash flows. Due to the

significant amount of goodwill and the goodwill impairment assessment involving significant management judgment we

identified goodwill impairment as a critical audit matter.

2. Audit response

Our audit procedures related to goodwill impairment included the following among others:

(1) Obtained an understanding of the key internal controls related to goodwill impairment assessed the design of such

controls determined whether they have been implemented and tested the effectiveness of the relevant internal controls;

(2) With respect to the present value of future cash flows estimated by the Management in prior years reviewed the relevant

results or subsequent re-estimates made by the Management;

(3) Assessed the competencies professional quality and objectivity of the external appraisers engaged by the Management;

(4) Assessed the appropriateness and consistency of the approaches adopted by the Management in impairment tests;

(5) Assessed the appropriateness of the material assumptions used by the Management in impairment tests and whether the

relevant assumptions were consistent with the overall economic environment industrial conditions operating situations historical

experience business plans approved budgets and other assumptions used by the Management in relation to the financial

statements;

(6) Tested the appropriateness relevance and reliability of the data used by the Management in impairment tests and

reviewed the consistency of inputs in impairment tests;

(7) Tested the accuracy of the calculation of the present value of estimated future cash flows made by the Management; and

(8) Examined whether the information related to goodwill impairment has been properly presented in the financial

statements.IV. Other information

The Management is responsible for the other information. The other information comprises the information included in the

Annual Report but does not include the financial statements and our auditor’s report.Our opinion in the financial statements does not cover the other information and we will not express any form of assurance

conclusions thereon.In connection with our audit of the financial statements our responsibility is to read the other information and in doing so

consider whether the other information is materially inconsistent with the financial statements or our knowledge obtained in the

audit or otherwise appears to be materially misstated.If we conclude that there is a material misstatement therein we are required to communicate such matter. We have nothing

to report in this regard.V. Responsibilities of the Management and those charged with governance for the financial statements

97DSBJ Annual Report 2025

The Management is responsible for the preparation and fair presentation of the financial statements in accordance with the

CASBEs and the design implementation and maintenance of internal controls that are necessary to enable the preparation of

financial statements that are free from material misstatement whether due to fraud or error.In preparing the financial statements the Management is responsible for assessing the Company’s ability to continue as a

going concern disclosing (as applicable) matters relating to going concern and using the going concern basis of accounting unless

the Management either intends to liquidate the Company or to cease operations or has no realistic alternative but to do so.Those charged with governance of the Company are responsible for overseeing the financial reporting process of the

Company.VI. Responsibilities of the certified public accountants for the audit of the financial statements

Our objectives are to obtain reasonable assurance about whether the financial statements as a whole are free from material

misstatement whether due to fraud or error and to issue an auditor’s report that includes our opinion. Reasonable assurance is a

high level of assurance but is not a guarantee that an audit conducted in accordance with the audit standards will always detect a

material misstatement when it exists. Misstatements can arise from fraud or error and are considered material if individually or in

the aggregate they could reasonably be expected to influence the economic decisions of users taken on the basis of these financial

statements.As part of an audit in accordance with the audit standards we exercise professional judgment and maintain professional

skepticism throughout the audit. We also:

(I) Identify and assess the risks of material misstatement of the financial statements whether due to fraud or error design

and perform audit procedures responsive to those risks and obtain audit evidence that is sufficient and appropriate to provide a

basis for our opinion. The risk of not detecting a material misstatement resulting from fraud is higher than for one resulting from

error as fraud may involve collusion forgery intentional omissions misrepresentations or the override of internal control;

(II) Obtain an understanding of internal control relevant to the audit in order to design audit procedures that are appropriate

in the circumstances but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control;

(III) Evaluate the appropriateness of accounting policies used and the reasonableness of accounting estimates and related

disclosures made by the Management;

(IV) Conclude on the appropriateness of the Management’s use of the going concern basis of accounting and based on the

audit evidence obtained whether a material uncertainty exists related to events or conditions that may cast significant doubts on

the Company’s ability to continue as a going concern. If we conclude that a material uncertainty exists we are required by the

audit standards to draw attention in our auditor’s report to the related disclosures in the financial statements or if such disclosures

are inadequate to modify our opinion. Our conclusions are based on the audit evidence obtained up to the date of our auditor’s

report. However future events or conditions may cause the Company to cease to continue as a going concern;

(V) Evaluate the overall presentation structure and content of the financial statements and whether the financial statements

represent the underlying transactions and events in a manner that achieves fair presentation; and

(VI) Obtain sufficient and appropriate audit evidence regarding the financial information of the entities or business activities

within the Company to express an opinion in the financial statements. We are responsible for the direction supervision and

performance of the audit of the Group and solely responsible for our audit opinion.We communicate with those charged with governance regarding among other matters the planned scope and timing of the

audit and significant audit findings including any noteworthy deficiencies in internal control that we identify during our audit.We also provide those charged with governance with a statement that we have complied with relevant ethical requirements

regarding independence and communicate with them all relationships and other matters that may reasonably be thought to bear on

our independence and where applicable related safeguards.From the matters communicated with those charged with governance we determine those matters that were of most

significance in the audit of the financial statements of the current period and are therefore the critical audit matters. We describe

98DSBJ Annual Report 2025

these matters in our auditor’s report unless law or regulation precludes public disclosure about the matter or when in extremely

rare circumstances we determine that a matter should not be communicated in our auditor’s report because the adverse

consequences of doing so would reasonably be expected to outweigh the public interest benefits of such communication.II. Financial statements

The amounts in the statements contained in the notes to the financial statements are presented in RMB

1. Consolidated balance sheet

Prepared by: Suzhou Dongshan Precision Manufacturing Co. Ltd.December 31 2025

In RMB

Item Closing balance Opening balance

Current assets:

Cash and bank balances 7650283509.10 7172331252.29

Settlement deposit

Loans to banks and other financial

institutions

Financial assets held for trading 201553860.61 78144342.95

Derivative financial assets

Notes receivable 9037098.60

Accounts receivable 9792745060.06 7663458025.49

Accounts receivable financing 285277607.54 252612009.41

Advances to suppliers 274265688.35 93875465.69

Premiums receivable

Reinsurance accounts receivable

Reinsurance contract reserves

receivable

Other receivables 165859090.82 45836662.39

Incl.: Interest receivable

Dividends receivable

Financial assets held under resale

agreements

Inventories 8928944182.01 6152655607.85

Incl.: Data resources

Contract assets

Assets held for sale

Non-current assets due within one year

Other current assets 1328586793.26 1209842283.99

Total current assets 28627515791.75 22677792748.66

Non-current assets:

Loans and advances to clients

Debt investments

Other debt investments

Long-term receivables 356797043.79 30000000.00

Long-term equity investment 126566432.55 155008795.68

99DSBJ Annual Report 2025

Investments in other equity instruments 442976297.74 333657110.00

Other non-current financial assets

Investment properties 142555461.11 781129.10

Fixed assets 16586762231.15 13595191232.40

Construction in progress 2345985416.22 2575154318.35

Productive biological assets

Oil and gas assets

Right-of-use assets 2209353814.61 1313776299.13

Intangible assets 1321067216.43 962594133.34

Incl.: Data resources

Development expenses 41694639.16

Incl.: Data resources

Goodwill 4769259362.01 2119612220.47

Long-term deferred expenses 990698521.69 903599713.89

Deferred tax assets 829762594.06 834450612.08

Other non-current assets 1459542272.71 512554751.37

Total non-current assets 31623021303.23 23336380315.81

Total assets 60250537094.98 46014173064.47

Current liabilities:

Short-term borrowings 8011474049.03 4810954130.69

Borrowings from the Central Bank

Borrowings from banks and other

financial institutions

Financial liabilities held for trading 46545937.17 82922390.17

Derivative financial liabilities

Notes payable 1002812950.68 935581272.50

Accounts payable 13043136687.34 9659268990.43

Advances from clients

Contract liabilities 474660658.17 122562435.14

Financial assets sold under repurchase

agreements

Deposits from clients and other banks

Funds received as stock broker

Funds received as underwriter of

securities

Employee benefits payable 995231432.74 597573087.02

Taxes payable 641337262.33 395772127.76

Other payables 705336813.22 94163223.90

Incl.: Interest payable

Dividends payable

Fees and commissions payable

Reinsurance accounts payable

Liabilities held for sale

Non-current liabilities due within one

year 3488303627.95 2458987301.36

Other current liabilities 43838129.08 5190838.21

Total current liabilities 28452677547.71 19162975797.18

Non-current liabilities:

100DSBJ Annual Report 2025

Provision for insurance contracts

Long-term borrowings 6375079464.54 5289187891.33

Bonds payable

Incl.: Preferred shares

Perpetual bonds

Lease liabilities 1790064820.73 1351518837.18

Long-term payables 49434786.31

Long-term employee benefits payable 142470448.33

Provisions 263756502.85 58258872.92

Deferred income 889843133.49 585933889.89

Deferred tax liabilities 634806937.54 630759756.43

Other non-current liabilities

Total non-current liabilities 10096021307.48 7965094034.06

Total liabilities 38548698855.19 27128069831.24

Owners’ equity:

Share capital 1831607532.00 1705913710.00

Other equity instruments

Incl.: Preferred shares

Perpetual bonds

Capital reserve 9257892537.77 7992284435.83

Less: Treasury shares 175076133.79 74991696.79

Other comprehensive income -240832682.74 -317104374.08

Special reserve

Surplus reserve 249150887.74 232241216.54

General risk reserve

Retained profits 10538405831.61 9288043977.88

Total owners’ equity attributable to the

parent company 21461147972.59 18826387269.38

Minority interests 240690267.20 59715963.85

Total owners’ equity 21701838239.79 18886103233.23

Total liabilities and owners’ equity 60250537094.98 46014173064.47

Legal Representative: YUAN Yonggang CFO: WANG Xu Accounting Supervisor: ZHU Deguang

2. Standalone balance sheet

In RMB

Item Closing balance Opening balance

Current assets:

Cash and bank balances 1160294626.93 1090000348.49

Financial assets held for trading 219600.00

Derivative financial assets

Notes receivable

Accounts receivable 2968231046.34 3143492614.37

Accounts receivable financing 97221485.41 18920385.63

Advances to suppliers 31232780.09 39423778.51

Other receivables 6264171897.96 5969486558.66

Incl.: Interest receivable

Dividends receivable 1430532996.21 1495758008.53

Inventories 674472213.11 986847112.47

Incl.: Data resources

101DSBJ Annual Report 2025

Contract assets

Assets held for sale

Non-current assets due within one year

Other current assets 63612410.64 71972689.92

Total current assets 11259456060.48 11320143488.05

Non-current assets:

Debt investments

Other debt investments

Long-term receivables 76509581.77 30000000.00

Long-term equity investment 10272197298.16 9627857599.31

Investments in other equity instruments 233620897.88 221322110.00

Other non-current financial assets 725589519.73

Investment properties

Fixed assets 746080950.55 775223315.27

Construction in progress 116200639.43 148492748.83

Productive biological assets

Oil and gas assets

Right-of-use assets 652300.04 2609200.64

Intangible assets 29117476.28 61524955.69

Incl.: Data resources

Development expenses

Incl.: Data resources

Goodwill

Long-term deferred expenses 62191879.79 89330126.49

Deferred tax assets 90067212.74 36909520.17

Other non-current assets 470817876.53 70661066.13

Total non-current assets 12823045632.90 11063930642.53

Total assets 24082501693.38 22384074130.58

Current liabilities:

Short-term borrowings 1891299933.33 2294208162.79

Financial liabilities held for trading

Derivative financial liabilities

Notes payable 794515542.20 585570169.87

Accounts payable 1713486270.10 1389942826.35

Advances from clients

Contract liabilities 24694026.25 18959880.87

Employee benefits payable 21209233.64 30758082.10

Taxes payable 2981563.32 3170402.36

Other payables 5522584357.60 5101960753.88

Incl.: Interest payable

Dividends payable

Liabilities held for sale

Non-current liabilities due within one

year 1491016892.43 799561489.98

Other current liabilities 4002965.31 1508828.34

Total current liabilities 11465790784.18 10225640596.54

Non-current liabilities:

Long-term borrowings 1356851593.72 2251616980.54

102DSBJ Annual Report 2025

Bonds payable

Incl.: Preferred shares

Perpetual bonds

Lease liabilities 861053.29

Long-term payables

Long-term employee benefits payable

Provisions 1284160.56 1125097.32

Deferred income 16537828.64 16473333.57

Deferred tax liabilities 534830.01

Other non-current liabilities

Total non-current liabilities 1374673582.92 2270611294.73

Total liabilities 12840464367.10 12496251891.27

Owners’ equity:

Share capital 1831607532.00 1705913710.00

Other equity instruments

Incl.: Preferred shares

Perpetual bonds

Capital reserve 9156573425.73 7890754703.00

Less: Treasury shares 175076133.79 74991696.79

Other comprehensive income 12485447.88

Special reserve

Surplus reserve 249150887.74 232241216.54

Retained profits 167296166.72 133904306.56

Total owners’ equity 11242037326.28 9887822239.31

Total liabilities and owners’ equity 24082501693.38 22384074130.58

3. Consolidated income statement

In RMB

Item 2025 2024

I. Total operating revenue 40124858839.52 36770374347.58

Incl.: Operating revenue 40124858839.52 36770374347.58

Interest income

Premiums earned

Fee and commission income

II. Total operating costs 38148363423.73 34556547462.54

Incl.: Operating cost 34472669748.77 31615008629.39

Interest expenses

Fee and commission expenses

Surrenders

Net payments for insurance

claims

Net insurance contract reserves

Policyholder dividends

Reinsurance expenses

Taxes and surcharges 136302303.72 167042863.87

Selling expenses 445146409.06 454017787.21

Administrative expenses 1414555307.76 1112402085.44

R&D expenses 1417226723.87 1266812544.23

Financial expenses 262462930.55 -58736447.60

103DSBJ Annual Report 2025

Incl.: Interest expenses 443476258.00 438226327.56

Interest income 200834090.18 243071834.40

Add: Other income 362767797.18 523255832.55

Investment income (loss expressed

with “-”) -9282244.32 -22034772.62

Incl.: Investment income

from associates and joint ventures -921784.97 -398084.25

Gain on derecognition

of financial assets at amortized cost

Exchange gain (loss expressed

with “-”)

Net exposure hedging income

(loss expressed with “-”)

Gain on changes in fair value (loss

expressed with “-”) 62022355.11 -17898094.22

Credit impairment loss (loss

expressed with “-”) -63742824.35 -44109673.59

Impairment loss on assets (loss

expressed with “-”) -687900170.84 -938687855.79

Gain on disposal of assets (loss

expressed with “-”) -371479536.46 -234749852.86

III. Operating profit (loss expressed with

“-”)1268880792.111479602468.51

Add: Non-operating revenue 478428588.60 9260396.63

Less: Non-operating expenses 56892612.84 21151029.02

IV. Profit before tax (loss expressed with

“-”)1690416767.871467711836.12

Less: Income tax expenses 297449230.14 382650922.07

V. Net profit (loss expressed with “-”) 1392967537.73 1085060914.05

(I) Classified by continuity of operation

1. Net profit from continuing

operations (loss expressed with “-”) 1392967537.73 1085060914.05

2. Net profit from discontinued

operations (loss expressed with “-”)

(II) Classified by attribution

1. Net profit attributable to owners of

the parent company 1386066705.56 1085641847.89

2. Profit attributable to minority

interests 6900832.17 -580933.84

VI. Other comprehensive income net

after tax 76271691.34 47560204.56

Other comprehensive income

attributable to owners of the parent 76271691.34 47560204.56

company net after tax

(I) Other comprehensive income that

cannot be reclassified to profit or loss 45801392.07

1. Changes arising from

remeasurement of defined benefit plans 2085004.19

2. Other comprehensive income

that cannot be reclassified to profit or loss

under the equity method

3. Change in fair value of

investments in other equity instruments 43716387.88

4. Change in fair value of the

corporation’s credit risk

5. Others

(II) Other comprehensive income

that will be reclassified to profit or loss 30470299.27 47560204.56

1. Other comprehensive income

104DSBJ Annual Report 2025

that can be reclassified to profit or loss

under the equity method

2. Change in fair value of other

debt investments

3. Financial assets reclassified to

other comprehensive income

4. Provision for credit impairment

of other debt investments

5. Reserves for cash flow hedge 40974107.22 13125520.72

6. Differences in translation of

foreign currency financial statements -10503807.95 34434683.84

7. Others

Other comprehensive income

attributable to minority interests net after

tax

VII. Total comprehensive income 1469239229.07 1132621118.61

Total comprehensive income

attributable to owners of the parent 1462338396.90 1133202052.45

company

Total comprehensive income

attributable to minority interests 6900832.17 -580933.84

VIII. Earnings per share

(I) Basic earnings per share 0.79 0.64

(II) Diluted earnings per share 0.79 0.64

Legal Representative: YUAN Yonggang CFO: WANG Xu Accounting Supervisor: ZHU Deguang

4. Standalone income statement

In RMB

Item 2025 2024

I. Operating revenue 4636461984.31 4750880680.91

Less: Operating cost 4035985624.06 4071450528.91

Taxes and surcharges 12619064.43 20509211.02

Selling expenses 28361890.11 41590505.69

Administrative expenses 271817883.08 267655862.76

R&D expenses 204659472.31 223564889.84

Financial expenses 212763047.77 161027919.44

Incl.: Interest expenses 240892696.42 322381094.38

Interest income 54364364.00 52566198.94

Add: Other income 7559769.61 33990328.28

Investment income (loss

expressed with “-”) 240750766.70 593170019.98

Incl.: Investment income from

associates and joint ventures 434578.85 5584848.30

Gain on derecognition of

financial assets at amortized cost (loss

expressed with “-”)

Net exposure hedging income

(loss expressed with “-”)

Gain on changes in fair value

(loss expressed with “-”) 165589519.73 -13243914.03

Credit impairment loss (loss

expressed with “-”) -15282282.79 17367223.10

Impairment loss on assets (loss

expressed with “-”) -68023117.47 -27906250.25

Gain on disposal of assets (loss -78700426.61 -1030988.54

105DSBJ Annual Report 2025

expressed with “-”)II. Operating profit (loss expressed with “-”)122149231.72567428181.79

Add: Non-operating revenue 459385.53 66579410.21

Less: Non-operating expenses 7237367.84 7823757.31

III. Profit before tax (loss expressed with

“-”)115371249.41626183834.69

Less: Income tax expenses -53725462.58 152440366.64

IV. Net profit (loss expressed with “-”) 169096711.99 473743468.05

(I) Net profit from continuing

operations (loss expressed with “-”) 169096711.99 473743468.05

(II) Net profit from discontinued

operations (loss expressed with “-”)

V. Other comprehensive income net after

tax 12485447.88

(I) Other comprehensive income that

cannot be reclassified to profit or loss 12298787.88

1. Changes arising from

remeasurement of defined benefit plans

2. Other comprehensive income

that cannot be reclassified to profit or loss

under the equity method

3. Change in fair value of

investments in other equity instruments 12298787.88

4. Change in fair value of the

corporation’s credit risk

5. Others

(II) Other comprehensive income

that will be reclassified to profit or loss 186660.00

1. Other comprehensive income

that can be reclassified to profit or loss

under the equity method

2. Change in fair value of other

debt investments

3. Financial assets reclassified to

other comprehensive income

4. Provision for credit impairment

of other debt investments

5. Reserves for cash flow hedge 186660.00

6. Differences in translation of

foreign currency financial statements

7. Others

VI. Total comprehensive income 181582159.87 473743468.05

VII. Earnings per share

(I) Basic earnings per share

(II) Diluted earnings per share

5. Consolidated cash flow statement

In RMB

Item 2025 2024

I. Cash flows from operating activities:

Proceeds from sale of goods and

rendering of services 40268971755.81 36888162952.22

Net increase in deposits from clients

and other banks

Net increase in borrowings from the

Central Bank

Net increase in borrowings from other

financial institutions

106DSBJ Annual Report 2025

Proceeds from premiums under prior

insurance contracts

Net proceeds from reinsurance business

Net increase in insured’s deposits and

investments

Proceeds from interest fees and

commissions

Net increase in borrowings from banks

and other financial institutions

Net increase in receipts under

repurchase transactions

Net cash received as stock broker

Tax refunds received 1312580854.55 1110541496.13

Other cash receipts related to operating

activities 1193357020.32 1080208971.62

Cash provided by operating activities 42774909630.68 39078913419.97

Payments for purchase of goods and

receipt of services 29701823618.56 27320456007.82

Net increase in loans and advances

from clients

Net increase in deposits in the Central

Bank and other banks

Payment of claims under prior

insurance contracts

Net increase in loans to banks and other

financial institutions

Payment of interest fees and

commissions

Payment of policyholder dividends

Payments to and for employees 5650852540.20 4844071324.22

Taxes paid 697615390.76 704488780.75

Other cash payments related to

operating activities 1417476334.17 1223878618.70

Cash used in operating activities 37467767883.69 34092894731.49

Net cash flows from operating activities 5307141746.99 4986018688.48

II. Cash flows from investing activities:

Proceeds from disposal of investments 108814660.00 331862195.88

Proceeds from return on investments 19291611.41 665777.96

Net proceeds from the disposal of fixed

assets intangible assets and other long- 90863187.17 173295074.50

term assets

Net proceeds from the disposal of

subsidiaries and other business entities 0.00 39159620.71

Other cash receipts related to investing

activities 1789785359.77 920378244.31

Cash provided by investing activities 2008754818.35 1465360913.36

Payments for the acquisition of fixed

assets intangible assets and other long- 4383254216.35 3792143747.46

term assets

Payments for investments 1032364101.58 328162771.38

Net increase in mortgage loans

Net payments for the acquisition of

subsidiaries and other business entities 3383277302.46

Other cash payments related to

investing activities 1493051034.81 1438740539.88

Cash used in investing activities 10291946655.20 5559047058.72

Net cash flows from investing activities -8283191836.85 -4093686145.36

III. Cash flows from financing activities:

Proceeds from investors 1391555544.73

107DSBJ Annual Report 2025

Incl.: Proceeds of subsidiaries from

minority shareholders’ investments 43000.00

Cash receipts from borrowings 11196201280.75 9292322928.58

Other cash receipts related to financing

activities 1983927541.61 1013657755.68

Cash provided by financing activities 14571684367.09 10305980684.26

Repayment of borrowings 7723099453.20 9305852934.81

Payment of distribution of dividends

and profits or for interest 438979848.30 789614962.62

Incl.: Dividends and profits distributed

by subsidiaries to minority shareholders

Other cash payments related to

financing activities 2660211054.70 1529880189.66

Cash used in financing activities 10822290356.20 11625348087.09

Net cash flows from financing activities 3749394010.89 -1319367402.83

IV. Effect of exchange rate changes on

cash and cash equivalents -12221677.25 126148223.77

V. Net increase in cash and cash

equivalents 761122243.78 -300886635.94

Add: Opening balance of cash and cash

equivalents 5343600382.37 5644487018.31

VI. Closing balance of cash and cash

equivalents 6104722626.15 5343600382.37

6. Standalone cash flow statement

In RMB

Item 2025 2024

I. Cash flows from operating activities:

Proceeds from sale of goods and

rendering of services 3904328054.01 3087518926.49

Tax refunds received 105357331.49 79327801.50

Other cash receipts related to operating

activities 3811238088.63 5758926751.58

Cash provided by operating activities 7820923474.13 8925773479.57

Payments for purchase of goods and

receipt of services 3282162963.65 2829046533.99

Payments to and for employees 312361955.27 374024194.96

Taxes paid 18939914.52 74184275.05

Other cash payments related to

operating activities 3927477083.94 5022100747.33

Cash used in operating activities 7540941917.38 8299355751.33

Net cash flows from operating activities 279981556.75 626417728.24

II. Cash flows from investing activities:

Proceeds from disposal of investments 295045679.59 52599999.99

Proceeds from return on investments 148297.93 1487814382.67

Net proceeds from the disposal of fixed

assets intangible assets and other long- 2321703.00

term assets

Net proceeds from the disposal of

subsidiaries and other business entities

Other cash receipts related to investing

activities 1680303260.48 348788350.25

Cash provided by investing activities 1975497238.00 1891524435.91

Payments for the acquisition of fixed

assets intangible assets and other long- 124344513.08 178368792.91

term assets

Payments for investments 775163000.00 264999999.99

Net payments for the acquisition of

subsidiaries and other business entities

108DSBJ Annual Report 2025

Other cash payments related to

investing activities 2339633268.53 2145958659.54

Cash used in investing activities 3239140781.61 2589327452.44

Net cash flows from investing activities -1263643543.61 -697803016.53

III. Cash flows from financing activities:

Proceeds from investors 1391512544.73

Cash receipts from borrowings 3131500000.00 3927134206.67

Other cash receipts related to financing

activities 2900541711.39 3092048892.48

Cash provided by financing activities 7423554256.12 7019183099.15

Repayment of borrowings 3733671340.00 4732373761.70

Payment of distribution of dividends

and profits or for interest 246482514.76 406253984.10

Other cash payments related to

financing activities 2285402298.62 1840793177.42

Cash used in financing activities 6265556153.38 6979420923.22

Net cash flows from financing activities 1157998102.74 39762175.93

IV. Effect of exchange rate changes on

cash and cash equivalents 4587103.46 91649076.85

V. Net increase in cash and cash

equivalents 178923219.34 60025964.49

Add: Opening balance of cash and cash

equivalents 538870203.05 478844238.56

VI. Closing balance of cash and cash

equivalents 717793422.39 538870203.05

109DSBJ Annual Report 2025

7. Consolidated statement of changes in owners’ equity

Amount of the current period

In RMB

2025

Owners’ equity attributable to the parent

Other equity

Item instruments

Gen

Other Spec Total

Less: eral Minority

Share Prefer Capital comprehe ial Surplus Retained Oth interests owners’Treasury risk Subtotal

capital Perpered Oth reserve nsive reser reserve profits ers equity

tual shares reser

share ers income ve

bonds ve

s

I. Balance at -

17059137992284749916923224129288043918826387597159618886103

the end of the 3171043

710.00435.836.7916.5477.88269.383.85233.23

previous year 74.08

Add:

Changes in

accounting

policies

Corre

ction of

previous period

errors

Other

s

II. Balance at

-

the beginning 1705913 7992284 7499169 2322412 92880439 18826387 5971596 18886103

3171043

of the current 710.00 435.83 6.79 16.54 77.88 269.38 3.85 233.23

74.08

year

III.Increase/(decre 12569382 1265608 1000844 7627169 1690967 12503618 26347607 1809743 28157350

ase) in the 2.00 101.94 37.00 1.34 1.20 53.73 03.21 03.35 06.56

current period

(decrease

110DSBJ Annual Report 2025

expressed with

“-”)

(I) Total

76271691386066714623383690083214692392

comprehensive

1.3405.5696.90.1729.07

income

(II)

Investment/(div 12569382 1265608 1000844 12912174 1740734 14652909

estment) by 2.00 101.94 37.00 86.94 71.18 58.12

shareholders

1.

Contributions 12569382 1265818 1000844 12914281 12914711

43000.00

from holders of 2.00 722.73 37.00 07.73 07.73

ordinary shares

2.

Contributions

from holders of

other equity

instruments

3. Share-based

payments

recorded in

owners’ equity

-174030417381985

4. Others -210620.79

210620.7971.180.39

(III) - - -

1690967

Distribution of 13570485 11879518 11879518

1.20

profits 1.83 0.63 0.63

-

1. Surplus 1690967

16909671.

reserve 1.20

20

2. General risk

reserve

3. Distributions - - -

to owners 11879518 11879518 11879518

(shareholders) 0.63 0.63 0.63

111DSBJ Annual Report 2025

4. Others

(IV) Internal

transfer of

owners’ equity

1. Transfer of

capital reserve

to (share)

capital

2. Transfer of

surplus reserve

to (share)

capital

3. Make-up of

losses by

surplus reserve

4. Transfer of

changes in

defined benefit

plans to

retained

earnings

5. Transfer of

other

comprehensive

income to

retained

earnings

6. Others

(V) Special

reserve

1. Appropriated

in the current

period

2. Used in the

112DSBJ Annual Report 2025

current period

(VI) Others

IV. Balance at -

18316079257892175076124915081053840521461147240690221701838

the end of the 2408326

532.00537.7733.7987.74831.61972.5967.20239.79

current period 82.74

Amount of the previous period

In RMB

2024

Owners’ equity attributable to the parent

Other equity

Gene

Item instruments Other Spec TotalLess: ral Minority

Share Prefer Capital comprehe ial Surplus Retained Oth owners’Treasury risk Subtotal interests

capital Perpered Oth reserve nsive reser reserve profits ers equity

tual shares reser

share ers income ve

bonds ve

s

I. Balance at the -

170986780637681259068184866890250951814302647329818190356

end of the 7146645

327.00409.7311.3369.73529.05745.5451.72597.26

previous year 78.64

Add:

Changes in

accounting

policies

Corre

ction of

previous period

errors

Other

s

II. Balance at

-

the beginning 1709867 8063768 1259068 1848668 9025095 18143026 473298 18190356

7146645

of the current 327.00 409.73 11.33 69.73 529.05 745.54 51.72 597.26

78.64

year

III. - - - 3975602 4737434 26294844 683360523 123861 695746635

113DSBJ Annual Report 2025

Increase/(decre 3953617. 71483973 5091511 04.56 6.81 8.83 .84 12.13 .97

ase) in the 00 .90 4.54

current period

(decrease

expressed with

“-”)

(I) Total -

475602010856411133202011326211

comprehensive 580933.

4.56847.8952.4518.61

income 84

(II)

------

Investment/(div

3953617.71483973509151124522476.58703730392856.

estment) by

00.904.54369.8723

shareholders

1. Contributions - - - -

2500084

from holders of 26238619 51239465. 587000 57109465.

6.30

ordinary shares .50 80 0.00 80

2. Contributions

from holders of

other equity

instruments

3. Share-based

payments

478369.94478369.94-379.87477990.07

recorded in

owners’ equity

---

26238619.

4. Others 3953617. 45723724 7591596

50

00.340.84

(III) - - -

4737434188374

Distribution of 47269339 425319052 406481626

6.8125.84

profits 9.06 .25 .41

-

1. Surplus 4737434

47374346

reserve 6.81.81

2. General risk

reserve

114DSBJ Annual Report 2025

3. Distributions - -

to owners 42531905 425319052

(shareholders) 2.25 .25

18837418837425.

4. Others

25.8484

(IV) Internal -

3500000

transfer of 35000000

00.00

owners’ equity 0.00

1. Transfer of

capital reserve

to (share)

capital

2. Transfer of

surplus reserve

to (share)

capital

3. Make-up of

losses by

surplus reserve

4. Transfer of

changes in

defined benefit

plans to

retained

earnings

5. Transfer of

other

-

comprehensive 3500000

35000000

income to 00.00

0.00

retained

earnings

6. Others

(V) Special

reserve

1. Appropriated

115DSBJ Annual Report 2025

in the current

period

2. Used in the

current period

(VI) Others

IV. Balance at -

170591379922847499169232241292880431882638759715918886103

the end of the 3171043

710.00435.836.7916.54977.88269.3863.85233.23

current period 74.08

8. Standalone statement of changes in owners’ equity

Amount of the current period

In RMB

2025

Other equity instruments Speci

Item Less: Other al Surplus Retained Other Total owners’

Share capital PerpetuPreferre Other Capital reserve Treasury comprehensi

al reserv reserve profits s equity

d shares s shares ve income

bonds e

I. Balance at the end 1705913710. 7890754703. 74991696.7 232241216. 133904306. 9887822239.3

of the previous year 00 00 9 54 56 1

Add: Changes

in accounting

policies

Correction

of previous period

errors

Others

II. Balance at the

1705913710.7890754703.74991696.7232241216.133904306.9887822239.3

beginning of the

0000954561

current year

III. 125693822.0 1265818722. 100084437. 12485447.8 16909671.2 33391860.1 1354215086.9

Increase/(decrease) 0 73 00 8 0 6 7

116DSBJ Annual Report 2025

in the current period

(decrease expressed

with “-”)

(I) Total

12485447.8169096711.

comprehensive 181582159.87

899

income

(II)

125693822.01265818722.100084437.1291428107.7

Investment/(divestm

073003

ent) by shareholders

1. Contributions

125693822.01265818722.100084437.1291428107.7

from holders of

073003

ordinary shares

2. Contributions

from holders of other

equity instruments

3. Share-based

payments recorded

in owners’ equity

4. Others

-

(III) Distribution of 16909671.2

135704851.-118795180.63

profits 0

83

-

16909671.2

1. Surplus reserve 16909671.2

0

0

2. Distributions to -

owners 118795180. -118795180.63

(shareholders) 63

3. Others

(IV) Internal transfer

of owners’ equity

1. Transfer of capital

reserve to (share)

capital

117DSBJ Annual Report 2025

2. Transfer of

surplus reserve to

(share) capital

3. Make-up of losses

by surplus reserve

4. Transfer of

changes in defined

benefit plans to

retained earnings

5. Transfer of other

comprehensive

income to retained

earnings

6. Others

(V) Special reserve

1. Appropriated in

the current period

2. Used in the

current period

(VI) Others

IV. Balance at the

1831607532.9156573425.175076133.12485447.8249150887.167296166.11242037326.

end of the current

0073798747228

period

Amount of the previous period

In RMB

2024

Other equity instruments Speci

Item Less: Other al Surplus Retained Other Total owners’

Share capital PerpetuPreferre Other Capital reserve Treasury comprehensi

al reserv reserve profits s equity

d shares s shares ve income

bonds e

-

I. Balance at the end 1709867327. 7962239056. 125906811. 184866869. 482854237. 9863920679.

350000000.

of the previous year 00 77 33 73 57 74

00

118DSBJ Annual Report 2025

Add: Changes

in accounting

policies

Correction

of previous period

errors

Others

II. Balance at the -

1709867327.7962239056.125906811.184866869.482854237.9863920679.

beginning of the 350000000.

007733735774

current year 00

III.Increase/(decrease) - -

350000000.47374346.8

in the current period -3953617.00 -71484353.77 50915114.5 348949931. 23901559.57

001

(decrease expressed 4 01

with “-”)

(I) Total

473743468.473743468.0

comprehensive

055

income

(II) -

Investment/(divestm -3953617.00 -71484353.77 50915114.5 -24522856.23

ent) by shareholders 4

1. Contributions

25000846.3

from holders of 26238619.50 1237773.20

0

ordinary shares

2. Contributions

from holders of other

equity instruments

3. Share-based

payments recorded in 477990.07 477990.07

owners’ equity

-

4. Others -3953617.00 -98200963.34 75915960.8 -26238619.50

4

47374346.8--

(III) Distribution of 1 472693399. 425319052.2

119DSBJ Annual Report 2025

profits 06 5

-

47374346.8

1. Surplus reserve 47374346.8

1

1

2. Distributions to - -

owners 425319052. 425319052.2

(shareholders) 25 5

3. Others

-

(IV) Internal transfer 350000000.

350000000.

of owners’ equity 00

00

1. Transfer of capital

reserve to (share)

capital

2. Transfer of surplus

reserve to (share)

capital

3. Make-up of losses

by surplus reserve

4. Transfer of

changes in defined

benefit plans to

retained earnings

5. Transfer of other

-

comprehensive 350000000.

350000000.

income to retained 00

00

earnings

6. Others

(V) Special reserve

1. Appropriated in

the current period

2. Used in the

current period

(VI) Others

120DSBJ Annual Report 2025

IV. Balance at the

1705913710.7890754703.74991696.7232241216.133904306.9887822239.

end of the current

00009545631

period

121DSBJ Annual Report 2025

III. General Information of the Company

Suzhou Dongshan Precision Manufacturing Co. Ltd. (the “Company”) is a company limited by shares converted from

Suzhou Dongshan Sheet Metal Co. Ltd. and registered with the Suzhou Municipal Administration for Industry and Commerce of

Jiangsu on December 24 2007 and is headquartered in Suzhou Jiangsu holds a business license with the unified social credit

code of 91320500703719732P and has a registered capital of RMB 1831607532 divided into 1831607532 shares with a par

value of RMB 1 each share of which 445285809 shares are non-tradable A-shares and 1386321723 shares are tradable A-

shares. The Company’s shares have been listed and traded on the Shenzhen Stock Exchange since April 9 2010.The Company belongs to the computer communication and other electronic equipment manufacturing industry and is

primarily engaged in the provision of core devices for intelligent interconnection including electronic circuits optical modules

(including optical chips) photoelectric display modules precision components etc.These financial statements were approved for release at the 33rd meeting of the 6th Board of Directors on April 20 2026.IV. Basis for Preparation of the Financial Statements

1. Basis for preparation

These financial statements have been prepared on the assumption that the Company is a going concern.

2. Going concern

No event or fact may cast significant doubts on the Company’s ability to remain a going concern within 12 months after the

end of the reporting period.V. Significant Accounting Policies and Accounting Estimates

Note about specific accounting policies and accounting estimates:

Important note: The Company has established specific accounting policies and made specific accounting estimates with

respect to the impairment of financial instruments inventories depreciation of fixed assets construction in progress intangible

assets recognition of revenues and other transactions or events according to its actual production and operational characteristics.

1. Statement of compliance with the Accounting Standards for Business Enterprises (“ASBE”)

The financial statements prepared by the Company conform to the requirements of the ASBE and truly and completely

reflect the Company’s financial condition operating results cash flows and other related information.

2. Accounting period

The Company’s accounting year is from January 1 to December 31 of each calendar year.

3. Operating cycle

The Company has a relatively short operating cycle and determines the liquidity of assets and liabilities on the basis of 12

months.

122DSBJ Annual Report 2025

4. Functional currency

The parent company and domestic subsidiaries adopt RMB as their functional currency. Overseas subsidiaries determine

their functional currencies according to the main economic environment where they conduct operating activities mainly including

USD EUR THB MXN etc. These consolidated financial statements are presented in RMB.

5. Determination and basis for selection of materiality criteria

□ Applicable □ N/A

Item Materiality criteria

Significant dividends receivable aged

Individual amount accounting for over 0.3% of the total assets

over one year

Significant constructions in progress Total investment in an individual project accounting for over 0.3% of the total assets

Significant accounts payable aged over

Individual amount accounting for over 0.3% of the total assets

one year

Significant other payables aged over

Individual amount accounting for over 0.3% of the total assets

one year

Significant contract liabilities aged

Individual amount accounting for over 0.3% of the total assets

over one year

Significant cash flows from investing

Individual amount accounting for over 5% of the total assets

activities

Total assets/total revenue/total profit accounting for over 15% of the group’s total

Significant overseas operating entities

assets/total revenue/total profit

Significant subsidiaries and non- Total assets/total revenue/total profit accounting for over 15% of the group’s total

wholly owned subsidiaries assets/total revenue/total profit

The book value of an individual long-term equity investment accounting for over 15% of

Significant associates or joint ventures the group’s net assets/the individual investment income accounted for using the equity

method accounting for over 15% of the group’s total profit

6. Accounting treatment of business combinations involving entities under common control and not

under common control

1. Accounting treatment of business combinations involving entities under common control

Assets and liabilities acquired from a business combination by the Company are measured at the carrying value of the assets

and liabilities of the acquiree in the consolidated financial statements of the ultimate controller at the combination date. The

difference between the carrying value of the owners’ equity of the acquiree as stated in the consolidated financial statements of the

ultimate controller and the carrying value of the total consideration paid or total par value of the shares issued in connection with

the combination is treated as an adjustment to the capital reserve. In case the capital reserve is not sufficient to absorb the

difference the remaining balance is charged against the retained earnings.

2. Accounting treatment of business combinations involving entities not under common control

Where the cost of the combination exceeds the Company’s share of the fair value of the acquiree’s net identifiable assets the

difference is recognized as goodwill at the acquisition date. Where the cost of combination is lower than the Company’s share of

the fair value of the acquiree’s net identifiable assets the Company reviews the measurement of the fair value of each of the

identifiable assets liabilities and contingent liabilities acquired from the acquiree and the cost of combination and if the cost of

combination as reviewed is still lower than the Company’s share of the fair value of the acquiree’s net identifiable assets the

difference is recognized in profit or loss.

123DSBJ Annual Report 2025

7. Determination of control and method of preparation of consolidated financial statements

1. Determination of control

Control means that the Company has power over the investee exposure or rights to variable returns from its involvement

with the investee and the ability to use its power to affect the amount of those returns.

2. Method of preparation of consolidated financial statements

(1) The parent includes all of its controlled subsidiaries in its consolidated financial statements. The consolidated financial

statements are prepared by the parent in accordance with ASBE 33 “Consolidated Financial Statements” on the basis of the

respective financial statements of the parent and its subsidiaries by reference to other relevant data.

8. Classification of joint arrangements and accounting treatment of joint operations

9. Recognition of cash and cash equivalents

For the purpose of the cash flow statement cash comprises cash on hand and demand deposits and cash equivalents

comprise short-term highly liquid investments that are readily convertible into known amounts of cash and which are subject to an

insignificant risk of changes in value.

10. Translation of foreign currency transactions and foreign currency financial statements

1. Translation of foreign currency transactions

Upon initial recognition foreign currency transactions are translated into RMB using the approximate exchange rates of spot

exchange rates at the transaction dates. At the balance sheet date monetary items denominated in foreign currencies are translated

into RMB using the spot exchange rates then prevailing. Exchange differences arising from such translations are recognized in

profit or loss except for those attributable to foreign currency borrowings that have been taken out specifically for the acquisition

or construction of qualifying assets and accrued interest. Non-monetary items denominated in foreign currencies that are measured

at historical cost are translated using the approximate exchange rates of spot exchange rates at the transaction dates without

adjusting the amounts in RMB. Non-monetary items denominated in foreign currencies that are measured at fair value are

translated using the spot exchange rates prevailing at the dates when the fair value was determined with the exchange differences

arising from such translations recognized in profit or loss or other comprehensive income.

2. Translation of foreign currency financial statements

The asset and liability items in the balance sheet are translated at the spot exchange rates prevailing at the balance sheet date.The owners’ equity items other than “retained profits” are translated at the spot exchange rates prevailing at the transaction dates.The income and expense items in the income statement are translated at the approximate exchange rates of spot exchange rates at

the transaction dates. The differences arising from such translation of foreign currency financial statements are recognized in other

comprehensive income.

11. Financial instruments

1. Classification of financial assets and financial liabilities

Upon initial recognition financial assets are classified as: (i) financial assets at amortized cost; (ii) financial assets at fair

value through other comprehensive income; and (iii) financial assets at fair value through profit or loss.Upon initial recognition financial liabilities are classified as: (i) financial liabilities at fair value through profit or loss; (ii)

financial liabilities arising as a result of the transfer of financial assets not meeting the criteria for derecognition or continuing

124DSBJ Annual Report 2025

involvement in the financial assets transferred; (iii) financial guarantee contracts not falling under items (i) or (ii) and loan

commitments not falling under item (i) and below market interest rate; and (iv) financial liabilities at amortized cost.

2. Recognition measurement and derecognition of financial assets and financial liabilities

(1) Recognition and initial measurement of financial assets and financial liabilities

When the Company becomes a party to a financial instrument contract a financial asset or liability is recognized. Financial

assets or liabilities are initially measured at fair value. Transaction costs relating to financial assets and liabilities at fair value

through profit or loss are directly recognized in profit or loss. Transaction costs relating to other kinds of financial assets or

liabilities are included in their initially recognized amount. However the accounts receivable that do not contain any significant

financing component or are recognized by the Company without taking into consideration the significant financing components

under the contracts with a term of less than one year upon initial recognition are initially measured at transaction price as defined

in ASBE 14 “Revenue”.

(2) Subsequent measurement of financial assets

1) Financial assets at amortized cost

Financial assets at amortized cost are subsequently measured at amortized cost using the effective interest method. Gains or

losses on financial assets at amortized cost that do not belong to any hedging relationship are recognized in profit or loss upon

derecognition reclassification amortization using the effective interest method or recognition of impairment.

2) Investments in debt instruments at fair value through other comprehensive income

Investments in debt instruments at fair value through other comprehensive income are subsequently measured at fair value.Interest impairment losses or gains and exchange gains or losses calculated using the effective interest method are recognized in

profit or loss while other gains or losses are recognized in other comprehensive income. Upon derecognition the aggregate gains

or losses previously recognized in other comprehensive income are transferred to profit or loss.

3) Investments in equity instruments at fair value through other comprehensive income

Investments in equity instruments at fair value through other comprehensive income are subsequently measured at fair value.Dividends received (other than those received as recovery of investment cost) are recognized in profit or loss while other gains or

losses are recognized in other comprehensive income. Upon derecognition the aggregate gains or losses previously recognized in

other comprehensive income are transferred to retained earnings.

4) Financial assets at fair value through profit or loss

Financial assets at fair value through profit or loss are subsequently measured at fair value. Gains or losses thereon

including interest and dividend income are recognized in profit or loss except the financial assets belonging to any hedging

relationship.

(3) Subsequent measurement of financial liabilities

1) Financial liabilities at fair value through profit or loss

Financial liabilities at fair value through profit or loss include financial liabilities held for trading (including derivatives

classified as financial liabilities) and financial liabilities designated as at fair value through profit or loss. Such financial liabilities

are subsequently measured at fair value. Changes in the fair value of financial liabilities designated as at fair value through profit

or loss arising out of changes in the Company’s credit risk are recognized in other comprehensive income unless such treatment

will result in or increase any accounting mismatch in profit or loss. Other gains or losses on such financial liabilities including

interest expenses and changes in fair value not arising out of changes in the Company’s credit risk are recognized in profit or loss

except the financial liabilities belonging to any hedging relationship. Upon derecognition the aggregate gains or losses previously

recognized in other comprehensive income are transferred to retained earnings.

2) Financial liabilities arising as a result of the transfer of financial assets not meeting the criteria for derecognition or

continuing involvement in the financial assets transferred

Such financial liabilities are measured in accordance with ASBE 23 “Transfer of Financial Assets”.

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3) Financial guarantee contracts not falling under items 1) or 2) and loan commitments not falling under item 1) and below

the market interest rate

Upon initial recognition such financial liabilities are subsequently measured at the higher of (i) allowance for impairment

losses determined according to the policy for impairment of financial instruments; and (ii) balance of the initially recognized

amount after deduction of the accumulated amortization determined in accordance with ASBE 14 “Revenue”.

4) Financial liabilities at amortized cost

Financial liabilities at amortized cost are subsequently measured at amortized cost using the effective interest method. Gains

or losses on financial liabilities at amortized cost that do not belong to any hedging relationship are recognized in profit or loss

upon derecognition or amortization using the effective interest method.

(4) Derecognition of financial assets and financial liabilities

1) Financial assets are derecognized when:

* the contractual right to receive cash flows from the financial assets has expired; or

* the financial assets have been transferred and such transfer meets the criteria for derecognition of financial assets as set

forth in ASBE 23 “Transfer of Financial Assets”.

2) A financial liability (or part thereof) is derecognized when all or part of the outstanding obligations thereunder have been

discharged.

3. Determination and measurement of financial assets transferred

When a financial asset of the Company is transferred if substantially all the risks and rewards incidental to the ownership of

the financial asset have been transferred the financial asset is derecognized and the rights and obligations incurred or retained in

such transfer are separately recognized as assets or liabilities (as the case may be); if the Company has retained substantially all the

risks and rewards incidental to the ownership of the financial asset the Company continues to recognize the financial asset

transferred. If the Company neither transferred nor retained a substantial portion of all risks and rewards incidental to the

ownership of the financial asset then: (i) if the Company does not retain control over the financial asset the financial asset is

derecognized and the rights and obligations incurred or retained in such transfer are separately recognized as assets or liabilities

(as the case may be); or (ii) if the Company retains control over the financial asset the financial asset continues to be recognized to

the extent of the Company’s continuing involvement in the financial asset transferred and a corresponding liability is recognized.If an entire transfer of a financial asset meets the criteria for derecognition the difference between (i) the carrying value of

the financial asset transferred at the date of derecognition; and (ii) the sum of the consideration received from the transfer and the

portion of the cumulative amount of changes in fair value directly recorded as other comprehensive income originally that

corresponds to the part derecognized (where the financial asset transferred is an investment in debt instruments at fair value

through other comprehensive income) is recognized in profit or loss. If part of a financial asset is transferred and the part

transferred entirely meets the criteria for derecognition the total carrying value of the financial asset immediately prior to the

transfer is allocated between the part derecognized and the part not derecognized in proportion to their relative fair value at the

date of transfer and the difference between (i) the carrying value of the part derecognized; and (ii) the sum of the consideration

received from the transfer of the part derecognized and the portion of the cumulative amount of changes in fair value directly

recorded as other comprehensive income originally that corresponds to the part derecognized (where the financial asset transferred

is an investment in debt instruments at fair value through other comprehensive income) is recognized in profit or loss.

4. Determination of fair value of financial assets and financial liabilities

The Company adopts the valuation techniques applicable to the current situations and with sufficient data available and

support of other information to determine the fair value of financial assets and financial liabilities. The Company classifies the

inputs used by the valuation techniques in the following levels and uses them in turn:

(1) Level 1 inputs: quoted market price (unadjusted) in an active market for an identical asset or liability available at the date

of measurement;

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(2) Level 2 inputs: inputs other than inputs included within Level 1 that are observable directly or indirectly. This category

includes quoted prices for similar assets or liabilities in active markets quoted prices for identical or similar assets or liabilities in

inactive markets observable inputs other than quoted prices (such as interest rate and yield curves observable during regular

intervals of quotation) and inputs validated by the market;

(3) Level 3 inputs: inputs that are unobservable. This category includes interest rate or stock volatility that cannot be directly

observed or validated by observable market data future cash flows from retirement obligations incurred in business combinations

and financial forecasts made using own data.

5. Impairment of financial instruments

The Company determines the impairment and assesses allowance for impairment of financial assets at amortized cost

investments in debt instruments at fair value through other comprehensive income contract assets lease payments receivable loan

commitments other than financial liabilities designated at fair value through profit or loss and financial guarantee contracts other

than financial liabilities designated at fair value through profit or loss and financial liabilities arising as a result of the transfer of

financial assets not meeting the criteria for derecognition or continuing involvement in the financial assets transferred on the basis

of expected credit impairment losses.Expected credit impairment loss is the weighted average of credit impairment losses on financial instruments taking into

account the possibility of default. Credit impairment loss is the present value of the difference between all contractual cash flows

receivable under the contract and estimated future cash flows discounted at the original effective interest rate i.e. the present value

of all cash shortages where the Company’s purchased or originated financial assets that have become credit impaired are

discounted at their credit-adjusted effective interest rate.With respect to purchased or originated financial assets that have become credit impaired at the balance sheet date the

Company recognizes an impairment loss equal to the cumulative amount of changes in lifetime expected credit impairment losses

since initial recognition.With respect to lease payments receivable accounts receivable arising from transactions within the meaning of ASBE 14

“Revenue” and contract assets the Company uses the simplified measurement method and recognizes an impairment loss equal to

the lifetime expected credit impairment losses.With respect to financial assets not using the measurement methods stated above at each balance sheet date the Company

assesses whether the credit risk has increased significantly since initial recognition and recognizes an impairment loss equal to the

lifetime expected credit impairment losses if the credit risk has increased significantly since initial recognition or to the expected

credit impairment losses within the next 12 months if the credit risk has not increased significantly since initial recognition.The Company uses reasonable and supportable information including forward-looking information and compares the

possibility of default at the balance sheet date with the possibility of default upon initial recognition to determine whether the

credit risk of the financial instruments has increased significantly since initial recognition.At the balance sheet date if the Company determines that a financial instrument has low credit risk the Company assumes

that its credit risk has not increased significantly since initial recognition.The Company assesses expected credit risk and measures expected credit impairment losses of financial instruments

individually or collectively. When assessing the financial instruments collectively the Company includes the financial instruments

in different groups according to their common risk characteristics.At each balance sheet date the Company re-assesses the expected credit impairment losses with the amount of increase in or

reversal of impairment loss recognized in profit or loss as impairment losses or gains. With respect to a financial asset at amortized

cost its carrying value recorded in the balance sheet is written off against the impairment loss. With respect to an investment in

debt instruments at fair value through other comprehensive income the Company recognizes the impairment loss in other

comprehensive income without reducing its carrying value.

6. Offsetting of financial assets and financial liabilities

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Except as stated above financial assets and financial liabilities are presented in the balance sheet separately without

offsetting each other. Financial assets and financial liabilities are offset and presented on a net basis in the balance sheet only if: (i)

the Company has a currently enforceable legal right to offset the recognized amounts; and (ii) the Company has an intention to

settle on a net basis or realize the assets and settle the liabilities simultaneously.With respect to the transfer of financial assets not meeting the criteria for derecognition the Company does not offset the

financial assets transferred against the relevant liabilities.

7. Standard for identifying and making provision of expected credit losses for receivables and contract assets

1. Accounts receivable and contract assets for which the allowance for expected credit impairment losses is recognized

collectively according to credit risk characteristics

Group type Basis forgrouping Method for measuring expected credit impairment losses

Banker’s acceptance bills receivable By reference to historical credit impairment loss experience and taking

into account the current situations and prediction of future economic

Commercial acceptance bills Type of bills conditions calculate the expected credit impairment losses according to

receivable the default risk exposure and rate of lifetime expected credit impairment

Financial company acceptance bills loss.receivable

By reference to historical credit impairment loss experience and taking

into account the current situations and prediction of future economic

Accounts receivable – aging group Age conditions prepare a comparison table of the age of accounts receivable

and rate of expected credit impairment loss and calculate the expected

credit impairment losses.Accounts receivable – optical Business By reference to historic credit loss experience and taking into account the

communication business group segment current situations and prediction of future economic conditions calculate

the expected credit losses according to the default risk exposure and 12-

Accounts receivable – conventional Business month or rate of lifetime expected credit loss.vehicle business group segment

By reference to historical credit impairment loss experience and taking

into account the current situations and prediction of future economic

Other receivables – aging group Age conditions prepare a comparison table of the age of other receivables and

rate of expected credit impairment loss and calculate the expected credit

impairment losses.Other receivables – conventional Business By reference to historic credit loss experience and taking into account the

vehicle business group segment current situations and prediction of future economic conditions calculate

the expected credit losses according to the default risk exposure and 12-

Other receivables – optical Business month or rate of lifetime expected credit loss.communication business group segment

By reference to historic credit loss experience and taking into account the

Long-term receivables – conventional Business current situations and prediction of future economic conditions calculate

vehicle business group segment the expected credit losses according to the default risk exposure and 12-

month or rate of lifetime expected credit loss.

2. Comparison table of the age and rate of expected credit impairment loss

Age Rate of expected credit loss Rate of expected credit losson accounts receivable (%) on other receivables (%)

Within 6 months (inclusive the same below) 0.5 5

7-12 months 5 5

1-2 years 20 10

2-3 years 60 50

Over 3 years 100 100

The age of accounts receivable/other receivables is calculated from the date of initial recognition.

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3. Determination of accounts receivable and contract assets for which the allowance for expected credit impairment losses is

recognized individually

With respect to the accounts receivable and contract assets whose credit risk is significantly different from that of the

relevant group an allowance for expected credit impairment losses is recognized individually.

12. Notes receivable

13. Accounts receivable

14. Accounts receivable financing

15. Other receivables

16. Contract assets

Contract assets or contract liabilities are presented in the balance sheet according to the relationship between the relevant

performance obligations and payment by the customer. Contract assets and contract liabilities under the same contract are

presented on a net basis.The right of the Company to payment that is unconditional except for the passage of time is presented as an account

receivable. The right of the Company to payment for goods already transferred to a customer is presented as a contract asset if that

right to payment is conditional on something other than the passage of time.

17. Inventories

1. Classification of inventories

Inventories include finished products or goods held for sale in the ordinary course of business work in progress and

materials and goods consumed in the process of production or rendering of services.

2. Valuation of inventories dispatched

The value of inventories dispatched is determined using the weighted average method at the end of the month in which they

were dispatched.

3. Inventory system

The perpetual inventory system is adopted.

4. Amortization of low-value consumables and packing materials

(1) Low-value consumables

Low-value consumables are amortized using the immediate write-off method.

(2) Packing materials

Packing materials are amortized using the immediate write-off method.

5. Inventory provision

(1) Recognition standard and method for provision of impairment for inventory

At the balance sheet date inventories are measured at the lower of cost and net realizable value. An amount equal to the cost

of an inventory in excess of its net realizable value is recognized as an inventory provision. The net realizable value of inventories

held directly for sale is the estimated selling price of such inventories less the estimated selling expenses and related taxes in the

ordinary course of business. The net realizable value of inventories to be further processed is the estimated selling price of finished

goods less the estimated cost of completion estimated selling expenses and related taxes in the ordinary course of business. At the

balance sheet date if part of an inventory has a contract price while the remaining part thereof does not have a contract price the

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net realizable value is determined separately which is compared with their cost to determine the amount of the inventory

provision recognized or reversed (as applicable).

18. Assets held for sale

19. Debt investments

20. Other debt investments

21. Long-term receivable

22. Long-term equity investments

1. Determination of joint control and significant influence

Joint control is the contractually agreed sharing of control of an arrangement which exists only when decisions about the

relevant activities require unanimous consent of the parties sharing control. Significant influence is the power to participate in the

financial and operating policy-making of an entity but is not control or joint control over those policies.

2. Determination of investment cost

(1) For an equity investment acquired through a business combination involving entities under common control if the

acquirer pays consideration for the business combination by cash transfer of non-monetary assets assumption of liabilities or

issuance of equity securities the initial investment cost of the long-term equity investment is the Company’s share of the carrying

value of the owners’ equity of the acquiree in the consolidated financial statements of the ultimate controller at the combination

date. The difference between: (i) the initial investment cost of the long-term equity investment; and (ii) the carrying value of the

consideration paid for the combination or the total par value of the shares issued (as applicable) is treated as an adjustment to the

capital reserve. In case the capital reserve is not sufficient to absorb the difference the remaining balance is charged against the

retained earnings.If a business combination is effected through multiple transactions by steps that constitute a package deal the Company

accounts for such transactions as one deal to gain control. If such transactions constitute a package deal the Company accounts for

such transactions as one transaction to acquire control. If such transactions do not constitute a package deal the initial investment

cost is the Company’s share of the carrying value of the owners’ equity of the acquiree in the consolidated financial statements of

the ultimate controller at the combination date; and the difference between: (i) the initial investment cost of the long-term equity

investment at the combination date; and (ii) the sum of the carrying value of long-term equity investment before the combination

and the carrying value of the consideration paid for acquisition of the additional shares at the combination date is treated as an

adjustment to the capital reserve. In case the capital reserve is not sufficient to absorb the difference the remaining balance is

charged against the retained earnings.

(2) For an equity investment acquired through a business combination involving entities not under common control the

initial investment cost is the fair value of the aggregate consideration paid at the date of acquisition.With respect to a long-term equity investment acquired through a business combination involving entities not under common

control that is effected through multiple transactions by steps the accounting thereof in the standalone financial statements is

different from that in the consolidated financial statements as stated below:

1) In the standalone financial statements the sum of the carrying value of the equity investment originally held in the

acquiree and the additional investment cost incurred is recorded as the initial investment cost of the equity investment changed

into the cost method.

2) In the consolidated financial statements it is required to judge whether such transactions constitute a package deal. If such

transactions constitute a package deal the Company accounts for such transactions as one transaction to acquire control. If such

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transactions do not constitute a package deal the equity held in the acquiree prior to the acquisition date is remeasured at its fair

value at the acquisition date with the difference between its fair value and carrying value recognized as an investment income for

the current period; if the equity held in the acquiree prior to the acquisition date involves other comprehensive income under the

equity method such other comprehensive income is transferred to the income for the period in which the acquisition date falls

except for other comprehensive income arising from remeasurement of changes in net liabilities or net assets of defined benefit

plans.

(3) For an equity investment not acquired through business combination the initial investment cost is the purchase price

actually paid if it is acquired by cash or the fair value of the equity securities issued if it is acquired through issuance of equity

securities or in accordance with ASBE 12 “Debt Restructuring” if it is acquired through debt restructuring or ASBE 7 “Exchangeof Non-monetary Assets” if it is acquired through exchange of non-monetary assets.

3. Subsequent measurement and recognition of profit or loss

Long-term equity investments in investees over which the Company exercises control are accounted for using the cost

method. Long-term equity investments in associates and joint ventures are accounted for using the equity method.

4. Disposal of investment in a subsidiary through multiple transactions by steps until loss of control over the subsidiary

(1) Criteria for determining a package deal

Where the Company loses control over a subsidiary due to the disposal of equity investment in the subsidiary through

multiple transactions by steps the Company determines whether such transactions constitute a package deal taking into account

the transaction contract terms consideration received the transferee of the equity sold method of disposal time of disposal and

other information in respect of each step. If the terms conditions and financial effect of such transactions fall under one or more of

the circumstances set forth below such transactions are accounted for as a package deal generally:

1) such transactions are concluded simultaneously or in consideration of their mutual effect;

2) such transactions will achieve a complete business result only as a whole;

3) the occurrence of a transaction depends on the occurrence of at least another transaction; and/or

4) a transaction may be uneconomical when considered individually but is economical when considered together with other

transactions.

(2) Accounting treatment of transactions not constituting a package deal

1) Standalone financial statements

The difference between the carrying value of the equity disposed of and the disposal proceeds actually received is recognized

in profit or loss. If the remaining equity empowers the Company to exercise significant influence or joint control over the investee

the remaining equity is accounted for using the equity method; if the remaining equity does not empower the Company to exercise

control joint control or significant influence over the investee the remaining equity is accounted for in accordance with ASBE 22

“Recognition and Measurement of Financial Instruments”.

2) Consolidated financial statements

Before the loss of control the difference between the disposal proceeds and the Company’s share of the net assets of the

subsidiary corresponding to the long-term equity investment disposed of as calculated continuously from the acquisition date or

combination date is treated as an adjustment to the capital reserve (capital premium). In case the capital premium is not sufficient

to absorb the difference the remaining balance is charged against the retained earnings.Upon loss of control the remaining equity is remeasured at its fair value at the date of loss of control. The sum of the

consideration received from the disposal of the equity and the fair value of the remaining equity net of the Company’s share of the

net assets of the subsidiary as calculated continuously from the acquisition date or combination date according to the original

shareholding ratio is included in the investment income for the period during which the control was lost and charged against

goodwill. Other comprehensive income related to the equity investment in the subsidiary is transferred to the investment income

for the period during which the control was lost.

(3) Accounting treatment of transactions constituting a package deal

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1) Standalone financial statements

The Company accounts for such transactions as one deal to dispose of and lose control over the subsidiary; however in the

standalone financial statements the difference between the proceeds from each disposal before loss of control and the carrying

value of the long-term equity investment corresponding to the investment disposed of is recognized in other comprehensive

income which is wholly transferred to profit or loss in the period during which the control was lost.

2) Consolidated financial statements

The Company accounts for such transactions as one deal to dispose of and lose control over the subsidiary; however in the

consolidated financial statements the difference between the proceeds from each disposal before loss of control and the

Company’s share of the net assets of the subsidiary corresponding to the investment disposed of is recognized in other

comprehensive income which is wholly transferred to profit or loss in the period during which the control was lost.

23. Investment property

Measurement model for investment property

Measured at cost

Method of depreciation or amortization

1. Investment properties include land use rights leased out or held for appreciation and buildings and structures leased out.

2. An investment property is measured initially at cost and subsequently using the cost model and depreciated or amortized

using the same method as fixed assets and intangible assets.

24. Fixed assets

(1) Criteria for recognition

Fixed assets are tangible assets held for the production of goods rendering of service lease or operation and management

with a service life of more than one accounting year. A fixed asset is recognized if the economic benefits relating to it are very

likely to flow to the Company and its cost can be reliably measured.

(2) Depreciation

Annual rate of

Type Method of depreciation Estimated service life Rate of residual value

depreciation

Buildings and

Straight line method 20-30 0-5 3.17-4.75

structures

Machinery and

Straight line method 5-10 5 9.50-19.00

equipment

Transportation

Straight line method 5 5 19.00

equipment

Office equipment and

Straight line method 5 5 19.00

others

25. Construction in progress

1. A construction in progress is recognized if the economic benefits relating to it are very likely to flow to the Company and

its cost can be reliably measured. Construction in progress is measured at the actual cost incurred before it is completed and ready

for the intended use.

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2. When a construction in progress is ready for intended use it is transferred to fixed assets at its actual construction cost. A

construction in progress that is ready for intended use but the final settlement of which has not yet been completed is transferred to

fixed assets at estimated value first and after the completion of the final settlement the estimated value is adjusted according to

the actual cost without adjusting the accumulated depreciation.Category Criteria and time for transfer of construction in progress to fixed assets

The main construction project and supporting project have been substantially

Buildings and structures completed reached the predefined design requirements and inspected and

accepted

Meet the design requirements or agreed standards after installation and

Machinery and equipment

commissioning

26. Borrowing costs

1. Recognition of capitalization of borrowing costs

Borrowing costs that are directly attributable to the acquisition construction or production of a qualifying asset are

capitalized as part of the cost of the asset when they meet the condition for capitalization. Other borrowing costs are expensed

when they are incurred and recognized in profit or loss.

2. Period of capitalization of borrowing costs

(1) A borrowing cost is capitalized when all of the following conditions are satisfied: (i) the expenditures on the asset have

already been incurred; (ii) the borrowing cost has already been incurred; and (iii) the acquisition construction or production

activities necessary to prepare the asset for its intended use or sale have already commenced.

(2) Capitalization of borrowing costs is suspended during the period of abnormal interruption of acquisition construction or

production of a qualifying asset which lasts for more than three consecutive months. The borrowing costs incurred during the

period of suspension are recognized as expenses for the current period. The capitalization of borrowing costs is suspended until the

resumption of acquisition construction or production activities.

(3) Capitalization of borrowing costs ceases when a qualifying asset acquired constructed or produced gets ready for its

intended use or sale.

3. Rate and amount of capitalization of borrowing costs

For borrowings obtained specially for the acquisition construction or production of a qualifying asset the amount of

capitalization of the borrowing costs is the cost of the borrowings actually incurred in the current period (including amortized

discount or premium determined using the effective interest method) less the interest income from the part of borrowings that has

not yet been utilized and is deposited in banks or investment income from temporary investment of the borrowings. For general

borrowings occupied for the acquisition construction or production of a qualifying asset the amount of borrowing costs eligible

for capitalization is determined by multiplying the weighted average of the excess of cumulative expenditures on the asset over the

special-purpose borrowings by the capitalization rate of the general borrowings occupied.

29. Intangible assets

(1) Service life and basis for determination of service life estimates method of amortization or review

procedure

1. Intangible assets including land use right patents non-patent technologies etc. are initially measured at cost.

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2. An intangible asset with a finite service life is amortized in a systematic and reasonable manner according to the pattern in

which the economic benefits related to the intangible asset are expected to be realized or if that pattern cannot be determined

reliably using the straight line method as follows:

Item Service life and basis for determination of service life Method of amortization

Determine the service life to be 50 years according to the period

Land use right Straight line method

for title registration

Determine the service life to be 3 years according to the expected

Software use right Straight line method

beneficial period

Determine the service life to be 10 years according to the expected

Unpatented technology Straight line method

beneficial period

Determine the service life to be 10 years according to the expected

Trademarks and patents Straight line method

beneficial period

Determine the service life to be 10 years according to the expected

Customer resources Straight line method

beneficial period

Intangible asset with indefinite service life is not amortized but its service life is reviewed annually.

(2) Scope and accounting treatment of research and development (R&D) expenses

(1) Labor costs

Labor costs comprise the wages salaries basic pension insurance basic medical insurance unemployment insurance

worker’s compensation insurance maternity insurance and housing provident fund contributions paid to or for the R&D personnel

and service fees of the outsourced R&D personnel.With respect to the R&D personnel serving a number of R&D projects concurrently their labor costs are allocated to the

relevant R&D projects on a pro-rata basis according to the record of working hours spent by them in such R&D projects as

provided by the administrative department.With respect to the Company’s own R&D personnel and outsourced R&D personnel who are directly engaged in R&D

activities and also engaged in non-R&D activities their labor costs actually incurred are allocated between R&D expenses and

production and business expenses on a pro-rata basis in proportion to the percentage of working hours spent by them on different

posts as recorded or otherwise reasonably.

(2) Direct costs

Direct costs refer to the costs actually incurred by the Company in connection with R&D activities including (i) costs of

materials fuels and powers directly consumed; (ii) costs of development and fabrication of molds and process equipment used in

pilot trials and trial production purchasing costs of samples prototypes and general testing methods not classified as fixed assets

and inspection costs of trial produces; and (iii) operation maintenance calibration inspection testing repair and other costs of

instruments and equipment used in R&D activities.

(3) Depreciation expenses and long-term deferred expenses

Depreciation expenses refer to the depreciation expenses of instruments equipment and buildings used in R&D activities.With respect to the instruments equipment and buildings used in both R&D activities and non-R&D activities the

depreciation expenses actually incurred are allocated between R&D expenses and production and business expenses according to

the actual working hours and area used as recorded or otherwise reasonably.Long-term deferred expenses refer to the long-term deferred expenses incurred in the alteration modification renovation

and repair of R&D facilities which are recorded according to the amounts actually spent and amortized on a straight line basis

over the defined period.

(4) Amortization expenses of intangible assets

134DSBJ Annual Report 2025

Amortization expenses of intangible assets refer to the amortization expenses of software intellectual properties and non-

patented technologies (know-how licenses designs computing methods etc.) used in R&D activities.

(5) Design costs

Design costs refer to the costs incurred in the design of processes technical specifications rules of operation and operating

features in connection with the concept development and manufacturing of new products and new processes including the costs

of creative design activities conducted for the purpose of developing innovative creative and breakthrough products.

(6) Equipment commissioning costs and testing costs

Equipment commissioning costs refer to the costs incurred during the equipment preparation phase of

R&D activities including the costs of developing special-purpose production machines changing production

and quality control procedures developing new approaches and standards etc.The costs incurred for general equipment preparation and industrial engineering in connection with large-

scale mass and commercial production are excluded from the scope of aggregation.Testing costs include clinical trial costs for the development of new drugs field trial costs for exploration

and development technologies field experiment costs etc.

(7) Outsourced R&D expenses

Outsourced R&D expenses refer to the expenses of R&D activities that the Company engages external entities or individuals

at home or abroad to conduct provided that the results of such R&D activities will be owned by the Company and such R&D

activities are closely related to the primary business of the Company.

(8) Other expenses

Other expenses refer to the expenses that are not set forth above and directly related to R&D activities including the

expenses of technical documents and data material translation advisors and consultants high and new technology R&D insurance

retrieval verification evaluation appraisal and acceptance inspection of R&D achievements application registration and agency

service in respect of intellectual properties meetings travel communication etc.Expenditures on an internal R&D project at the research phase are recognized in profit or loss in the period in which they are

incurred. Expenditures on an internal R&D project at the development phase are recognized as an intangible asset if: (i) it is

technically feasible to complete the intangible asset so that it will be available for use or sale; (ii) it is intended to complete the

intangible asset so that it will be available for use or sale; (iii) the pattern in which the intangible asset will generate economic

results can demonstrate the existence of a market for the output of the intangible asset or the intangible asset itself or if it is to be

used internally the usefulness of the intangible asset; (iv) there are sufficient technical financial and other resources available to

complete the development activities and to use or sell the intangible asset; and (v) the expenditures attributable to the development

of the intangible asset can be reliably measured.

30. Impairment of long-term assets

With respect to long-term equity investments investment properties at cost fixed assets construction in progress right-of-

use assets intangible assets with a finite service life and other long-term assets if there’s an indication of impairment at the

balance sheet date the Company assesses their recoverable amount. Goodwill arising from business combinations and intangible

assets with an infinite service life are tested for impairment every year regardless of whether there’s an indication of impairment.Goodwill is tested for impairment together with the relevant groups of assets or combinations of groups of assets.

135DSBJ Annual Report 2025

If the recoverable amount of a long-term asset is less than its carrying value the difference is measured as impairment loss

on the asset and recognized in profit or loss.

31. Long-term deferred expenses

Long-term deferred expenses are expenses that have already been incurred but should be amortized over a period of more

than one year. Long-term deferred expenses are stated as the amount actually incurred and equally amortized over the benefit

period or established period. If an item of long-term deferred expenses will not benefit the subsequent periods the remaining

unamortized balance of the item is wholly transferred to profit or loss.

32. Contract liabilities

Contract assets or contract liabilities are presented in the balance sheet according to the relationship between the relevant

performance obligations and payment by the customer. Contract assets and contract liabilities under the same contract are

presented on a net basis.The Company’s obligation to transfer goods to a customer in exchange for the consideration paid or payable by the customer

is presented as a contract liability.

33. Employee benefits

(1) Accounting treatment of short-term employee benefits

The short-term employee benefits actually incurred are recognized as liabilities in the accounting period during which

employee services are rendered and included in profit or loss or the cost of related assets.

(2) Accounting treatment of post-employment benefits

Post-employment benefits are classified as defined contribution plans and defined benefit plans.

(1) In the accounting period during which employee services are rendered the amount contributable as calculated according

to the defined contribution plan is recognized as liabilities and included in profit or loss or the costs of related assets.

(2) The accounting treatment of a defined benefit plan generally involves the following steps:

1) According to the projected unit credit method use unbiased and consistent actuarial assumptions to estimate demographic

variables and financial variables measure the obligation arising from the defined benefit plan and determine the period to which

the relevant obligation belongs. Meanwhile discount the obligation arising from the defined benefit plan in order to determine the

present value of the benefit plan obligation and the current service cost;

2) If the defined benefit plan has assets the deficit or surplus resulting after reducing the present value of the defined benefit

obligation by the fair value of the asset of the defined benefit plan is recognized as a net liability or asset of the defined benefit

plan. If the defined benefit plan has a surplus the net assets of the defined benefit plan are measured at the lower of surplus in the

defined benefit plan and asset ceiling;

3) At the end of the current period the cost of employee benefits arising from the defined benefit plan is recorded as service

cost net interest on the net liabilities or net assets of the defined benefit plan and changes arising from remeasurement of the net

liabilities or net assets of the defined benefit plan where the service cost and the net interest on the net liabilities or net assets of

the defined benefit plan are included in profit or loss or the cost of related assets and the changes arising from remeasurement of

the net liabilities or net assets of the defined benefit plan are included in other comprehensive income which will not be reversed

to profit or loss in subsequent periods but may be transferred within the scope of equity.

136DSBJ Annual Report 2025

(3) Accounting treatment of termination benefits

(1) when the Company can no longer withdraw the offer of termination benefits as a result of termination of employment or

redundancy; or (2) the Company recognizes the restructuring costs or expenses relating to payment of termination benefits

whichever the earlier the employee benefit liabilities arising from recognition of termination benefits are recognized in profit or

loss.

(4) Accounting treatment of other long-term employee benefits

Other long-term employee benefits are accounted for in accordance with the provisions applicable to defined contribution

plans if they are qualified as defined contribution plans otherwise are accounted for in accordance with the provisions applicable

to defined benefit plans. In order to simplify the accounting the total net amount of the cost of employee benefits arising from the

defined benefit plans that is recorded as service cost net interest on the net liabilities or net assets of the other long-term employee

benefits changes arising from remeasurement of the net liabilities or net assets of the other long-term employee benefits and other

components is included in profit or loss or the cost of related assets.

34. Provisions

1. Provisions are recognized when the Company has a present obligation as a result of any external guarantee litigations

product quality warranty onerous contract or other contingencies and it is probable that an outflow of resources embodying

economic benefits will be required to settle the obligation and the amount of the obligation can be reliably measured.

2. Provisions are initially measured according to the best estimates of the expenditures required to settle the related present

obligations. The carrying value of provisions is reviewed at the balance sheet date.

35. Share-based payments

1. Types of share-based payments

Share-based payments include equity-settled share-based payment and cash-settled share-based payment.

2. Accounting treatment of implementation amendment and termination of share-based payment plans

(1) Equity-settled share-based payment

With respect to an equity-settled share-based payment that is granted in exchange for the services of employees if the right

can be immediately exercised after the grant at the date of the grant the fair value of the equity instruments is included in the

relevant costs or expenses and the capital reserve is adjusted accordingly; if the right may not be exercised until the vesting period

comes to an end or until the specified performance conditions are met at each balance sheet date within the vesting period the

services received in the current period are based on the best estimate of the exercisable equity included in the relevant costs or

expenses at the fair value of the equity instruments at the date of grant and the capital reserve is adjusted accordingly.An equity-settled share-based payment that is granted in exchange for the services of any other party is measured at fair

value at the date of receipt of such services if the fair value of such services can be reliably measured or at the fair value of the

equity instruments at the date of receipt of such services if the fair value of such services cannot be reliably measured but the fair

value of the equity instruments can be reliably measured. The services are included in the relevant costs or expenses and the

owners’ equity is increased accordingly.

(2) Cash-settled share-based payment

With respect to a cash-settled share-based payment that is granted in exchange for the services of employees if the right can

be immediately exercised after the grant at the date of grant the fair value of the liability undertaken by the Company is included

in the relevant costs or expenses and the liabilities are increased accordingly; if the right may not be exercised until the vesting

137DSBJ Annual Report 2025

period comes to an end or until the specified performance conditions are met at each balance sheet date within the vesting period

the services received in the current period are based on the best estimate about the exercisable right included in the relevant costs

or expenses and the corresponding liabilities at the fair value of the liability undertaken by the Company.

(3) Amendment and termination of share-based payment plans

If such amendment results in an increase in the fair value of the equity instruments granted the Company recognizes a

corresponding increase in the services received according to the increase in the fair value of the equity instruments. If such

amendment results in an increase in the number of the equity instruments granted the Company recognizes a corresponding

increase in the services received according to the fair value of the additional equity instruments granted. If the Company amends

the vesting conditions in a manner favorable to the employees the Company will take into account the vesting conditions as

amended in the accounting thereof.If such amendment results in a decrease in the fair value of the equity instruments granted the Company continues to

recognize the services received based on the fair value of the equity instruments at the date of grant without taking into account

the decrease in the fair value of the equity instruments. If such amendment results in a decrease in the number of the equity

instruments granted the portion of the equity instruments reduced is deemed canceled. If the Company amends the vesting

conditions in a manner unfavorable to the employees the Company will not take into account the vesting conditions as amended in

the accounting thereof.If during the vesting period the Company cancels or settles any equity instruments granted (except for those canceled due to

failure to satisfy the vesting conditions) such cancellation or settlement is treated as an acceleration of vesting and the amount

that would have been recognized in the remaining vesting period is recognized immediately.

36. Preferred shares perpetual bonds and other financial instruments

37. Revenue

Accounting policies for recognition and measurement of revenue disclosed by business type

1. Revenue recognition principle

At contract commencement date the Company assesses a contract to identify each single performance obligation included in

the contract and whether such performance obligation shall be satisfied over time or at a point in time.A performance obligation shall be satisfied over time if it meets one of the following conditions otherwise it shall be

satisfied at a point in time: (i) the customer simultaneously receives and consumes the benefits provided by the Company’s

performance; (ii) the customer can control the work in process created during the Company’s performance; or (iii) the Company’s

performance does not create the goods with an alternative use and the Company has an enforceable right to payment for

performance completed to date.With respect to a performance obligation satisfied over time the Company recognizes revenue over time by measuring the

progress toward complete satisfaction of that performance obligation. If the Company is unable to reasonably measure the progress

of a performance obligation but expects to recover the costs incurred in satisfying the performance obligation the Company

recognizes revenue only to the extent of the costs incurred until such time that it can reasonably measure the progress of the

performance obligation. With respect to a performance obligation satisfied at a point in time the Company recognizes revenue

when the customer obtains control of the relevant goods or services. In determining whether the customer has obtained control of

any goods the Company considers the following indicators: (i) the Company has a present right to payment for the goods i.e. the

customer presently is obliged to pay for the goods; (ii) the Company has transferred the legal title to the goods to the customer i.e.the customer has the legal title to the goods; (iii) the Company has transferred physical possession of the goods to the customer i.e.the customer physically possesses the goods; (iv) the Company has passed the significant risks and rewards of ownership of the

goods to the customer i.e. the customer has the significant risks and rewards of ownership of the goods; (v) the customer has

accepted the goods; and (vi) other indicators showing that the customer has obtained control of the goods.

138DSBJ Annual Report 2025

2. Revenue measurement principle

(1) The Company measures revenue according to the transaction price allocated to each performance obligation. Transaction

price is the amount of consideration to which the Company expects to be entitled in exchange for transferring the relevant goods or

services to a customer excluding the amounts collected on behalf of third parties or expected to be returned to the customer.

(2) If a contract has any variable consideration the Company determines the best estimate of the variable consideration

according to the expected value or the most likely amount but the Company shall include in the transaction price some or all of an

amount of variable consideration only to the extent that it is probable that a significant reversal in the amount of cumulative

revenue recognized will not occur when the uncertainty associated with the variable consideration is subsequently resolved.

(3) If a contract contains a significant financing component the Company determines the transaction price according to the

amount that the customer would have paid for the goods or services if it had paid cash when it obtained control of the goods or

services. The difference between such transaction price and the contract consideration is amortized over the term of the contract

using the effective interest method.

(4) If a contract includes two or more performance obligations at contract commencement date the Company allocates the

transaction price to each performance obligation on a relative standalone selling price basis.

3. Methods of revenue recognition

The Company is primarily engaged in the sale of electronic circuit optical modules (including optical chips) precision

components photoelectric display modules and other products the revenues from which constitute performance obligations to be

satisfied at a point in time. Revenue from sale of products on the domestic market is recognized when the Company has delivered

the products to the agreed place of delivery which has been accepted by the customer has received or has a present right to

payment for the products and it is probable that the economic benefits associated with the transaction will flow to the Company.Revenue from sale of products on the overseas market is recognized when the products delivered by the Company pursuant to the

contract have been cleared through customs and the Company has received the relevant export declaration form and bill of lading

has received or has a present right to payment for the products and it is probable that the economic benefits associated with the

transaction will flow to the Company.Different methods of revenue recognition and measurement for the same business type that adopts different business models.

38. Contract costs

39. Government grants

1. Government grants are recognized if (i) the Company meets the conditions attached to the government grants; and (ii) the

Company will receive the government grants. Government grants in the form of monetary assets are measured at the amount

received or receivable. Government grants in the form of non-monetary assets are measured at fair value or if their fair value is

unavailable at a nominal amount.

2. Determination and accounting treatment of government grants related to assets

Government grants related to assets are government grants which are offered for purchasing constructing or otherwise

acquiring long-term assets as provided by the applicable government documents or in the absence of such express provision in the

applicable government documents whose primary condition is that the Company should purchase construct or otherwise acquire

long-term assets. Government grants related to assets are offset against the carrying value of the relevant assets or recognized as

deferred income. Government grants related to assets recognized as deferred income are included in profit or loss over the service

life of the relevant assets on a reasonable and systemic basis. Government grants measured at nominal amount are directly

recognized in profit or loss. In case of a sale transfer retirement or damage of the relevant assets before the end of the intended

service life the balance of the unallocated deferred income is transferred to profit or loss for the period in which the assets are

disposed of.

3. Determination and accounting treatment of government grants related to income

139DSBJ Annual Report 2025

Government grants related to income are government grants other than those related to assets. Government grants related to

both assets and income where it is difficult to make a distinction between the portion related to assets and the portion related to

income are wholly classified as government grants related to income. Government grants related to income as compensation for

costs expenses or losses to be incurred in subsequent periods are recognized as deferred income and in the period for recognizing

the relevant costs expenses or losses included in profit or loss or offset against the relevant costs. Government grants related to

income as compensation for costs expenses or losses already incurred are directly included in profit or loss or offset against the

relevant costs.

4. Government grants related to day-to-day operations of the Company are recognized in other income or offset against the

relevant costs and expenses depending on the nature of economic business. Government grants not related to day-to-day operations

of the Company are recognized in non-operating revenues or expenses.

5. Accounting treatment of policy loan interest subsidy

If the financial authority directly appropriates any interest subsidy to the Company the interest subsidy is recognized as a

reduction in the borrowing cost.

40. Deferred tax assets and deferred tax liabilities

1. The difference between the tax base of an asset or liability and its carrying value or in case of an item not recognized as

an asset or liability whose tax base can be determined according to the applicable tax law the difference between its tax base and

carrying value is recognized as a deferred tax asset or deferred tax liability according to the tax rate applicable to the period in

which the asset or liability is expected to be recovered or settled.

2. Deferred tax assets are recognized to the extent of the amount of income tax payable that will be available in future

periods against which deductible temporary differences are deductible. At the balance sheet date deferred tax assets not

recognized in previous periods are recognized if there’s conclusive evidence that it is probable that sufficient taxable income will

be available in future periods against which the deductible temporary differences are deductible.

3. At the balance sheet date the carrying value of deferred tax assets is reviewed and written down to the extent that it is no

longer probable that sufficient taxable income will be available in future periods to allow the benefit of the deferred tax assets to

be utilized. If it is probable that sufficient taxable income will be available the amount of write-down is reversed.

4. The income taxes and deferred income taxes are included in profit or loss as income tax expenses or gains except the

income taxes arising from any: (i) business combination; or (ii) transaction or event directly recognized in owners’ equity.

5. Deferred income tax assets and deferred income tax liabilities are offset and presented on a net basis if: (i) the Company

has a legal right to settle current tax assets and current tax liabilities on a net basis; and (ii) the deferred tax assets and deferred tax

liabilities relate to income taxes levied by the same tax authority on either the same taxable entity or different taxable entities

which intend either to settle current tax assets and current tax liabilities on a net basis or to realize the assets and liabilities

simultaneously in each future period in which significant amounts of deferred tax assets or liabilities are expected to be reversed.

41. Leases

(1) Accounting treatment of leases under which the Company is lessee

At the lease commencement date a lease that has a lease term of 12 months or less and does not contain a purchase option is

a short-term lease. A lease of an asset with a low value when new is a lease of a low-value asset. Where the Company subleases or

expects to sublease a leased asset the original lease is not classified as a lease of a low-value asset.Except short-term leases and leases of low-value assets at the lease commencement date the Company recognizes right-of-

use assets and lease liabilities for the lease.

(1) Right-of-use assets

140DSBJ Annual Report 2025

Right-of-use assets are initially measured at cost which cost includes: (i) the amount of the lease liability initially measured;

(ii) any lease payments made at or before the commencement date less any lease incentives received; (iii) any initial direct costs

incurred by the lessee; and (iv) estimated costs to be incurred by the lessee in dismantling and removing the lease asset restoring

the site on which it is located or restoring the lease asset to the condition required by the terms and conditions of the lease.The Company depreciates the right-of-use assets using the straight-line method. If it is reasonable to be certain that the

ownership of a lease asset can be acquired by the end of the lease term the Company depreciates the right-of-use asset over its

remaining service life. Otherwise the Company depreciates the right-of-use asset over the shorter of the lease term and its

remaining service life.

(2) Lease liabilities

At the lease commencement date the Company measures a lease liability at the present value of the lease payments that have

not been paid at that date. The present value of lease payments is determined using the interest rate implicit in the lease as the

discount rate. If that rate cannot be readily determined the lessee’s incremental borrowing rate is used. The difference between the

lease payments and their present value is unrecognized financing costs. Interest expenses are measured for each period within the

lease term using the discount rate for determining the present value of lease payments and recognized in profit or loss. Variable

lease payments not included in the measurement of lease liabilities are recognized in profit or loss in the period during which they

are incurred.At the lease commencement date if there are changes in the in-substance fixed lease payments amounts expected to be

payable under residual value guarantee the index or rate used to determine the lease payments the result of an assessment of

purchase option renewal option or termination option or the actual exercise of such options the Company re-measures the lease

liability based on the present value of lease payments as adjusted and adjusts the carrying value of the right-of-use assets

accordingly. If the carrying value of the right-of-use asset is reduced to zero but the lease liability needs to be further reduced the

balance is recognized in profit or loss.

(3) Sale and leaseback

In accordance with ASBE 14 “Revenue” the Company assesses and determines whether the transfer of any asset in a sale

and leaseback transaction should be accounted for as a sale of that asset.If the transfer of an asset is accounted for as a sale of the asset the Company measures the right-of-use asset arising from the

leaseback at the proportion of the original carrying value of the asset that relates to the right of use retained by the Company.Accordingly the Company recognizes only the amount of any gain or loss that relates to the rights transferred to the lessor.Otherwise the Company continues the recognition of the transferred asset and recognizes a financial liability equal to the

amount of transfer proceeds in accordance with ASBE 22 “Financial Instruments: Recognition and Measurement” at the same time.

(2) Accounting treatment of leases under which the Company is lessor

At the lease commencement date the Company classifies a lease that transfers substantially all the risks and rewards

incidental to ownership of a lease asset to the lessee as a finance lease and all other leases as operating leases.

(1) Operating lease

Lease receipts are recognized as lease income using the straight-line method over the lease term. Initial direct costs incurred

are capitalized amortized on the same basis as the recognition of lease income and recognized in profit or loss by installments.Variable lease payments related to the operating lease which are not included in the lease receipts are recognized in profit or loss

in the period during which they are incurred.

(2) Finance lease

At the lease commencement date the Company recognizes the finance lease payments receivable based on the net

investment in the lease (equal to the sum of unguaranteed residual value and the present value of lease receipts that are not

received at the lease commencement date and discounted using interest rate under the lease) and derecognizes the assets held

141DSBJ Annual Report 2025

under the finance lease. The Company calculates and recognizes interest income using the interest rate implicit in the lease over

the lease term.Variable lease payments that are not included in the measurement of the net investment in a lease are recognized in profit or

loss when they are incurred.

(3) Sale and leaseback

In accordance with ASBE 14 “Revenue” the Company assesses and determines whether the transfer of any asset in a sale

and leaseback transaction should be accounted for as a sale of that asset.If the transfer of an asset is accounted for as a sale of the asset the Company accounts for the purchase of assets in

accordance with other applicable standards and accounts for the lease of assets in accordance with ASBE 21 “ Leases”.Otherwise the Company does not recognize the transferred asset instead recognizes a financial asset equal to the amount of

transfer proceeds in accordance with ASBE 22 “Financial Instruments: Recognition and Measurement”.

42. Other Significant accounting policies and accounting estimates

1. Basis for the adoption of hedge accounting and its accounting treatment

(1) A hedge includes a fair value hedge/cash flow hedge/hedge of a net investment in a foreign operation.

(2) A hedging relationship qualifies for hedge accounting if all of the following conditions are met: (i) the hedging

relationship consists only of eligible hedging instruments and eligible hedged instruments; (ii) at the commencement of the hedge

there is formal designation of hedging instruments and hedged item and documentation of the hedging relationship and the

Company’s risk management objective and strategy for undertaking the hedge; and (iii) the hedging relationship meets the hedging

effectiveness requirements.The Company recognizes that the hedging relationship meets effectiveness requirements if all of the following conditions are

met: (i) there is an economic relationship between the hedged item and the hedging instruments; (ii) the effect of credit risk does

not dominate the value changes that result from the economic relationship between the hedged item and the hedging instruments;

and (iii) the hedge ratio of the hedging relationship is the same as the ratio of the quantity of the hedged item that the Company

actually hedges to the number of hedging instruments that the Company actually uses to hedge such hedged item but does not

reflect an imbalance between the weightings of the hedged item and the hedging instrument.The Company assesses whether a hedging relationship meets the hedge effectiveness requirements at commencement and on

an ongoing basis. If a hedging relationship ceases to meet the hedge effectiveness requirement relating to the hedge ratio but the

risk management objective for that designated hedging relationship remains the same the hedging relationship will be rebalanced.

(3) Hedge accounting treatment

1) Fair value hedge

* The gain or loss on a hedging instrument is recognized in profit or loss (or other comprehensive income if the hedging

instrument hedges a non-trading equity instrument (or a component thereof) at fair value through other comprehensive income).* The gain or loss on a hedged item arising from risk exposure is recognized in profit or loss with a corresponding

adjustment to the book balance of the hedged item not measured at fair value. If the hedged item is a financial asset (or a

component thereof) that is measured at fair value through other comprehensive income in accordance with Article XVIII of ASBE

22 “Financial Instruments: Recognition and Measurement” the gain or loss arising from the risk exposure on the hedged item is

recognized in profit or loss without adjusting its book balance which has already been measured at fair value; if the hedged item is

a non-trading equity instrument (or a component thereof) for which the Company has elected to present changes at fair value

through other comprehensive income the gain or loss arising from the risk exposure on the hedged item is recognized in other

comprehensive income without adjusting its book balance which has already been measured at fair value.

142DSBJ Annual Report 2025

When a hedged item is an unrecognized firm commitment (or a component thereof) the cumulative change in fair value of

the hedged item subsequent to its designation is recognized as an asset or a liability with a corresponding gain or loss recognized

in profit or loss. When a firm commitment is performed to acquire an asset or assume a liability the initial book balance of the

asset or the liability is adjusted to include the cumulative change in fair value of the hedged item that was previously recognized.For a hedged item that is a financial instrument (or a component thereof) measured at amortized cost any adjustment on the

book balance of the hedged item is amortized to profit or loss based on a recalculated effective interest rate at the date that

amortization begins. For a financial asset (or a component thereof) that is a hedged item and measured at fair value through other

comprehensive income in accordance with Article XVIII of ASBE 22 “Financial Instruments: Recognition and Measurement” the

cumulative gain or loss previously recognized thereon is amortized in the same manner and recognized in profit or loss without

adjusting its book balance.

2) Cash flow hedges

* The portion of the gain or loss on a hedging instrument that is determined to be an effective hedge is recognized in other

comprehensive income as cash flow hedge reserve while the ineffective portion is recognized in profit or loss. The cash flow

hedge reserve is recognized at the lower of the following (in absolute amount): A. the cumulative gain or loss on the hedging

instrument from the commencement of the hedge; B. the cumulative change in the present value of the estimated future cash flows

of the hedged item from the commencement of the hedge.* If a hedged forecast transaction subsequently results in the recognition of a non-financial asset or non-financial liability

or a hedged forecast transaction for a non-financial asset or non-financial liability becomes a firm commitment for which fair

value hedge accounting is applied the Company transfers out the amount of cash flow hedge reserve previously recognized in

other comprehensive income and includes it in the initial cost of the asset or the liability.* For other cash flow hedges the amount of cash flow hedge reserve previously recognized in other comprehensive income

is transferred to profit or loss in the same period the hedged forecast transaction affects profit or loss.

3) Hedges of a net investment in a foreign operation

The portion of the gain or loss on a hedging instrument that is determined to be an effective hedge is recognized in other

comprehensive income and reclassified from other comprehensive income into profit or loss on the disposal of the foreign

operation while the ineffective portion is recognized in profit or loss.

2. Accounting treatment related to share repurchase

When the Company repurchases its shares for the purpose of reducing its registered capital rewarding its employees or

otherwise if the purchased shares are to be held as treasury shares the treasury shares are recorded at the amount actually paid and

the relevant filing procedures are performed; if the repurchased shares are to be retired the difference between the total book value

of the shares retired and the amount actually paid therefore is recognized as a reduction in capital reserve and if the capital reserve

is not sufficient to absorb the difference the remaining balance is charged against the retained earnings. If the repurchased shares

are granted to the employees as equity-settled share-based payments the purchase price paid by the employees upon exercise of

their rights is recognized as a reduction in the cost of the relevant treasury shares vested in the employees and capital reserve

(other capital reserve) accumulated within the vesting period with a corresponding adjustment to capital reserve (share premium).

43. Significant changes in accounting policies and accounting estimates

(1) Significant changes in accounting policies

□ Applicable□ N/A

143DSBJ Annual Report 2025

44. Miscellaneous

VI. Taxation

1. Main categories of taxes and tax rates

Category of tax Tax base Tax rate

The output tax is calculated based on revenue from

Value-added tax sales of goods or rendering of services in accordance 13% 6% 5% 7%-25% for VAT for thewith the tax law net of the input tax deductible in the Company’s overseas subsidiaries

current period

If levied on the basis of price 1.2% * 70% of the

Property tax original value of the property; if levied on the basis of 1.2% or 12% (China)

rental 12% of the lease income

Urban maintenance

and construction tax Amount of turnover tax actually paid 5% or 7% (China)

Education surcharge Amount of turnover tax actually paid 3% (China)

Local education

surcharge Amount of turnover tax actually paid 2% (China)

9%、15%、16.50%、25%、0、21.75%-

Enterprise income tax Amount of taxable income 29.84%、17%、10%、20%、20.6%、24%、

30%、12%、16%、21.5%

Different rates of enterprise income tax applicable to the taxpayers:

Taxpayer Income tax rate

The Company Mutto Optronics Technology Co. Ltd. MFLEX Yancheng Co. Ltd. Yancheng

Dongshan Precision Manufacturing Co. Ltd. Suzhou RF Top Electronic Communication Co. Ltd.Suzhou Dongdai Electronic Technology Co. Ltd. Yancheng Dongshan Communication Technology

Co. Ltd. Suzhou Yongchuang Communication Technology Co. Ltd. Suzhou Jebson Intelligent 15.00%

Technology Co. Ltd. Suzhou Dongyue New Energy Technology Co. Ltd. and Yancheng Dongchuang

Precision Manufacturing Co. Ltd. Suzhou JDI Electronics Inc. Source Photonics (Chengdu) Co. Ltd.and Jiangsu Source Communications Technology Co. Ltd.Hong Kong Dongshan Precision Union Opoelectronic Co. Limited and other companies incorporated in

Hong Kong China 16.50%

Mutto Optronics Group Limited The Dii Group (BVI) Co. Limited Source Photonics Holdings

(Cayman) Limited 0

Federal corporate

Mflex Delaware Inc. Multi-Fineline Electronix Inc. (hereinafter referred to as Mflex) and other income tax rate 21%;

companies incorporated in the United States state corporate income

tax rate 0.75%-8.84%

Multi-Fineline Electronix Singapore Ptd. Ltd. and other companies incorporated in Singapore 17% (Singapore)

Multek Technologies Limited 15% (enjoying an 80%tax exemption)

Multek Technology Sweden AB 20.6% (Sweden)

Multek Technology Malaysia SDN.BHD 24% (Malaysia)

DSBJ Mexico S.DER.L.DEC.V. and other companies in Mexico 30.00%

Multi-Fineline Electronic (Thailand) Co. Ltd. Source Photonics Co. Ltd. 20.00%

Source Photonics (Macau) Commercial Offshore Limited 12.00%

Companies incorporated in Hungary 9.00%

Companies incorporated in Germany 30.88%

Companies incorporated in Portugal 21.50%

Companies incorporated in Morocco 21.50%

Companies incorporated in Slovakia 24.00%

Companies incorporated in Czech Republic 21.00%

Companies incorporated in Romania 16.00%

Other taxpayers not listed above 25.00%

144DSBJ Annual Report 2025

2. Tax preferences

1. Pursuant to the Administrative Measures on Certification and Management of High and New Technology Enterprises

(Guo Ke Fa Huo (2016) No. 32) and Guidelines for the Accreditation of High and New Technology Enterprises (Guo Ke Fa Huo

(2016) No. 195) Suzhou Dongdai Electronic Technology Co. Ltd. Suzhou Yongchuang Communication Technology Co. Ltd.

Suzhou Jebson Intelligent Technology Co. Ltd. Source Photonics (Chengdu) Co. Ltd. and Jiangsu Source Communications

Technology Co. Ltd. passed the qualification review of high and new technology enterprises with a term of three years from 2023

to 2026 and therefore are subject to an enterprise income tax rate of 15% for the current period.

2. Pursuant to the Administrative Measures on Certification and Management of High and New Technology Enterprises

(Guo Ke Fa Huo (2016) No. 32) and Guidelines for the Accreditation of High and New Technology Enterprises (Guo Ke Fa Huo

(2016) No. 195) Suzhou Dongyue New Energy Technology Co. Ltd. and Yancheng Dongchuang Precision Manufacturing Co.

Ltd. passed the qualification review of high and new technology enterprises with a term of three years from 2024 to 2027 and

therefore are subject to an enterprise income tax rate of 15% for the current period.

3. Pursuant to the Administrative Measures on Certification and Management of High and New Technology Enterprises

(Guo Ke Fa Huo (2016) No. 32) and Guidelines for the Accreditation of High and New Technology Enterprises (Guo Ke Fa Huo

(2016) No. 195) the Company and its subsidiaries including Mutto Optronics Technology Co. Ltd. Yancheng Dongshan

Precision Manufacturing Co. Ltd. MFLEX Yancheng Co. Ltd. Suzhou JDI Electronics Inc. and Suzhou RF Top Electronic

Communication Co. Ltd. passed the qualification review of high and new technology enterprises with a term of three years from

2025 to 2028 and therefore are subject to an enterprise income tax rate of 15% for the current period.

4. Multek Technologies Limited is subject to a corporate income tax rate of 15% under the Mauritius Corporate Income Tax

Act and as a global Class I company incorporated in Mauritius but operating abroad enjoys an 80% tax exemption so its effective

corporate income tax rate is 3%. From July 1 2025 to June 30 2028 enterprises entitled to the preferential tax rate and achieving

annual taxable income of over MUR 24.00 million shall pay an additional fair share contribution tax at 2%.

5. Pursuant to the Announcement of the Ministry of Finance and State Taxation Administration on Further Improvement to

the Policy on the Additional Pre-tax Deduction of Research and Development Expenses (Announcement No. 7 of 2023 by the

Ministry of Finance and State Taxation Administration) if an enterprise’s R&D expenses actually incurred during R&D activities

are not recognized in profit or loss for creation of intangible assets on the basis of actual deduction as specified from January 1

2023 there is an additional pre-tax deduction at 100% of the incurred amount; if intangible assets are created from January 1

2023 the R&D expenses may be allocated at 200% of the costs of such intangible assets prior to tax payment.

6. Pursuant to Article 244quaterB of the General Tax Code of France Eurostyle Systems Tech Center France GMD

Eurocast Eurocast Delle Eurocast Chateauroux and Eurocast Reyrieux located in France are entitled to the policy of offsetting

taxes against R&D expenditures. R&D expenditures that may be offset include: salaries of R&D personnel and technicians

depreciation of assets related to R&D expenses for R&D outsourcing patent-related expenditures etc. The tax credit is calculated

as follows: the eligible R&D expenditures in the year may be offset at 30% for the portion within EUR 10.00 million and at 5% for

the portion over EUR 10.00 million; the tax not fully offset in the year may be carried over during the effective period of the

policy.

7. Pursuant to the Announcement of the Ministry of Finance and the State Taxation Administration on Additional Deductions

for Value-added Taxes of Advanced Manufacturing Enterprises (Announcement No. 43 of 2023) from January 1 2023 to

December 31 2027 advanced manufacturing enterprises are allowed to deduct an additional 5% of the deductible input tax

amount from the payable VAT amount.

8. Export rebates for VAT

Pursuant to the Notice on Allowing Tax Rebate for Water Electricity and Gas Consumption in Export Processing Areas

(Guo Shui Fa [2002] No. 116) released by the State Taxation Administration Source Photonics (Chengdu) Co. Ltd. is entitled to

the tax rebate policy at 13% for the water electricity and gas consumption in the export processing area.

145DSBJ Annual Report 2025

Pursuant to the Value-added and Non-value-added Business Tax Act of Taiwan China Source Photonics Co. Ltd. is subject

to value-added business tax for the excess of the output tax over the input tax where the input tax may offset against the output tax.The prevailing value-added business tax rate is 5% while goods sold overseas (exported) are entitled to the tax rate of zero.Meanwhile for the over payment of business taxes for goods or services entitled to zero tax rate for acquisition of fixed assets

and for acquisition transfer dissolution or request for de-registration the tax payer may request tax rebate and the tax will be

refunded after being verified by the competent tax authority.Pursuant to the Implementation Measures for the Interim Regulations of the People’s Republic of China on Value-added Tax

where the goods manufactured by a domestic (foreign) manufacturing enterprise holding an export license are exported by itself or

through a foreign trade agency such goods are entitled to tax exemption and tax rebate unless otherwise provided.VII. Notes to items of the consolidated financial statements

1. Cash and bank balances

In RMB

Item Closing balance Opening balance

Cash on hand 620829.32 266540.67

Bank deposits 6104101796.83 5771485841.70

Other cash and bank balances 1545560882.95 1400578869.92

Total 7650283509.10 7172331252.29

Incl.: Total amounts deposited

2753243996.702457343027.80

abroad

Other information:

See Notes V(III)4 to the Financial Statements for cash and cash equivalents subject to restrictions on use and cash and bank

balances not classified as cash and cash equivalents.

2. Financial assets held for trading

In RMB

Item Closing balance Opening balance

Financial assets at fair value through profit or loss 201553860.61 78144342.95

Incl.:

Investments in equity instruments 124912226.68 63212376.92

Derivatives 65126316.01 14931966.03

Wealth management products 11515317.92

Total 201553860.61 78144342.95

4. Notes receivable

(1) Notes receivable by category

In RMB

Item Closing balance Opening balance

Commercial acceptance bills 9037098.60

146DSBJ Annual Report 2025

Total 9037098.60

(2) Notes receivable by method of recognition of allowance for doubtful accounts

In RMB

Closing balance Opening balance

Allowance for Allowance for

Book balance Book balance

Type doubtful accounts Carrying doubtful accounts Carrying

Ratio of value Ratio of value

Amount % Amount Amount % Amount

provision provision

Incl.:

Allowan

ce

recogniz 908251 45412.5 903709

100.00%0.50%

ed 1.16 6 8.60

collectiv

ely

Incl.:

Commer

cial 908251 45412.5 903709

100.00%0.50%

acceptan 1.16 6 8.60

ce bills

90825145412.5903709

Total 0.00 100.00% 0.50%

1.1668.60

(3) Allowance for doubtful accounts recognized recovered or reversed in the current period

Allowance for doubtful accounts recognized in the current period:

In RMB

Changes in the current period

Opening

Type Recovered or Closing balancebalance Recognized Written off Others

reversed

Allowance

recognized 45412.56 -45412.56

collectively

Total 45412.56 -45412.56

5. Accounts receivable

(1) Accounts receivable by age

In RMB

Age Closing book balance Opening book balance

Within 1 year (inclusive) 9821142620.45 7669860368.06

Within 6 months 9694632577.94 7558742455.97

7-12 months 126510042.51 111117912.09

1-2 years 94823755.62 30428150.63

2-3 years 26996591.42 42084100.70

147DSBJ Annual Report 2025

Over 3 years 257853544.65 218266298.53

3-4 years 36572094.64 33424157.23

4-5 years 32577185.82 103896595.98

Over 5 years 188704264.19 80945545.32

Total 10200816512.14 7960638917.92

(2) Accounts receivable by method of recognition of allowance for doubtful accounts

In RMB

Closing balance Opening balance

Allowance for Allowance for

Book balance Book balance

doubtful accounts doubtful accounts

Type Carrying Carrying

Ratio of value Ratio of value

Amount % Amount provisio Amount % Amount provisio

n n

Allowance

176594163612129817582208575142706598.

recognized 1.73% 92.65% 0.73% 98.79%

186.18411.8974.2994.3695.3799

individually

Allowance 100242

244459977976790241239666766275

recognized 22325.9 98.27% 2.44% 99.27% 3.03%

040.193285.778023.56597.061426.50

collectively 6

102008

408071979274796063297180766345

Total 16512.1 100.00% 4.00% 100.00% 3.73%

452.085060.068917.92892.438025.49

4

Allowance for doubtful accounts recognized collectively:

In RMB

Closing balance

Item Allowance for doubtful

Book balance Ratio of provision

accounts

Aging group 7170220901.02 216624006.04 3.02%

Conventional vehicle business 1418921042.01 18165569.17 1.28%

group

Optical communication 1435080382.93 9669464.98 0.67%

business group

Total 10024222325.96 244459040.19

Allowance for doubtful accounts recognized collectively: by aging group

In RMB

Closing balance

Item Allowance for doubtful

Book balance Ratio of provision

accounts

Within 6 months 6944475971.56 34722379.85 0.50%

7-12 months 29752785.82 1487639.29 5.00%

1-2 years 18217801.33 3643560.27 20.00%

2-3 years 2509789.20 1505873.52 60.00%

Over 3 years 175264553.11 175264553.11 100.00%

Total 7170220901.02 216624006.04

148DSBJ Annual Report 2025

(3) Allowance for doubtful accounts recognized recovered or reversed in the current period

Allowance for doubtful accounts recognized in the current period:

In RMB

Changes in the current period

Opening

Type

balance Recovered or

Closing balance

Recognized Written off Others

reversed

Allowance

recognized 57514295.37 70498760.02 2751648.54 2685542.96 41036548.00 163612411.89

individually

Allowance

recognized 239666597.06 -11117686.02 -2308936.45 1513938.62 15115131.32 244459040.19

collectively

Total 297180892.43 59381074.00 442712.09 4199481.58 56151679.32 408071452.08

(4) The top 5 debtors in terms of closing balance of accounts receivable and contract assets

In RMB

Closing % of total closing Closing balance of allowance

Total closing balance of

Company Closing balance of balance of balance of accounts for doubtful accounts

accounts receivable and

name accounts receivable contract receivable and receivable and impairment of

contract assets

assets contract assets contract assets

Top 1 1962763298.59 1962763298.59 19.24% 9855825.76

Top 2 499013149.43 499013149.43 4.89% 2657573.97

Top 3 455053347.43 455053347.43 4.46% 2275266.74

Top 4 378152891.15 378152891.15 3.71% 1055962.00

Top 5 343466482.53 343466482.53 3.37% 1759322.87

Total 3638449169.13 3638449169.13 35.67% 17603951.34

7. Accounts receivable financing

(1) Accounts receivable financing by category

In RMB

Item Closing balance Opening balance

Banker’s acceptance bills 285277607.54 252612009.41

Total 285277607.54 252612009.41

(2) Accounts receivable by method of recognition of allowance for doubtful accounts

In RMB

Closing balance Opening balance

Allowance for Allowance for

Book balance Book balance

doubtful accounts doubtful accounts

Type Carrying Carrying

Ratio of value Ratio of value

Amount % Amount provisio Amount % Amount provisio

n n

Incl.:

149DSBJ Annual Report 2025

Allowance

285277285277252612252612

recognized 100.00% 100.00%

607.54607.54009.41009.41

collectively

Incl.:

Banker’s

285277285277252612252612

acceptance 100.00% 100.00%

607.54607.54009.41009.41

bills

285277285277252612252612

Total 100.00% 100.00%

607.54607.54009.41009.41

(4) Accounts receivable financing pledged at the end of the current period

In RMB

Item Amount pledged at the end of the period

Banker’s acceptance bills 73295416.52

Total 73295416.52

(5) Accounts receivable financing already endorsed or discounted but not yet become due at the balance

sheet date

In RMB

Amount derecognized at the end of the Amount not derecognized at the end of

Item

period the period

Banker’s acceptance bills 1054462870.06

Total 1054462870.06

8. Other receivables

In RMB

Item Closing balance Opening balance

Other receivables 165859090.82 45836662.39

Total 165859090.82 45836662.39

(3) Other receivables

1) Other receivables by nature

In RMB

Nature of accounts Closing book balance Opening book balance

Loan and reserve fund 25105050.07 6147448.39

Security deposit 123410363.54 34357968.88

Temporary payment receivable and

114240978.4921095827.83

others

Total 262756392.10 61601245.10

2) Other receivables by age

In RMB

150DSBJ Annual Report 2025

Age Closing book balance Opening book balance

Within 1 year (inclusive) 116532010.22 27206070.82

1-2 years 28817442.05 18570040.87

2-3 years 41699919.12 6555716.67

Over 3 years 75707020.71 9269416.74

3-4 years 36405825.94 2020570.56

4-5 years 2176276.43 2933721.60

Over 5 years 37124918.34 4315124.58

Total 262756392.10 61601245.10

3) Other receivables by the method of recognition of allowance for doubtful accounts

□ Applicable □ N/A

In RMB

Closing balance Opening balance

Allowance for Allowance for

Book balance Book balance

doubtful accounts doubtful accounts

Type Carrying Carrying

Ratio of value Ratio of value

Amount % Amount provisio Amount % Amount provisio

n n

Allowan

ce

recogniz 234070 234070 234070 234070

0.89%100.00%3.80%100.00%

ed 4.91 4.91 4.91 4.91

individu

ally

Incl.:

Allowan

ce

recogniz 260415 945565 165859 592605 134238 458366

99.11%36.31%96.20%22.65%

ed 687.19 96.37 090.82 40.19 77.80 62.39

collectiv

ely

Incl.:

262756968973165859616012157645458366

Total 100.00% 36.88% 100.00% 25.59%

392.1001.28090.8245.1082.7162.39

Allowance for doubtful accounts recognized collectively:

In RMB

Closing balance

Item Allowance for doubtful

Book balance Ratio of provision

accounts

Conventional vehicle business

122142108.1279255890.3964.89%

group

Optical communication

59637159.2314473.280.02%

business group

Aging group 78636419.84 15286232.70 19.44%

Incl.: Within 1 year 57822116.31 2891105.81 5.00%

1-2 years 7078824.94 707882.49 10.00%

151DSBJ Annual Report 2025

2-3 years 4096468.39 2048234.20 50.00%

Over 3 years 9639010.20 9639010.20 100.00%

Total 260415687.19 94556596.37

Recognition of allowance for doubtful accounts in accordance with the general model of expected credit impairment losses:

In RMB

Stage I Stage II Stage III

Allowance for doubtful Lifetime expected Lifetime expected Total

accounts 12-month expected credit impairment loss credit impairment loss

credit impairment loss

(not credit impaired) (credit impaired)

Balance as at January 1

1360303.541857004.0912547275.0815764582.71

2025

In the current period the

balance as at January 1

2025

- Transferred to stage II -422118.73 422118.73

- Transferred to stage III -409646.84 409646.84

Recognized -164470.31 324325.47 -2756279.85 -2596424.69

Written off 510629.68 510629.68

Other changes 2737025.92 2957.77 81499789.25 84239772.94

Balance as at December 3510740.42 2196759.22 91189801.64 96897301.28

312025

6) The top 5 debtors in terms of closing balance of other receivables

In RMB

Company Nature of account Closing Age % of total closing balance Closing balance of allowancename balance of other receivables for doubtful accounts

Top 1 Temporary payment Within 1receivable and others 35063052.14 year 13.34% 1753152.61

Top 2 Security deposit 17177806.02 1-5 years 6.54% 14268482.73

Top 3 Security deposit 15157042.45 1-5 years 5.77% 10373457.87

Top 4 Temporary payment Within 1receivable and others 14106207.42 year 5.37% 705310.37

Top 5 Temporary payment Within 1receivable and others 11000000.00 year 4.19% 550000.00

Total 92504108.03 35.21% 27650403.58

9. Advances to suppliers

(1) Advances to suppliers by age

In RMB

Closing balance Opening balance

Age

Amount % Amount %

Within 1 year 254266212.51 92.72% 88459876.91 94.23%

152DSBJ Annual Report 2025

1-2 years 10599327.43 3.86% 1897007.20 2.02%

2-3 years 4918838.84 1.79% 1923162.05 2.05%

Over 3 years 4481309.57 1.63% 1595419.53 1.70%

Total 274265688.35 93875465.69

(2) The top 5 suppliers in terms of closing balance of advances to suppliers

Company name Book balance (RMB) % of the total balance of advances

Top 1 27200000.00 9.92

Top 2 25202190.66 9.19

Top 3 20636000.00 7.52

Top 4 17956000.00 6.55

Top 5 9389293.55 3.42

Subtotal 100383484.21 36.60

(1) Categories of inventories

In RMB

Closing balance Opening balance

Inventory provision Inventory provision

Item or allowance for or allowance for

Book balance impairment of Carrying value Book balance impairment of Carrying value

contract fulfilling contract fulfilling

costs costs

Raw

2758783839.14316612692.032442171147.111654514762.22177951960.021476562802.20

materials

Work in

2247197239.03202493545.702044703693.331003084859.7282988158.81920096700.91

progress

Goods on

4985685219.60716850179.364268835040.244503260856.05749742579.853753518276.20

hand

Circulating

100291581.3413639898.8986651682.452516343.4238514.882477828.54

materials

Materials

for

86582618.8886582618.88

consigned

processing

Total 10178540497.99 1249596315.98 8928944182.01 7163376821.41 1010721213.56 6152655607.85

(2) Inventory provision or allowance for impairment of contract fulfilling costs

In RMB

Increase in the current period Decrease in the current period

Opening

Item Reversed or Closing balancebalance Recognized Others Others

written off

Raw materials 177951960.02 111401268.23 133606551.64 106347087.86 316612692.03

Work in

82988158.81104331816.3760369498.0645195927.54202493545.70

progress

153DSBJ Annual Report 2025

Goods on hand 749742579.85 363023491.06 34418219.78 430334111.33 716850179.36

Circulating

38514.881898924.7011702459.3113639898.89

materials

1010721213.1249596315.

Total 580655500.36 240096728.79 581877126.73

5698

Basis for determining the net realizable value and reason for reversing or writing off the provisions for

decline in value of inventories in the current period

Reason for

Item Basis for determining the net realizable value

Reason for reversing the writing off the

inventory provision inventory

provision

Raw materials The net realizable value is the estimated The Company

Work in progress selling price of finished goods less the The circumstances that has sold or used

Other circulating estimated cost of completion estimated previously caused the the inventories

materials selling expenses and related taxes inventory to be written for which a

down no longer exist provision for

The net realizable value is the estimated resulting in that the net impairment of

Goods on hand selling price of finished goods less the realizable value of the inventory has

estimated selling expenses and related taxes inventory is greater than its been madecarrying amount during the

current period

13. Other current assets

In RMB

Item Closing balance Opening balance

Cost of returned goods receivable 25696670.02 28122898.55

Deductible input tax 784368551.60 743118926.80

Prepaid enterprise income tax 128996242.65 56072964.14

Deferred expenses and others 389525328.99 382527494.50

Total 1328586793.26 1209842283.99

16. Investment in other equity instruments

In RMB

Changes in the current period Aggregate gainDividend and loss

Gain and loss income recognized in

Item Closing Opening recognized in recognized otherbalance balance Additional Reducedinvestm other Others in the comprehensiveinvestment ent comprehensive current income at theincome in the period end of the

current period current period

Jiangsu Bohua

Equity

Investment 20773729 20000000 7737297.88 1713379.57.88 0.00 9 7737297.88Partnership

(L.P.)

Hai Dixin

Semiconductor 25883600 21322110 4561490.00 4561490.00

(Nantong) Co. .00 .00

154DSBJ Annual Report 2025

Ltd.Kunshan

Hostar

Intelligence 34885400 28800000.00 .00 6085400.00 6085400.00Technology

Co. Ltd.Dyness Digital

Energy 73898800 50000000

Technology .00 .00 23898800.00 23898800.00

Co. Ltd.Shanghai

Wuwen

Xinqiong 50000000 50000000

Intelligent .00 .00

Technology

Co. Ltd.Shinwu

Optronics 21770800 22035000

(Suzhou) Co. .00 .00 -264200.00 -264200.00

Ltd.Other 28800399 11500000 25602799 100000

companies .86 .00 .86 00.00 1697600.00

Total 44297629 33365711 75602799 100000 43716387.88 1713379.57.74 0.00 .86 00.00 9 43716387.88

Other information:

1) Jiangsu Bohua Equity Investment Partnership (L.P.)

Jiangsu Bohua Equity Investment Partnership (L.P.) was established on September 27 2021 with a registered capital of

RMB 3.3 billion and is primarily engaged in equity investment and venture capital investment (in non-listed companies only). In

consideration that this investment will bring a good return to the Company and provide the Company with opportunities to invest

in premium fields and assets and is not held for trading the Company designated this investment as a financial asset at fair value

through other comprehensive income.

2) Hai Dixin Semiconductor (Nantong) Co. Ltd.

Hai Dixin Semiconductor (Nantong) Co. Ltd. was established on April 6 2012 with a registered capital of RMB

36152329.00 in which the Company holds 10.2345% shares. In consideration that the Company has a close business relationship

with Hai Dixin Semiconductor (Nantong) Co. Ltd. the shares held by the Company in it will help the Company improve its

business competencies and the investment is not held for trading the Company designated this investment as a financial asset at

fair value through other comprehensive income on January 1 2019.

3) Hostar Intelligence Technology Co. Ltd. was established on April 2 2011 with a registered capital of RMB 42660000

in which the Company holds 3.038% shares. In consideration that the shares held by the Company in it will help the Company

improve its business competencies including supporting business scale expansion procuring raw materials/equipment and

developing and strengthening market and sales teams and the investment is not held for trading the Company designated this

investment as a financial asset at fair value through other comprehensive income in February 2023.

4) Dyness Digital Energy Technology Co. Ltd. was established on August 17 2017 with a registered capital of

RMB112023809 in which the Company holds 1.4716% shares. In consideration that the shares held by the Company in it will

help the Company improve its business competencies and the investment is not held for trading the Company designated this

investment as a financial asset at fair value through other comprehensive income in March 2023.

5) Shinwu Optronics (Suzhou) Co. Ltd. was established on October 19 2006 with a registered capital of RMB 57754000

in which the Company holds 1.7169% shares. In consideration that the shares held by the Company in it will help the Company

improve its business competencies and the investment is not held for trading the Company designated this investment as a

financial asset at fair value through other comprehensive income in May 2023.

155DSBJ Annual Report 2025

6) Shanghai Wuwen Xinqiong Intelligent Technology Co. Ltd. was established on May 31 2023 with a registered capital of

RMB 2191215 in which the Company holds 1.7697% shares. In consideration that the shares held by the Company in it will help

the Company improve its business competencies and the investment is not held for trading the Company designated this

investment as a financial asset at fair value through other comprehensive income in November 2025.

17. Long-term receivables

(1) Particulars of long-term receivables

In RMB

Closing balance Opening balance

Range of

Item Allowance for Allowance Carrying discount

Book balance doubtful Carrying value Book balance for doubtful

value rate

accounts accounts

Amount of

30000000.0030000000.0030000000.0030000000.00

finance lease

Labor service

by installment 281695941.78 1408479.76 280287462.02 3%-8%

receivable

Sale of long-

term assets by

49035581.772526000.0046509581.773.38%

installment

receivable

Total 360731523.55 3934479.76 356797043.79 30000000.00 30000000.00

18. Long-term equity investments

In RMB

Openin Changes in the current period

Closing

g Invest Declar

Oth balancebalance

Opening ment Adjustm ed Allow

of er

Closing of

balance Additi Reduce income ent to cash ance balance allowan

Investee allowan cha

(carryin onal d or loss other divide for Othnges (carryin ce force for

g value) invest investm under compreh nds or impair ers g value) impair

impair inment ent the ensive profit ment

equi mentment equity income distrib loss loss

loss tymethod ution

I. Joint ventures

II. Associates

Suzhou

Toprun

Electric 194776 51487 32656. 195103 51487

Equipme 64.46 204.05 54 21.00 204.05

nt Co.Ltd.Shenzhe

n

1750717507

Nanfang

056.47056.47

Blog

Technol

156DSBJ Annual Report 2025

ogy

Develop

ment

Co. Ltd.Shangha

i Fu

Shan

Precisio

n

Manufac

turing

Co. Ltd.Suzhou

LEGAT

E

-

Intellige 226470 214020

12450

nt 67.59 31.08

36.51

Equipme

nt Corp.Ltd.Suzhou

Dongcan

Optoelec -

331647269310

tronics 62337

2.492.45

Technol 0.04

ogy Co.Ltd.Jiangsu

Nangao

Intellige

nt

-

Equipme 344283 260299

83984

nt 5.16 4.36

0.80

Innovati

on

Center

Co. Ltd.Jiaozuo

Songyan

g

-

Photoele 243920 221816

22104

ctric 91.70 12.25

79.45

Technol

ogy Co.Ltd.Suzhou

Yongxin

Jingshan

g

35877153206411977

Venture

24.7749.1173.88

Capital

Partners

hip

(L.P.)

Isotek

8539485394

Microwa

24.6124.61

ve

157DSBJ Annual Report 2025

Limited

BVF

(BVI) 277342 27734

Holding 83.16 283.16

L.P.Multek

Internati

-

onal 2137

21370

Develop 05.00

5.00

ment

Limited

Shangha

i

Xinhuar

ui -

181212169785

Semicon 11426

56.3597.53

ductor 58.82

Technol

ogy Co.Ltd.-

1550087753321372773412656677533

Subtotal 92178

795.68685.1305.00283.16432.55685.13

4.97

-

1550087753321372773412656677533

Total 92178

795.68685.1305.00283.16432.55685.13

4.97

20. Investment properties

(1) Investment properties at cost

□ Applicable □ N/A

In RMB

Buildings and Construction

Item Land use right Total

structures in progress

I. Original value

1. Opening balance 5309132.17 5309132.17

2. Increase 148423000.00 148423000.00

(1) Acquired

(2) Transferred from inventories/ fixed assets/

construction in progress

(3) Increased due to business combinations

Transferred from intangible assets 148423000.00 148423000.00

3. Decrease

(1) Disposed

(2) Other transfer-out

4. Closing balance 5309132.17 148423000.00 153732132.17

II. Accumulated depreciation and amortization

1. Opening balance 4528003.07 4528003.07

2. Increase 254026.28 6394641.71 6648667.99

158DSBJ Annual Report 2025

(1) Recognized or amortized 254026.28 254026.28

Transferred from intangible assets 6394641.71 6394641.71

3. Decrease

(1) Disposed

(2) Other transfer-out

4. Closing balance 4782029.35 6394641.71 11176671.06

III. Allowance for impairment loss

1. Opening balance

2. Increase

(1) Recognized

3. Decrease

(1) Disposed

(2) Other transfer-out

4. Closing balance

IV. Carrying value

1. Closing balance 527102.82 142028358.29 142555461.11

2. Opening balance 781129.10 781129.10

21. Fixed assets

In RMB

Item Closing balance Opening balance

Fixed assets 16586762231.15 13595191232.40

Total 16586762231.15 13595191232.40

(1) Particulars of fixed assets

In RMB

Buildings and Machinery and Transportation Office equipment

Item Total

structures equipment equipment and others

I. Original value

1. Opening balance 5971211249.44 21623751576.31 99150719.84 998293766.67 28692407312.26

2. Increase 1533292363.62 4759051922.87 9080850.83 231427059.21 6532852196.53

(1) Acquired 1690583.30 185657253.50 1528777.95 12247637.81 201124252.56

(2) Transferred from

1280737701.923131819687.015592958.8795851750.134514002097.93

construction in progress

(3) Increased due to

247299396.321469096963.202314215.24125182097.541843892672.30

business combinations

(4) Translation of foreign

currency financial 3564682.08 -27521980.84 -355101.23 -1854426.27 -26166826.26

statements

3. Decrease 143175665.91 2243776886.49 23906010.71 205449945.86 2616308508.97

(1) Disposed or retired 143175665.91 2196012064.33 23906010.71 205449945.86 2568543686.81

(2) Transfer of

47764822.1647764822.16

construction in progress

4. Closing balance 7361327947.15 24139026612.69 84325559.96 1024270880.02 32608950999.82

159DSBJ Annual Report 2025

II. Accumulated

depreciation

1. Opening balance 2406383642.12 11467372557.00 61329692.85 753698962.63 14688784854.60

2. Increase 277865528.44 2629233334.42 10630485.73 127016528.93 3044745877.52

(1) Recognized 277348951.95 2132165640.64 10052641.50 81760386.68 2501327620.77

(2) Increased due to

511931676.24662139.3446497692.81559091508.39

combination

(3) Translation of foreign

currency financial 516576.49 -14863982.46 -84295.11 -1241550.56 -15673251.64

statements

3. Decrease 137862533.24 1686165464.91 13515371.87 184911210.04 2022454580.06

(1) Disposed or retired 137862533.24 1664960817.70 13515371.87 184911210.04 2001249932.85

(2) Transfer of

21204647.2121204647.21

construction in progress

4. Closing balance 2546386637.32 12410440426.51 58444806.71 695804281.52 15711076152.06

III. Allowance for

impairment loss

1. Opening balance 4570236.72 402994252.96 866735.58 408431225.26

2. Increase

(1) Recognized

3. Decrease 175192.92 97143415.73 97318608.65

(1) Disposed or retired 175192.92 97143415.73 97318608.65

4. Closing balance 4395043.80 305850837.23 866735.58 311112616.61

IV. Carrying value

1. Closing balance 4810546266.03 11422735348.95 25880753.25 327599862.92 16586762231.15

2. Opening balance 3560257370.60 9753384766.35 37821026.99 243728068.46 13595191232.40

(2) Temporary idle fixed assets

In RMB

Accumulated Allowance for

Item Original value Carrying value

depreciation impairment loss

Machinery and

224176351.08106531752.4034353156.2183291442.47

equipment

Subtotal 224176351.08 106531752.40 34353156.21 83291442.47

(4) Fixed assets whose property title certificates have not yet been obtained

In RMB

Reason for not obtaining the property

Item Carrying value

title certificate

Factory buildings of Multek 25943809.37 Pending review

Subtotal 25943809.37

22. Construction in progress

In RMB

Item Closing balance Opening balance

160DSBJ Annual Report 2025

Construction in progress 2345985416.22 2575154318.35

Total 2345985416.22 2575154318.35

(1) Particulars of construction in progress

In RMB

Closing balance Opening balance

Item Allowance for Allowance for

Book balance impairment Carrying value Book balance impairment Carrying value

loss loss

High-end AI PCB

construction project 228037607.94 228037607.94

Infrastructure construction of

the factory for Multi-layer 767805258.88 767805258.88 1228168131.58 1228168131.58

Circuit Board Co. Ltd.IC substrate project of

Chaowei Microelectronics 43527285.88 43527285.88 10009858.49 10009858.49

(Yancheng) Co. Ltd.Large-sized die-casting

project of Yancheng 178439112.27 178439112.27

Dongchuang

Kunshan new energy

manufacturing base-related 269865330.68 269865330.68 395279797.72 395279797.72

project

Automatic production line of

vehicle-mounted liquid 212383174.42 212383174.42 95496218.59 95496218.59

crystal display

MFLEX Yancheng Phase II

project 39243185.50 39243185.50 125744191.31 125744191.31

MFLEX Suzhou Guoxiang

Phase II and other

production expansion 52462660.56 52462660.56 160977750.57 160977750.57

projects

Construction project of

optical module 265534507.25 265534507.25

manufacturing line

Installation equipment in

progress and others 467126405.11 467126405.11 381039257.82 381039257.82

Total 2345985416.22 2345985416.22 2575154318.35 2575154318.35

(2) Changes in significant constructions in progress in the current period

In RMB

Rate of

Budget

(100 Opening Increase in the Amount % of project

Aggregate Incl.: interest

Item transferred to Other Closing balance costs to the Progres amount of Capitalized capitalizatio Source ofmillion balance current period fixed assets decreases budget s capitalized interest in the n in the fundsRMB) interest current period current

period

Own funds

High-end AI PCB

construction project 70.00 246596048.11 18558440.17 228037607.94 6.57% 3.52%

loans from

financial

institutions

Kunshan new

energy Loans from

manufacturing base 18.00 395279797.72 11657874.96 86426453.19

50645888.

81269865330.6895.00%95.00%

7229036.3

7 financial

project institutions

Large-sized die-

casting project of Loans from

Yancheng 15.00 178439112.27 122988818.26 301427930.53 100.00%

100.0018784092.

% 21 2346724.19 2.65% financial

Dongchuang institutions

Infrastructure

construction of the 1220700181. 1129180780. Loans fromfactory for Multi- 18.75 43 676596092.30 15 310234.70 767805258.88 100.00% 93.78%

2139604.5

2 1798303.10 0.76% financiallayer Circuit Board institutions

Co. Ltd.Construction Own funds

project of optical

module 18.00 296445757.55 30182068.34 729181.96 265534507.25 16.50% 16.50%

loans from

financial

manufacturing line institutions

Total 139.75 1794419091. 1354284591. 1565775672. 51685305. 1531242704. 28152733.42 18 38 47 75 10 4145027.29

161DSBJ Annual Report 2025

25. Right-of-use assets

(1) Particulars of right-of-use assets

In RMB

Buildings and Machinery and

Item Land Total

structures equipment

I. Original value

1. Opening balance 1513376667.44 30676878.28 93200186.63 1637253732.35

2. Increase 957359869.03 116690185.49 504637.90 1074554692.42

1) Lease in 225182890.10 39199476.43 252865.33 264635231.86

2) Increased due to

732241727.8677286511.39263216.00809791455.25

combination

3) Translation of

foreign currency -64748.93 204197.67 -11443.43 128005.31

financial statements

3. Decrease 3082365.13 251772.57 3334137.70

1) Disposal 3082365.13 251772.57 3334137.70

4. Closing balance 2467654171.34 147367063.77 93453051.96 2708474287.07

II. Accumulated

depreciation

1. Opening balance 312079420.58 2914303.50 8483709.14 323477433.22

2. Increase 166494765.54 6752715.51 5729695.89 178977176.94

(1)

92141646.916749198.075490903.41104381748.39

Recognized

2) Increased due to

75850779.35250055.2076100834.55

combination

3) Translation of

foreign currency -1497660.72 3517.44 -11262.72 -1505406.00

financial statements

3. Decrease 3082365.13 251772.57 3334137.70

(1) Disposed 3082365.13 251772.57 3334137.70

4. Closing balance 475491820.99 9667019.01 13961632.46 499120472.46

III. Allowance for

impairment loss

1. Opening balance

2. Increase

(1)

Recognized

3. Decrease

(1) Disposed

4. Closing balance

IV. Carrying value

1. Closing balance 1992162350.35 137700044.76 79491419.50 2209353814.61

2. Opening balance 1201297246.86 27762574.78 84716477.49 1313776299.13

162DSBJ Annual Report 2025

26. Intangible assets

(1) Particulars of intangible assets

In RMB

Unpatented Trademarks and Customer

Item Land use right Software Total

technology patents resources

I. Original value

1. Opening

775959155.426733029.45411964161.42154881057.21207803629.231557341032.73

balance

2. Increase 50057640.06 28695688.83 65577458.16 674265758.87 -1057000.00 817539545.92

(1)

13002972.2549793537.20749616.0963546125.54

Acquired

(2) Internal

2516876.3827523076.3430039952.72

R&D

(3)

Increased due to

32922072.5826077484.3616591041.29648850278.31724440876.54

business

combinations

4) Translation of

foreign currency 4132595.23 101328.09 -807120.33 -2857211.87 -1057000.00 -487408.88

financial statements

3. Decrease 190267056.08 30166.04 14760639.38 962272.00 28688715.11 234708848.61

(1)

41844056.0830166.0414760639.38962272.0057597133.50

Disposed

(2) Transfer of

148423000.00148423000.00

investment properties

(3) Others 28688715.11 28688715.11

4. Closing

635749739.4035398552.24462780980.20828184544.08178057914.122140171730.04

balance

II. Accumulated

amortization

1. Opening

110389681.796733029.45322949202.16114845957.0639829028.93594746899.39

balance

2. Increase 12494822.48 19743451.39 64631066.95 116634750.25 21619203.67 235123294.74

(1)

12494822.4819741438.3454679315.1315943036.5022158546.08125017158.53

Recognized

(2) Increased due to

10746683.28102362060.21113108743.49

combination

(3) Translation of

foreign currency 2013.05 -794931.46 -1670346.46 -539342.41 -3002607.28

financial statements

3. Decrease 16912449.94 13317428.91 962272.00 31192150.85

(1)

10517808.2313317428.91962272.0024797509.14

Disposed

(2) Transfer of

6394641.716394641.71

investment properties

4. Closing

105972054.3326476480.84374262840.20230518435.3161448232.60798678043.28

balance

III. Allowance for

163DSBJ Annual Report 2025

impairment loss

1. Opening

balance

2. Increase 20426470.33 20426470.33

(1)

Recognized

(1) Increased due to

20862468.6120862468.61

combination

(2) Translation of

foreign currency -435998.28 -435998.28

financial statements

3. Decrease

(1)

Disposed

4. Closing

20426470.3320426470.33

balance

IV. Carrying value

1. Closing

529777685.078922071.4088518140.00577239638.44116609681.521321067216.43

balance

2. Opening

665569473.6389014959.2640035100.15167974600.30962594133.34

balance

27. Goodwill

(1) Original value of goodwill

In RMB

Increase Decrease

Investee or event Translation of

giving rise to Opening balance Arising from foreign Closing balance

goodwill business currency Disposed Others

combination financial

statements

MFLEX 1770752915.84 1770752915.84

Multek 179329062.90 179329062.90

Mutto Optronics

Technology Co. 153957647.78 153957647.78

Ltd.Suzhou RF Top

Electronic

135001580.53135001580.53

Communication Co.Ltd.Source Photonics 2825093512.48 -26063415.57 2799030096.91

Aranda 50502380.96 50502380.96

Total 2289543588.01 2825093512.48 -26063415.57 50502380.96 5038071303.96

(2) Allowance for impairment of goodwill

In RMB

Investee or event giving rise to Opening Increase Decrease Closing

164DSBJ Annual Report 2025

goodwill balance Recognized Others Disposed Others balance

Mutto Optronics Technology Co. Ltd. 115869337.30 38088310.48 153957647.78

Suzhou RF Top Electronic

45697934.1769156360.00114854294.17

Communication Co. Ltd.Aranda 8364096.07 8364096.07

Total 169931367.54 107244670.48 268811941.95

(3) Information of asset group or combination of asset groups to which the goodwill belongs

Composition of asset group or Whether or not

Business segment and basis for

Item combination of asset group and basis for the same as

classification

grouping prior years

All of its assets and liabilities when PCB manufacturing circuit

MFLEX Yes

acquired by the Company boards

All of its assets and liabilities when PCB manufacturing circuit

Multek Yes

acquired by the Company boards

Mutto Optronics Technology Co.All of its assets and liabilities Photoelectric display module Yes

Ltd.Suzhou RF Top Electronic Precision components

All of its assets and liabilities Yes

Communication Co. Ltd. manufacturing ceramic filters

All the assets and liabilities of Source

Source Photonics Photonics when it was acquired by the Optical module Yes

Company

(4) Method of determination of recoverable amounts

Recoverable amount determined based on the present value of estimated future cash flows:

□ Applicable □ N/A

In RMB

Key parameters Key parameters Basis for determining the

Forecast

Item Carrying value Recoverable amount Impairment loss for the forecast for the stable key parameters for the

period

period period stable period

Revenue During the stable Pre-tax discount rate of

compound growth period revenue 10.62% determined based

MFLEX 11592132267.05 19400000000.00 5 years rate: 0.10%; gross growth rate: 0%; on the weighted average

profit margin: gross profit capital cost (WACC) as

17.00%. margin: 17.11%. adjusted.

Revenue

compound growth During the stable Pre-tax discount rate of

3355277279.45 3638000000.00 5 years rate: 2.12%;

period revenue 12.50% determined based

Multek average gross growth rate: 0%; on the weighted average

profit margin: gross profit capital cost (WACC) as

18.98%. margin: 19.11%. adjusted.

Revenue During the stable Pre-tax discount rate of

Mutto Optronics compound growth period revenue 9.30% determined based

Technology Co. 377515037.05 311000000.00 38088310.48 5 years rate: 6.00%; gross growth rate: 0%; on the weighted average

Ltd. profit margin: gross profit capital cost (WACC) as6.05%. margin: 7.02%. adjusted.Suzhou RF Top Revenue During the stable Pre-tax discount rate of

Electronic compound growth period revenue 14.40% determined based

211794700.00 113000000.00 69156360.00 5 years rate: 13.65%; growth rate: 0%; on the weighted average

Communication gross profit gross profit capital cost (WACC) as

Co. Ltd. margin: 15.86%. margin: 17.99%. adjusted.Revenue During the

compound growth stable period Pre-tax discount rate of

4913891520.68 5300000000.00 5 years rate: 3.20%; revenue growth

16.70% determined based

Source Photonics average gross rate: 0%; gross on the weighted average

profit margin: profit margin: capital cost (WACC) as

27.11%. 26.02%. adjusted.

Total 20450610804.23 28762000000.00 107244670.48

165DSBJ Annual Report 2025

1) According to the Valuation Report (Canwin Valuation Report [2026] No. 2-17) issued by Canwin Appraisal Co. Ltd. the

recoverable amount of the asset group or combination of asset groups including the goodwill for MFLEX was RMB

19400000000.00 which was higher than its carrying value of RMB 11592132267.05 so the goodwill was not impaired.

2) According to the Valuation Report (Canwin Valuation Report [2026] No. 2-26) issued by Canwin Appraisal Co. Ltd. the

recoverable amount of the asset group or combination of asset groups including the goodwill for Multek was RMB

3638000000.00 which was higher than its carrying value of RMB 3355277279.45 so the goodwill was not impaired.

3) According to the Valuation Report (Zhongsheng Valuation Report [2026] No. 0065) issued by Zhongsheng Appraisal &

Consulting Co. Ltd. the recoverable amount of the asset group or combination of asset groups including the goodwill for Mutto

Optronics Technology Co. Ltd. was RMB 311000000.00 while its carrying value was RMB 377515037.05 so a goodwill

impairment of RMB 38088310.48 was recognized.

4) According to the Valuation Report (Zhongsheng Valuation Report [2026] No. 0076) issued by Zhongsheng Appraisal &

Consulting Co. Ltd. the recoverable amount of the asset group or combination of asset groups including the goodwill for Suzhou

RF Top Electronic Communication Co. Ltd. was RMB 113000000.00 while its carrying value was RMB 211794700.00 so a

goodwill impairment of RMB 69156360.00 was recognized.

5) According to the Valuation Report (Zhongsheng Valuation Report [2026] No. 0081) issued by Zhongsheng Appraisal &

Consulting Co. Ltd. the recoverable amount of the asset group or combination of asset groups including the goodwill for Source

Photonics was RMB 5300000000.00 while its carrying value was RMB 4913891520.68 so the goodwill was not impaired.

28. Long-term deferred expenses

In RMB

Increase in the

Item Opening balance Amortization Other decreases Closing balance

current period

Decoration costs

of fixed assets and 903599713.89 356974769.42 227134742.78 42741218.84 990698521.69

others

Total 903599713.89 356974769.42 227134742.78 42741218.84 990698521.69

29. Deferred tax assets/deferred tax liabilities

(1) Deferred tax assets not offset

In RMB

Closing balance Opening balance

Item Deductible temporary Deductible temporary

Deferred tax assets Deferred tax assets

differences differences

Allowance for impairment of 1203661558.00 205547687.65 1324692293.90 205243454.52

assets

Deductible losses 3596361870.04 559296768.10 2300687978.39 362521218.64

Difference in depreciation of 105783341.60 20675023.55 56738475.07 13329567.82

fixed assets

Lease liabilities 2500101261.08 394720970.92 1925266733.21 304432313.12

Unrealized gains/losses from 329741349.28 62919533.24 276240960.60 57088993.26

inter-company transactions

166DSBJ Annual Report 2025

Change in the fair value of 1261168.56 189175.28 9096191.75 1953655.94

financial instruments

Deferred income 676768326.83 118169047.33 522365262.99 85669295.35

Accrued expenses 364698570.53 80596959.76 198231909.28 37291672.83

Total 8778377445.92 1442115165.83 6613319805.19 1067530171.48

(2) Deferred tax liabilities not offset

In RMB

Closing balance Opening balance

Item Taxable temporary Taxable temporary Deferred tax

Deferred tax liabilities

differences differences liabilities

One-off deduction of 3155071803.47 635400278.98 2569191598.13 523588207.16

depreciation of fixed assets

Accrued interest income and 265058358.96 54405181.91 89930966.31 19085788.45

others

Right-of-use assets 2304688646.71 375918561.89 1403935934.81 241292708.42

Income tax payable due to 842218446.34 181435486.53 351178186.24 79872611.80

increase in appraised value

Total 6567037255.48 1247159509.31 4414236685.49 863839315.83

(3) Deferred tax assets and deferred tax liabilities presented on a netting basis

In RMB

Closing offset amount Closing balance of Opening offset amount Opening balance of

Item of deferred tax assets deferred tax assets or of deferred tax assets deferred tax assets or

and liabilities liabilities after offset and liabilities liabilities after offset

Deferred tax assets 612352571.77 829762594.06 233079559.40 834450612.08

Deferred tax liabilities 612352571.77 634806937.54 233079559.40 630759756.43

(4) Unrecognized deferred tax assets

In RMB

Item Closing balance Opening balance

Deductible temporary differences 1451854757.71 660868902.87

Deductible losses 2267692018.60 701671666.45

Total 3719546776.31 1362540569.32

(5) Deductible losses on unrecognized deferred tax assets that will expire in the following years

In RMB

Year Closing balance Opening balance Remark

2025664655.23

202687657744.952874755.50

202780267559.235336249.76

2028112994295.3415008079.01

2029309477948.4188077121.81

2030441672949.0985423573.15

203198860507.1091460298.37

2032152321739.97147263784.23

167DSBJ Annual Report 2025

203380858597.9978499471.26

2034190605087.39187063678.13

2035703967351.66

2036171689.82

2037267667.11

2038432662.81

2039326995.38

2040273691.85

2041253903.25

2042337668.69

Indefinite 6943958.56

Total 2267692018.60 701671666.45

30. Other non-current assets

In RMB

Closing balance Opening balance

Allowance Allowance

Item for for

Book balance Carrying value Book balance Carrying value

impairment impairment

loss loss

Deferred income –

unrealized gain or loss 7711421.32 7711421.32 19414150.16 19414150.16

on sale and leaseback

Performance guarantee 434405903.95 434405903.95

for acquisition

Prepayment for 1014414674.53 1014414674.53 493140601.21 493140601.21

projects and equipment

Others 3010272.91 3010272.91

Total 1459542272.71 1459542272.71 512554751.37 512554751.37

31. Assets subject to restrictions on ownership or right of use

In RMB

Closing balance Opening balance

Reason Reason

Item Type of Type offor for

Book balance Carrying value restrictio Book balance Carrying value restrictio

restrictio restrictio

n n

n n

Cash and Security Security

bank 1545560882.9 1545560882.9 Pledge deposit 1828730869.9 1828730869.9 deposit

balances 5 5 for notes 2 2

Pledge for notes

etc. etc.Accounts

receivabl 981561847.06 981561847.06 Pledge Factoring 90000000.00 90000000.00 Pledge Factoring

e

Accounts

receivabl

e 73295416.52 73295416.52 Pledge

Pledge Pledge of

of notes 47745743.70 47745743.70 Pledge notes

financing

Security

Fixed

assets 159907169.80 151552245.09 Mortgage

Mortgage

for loans 690336250.99 190880378.32 Mortgage

for loans

sales and

leaseback

168DSBJ Annual Report 2025

Right-of- 2708474287.0 2209353814.6 Mortgage Finance 1582499405.5 1258999636.7 Mortgage Financeuse assets 7 1 lease 6 4 lease

4239312270.13416356628.6

Total 5468799603.4 4961324206.20 3 7 8

32. Short-term borrowings

(1) Short-term borrowings by category

In RMB

Item Closing balance Opening balance

Credit loans 6689912201.97 3857114689.19

Discounting and factoring financing of

notes letters of credit and accounts 1321561847.06 953839441.50

receivable

Total 8011474049.03 4810954130.69

33. Financial liabilities held for trading

In RMB

Item Closing balance Opening balance

Financial liabilities held for trading 46545937.17 82922390.17

Incl.:

Derivative financial liabilities 46545937.17 82922390.17

Incl.:

Total 46545937.17 82922390.17

35. Notes payable

In RMB

Category Closing balance Opening balance

Commercial acceptance bills 30000000.00 10677710.87

Banker’s acceptance bills 972812950.68 924903561.63

Total 1002812950.68 935581272.50

36. Accounts payable

(1) Breakdown of accounts payable

In RMB

Item Closing balance Opening balance

Payment for materials 10007113113.42 6934434355.01

Payment for projects and equipment 2493239585.68 2235670994.79

Others 542783988.24 489163640.63

Total 13043136687.34 9659268990.43

169DSBJ Annual Report 2025

37. Other payables

In RMB

Item Closing balance Opening balance

Other payables 705336813.22 94163223.90

Total 705336813.22 94163223.90

(3) Other payables

1) Other payables by nature

In RMB

Item Closing balance Opening balance

Share purchase price 535923369.94

Temporary receipts payable 77244154.65 54101772.81

Others 92169288.63 40061451.09

Total 705336813.22 94163223.90

39. Contract liabilities

In RMB

Item Closing balance Opening balance

Loans 474660658.17 122562435.14

Total 474660658.17 122562435.14

40. Employee benefits payable

(1) Employee benefits payable

In RMB

Item Opening balance Increase Decrease Closing balance

I. Short-term benefits 578999821.65 5533126012.86 5205044331.49 907081503.02

II. Post-employment

benefits – defined 15291550.45 466435749.80 402456739.08 79270561.17

contribution plans

III. Termination

3281714.9277672768.6573502363.087452120.49

benefits

IV. Other benefits due

1591258.13164010.071427248.06

within one year

Total 597573087.02 6078825789.44 5681167443.72 995231432.74

(2) Short-term employee benefits

In RMB

Item Opening balance Increase Decrease Closing balance

1. Wages bonuses allowances and

566785511.314837890787.974564772828.30839903470.98

subsidies

170DSBJ Annual Report 2025

2. Staff welfare 228316163.74 228316163.74

3. Social insurance contributions 7520834.55 266668018.57 220961454.82 53227398.30

Incl.: Medical insurance 7110065.19 241247893.28 200828937.32 47529021.15

Workers’ compensation

410769.3625420125.2920132517.505698377.15

insurance

4. Housing provident fund 2837418.06 174087063.93 173691695.27 3232786.72

5. Trade union fund and employee

1856057.7318449804.7914379717.085926145.44

education fund

6. Short-term paid absence 7714173.86 2922472.28 4791701.58

Total 578999821.65 5533126012.86 5205044331.49 907081503.02

(3) Defined contribution plans

In RMB

Item Opening balance Increase Decrease Closing balance

1. Basic pension

14661431.85439320266.99385717448.1568264250.69

insurance

2. Unemployment

630118.6027115482.8116739290.9311006310.48

insurance

Total 15291550.45 466435749.80 402456739.08 79270561.17

41. Taxes payable

In RMB

Item Closing balance Opening balance

Value-added tax 35923797.22 20674711.21

Enterprise income tax 513181003.94 342390303.11

Individual income tax 46215837.22 9277024.93

Urban maintenance and construction tax 7436675.11 4101006.65

Property tax 9916289.44 7364518.95

Stamp duty 7572566.44 5657390.62

Education surcharge 3010002.58 1878074.57

Land use tax 480526.20 367722.10

Local education surcharge 1983592.32 1252049.72

Other taxes 15616971.86 2809325.90

Total 641337262.33 395772127.76

43. Non-current liabilities due within one year

In RMB

Item Closing balance Opening balance

Long-term borrowings due within one

2959297257.022327145419.12

year

Long-term payables due within one year 28115200.00

Lease liabilities due within one year 500891170.93 131841882.24

Total 3488303627.95 2458987301.36

171DSBJ Annual Report 2025

44. Other current liabilities

In RMB

Item Closing balance Opening balance

Output tax to be recognized 26024795.18 5190838.21

Accrued maintenance expenses 17813333.90

Total 43838129.08 5190838.21

45. Long-term borrowings

Long-term borrowings by category

In RMB

Item Closing balance Opening balance

Pledge loans 333791638.89 714721945.32

Mortgage loans 52980858.25

Credit loans 5988306967.40 4470332834.45

Mortgage and guaranteed loans 104133111.56

Total 6375079464.54 5289187891.33

47. Lease liabilities

In RMB

Item Closing balance Opening balance

Lease obligations payable 1916709641.58 1456822089.69

Less: Unrecognized financing costs -126644820.85 -105303252.51

Total 1790064820.73 1351518837.18

48. Long-term payables

In RMB

Item Closing balance Opening balance

Long-term payables 49434786.31

Total 49434786.31

49. Long-term employee benefits payable

(1) Long-term employee benefits payable

In RMB

Item Closing balance Opening balance

I. Post-employment benefits - net

142470448.33

liabilities under defined benefit plans

Total 142470448.33

172DSBJ Annual Report 2025

50. Provisions

In RMB

Item Closing balance Opening balance

Business restructuring expenditures 134344496.21

Provision for commercial risks 81477617.62

Provision for sales return 26523128.06 27724858.36

Product warranty 21411260.96 30534014.56

Total 263756502.85 58258872.92

51. Deferred income

In RMB

Method of

Item Opening balance Increase Decrease Closing balance

acquisition

Government grants 585933889.89 523442239.62 219532996.02 889843133.49

Total 585933889.89 523442239.62 219532996.02 889843133.49 --

53. Share capital

In RMB

Change (+/-)

Opening Capitalizatio Closing

balance New shares Bonus shares n of capital Others Subtotal balance

reserves

170591371125693822.125693822.183160753

Total shares

0.0000002.00

Other information:

In June 2025 the Company issued 125693822 RMB-denominated ordinary shares (A shares) through private placement

and raised the net proceed of RMB 1391512544.73 including RMB 125693822.00 recognized in paid-in capital and RMB

1265818722.73 recognized in capital reserve (share premium).

55. Capital reserve

In RMB

Item Opening balance Increase Decrease Closing balance

Capital premium (share

7850787182.401265818722.73210620.799116395284.34

premium)

Other capital reserve 141497253.43 141497253.43

Total 7992284435.83 1265818722.73 210620.79 9257892537.77

Other information including the explanation about increase/decrease in the current period and the reasons of such change:

1) See the description in Notes V(I)41 to the Financial Statements.

2) The decrease in the capital reserve (share premium) in the current period is primarily due to the acceptance of capital

increase from minority shareholders by subsidiaries which diluted the Company’s shareholding ratio and led to adjustment to the

difference between the Company’s shares in the net assets of such subsidiaries and the corresponding investment costs.

173DSBJ Annual Report 2025

56. Treasury shares

In RMB

Item Opening balance Increase Decrease Closing balance

Treasury shares 74991696.79 100084437.00 175076133.79

Total 74991696.79 100084437.00 175076133.79

Other information including the explanation about increase/decrease in the current period and the reasons of such change:

The Company held the 18th meeting of the 6th Board of Directors on April 9 2025 at which the Proposal Regarding

Repurchase of the Company’s Shares was considered and adopted; as of May 6 2025 the Company has implemented the

repurchase by means of call auction under the special securities account for repurchase repurchased a total of 4202200 shares of

the Company with the trading amount of RMB 100084437.00.

57. Other comprehensive income

In RMB

Amount of the current period

Less: Other Less: Other

comprehen comprehen Amount Amount

Opening

Item sive sive Less: attributable attributable

Closing

balance Amount income income Income tax to the to minority balance

before tax

reclassified reclassified expenses parent after shareholder

to profit or to retained tax s after tax

loss earnings

I. Other

comprehensive

income that 46496393. 45801392. 45801392.

695001.40

cannot be 47 07 07

reclassified to

profit or loss

Incl.: Changes

from

2780005.52085004.12085004.1

remeasurement 695001.40

999

of defined

benefit plans

Change in

fair value of

43716387.43716387.43716387.

investments in

888888

other equity

instruments

II. Other

comprehensive

---

income that 36678393. 11446277. 30470299.

317104375238183.328663407

will be 54 57 27

4.0804.81

reclassified to

profit or loss

Difference

s in translation

----

of foreign

3126754010503807.10503807.32317920

currency

1.1695959.11

financial

statements

174DSBJ Annual Report 2025

Reserves for - -

47182201.11446277.40974107.36545134.

cash flow 4428972.9 5238183.3

49572230

hedge 2 0

Total other - - -

83174787.12141278.76271691.

comprehensive 31710437 5238183.3 24083268

019734

income 4.08 0 2.74

59. Surplus reserve

In RMB

Item Opening balance Increase Decrease Closing balance

Statutory surplus

232241216.5416909671.20249150887.74

reserve

Total 232241216.54 16909671.20 249150887.74

60. Retained profits

In RMB

Item Current period Previous period

Balance of retained profits at the end of the previous period before

9288043977.889025095529.05

adjustment

Opening balance of retained profits after adjustment 9288043977.88 9025095529.05

Add: Net profit attributable to owners of the parent 1386066705.56 1085641847.89

Less: Appropriation to statutory surplus reserve 16909671.20 47374346.81

Dividends payable to the ordinary shareholders 118795180.63 425319052.25

Transfer of other comprehensive income to retained earnings 350000000.00

Closing balance of retained profits 10538405831.61 9288043977.88

61. Operating revenue and operating costs

In RMB

Amount of the current period Amount of the previous period

Item

Revenue Cost Revenue Cost

Primary business 39643732616.04 34153971460.65 36479191979.20 31384152613.81

Other businesses 481126223.48 318698288.12 291182368.38 230856015.58

Total 40124858839.52 34472669748.77 36770374347.58 31615008629.39

62. Taxes and surcharges

In RMB

Item Amount of the current period Amount of the previous period

Urban maintenance and construction tax 37772291.54 61853438.98

Education surcharge 16720020.29 27745541.46

Property tax 42993372.55 34216080.50

Land use tax 1613327.58 2000681.61

Vehicle and vessel tax 421679.56 14547.32

175DSBJ Annual Report 2025

Stamp duty 25399806.51 22192921.83

Local education surcharge 11146680.05 18496251.85

Environmental protection tax 235125.64 523400.32

Total 136302303.72 167042863.87

63. Administrative expenses

In RMB

Item Amount of the current period Amount of the previous period

Employee benefits 687297831.52 588115074.18

Depreciation and amortization 174477609.89 170661772.04

Consulting service fees 163485611.63 82023901.91

Office expenses 67455743.01 54385756.29

Business entertainment expenses 67362659.46 72233699.76

Travel expenses 30392781.04 19968826.98

Rents 25885745.44 4960539.80

Repair costs 33608356.49 32327485.58

Taxes 1463956.91 1950672.98

Others 163125012.37 85774355.92

Total 1414555307.76 1112402085.44

64. Selling expenses

In RMB

Item Amount of the current period Amount of the previous period

Employee benefits 245857269.02 237488594.13

Sales service fees 93859008.44 109217184.46

Export charges 15160389.93 18461845.70

Travel expenses 17263760.01 14252966.99

Business entertainment expenses 27945861.62 29394436.20

Others 45060120.04 45202759.73

Total 445146409.06 454017787.21

65. R&D expenses

In RMB

Item Amount of the current period Amount of the previous period

Direct costs 552820998.14 548167661.46

Labor costs 633423008.67 510711948.15

Depreciation and amortization 124533733.49 98435864.38

Others 106448983.57 109497070.24

Total 1417226723.87 1266812544.23

66. Financial expenses

In RMB

Item Amount of the current period Amount of the previous period

Interest expenses 332187087.15 368551945.48

Interest on leases and financing service

111289170.8569674382.08

fees

Less: Interest income -200834090.18 -243071834.40

176DSBJ Annual Report 2025

Add: Exchange loss 8121129.30 -286978985.40

Bank charges and others 11699633.43 33088044.64

Total 262462930.55 -58736447.60

67. Other income

In RMB

Sources of other income Amount of the current period Amount of the previous period

Government grants related to assets 219532996.02 154892895.28

Government grants related to income 137997106.43 328831954.86

Additional deduction of VAT 1398908.43 32688476.14

Tax relief 1733198.24 5861818.16

Refund of individual income tax

2105588.06980688.11

withholding service fees

Total 362767797.18 523255832.55

69. Gain on changes in fair value

In RMB

Source of gain on changes in fair value Amount of the current period Amount of the previous period

Financial assets held for trading 62022355.11 -17898094.22

Incl.: Equity investments -819659.80

Derivatives 62007037.19 -17078434.42

Bank wealth management 15317.92

Total 62022355.11 -17898094.22

70. Investment income

In RMB

Amount of the current Amount of the previous

Item

period period

Income from long-term equity investments under the equity method -921784.97 -398084.25

Investment income from the disposal of long-term equity investments -5003046.71 -25868191.04

Investment income from financial assets held for trading during the holding

313465.45665778.00

period

Investment income from the disposal of financial assets held for trading 7264766.37 9630935.56

Dividend income from other equity instrument investments during the

1713379.59

holding period

Discount loss on accounts receivable financing -12649024.05 -6065210.89

Total -9282244.32 -22034772.62

71. Credit impairment loss

In RMB

Item Amount of the current period Amount of the previous period

Loss from doubtful accounts -63742824.35 -44109673.59

Total -63742824.35 -44109673.59

177DSBJ Annual Report 2025

72. Impairment loss on assets

In RMB

Amount of the current Amount of the previous

Item

period period

I. Impairment of inventories and contract fulfilling costs -580655500.36 -454659790.71

IV. Impairment of fixed assets -394440784.57

X. Impairment of goodwill -107244670.48 -89587280.51

Total -687900170.84 -938687855.79

73. Gain on disposal of assets

In RMB

Source of gain on disposal of assets Amount of the current period Amount of the previous period

Gain on disposal of fixed assets -387069056.35 -234749852.86

Gain on disposal of intangible assets 15589519.89

Total -371479536.46 -234749852.86

74. Non-operating revenue

In RMB

Amount of the previous Amount recognized in non-

Item Amount of the current period

period recurring gain or loss

Investment income 470697770.08 470697770.03

Penalties 2928769.29 4306009.83 2928769.29

Amounts that cannot be paid 542766.31 4141160.34 542766.31

Others 4259282.92 813226.46 4259282.97

Total 478428588.60 9260396.63 478428588.60

75. Non-operating expenses

In RMB

Amount of the previous Amount recognized in non-

Item Amount of the current period

period recurring gain or loss

Donations 6777980.00 7186576.91 6777980.00

Business restructuring

39985577.1239985577.12

expenditures

Loss on destruction and

retirement of non-current 7807614.60 8343315.44 7807614.60

assets

Penalties overdue fines and

2112615.155451363.412112615.15

liquidated damages

Others 208825.97 169773.26 208825.97

Total 56892612.84 21151029.02 56892612.84

178DSBJ Annual Report 2025

76. Income tax expenses

(1) Statement of income tax expenses

In RMB

Item Amount of the current period Amount of the previous period

Income tax expense 365773171.95 201638862.70

Deferred income tax expenses -68323941.81 181012059.37

Total 297449230.14 382650922.07

(2) Reconciliation of income tax expenses to accounting profit

In RMB

Amount of the current

Item

period

Total profit 1690416767.87

Income tax expenses calculated based on the tax rate applicable to the parent company 253562515.18

Effect of different tax rates applicable to subsidiaries -89818330.99

Effect of adjustment of income taxes for prior years 7964401.68

Effect of non-taxable incomes -76974220.94

Effect of non-deductible costs expenses and losses 26045262.64

Effect of using the deductible losses for which the deferred income tax assets were not recognized in

previous periods -7690829.09

Effect of deductible temporary differences or deductible losses not recognized for deferred tax assets

for the current period 262828400.66

Effect of super deduction of R&D expenses -78467969.00

Income tax expenses 297449230.14

77. Other comprehensive income

See the description in Notes V(I)43 for details.

78. Items of the cash flow statement

(1) Cash flows related to operating activities

Other cash receipts related to operating activities:

In RMB

Item Amount of the current period Amount of the previous period

Security deposit for acceptance bills 368078334.92 447811795.42

Government grants 547538144.73 336202054.86

Interest income 200834090.18 243071834.40

Temporary receipts payable and others 76906450.49 53123286.94

Total 1193357020.32 1080208971.62

Other cash payments related to operating activities

In RMB

Item Amount of the current period Amount of the previous period

Payment of period expenses in cash 854704179.51 806013008.87

Security deposit for acceptance bills 500750333.33 368078334.92

179DSBJ Annual Report 2025

Bank charges 11699633.43 33088044.64

Temporary payment receivable and

50322187.9016699230.27

others

Total 1417476334.17 1223878618.70

(2) Cash flows related to investing activities

Other cash receipts related to investing activities

In RMB

Item Amount of the current period Amount of the previous period

Recovery of term deposits 1284483800.00 690180814.95

Recovery of security deposit for

460202891.26

acquisition

Reversal of security deposit for

45098668.51230197429.36

investments

Total 1789785359.77 920378244.31

Other cash payments related to investing activities

In RMB

Item Amount of the current period Amount of the previous period

Term deposits 553929171.86 1325308422.77

Payment of remaining acquisition

109158061.37

amount

Security deposit for investments 44513067.74 4274055.74

Security deposit for the acquisition 894608795.21

Total 1493051034.81 1438740539.88

Cash payments related to significant investing activities

In RMB

Amount of the current Amount of the

Item

period previous period

Cash or cash equivalents paid in the period for business combination occurring in

4332904872.25

the period

Less: Cash and cash equivalents held by subsidiaries at the acquisition date -949627569.79

Total 3383277302.46

(3) Cash flows related to financing activities

Other cash receipts related to financing activities

In RMB

Item Amount of the current period Amount of the previous period

Security deposits 431070056.49 177359173.02

Proceeds from discounts on acceptance

1552857485.12836298582.66

bills and letters of credit

Total 1983927541.61 1013657755.68

Other cash payments related to financing activities

In RMB

Item Amount of the current period Amount of the previous period

Security deposits 315383108.30 131070056.49

Payment of rents 267230450.42 644317313.92

180DSBJ Annual Report 2025

Expenditures for repurchase of shares 100084437.00 25000846.30

Amount for ESOP repurchase 184599628.23

Payment of expenses for listing in Hong

7809923.30

Kong

Payments under bill financing 1785103507.45 729491972.95

Total 2660211054.70 1529880189.66

Changes in liabilities arising from financing activities

□ Applicable □ N/A

In RMB

Increase Decrease

Item Opening balance Closing balance

Cash change Non-cash change Cash change Non-cash change

Short-term borrowings 4810954130.69 7963955989.97 1754807565.83 6518243637.46 8011474049.03

Long-term borrowings

(including long-term

borrowings due within 7616333310.45 4785102775.90 243084626.07 3310143990.86 9334376721.56

one year)

Lease liabilities

(including lease

liabilities due with one 1483360719.42 1059174857.70 251579585.46 2290955991.66

year)

Dividends payable 118795180.63 118795180.63

Total 13910648160.56 12867853946.50 3057067049.60 10198762394.41 19636806762.25

(5) Significant activities that do not involve receipts and payments of cash in the current period but

affect the financial position of the enterprise or may affect cash flows of the enterprise in the future and

financial effects thereof

Amount of endorsed transfer for commercial bill not involving receipts and payments of cash

In RMB

Item Current period The same period of theprevious year

Amount of the commercial bill transferred by endorsement 2567847793.19 1923542351.47

Incl.: Payment for goods 2312864310.20 1658479539.00

Payment for acquisition of long-term assets such as fixed

assets 254983482.99 265062812.47

79. Supplementary information to the cash flow statement

(1) Supplementary information to the cash flow statement

In RMB

Amount of the Amount of the

Supplementary information

current period previous period

1. Reconciliation of net profit to cash flows from operating activities:

Net profit 1392967537.73 1085060914.05

Add: Allowance for impairment of assets 687900170.84 938687855.79

Provision for credit impairment 63742824.35 44109673.59

Depreciation of fixed assets right-of-use assets oil and gas assets and

productive biological assets 2605963395.44 2198097122.77

Amortization of intangible assets 125017158.53 99907909.26

Amortization of long-term deferred expenses 227134742.78 261921167.74

181DSBJ Annual Report 2025

Loss on disposal of fixed assets intangible assets and other long-term assets

(gain expressed with “-”) 371479536.46 234749852.86

Loss on retirement of fixed assets (gain expressed with “-”) 7807614.60 8343315.44

Loss on changes in fair value (gain expressed with “-”) -62022355.11 17898094.22

Financial expenses (income expressed with “-”) 454593062.75 151247342.16

Investment loss (income expressed with “-”) -3366779.73 15969561.73

Decrease in deferred tax assets (increase expressed with “-”) -109188793.32 240525211.30

Increase in deferred tax liabilities (decrease expressed with “-”) 40864851.51 -59513151.93

Decrease in inventories (increase expressed with “-”) -943226436.08 -463400406.42

Decrease in trade receivables (increase expressed with “-”) -2966822352.37 -445997039.57

Increase in trade payables (decrease expressed with “-”) 3884995338.69 657933275.42

Others -470697770.08 477990.07

Net cash flows from operating activities 5307141746.99 4986018688.48

2. Significant investing and financing activities not involving cash receipts and payments

Debt-to-capital swap

Convertible corporate bonds due within one year

Fixed assets acquired under finance leases

3. Net changes in cash and cash equivalents:

Closing balance of cash 6104722626.15 5343600382.37

Less: Opening balance of cash 5343600382.37 5644487018.31

Add: Closing balance of cash equivalents

Less: Opening balance of cash equivalents

Net increase in cash and cash equivalents 761122243.78 -300886635.94

(4) Components of cash and cash equivalents

In RMB

Item Closing balance Opening balance

I. Cash 6104722626.15 5343600382.37

Incl.: Cash on hand 620829.32 266540.67

Bank deposits immediately

6104101796.835343333841.70

available for withdrawal

III. Closing balance of cash and cash

6104722626.155343600382.37

equivalents

(6) Cash and bank balances not classified as cash and cash equivalents

In RMB

Amount of the current Amount of the

Item Reason for not classified as cash and cash equivalents

period previous period

Term deposits and May be unavailable for withdrawal due to pledge

596283232.701325308422.77

interest freeze or otherwise

Security deposit for May be unavailable for withdrawal due to pledge

426049076.84368078334.92

bills freeze or otherwise

Security deposit for May be unavailable for withdrawal due to pledge

295079875.64

factoring freeze or otherwise

Security deposit for May be unavailable for withdrawal due to pledge

14892991.9539986159.48

letters of credit freeze or otherwise

Security deposit for May be unavailable for withdrawal due to pledge

52679614.6991083897.01

letters of guarantee freeze or otherwise

May be unavailable for withdrawal due to pledge

Other security deposits 160576091.13 4274055.74

freeze or otherwise

182DSBJ Annual Report 2025

Total 1545560882.95 1828730869.92

81. Monetary items denominated in foreign currencies

(1) Monetary items denominated in foreign currencies

In RMB

Closing balance in foreign

Item Exchange rate Closing balance in RMB

currency

Cash and bank balances 4546583606.40

Incl.: USD 470016985.14 7.0288 3303655385.15

EUR 142661182.24 8.2355 1174886166.34

HKD 4369814.62 0.9032 3946816.56

THB 123476758.35 0.2225 27473578.73

SGD 2397096.94 5.4586 13084793.36

NTD 45615636.00 0.2231 10176848.39

MXN 13808841.30 0.3899 5384067.22

MAD 6296147.17 0.7672 4830404.11

JPY 29196359.35 0.0448 1307909.31

Others 53051844.30 0.0346 1837637.22

Accounts receivable 6902410216.45

Incl.: USD 759366265.94 7.0288 5337433610.04

EUR 179373653.66 8.2355 1477231724.72

HKD

NTD 383962021.00 0.2231 85661926.89

CZK 5482508.84 0.3392 1859667.00

MXN 572679.68 0.3899 223287.81

Long-term borrowings 2737185127.75

Incl.: USD

EUR 8800214.65 8.2355 72474167.75

HKD 2950300000.00 0.9032 2664710960.00

Other receivables 188837701.17

Incl.: EUR 14377438.86 8.2355 118405397.73

NTD 170366975.00 0.2231 38008872.12

USD 2443028.78 7.0288 17171560.69

MXN 20710717.82 0.3899 8075108.88

THB 29291404.04 0.2225 6517337.40

HUF 30958889.71 0.0213 659424.35

Short-term borrowings 1709217436.31

Incl.: EUR 99454575.16 8.2355 819058153.73

USD 111723633.81 7.0288 785283077.32

THB 471353731.51 0.2225 104876205.26

Accounts payable 4713296361.55

Incl.: USD 350731783.56 7.0288 2465223560.29

EUR 157419960.35 8.2355 1296432083.46

THB 2991634030.95 0.2225 665638571.89

NTD 921763045.00 0.2231 205645335.34

MXN 84703451.77 0.3899 33025875.85

MAD 20174878.58 0.7672 15478166.85

JPY 327570133.00 0.0448 14674159.25

CZK 36175527.70 0.3392 12270739.00

183DSBJ Annual Report 2025

HUF 171861395.00 0.0213 3660647.71

Others 1262389.29 0.9880 1247221.93

Other payables 503349756.32

Incl.: EUR 55742254.42 8.2355 459065336.28

USD 5155858.60 7.0288 36239498.93

THB 28300824.00 0.2225 6296933.34

NTD 7566228.00 0.2231 1688025.47

JPY 1338534.00 0.0448 59962.31

Non-current liabilities due

168963034.18

within one year

Incl.: EUR 19491162.09 8.2355 160519465.39

NTD 31536986.06 0.2231 7035901.59

USD 200271.34 7.0288 1407667.19

(2) Information about overseas operating entities including main places of business and functional

currencies of major overseas operating entities basis for the choice of functional currencies and reasons

for changes in functional currencies:

□ Applicable□ N/A

82. Leases

(1) The Company as the lessee

□ Applicable □ N/A

Sale and leaseback transactions

1) For information about right-of-use assets see the description in Notes V(I)16 to the Financial Statements for details.

2) For the Company’s accounting policies on short-term leases and leases of low-value assets see the description in Notes

III(XXVIII) to the Financial Statements for details. The amounts of short-term lease expenses and lease expenses of low-value

assets recognized in the profit or loss of the current period are as follows:

In RMB

Item Current period The same period of theprevious year

Short-term lease expenses 58364654.52 8044946.05

Total 58364654.52 8044946.05

3) Profit/loss and cash flow related to leases in the current period

In RMB

Item Current period The same period of theprevious year

Interest expense on lease liabilities 111289170.85 69674382.08

Total cash outflow for leases 325595104.94 652362259.97

(2) The Company as the lessor

The Company as lessor under operating leases

□ Applicable □ N/A

In RMB

Item Rental income Incl.: Income related to variable lease payments not included in lease receipts

Rental income 3495980.29

184DSBJ Annual Report 2025

Total 3495980.29

Annual undiscounted lease receipts in the following five years

□ Applicable □ N/A

In RMB

Annual undiscounted lease receipts

Item

Closing balance Opening balance

Year 1 943144.17 82450.00

Year 2 948715.60

Year 3 276952.60

VIII. Research and Development Expenses

In RMB

Item Amount of the current period Amount of the previous period

Direct costs 554640787.71 548167661.46

Labor costs 644047801.55 510711948.15

Depreciation 125586937.98 98435864.38

Others 107499527.58 109497070.24

Total 1431775054.82 1266812544.23

Incl.: Expensed R&D expenses 1417226723.87 1266812544.23

Capitalized R&D expenses 14548330.95

IX. Changes in the Scope of Consolidation

1. Business combination involving entities not under common control

(1) Business combination involving entities not under common control effected in the current period

In RMB

Revenues Net profit Cash flows

of the of the of the

Basis for acquiree acquiree acquiree

Date of Percentage Method of determinin from the from the from the

Acquisition Acquisition

Acquiree acquisition of shares acquisition g the acquisition acquisition acquisition

cost date

of shares acquired of shares acquisition date till the date till the date till the

date end of the end of the end of the

current current current

period period period

When the

GMD Group 2025-10-31 50985235 100.00 Acquisition 2025/10/31

1292325330118591.93494787.

3.60 control is 84.34 29 56

gained

When the

Source 2025-9-30 4358975888.59 97.479 Acquisition 2025/9/30

12661553

control is 14355349 31450326

Photonics 21.96 8.32 6.80

gained

Other information:

In June 2025 through a wholly owned subsidiary Multek Group (Hong Kong) Limited the Company entered into a Share

Purchase Agreement with the former shareholder of Source Photonics Holdings (Cayman) Limited (hereinafter referred to as

185DSBJ Annual Report 2025

Source Photonics) under which the Company acquired equity interests in Source Photonics with M&A loans and its own funds

and the Company subscribed to its convertible bonds where the consideration for the acquiring 100% of Source Photonics’ shares

was no more than USD 629 million; and the consideration for acquiring the interests in Source Photonics’s Employee Stock

Option Program (ESOP included in the acquisition solution) was no more than USD 58 million. In October 2025 pursuant to the

relevant provisions of the Share Purchase Agreement and the Accounting Standard for Business Enterprises the Company

included Source Photonics into the scope of consolidation.In May 2025 through a wholly owned subsidiary DSBJ Pte. Ltd. the Company acquired 100% equity interests in Groupe

Mécanique Découpage (hereinafter referred to as the GMD Group) and implemented debt restructuring at the amount of about

EUR 100 million. On October 31 2025 given that all the closing conditions set forth in the Share Purchase Agreement were met

the transaction parties handed over the equity interests in the target company in accordance with the provisions of the Share

Purchase Agreement.

(2) Acquisition cost and goodwill

In RMB

Acquisition cost GMD Group Source Photonics

--Cash 23.87 4358975888.59

--Fair value of non-cash assets

--Fair value of liabilities issued or assumed 509852329.73

--Fair value of equity securities issued

--Fair value of contingent consideration

--Fair value at the acquisition date of the equity interests held prior to

the acquisition date

--Others

Total acquisition cost 509852353.60 4358975888.59

Add: Fair value attributable to the ESOP 304121718.99

Less: Share of fair value of identifiable net assets acquired 980550123.68 1838004095.10

Excess of the share of fair value of identifiable net assets acquired over -470697770.08 2825093512.48

goodwill/acquisition cost

Method for determining the fair value of acquisition cost:

The acquisition cost for GMD Group is the sum of the nominal acquisition consideration paid by the buyer and the amount

of the debts assumed.The acquisition cost for Source Photonics is the amount of cash paid at the acquisition date and to be paid for gaining control

over the acquiree.

(3) Identifiable assets and liabilities of the acquirees at the acquisition date

In RMB

GMD Group Source Photonics

Fair value at the Carrying value at the Fair value at the Carrying value at the

acquisition date acquisition date acquisition date acquisition date

Assets 5986766091.71 5796402828.20 4904362843.36 4420012794.00

Cash and bank

balances 1051539248.57 1051539248.57 329592423.19 329592423.19

Accounts

receivable 1692531583.03 1692531583.03 1373807793.76 1373807793.76

Inventories 1172975686.31 1152107211.86 1264849666.35 1248205680.28

186DSBJ Annual Report 2025

Fixed assets 544405180.32 388141082.70 740395983.58 740395983.58

Intangible assets 66984471.20 53753876.49 523485193.25 55779129.96

Deferred tax

assets 107642423.06 107642423.06 56749549.52 56749549.52

Liabilities 5006072809.71 4960996223.06 3012204146.95 2939551639.55

Borrowings 981862985.85 981862985.85 568618155.09 568618155.09

Accounts payable 1452584091.50 1452584091.50 1493303419.97 1493303419.97

Provisions 174422380.97 174422380.97

Deferred tax

liabilities 86581575.15 41504988.50 140617696.70 67965189.30

Net assets 980693282.00 835406605.14 1892158696.41 1480461154.45

Less: Minority interests 143158.32 143158.32 6620175.19 6620175.19

Net assets acquired 980550123.68 835263446.82 1885538521.22 1473840979.26

Method for determining the fair value of identifiable assets and liabilities:

The fair value of identifiable assets and liabilities is determined with reference to the results of appraisal implemented by

appraisal institutions.

5. Changes in the scope of consolidation due to other reasons

Change in the scope of consolidation due to other reasons (such as new establishment of subsidiaries liquidation of subsidiaries

etc.) and relevant information:

1. Subsidiaries newly included in the scope of consolidation

Company name Method of acquisition Date of acquisition ofof shares shares Contribution amount

Percentage of capital

contribution

DSBJ Europe Holding Newly established 2025-12-26 EUR 100000 100.00%

2. Subsidiaries removed from the scope of consolidation

Method of disposal Date of disposal of Net assets at the date of Net profit from the beginningCompany name of shares shares disposal (RMB) of the period to the date ofdisposal

DSBJ International Deregistration 2025-12-28 -13876885.89

X. Interests in Other Entities

1. Interests in subsidiaries

(1) Composition of the enterprise group

In RMB

Principal Shareholding

Place of Nature of

Subsidiary place of percentage Method of acquisition

incorporation business

business Direct Indirect

Hong Kong Dongshan

Precision Union Hong Kong Hong Kong Business &

100.00% Established

Opoelectronic Co. China China investment

Limited

Dragon Electronix Business &

USA USA 100.00% Established

Holdings Inc. investment

Business combinations

Mutto Optronics

Suzhou Suzhou Manufacturing 100.00% involving entities not

Technology Co. Ltd.under common control

Multi-Fineline Electronix Singapore Singapore Business & 100.00% Business combinations

187DSBJ Annual Report 2025

Singapore Pte. Ltd. investment involving entities not

under common control

Source Photonics Business combinations

Business &

Holdings (Cayman) Cayman Cayman 97.48% involving entities not

investment

Limited under common control

Business combinations

Source Photonics

Chengdu Chengdu Manufacturing 97.48% involving entities not

(Chengdu) Co. Ltd.

under common control

Business combinations

MFLEX Suzhou Co.Suzhou Suzhou Manufacturing 100.00% involving entities not

Ltd.under common control

MFLEX Yancheng Co.Yancheng Yancheng Manufacturing 100.00% Established

Ltd.Business &

DSBJ Pte. Ltd. Singapore Singapore 100.00% Established

investment

Business combinations

Multek Industries

Zhuhai Zhuhai Manufacturing 100.00% involving entities not

Limited

under common control

Business combinations

Multek China Limited Zhuhai Zhuhai Manufacturing 100.00% involving entities not

under common control

Suzhou Dongyue New

Energy Technology Co. Kunshan Kunshan Manufacturing 100.00% Established

Ltd.Business combinations

Suzhou JDI Electronics

Suzhou Suzhou Manufacturing 100.00% involving entities not

Inc.under common control

(4) Disclosure of aggregated individually immaterial joint ventures and associates

In RMB

Closing balance/amount of the current Opening balance/amount of the previous

period period

Joint ventures:

Total carrying value of investments 126566432.55 155008795.68

Aggregate of the following calculated

according to the shareholding ratio

--Net profit -921784.97 -398084.25

Associates:

Aggregate of the following calculated

according to the shareholding ratio

--Total comprehensive income -921784.97 -398084.25

XI. Government Grants

2. Liabilities related to government grants

□ Applicable □ N/A

In RMB

Item Opening New grants Amount of Amount Other changes Closing Related to

188DSBJ Annual Report 2025

balance received in the non- transferred to in the current balance assets/income

current period operating other income in period

revenue the current

recognized period

in the

current

period

Deferred

585933889.89 404812164.61 219532996.02 118630075.01 889843133.49 Related to

income assets

Subtotal 585933889.89 404812164.61 219532996.02 118630075.01 889843133.49

3. Government grants recognized in profit or loss

□ Applicable □ N/A

In RMB

Item Amount of the current period Amount of the previous period

Government grants recognized in other

357530102.45483724850.14

income

Effect of financial interest subsidy on

2995675.45

total profit

Total 360525777.90 483724850.14

XII. Risks Associated with Financial Instruments

1. Risks arising from financial instruments

The Company’s objectives of risk management are to maintain a balance between risk and income minimize the negative

effect of risks on the operating results of the Company and maximize the interests of the shareholders and other equity investors.On the basis of such objectives of risk management the Company’s basic risk management policy is designed to identify and

analyze all kinds of risks facing by the Company set appropriate risk thresholds in risk management and monitor risks and

adherence to limits in a timely and reliable manner.The Company faces a variety of risks associated with financial instruments in its daily activities mainly including credit risk

liquidity risk and market risk. Below is a summary of the policies for managing such risks considered and approved by the

management.(I) Credit risk

Credit risk is the risk that one party to a financial instrument will cause a financial loss to the other party by failing to

discharge an obligation.

1. Credit risk management practice

(1) Assessment of credit risk

At each balance sheet date the Company assesses whether the credit risk of a financial instrument has increased significantly

since initial recognition. In assessing whether the credit risk has increased significantly since initial recognition the Company

takes into account reasonable and supportable information which is available without undue cost or effort including qualitative

and quantitative analysis based on historical data external credit risk rating and forward-looking information. The Company

determines the changes in default risk of financial instruments during their estimated lifetime through a comparison of the default

risk at the balance sheet date and the initial recognition date on an individual or collective basis.The Company determines that the credit risk of a financial instrument has increased significantly when one or more of the

following qualitative and quantitative standards are met:

189DSBJ Annual Report 2025

1) Quantitative standard mainly relates to the scenario in which at the balance sheet date the probability of default in the

remaining lifetime has risen by more than a certain percentage compared with the initial recognition; and/or

2) Qualitative standard mainly relates to significant adverse changes in the debtor’s business situation or financial position

and present or expected changes in technology market economy or legal environment that will have a material adverse effect on

the debtor’s ability to repay.

(2) Definition of default and credit-impaired assets

A financial instrument is in default or credit impaired when one or more of the following conditions are met:

1) significant financial difficulty of the debtor;

2) any breach by the debtor of contract terms binding on it;

3) it becomes probable that the debtor will enter bankruptcy or other financial reorganization;

4) the creditors of the debtor for economic or contractual reasons relating to the debtor’s financial difficulty having granted

to the debtor a concession that the creditors would not otherwise consider.

2. Measurement of expected credit impairment losses

The key factors in the measurement of expected credit impairment losses include the probability of default loss given

default and exposure to default risk. The Company has developed a model of the probability of default loss given default and

exposure to default risk on the basis of quantitative analysis of historical data (e.g. counterparty rating guarantee measures and

collateral type repayment method etc.) and forward-looking information.

3. See Notes V(I)3 V(I)4 V(I)7 and V(I)10 for the conciliation table of opening balances and closing balances of allowance

for impairment loss on financial instruments.

4. Credit risk exposure and credit risk concentration

The Company’s credit risk is primarily attributable to cash and bank balances and receivables. In order to control such risks

the Company has taken the following measures:

(1) Cash and bank balances

The Company deposits its bank balances and other monetary capital in financial institutions with relatively high credit

ratings so its credit risk is relatively low.

(2) Accounts receivable

The Company performs credit assessments on customers using credit settlement on an ongoing basis. The Company selects

approved and creditworthy customers based on the result of credit assessment and monitors the balance of accounts receivable

from them on an ongoing basis to avoid significant risk of doubtful accounts.As the Company only deals with approved and creditworthy third parties no collateral is required. The concentration of

credit risks are managed customer by customer. As of December 31 2025 the Company faced certain credit concentration risks.In particular 35.67% (December 31 2024: 54.89%) of the Company’s accounts receivable came from the top 5 customers

without any collateral or other credit enhancement.The Company’s maximum exposure to credit risk is the carrying value of each financial asset in the balance sheet.(II) Liquidity risk

Liquidity risk is the risk that the Company may not have enough cash to satisfy its obligation to deliver cash or other

financial assets due to the inability to liquidate financial assets at fair value in a timely manner or failure of counterparties to

discharge their contract liabilities acceleration of debts failure to generate expected cash flows or otherwise.In order to control such risk the Company utilizes a variety of financing tools such as settlement by means of notes bank

loans etc. combines long-term and short-term financing to optimize financing structure and maintains a balance between

financing sustainability and flexibility. The Company has obtained lines of credit from many commercial banks to satisfy its

working capital requirements and capital expenditures.Financial liabilities classified by remaining maturity

In RMB

190DSBJ Annual Report 2025

Closing balance

Item

Carrying value Undiscountedcontract amount Within 1 year 1-3 years Over 3 years

Bank loans 17345850770.59 18447118979.42 11256575000.94 2692839996.18 4497703982.29

Financial liabilities held for

trading 46545937.17 46545937.17 46545937.17

Notes payable 1002812950.68 1002812950.68 1002812950.68

Accounts payable 13043136687.34 13043136687.34 13043136687.34

Other payables 705336813.22 705336813.22 705336813.22

Lease liabilities (including

non-current liabilities due 2290955991.66 2507799521.86 591089880.28 1237264337.10 679445304.48

within one year)

Long-term payables

(including non-current 28115200.00 28115200.00 28115200.00

liabilities due within one year)

Subtotal 34462754350.66 35780866089.69 26673612469.63 3930104333.28 5177149286.77

(Continued)

Balance at the end of the previous year

Item

Carrying value Undiscountedcontract amount Within 1 year 1-3 years Over 3 years

Bank loans 12427287441.14 12945053630.60 7357404130.16 4070557149.80 1517092350.64

Financial liabilities held

for trading 82922390.17 82922390.17 82922390.17

Notes payable 935581272.50 935581272.50 935581272.50

Accounts payable 9659268990.43 9659268990.43 9659268990.43

Other payables 94163223.90 94163223.90 94163223.90

Lease liabilities

(including non-current

liabilities due within one 1483360719.42 1605316008.57 155598833.56 1394948589.61 54768585.40

year)

Long-term payables

(including non-current

liabilities due within one 49434786.31 49434786.31 49434786.31

year)

Subtotal 24732018823.87 25371740302.48 18284938840.72 5514940525.72 1571860936.04

(III) Market Risk

Market risk is the risk of fluctuation in the fair value or future cash flows of financial instruments due to changes in market

prices. Market risk mainly includes interest risk and foreign exchange risk.

1. Interest risk

Interest risk is the risk of fluctuation in the fair value or future cash flows of financial instruments due to changes in market

interest rates. Interest-bearing financial instruments with fixed interest rates expose the Company to fair value interest rate risk

while interest-bearing financial instruments with floating interest rates expose the Company to cash flow interest rate risk. The

Company determines the proportion of fixed-rate financial instruments and floating-rate financial instruments based on the market

environment and reviews and monitors the appropriateness of its portfolio of financial instruments on a regular basis. The cash

flow interest rate risk that the Company faces is primarily associated with the floating-rate bank loans owed by the Company.

191DSBJ Annual Report 2025

As of December 31 2025 the Company had bank loans of RMB 6241579337.64 (December 31 2024: RMB

2392686104.16) on which the interests were calculated on a floating interest rate. Supposing the interest rate changes by 50 basic

points while other variables remain unchanged the Company’s total profit and shareholders’ interest will not be materially

affected.

2. Foreign exchange risk

Foreign exchange risk is the risk of fluctuation in the fair value or future cash flows of financial instruments due to changes

in exchange rates. The Company’s foreign exchange risk relates mainly to foreign currency denominated monetary assets and

liabilities. When a short-term imbalance occurs on foreign currency denominated assets and liabilities the Company may trade

foreign currencies at market exchange rates when necessary in order to maintain the net risk exposure at an acceptable level.See Note V(V)1 to the Financial Statements for details of foreign currency denominated monetary assets and liabilities as of

the end of the reporting period.(IV) Hedge

Qualitative and Economic EffectiveCorresponding risk quantitative relationship between realization of the

Effect of the

Item management policy and information of the hedged item and expected risk

corresponding hedging

target activity on the riskhedged risks the hedging managementinstrument target exposure

To avoid potential risks

against the Company’s

expected production and The hedged risk

operation due to the is the risk of The future contracts

fluctuation in the prices price fluctuation change in the

of copper aluminum and of copper and reverse direction dueCash flow to the same risks of

hedging – gold and reduce the aluminum. Seefluctuation in the the description in price fluctuation of The implementation offuture operating cash flow Notes V.43 to the copper and The Company has the hedging businessescontracts caused by the fluctuation Financial aluminum expected set up relevant gives full play to the

in the prices of copper Statements for to be purchased and internal control hedging and value

aluminum and gold the quantitative sold measures for preservation features of

Company had hedging information. hedging to the futures and

businesses of copper and continuously derivative market so as

aluminum commodities. trace hedging to avoid the risks of

The expected sales businesses so as price fluctuation due toThe expected to be settled in USD to ensure the the price fluctuation insales to be settled

in USD are are in the same

realization of the commodities and foreign

Cash flow Manage the Company’s foreign currency

expected risk exchange hence

hedging – risks exposure of

subject to foreign corresponding to the management reducing the effect on

foreign expected sales of foreign

exchange risk future foreign target the normal operation of

exchange exchange to be settled in

exposure. See the exchange contracts the Company

future USD by using future

description in where the basic

contracts foreign exchange

Notes V.43 to the variable of the

contracts FinancialStatements for hedging instrument

quantitative and the hedged item

information. is the exchange rateof USD

(V) Transfer of financial assets

1. Basic information about transfer of financial assets

In RMB

Types of Nature of transferred Amount of transferred

transfer financial assets financial assets Derecognition Basis for determining derecognition

Note Accounts receivable

discounting financing 311264752.18 Derecognized

All most all the risks and returns have

been transferred

Note

endorsement Notes receivable 1780000.00 Derecognized

All most all the risks and returns have

been transferred

Note Accounts receivable

endorsement financing 743198117.88 Derecognized

All most all the risks and returns have

been transferred

Factoring of

accounts Accounts receivable 981561847.06

Not All most all the risks and returns have

derecognized been reserved

192DSBJ Annual Report 2025

receivable

Subtotal 2037804717.12

2. Financial assets derecognized due to transfer

In RMB

Item Method of transferring Amount of the financial Gains or losses related to thefinancial assets assets derecognized derecognition

Accounts receivable financing Endorsement/discounting 1054462870.06 87948.24

Subtotal 1054462870.06 87948.24

3. Assets and liabilities arising from transfer of financial assets and continued involvement

In RMB

Item Method of assets transfer Amount of assets arising from Amount of liabilities arisingcontinuous involvement from continuous involvement

Accounts receivable Factoring 981561847.06 981561847.06

Subtotal 981561847.06 981561847.06

XIII. Fair Value Disclosures

1. Closing balance of the fair value of assets and liabilities measured at fair value

In RMB

Closing balance of fair value

Item Level 2 fairLevel 1 fair value Level 3 fair value

value Total

measurement measurement

measurement

I. Recurring fair value measurement -- -- -- --

1. Financial assets at fair value

201553860.61201553860.61

through profit or loss

(2) Investment in equity

124912226.68124912226.68

instruments

Derivatives 65126316.01 65126316.01

Bank wealth management product 11515317.92 11515317.92

2. Accounts receivable financing 285277607.54 285277607.54

(III) Investment in other equity

442976297.74442976297.74

instruments

Total assets measured at fair value

929807765.89929807765.89

on a recurring basis

(VI) Financial liabilities held for

46545937.1746545937.17

trading

Total liabilities measured at fair

46545937.1746545937.17

value on a recurring basis

II. Fair value measurement on a

--------

non-recurring basis

193DSBJ Annual Report 2025

2. Basis for determining the market prices of items subject to recurring and non-recurring fair value

measurements within Level 1

1. The fair value of forward exchange settlement and sale transactions already authorized but not yet settled is determined

based on the forward exchange rates as confirmed with the transaction bank at the end of the reporting period.

2. The Company estimates the fair value by using the market method the method of discounting future cash flows etc. for

other equity instrument investments not listed. In the absence of a material change in the operating environment operating

conditions and financial conditions of the investee the Company uses the investment costs as the reasonable estimate of the fair

value.

3. The fair value of a note receivable is determined based on its face amount.

4. The fair value of an investment in equity instruments is determined based on the initial investment amount.

XIV. Related Parties and Related-party Transactions

1. Parent company of the Company

The ultimate controllers of the Company are YUAN Yonggang YUAN Yongfeng and YUAN Fugen.Name of natural person Relationship with the Percentage of ownership Percentage of voting rights heldCompany interest in the Company (%) in the Company (%)

YUAN Yonggang YUAN

Yongfeng and YUAN Fugen Actual controllers 33.26 33.26

2. Subsidiaries of the Company

See the description in Notes VII for details about the Company’s subsidiaries.

3. Joint ventures and associates of the Company

See the description in Notes VII for details about significant joint ventures or associates of the Company.Other joint ventures or associates that have carried out related-party transactions with the Company in the current period or the

previous periods with balances recorded in the current period:

Name of joint venture or associate Relationship with the Company

Suzhou Toprun Electric Equipment Co. Ltd. Associate

Suzhou Dongcan Optoelectronics Technology Co. Ltd. Associate

Multek International Development Limited Associate

4. Other related parties

Name of other related party Relationship with the Company

Hai Dixin Semiconductor (Nantong) Co. Ltd. Associate

Anhui Landun Photoelectron Co. Ltd. A company controlled by the actual controllers of the Company

Shanghai Corkuna New Material Technologies Co. Ltd. A company controlled by the actual controllers of the Company

Suzhou Corkuna New Material Technologies Co. Ltd. A company controlled by the actual controllers of the Company

194DSBJ Annual Report 2025

5. Related-party transactions

(1) Related-party commodity and service transactions

Purchase of goods and receipt of services from related parties

In RMB

Whether or not Amount of the

Amount of the Transaction

Related party Subject matter exceed the previous

current period quota approved

transaction quota period

Suzhou Dongcan Optoelectronics Purchase of

223196.55710133.35

Technology Co. Ltd. goods

Suzhou Dongcan Optoelectronics Acceptance of

50557.52

Technology Co. Ltd. services

Shanghai Corkuna New Material Purchase of

1434644.279595091.96

Technologies Co. Ltd. goods

Suzhou Corkuna New Material Purchase of

59343986.587766790.60

Technologies Co. Ltd. goods

Sale of goods and rendering of services to related parties

In RMB

Amount of the Amount of the

Related party Subject matter

current period previous period

Suzhou Toprun Electric Equipment Co. Ltd. Sale of equipment 253182.96

Suzhou Toprun Electric Equipment Co. Ltd. Software and services 683324.25

Suzhou Dongcan Optoelectronics Technology Co. Ltd. Sale of goods 1603.77

Suzhou Dongcan Optoelectronics Technology Co. Ltd. Rendering of services 49312.65 59554.04

Anhui Landun Photoelectron Co. Ltd. Rendering of services 75600.00

Anhui Landun Photoelectron Co. Ltd. Sale of goods 5070.90

Suzhou Corkuna New Material Technologies Co. Ltd. Sale of equipment

(2) Related-party guarantees

The Company as guarantor

In RMB

Whether the obligation

Amount Effective date Expiry date of

Obligor guaranteed has been

guaranteed of guarantee guarantee

discharged

Suzhou Toprun Electric Equipment Co. Ltd. 2000000.00 2025/1/25 2026/1/25 No

Suzhou Toprun Electric Equipment Co. Ltd. 6000000.00 2025/1/21 2026/1/21 No

Suzhou Toprun Electric Equipment Co. Ltd. 2000000.00 2025/8/22 2026/2/22 No

Suzhou Toprun Electric Equipment Co. Ltd. 5217971.96 2025/9/15 2026/7/15 No

Suzhou Toprun Electric Equipment Co. Ltd. 3790000.00 2025/10/21 2026/6/18 No

Suzhou Toprun Electric Equipment Co. Ltd. 992028.04 2025/8/18 2026/3/23 No

Suzhou Toprun Electric Equipment Co. Ltd. 4400000.00 2025/3/17 2026/3/16 No

195DSBJ Annual Report 2025

(7) Remunerations of key officers

In RMB

Item Amount of the current period Amount of the previous period

Remunerations of key officers 24517000.00 22357000.00

6. Amounts receivable from/payable to related parties

(1) Amounts receivable from related parties

In RMB

Closing balance Opening balance

Item Related party Allowance AllowanceBook

Book balance for doubtful for doubtful

balance

accounts accounts

Accounts Suzhou Dongcan Optoelectronics Technology Co.

370742.71150802.90318894.6493307.33

receivable Ltd.Accounts

Suzhou Toprun Electric Equipment Co. Ltd. 124120.00 620.60 11177.70 55.89

receivable

Accounts

Hai Dixin Semiconductor (Nantong) Co. Ltd. 1607132.92 1607132.92 1607132.92 1607132.92

receivable

Accounts

Anhui Landun Photoelectron Co. Ltd. 90498.90 4296.75

receivable

Other

Hai Dixin Semiconductor (Nantong) Co. Ltd. 1790748.55 1790748.55 1790748.55 1790748.55

receivables

Other

Multek International Development Limited 14106207.42 705310.37

receivables

(2) Amounts payable to related parties

In RMB

Item Related party Closing book balance Opening book balance

Accounts

Suzhou Dongcan Optoelectronics Technology Co. Ltd. 229916.81 298971.64

payable

Accounts

Shanghai Corkuna New Material Technologies Co. Ltd. 282921.53 1792220.15

payable

Accounts

Suzhou Corkuna New Material Technologies Co. Ltd. 27479253.79 4970486.19

payable

XVI. Commitments and Contingencies

As of the balance sheet date the Company did not have any significant commitment or significant contingency needing to be

disclosed.XVIII. Other Significant Information

The Company mainly engages in the sale of electronic circuits optical modules (including optical chips) precision

components photoelectric display modules and other products and manages and assesses its operating results by taking such

196DSBJ Annual Report 2025

businesses as a whole. Therefore the Company has no segment information to be disclosed. For breakdown information about the

Company’s revenue see the description in Notes V(II)1 to the Financial Statements.XIX. Notes to Key Items of the Standalone Financial Statements

1. Accounts receivable

(1) Accounts receivable by age

In RMB

Age Closing book balance Opening book balance

Within 1 year (inclusive) 1662114718.95 2998577516.40

Within 6 months 1546087059.15 1717998540.30

7-12 months 116027659.80 1280578976.10

1-2 years 1279507925.29 67754351.05

2-3 years 43980168.50 94214723.81

Over 3 years 87344953.06 75446354.06

3-4 years 19637039.23 3854595.17

4-5 years 11406818.31 48135349.97

Over 5 years 56301095.52 23456408.92

Total 3072947765.80 3235992945.32

(2) Notes receivable by method of recognition of allowance for doubtful accounts

In RMB

Closing balance Opening balance

Allowance for Allowance for

Book balance Book balance

doubtful accounts doubtful accounts

Type Carrying Carrying

Ratio of value Ratio of value

Amount % Amount provisio Amount % Amount provisio

n n

Allowance

355784355784146254146254

recognized 1.16% 100.00% 0.45% 100.00%

61.5461.5467.5567.55

individually

Incl.:

Allowance

303736691382296823322136778748314349

recognized 98.84% 2.28% 99.55% 2.42%

9304.2657.921046.347477.7763.402614.37

collectively

Incl.:

307294104716296823323599925003314349

Total 100.00% 3.41% 100.00% 2.86%

7765.80719.461046.342945.3230.952614.37

Allowance for doubtful accounts recognized collectively:

In RMB

Closing balance

Item Allowance for doubtful

Book balance Ratio of provision

accounts

Group of related parties

1767944954.35

within the scope of

197DSBJ Annual Report 2025

consolidation

Aging group 1269424349.91 69138257.92 5.45%

Total 3037369304.26 69138257.92

Allowance for doubtful accounts recognized collectively: Aging group

In RMB

Closing balance

Item Allowance for doubtful

Book balance Ratio of provision

accounts

Within 6 months 1190131880.25 5950659.40 0.50%

7-12 months 6397344.94 319867.25 5.00%

1-2 years 11634241.89 2326848.38 20.00%

2-3 years 1799999.84 1079999.90 60.00%

Over 3 years 59460882.99 59460882.99 100.00%

Total 1269424349.91 69138257.92

(3) Allowance for doubtful accounts recognized recovered or reversed in the current period

Allowance for doubtful accounts recognized in the current period:

In RMB

Changes in the current period

Opening

Type

balance Recovered or

Closing balance

Recognized Written off Others

reversed

Allowance

recognized 14625467.55 20952993.99 35578461.54

individually

Allowance

recognized 77874863.40 -8726605.48 10000.00 69138257.92

collectively

Total 92500330.95 12226388.51 10000.00 104716719.46

(5) The top 5 debtors in terms of closing balance of accounts receivable and contract assets

In RMB

Total closing % of total closing Closing balance of

Closing

balance of balance of allowance for doubtful

Closing balance of balance of

Company name accounts accounts accounts receivable and

accounts receivable contract

receivable and receivable and impairment of contract

assets

contract assets contract assets assets

Mutto Optronics

Technology Co. Ltd. 859189565.53 859189565.53 27.96

DSBJ Pte. Ltd. 345259894.85 345259894.85 11.24

Top 3 281720830.28 281720830.28 9.17 1450594.61

MFLEX Yancheng Co.Ltd. 281301206.19 281301206.19 9.15

Top 5 265510987.62 265510987.62 8.64 1339714.26

Total 2032982484.47 2032982484.47 66.16 2790308.87

2. Other receivables

In RMB

198DSBJ Annual Report 2025

Item Closing balance Opening balance

Dividends receivable 1430532996.21 1495758008.53

Other receivables 4833638901.75 4473728550.13

Total 6264171897.96 5969486558.66

Dividends receivable

1) Dividends receivable by category

In RMB

Item (or investee) Closing balance Opening balance

Hong Kong Dongshan Holding Limited 1014532996.21 1044758008.53

Yancheng Dongshan Precision

266000000.00266000000.00

Manufacturing Co. Ltd.Suzhou JDI Electronics Inc. 80000000.00 140000000.00

Suzhou Dongyue New Energy

70000000.0045000000.00

Technology Co. Ltd.Total 1430532996.21 1495758008.53

2) Significant dividends receivable aged over one year

In RMB

Reason for failure Whether or not impaired and

Item (or investee) Closing balance Age

to collect the basis for determination

To support the

Over 3

Hong Kong Dongshan Holding Limited 916129796.21 development of

years

the subsidiary

To support the

Yancheng Dongshan Precision Over 3

266000000.00 development of

Manufacturing Co. Ltd. years

the subsidiary

Total 1182129796.21

(3) Other receivables

1) Other receivables by nature

In RMB

Nature of accounts Closing book balance Opening book balance

Current accounts 4829937651.06 4469455999.04

Security deposit 5000.00 1325000.00

Loan and reserve fund 1947026.93 4407055.00

Temporary payment receivable 6377782.89 2639160.94

Total 4838267460.88 4477827214.98

2) Other receivables by age

In RMB

Age Closing book balance Opening book balance

Within 1 year (inclusive) 4699261104.15 4293041449.14

199DSBJ Annual Report 2025

1-2 years 134572600.27 179913329.38

2-3 years 1936000.00

Over 3 years 4433756.46 2936436.46

3-4 years 1765000.00 1367016.15

4-5 years 1250649.25 1414020.31

Over 5 years 1418107.21 155400.00

Total 4838267460.88 4477827214.98

3) Other receivables by the method of recognition of allowance for doubtful accounts

In RMB

Closing balance Opening balance

Allowance for Allowance for

Book balance Book balance

doubtful accounts doubtful accounts

Type Carrying Carrying

Ratio of value Ratio of value

Amount % Amount provisio Amount % Amount provisio

n n

Allowan

ce

recogniz 483826 462855 483363 447782 409866 447372

100.00%0.10%100.00%0.09%

ed 7460.88 9.13 8901.75 7214.98 4.85 8550.13

collectiv

ely

483826462855483363447782409866447372

Total 100.00% 0.10% 100.00% 0.09%

7460.889.138901.757214.984.858550.13

Allowance for doubtful accounts recognized collectively:

In RMB

Closing balance

Item Allowance for doubtful

Book balance Ratio of provision

accounts

Group of related parties

within the scope of 4829937651.06

consolidation

Aging group 8329809.82 4628559.13 55.57%

Incl.: Within 1 year 3896053.36 194802.67 5.00%

Over 3 years 4433756.46 4433756.46 100.00%

Total 4838267460.88 4628559.13

Recognition of allowance for doubtful accounts in accordance with the general model of expected credit impairment losses:

In RMB

Stage I Stage II Stage III

Allowance for doubtful 12-month expected Lifetime expected Lifetime expected Total

accounts credit impairment credit impairment loss credit impairment loss

loss (not credit impaired) (credit impaired)

Balance as at January 1

155649.5538578.843904436.464098664.85

2025

In the current period the

balance as at January 1

2025

200DSBJ Annual Report 2025

- Transferred to stage III -38578.84 38578.84

Recognized 39153.12 490741.16 529894.28

Balance as at December

194802.674433756.464628559.13

312025

6) The top 5 debtors in terms of closing balance of other receivables

In RMB

Closing balance

% of total closing

Nature of of allowance for

Company name Closing balance Age balance of other

account doubtful

receivables

accounts

Yancheng Dongshan Precision Current

618606036.63 Within 1 year 12.79%

Manufacturing Co. Ltd. accounts

Yancheng Dongshan Precision Current

906881008.02 1-2 years 18.74%

Manufacturing Co. Ltd. accounts

Mutto Optronics Technology Co. Current

628842502.71 1-2 years 13.00%

Ltd. accounts

Suzhou Dongyue New Energy Current

591030226.35 Within 1 year 12.22%

Technology Co. Ltd. accounts

Suzhou Yongchuang

Current

Communication Technology Co. 109656305.94 Within 1 year 2.27%

accounts

Ltd.Suzhou Yongchuang

Current

Communication Technology Co. 392140582.58 1-2 years 8.10%

accounts

Ltd.Dongguan Dongshan Precision Current

180000000.00 Within 1 year 3.72%

Manufacturing Co. Ltd. accounts

Dongguan Dongshan Precision Current

304142051.89 1-2 years 6.29%

Manufacturing Co. Ltd. accounts

Total 3731298714.12 77.13%

3. Long-term equity investments

In RMB

Closing balance Opening balance

Item Allowance for Allowance for

Book balance Carrying value Book balance Carrying value

impairment loss impairment loss

Investments in 10315147573 10181457573 9671242453. 9537552453.

133690000.00133690000.00

subsidiaries .40 .40 40 40

Investments in

associates and 108246781.23 17507056.47 90739724.76 107812202.38 17507056.47 90305145.91

joint ventures

10423394354102721972989779054655.9627857599.

Total 151197056.47 151197056.47.63.167831

(1) Investments in subsidiaries

In RMB

Investee Opening Opening Changes in the current period Closing Closing

201DSBJ Annual Report 2025

balance balance of balance balance of

(carrying allowance Allowance (carrying allowance

value) for Additional Reduced for Others value) for

impairment investment investment impairment impairment

loss loss loss

Dongguan Dongshan

Precision 34200000 34200000

Manufacturing Co. 0.00 0.00

Ltd.MFLEX Shanghai 2023777.3 2023777.3

Co. Ltd. 0 0

Shenzhen Qindao

Dongchuang 10000000 10000000

Investment 0.00 0.00

Partnership (L.P.)

Suzhou RF Top

Electronic 37285808 37285808

Communication Co. 3.14 3.14

Ltd.Suzhou Chengjia

Precision 80109368. 80109368.Manufacturing Co. 24 24

Ltd.Suzhou Dongdai

1530000.01530000.0

Electronic

00

Technology Co. Ltd.Suzhou Dongke

Enterprise 15238909 15238909

Management Co. 6.00 6.00

Ltd.Suzhou Dongkui 12100000. 12100000.Lighting Co. Ltd. 00 00

Suzhou Jebson

Intelligent 255000.00 255000.00

Technology Co. Ltd.Suzhou Yongchuang

4515827145158271

Communication

0.630.63

Technology Co. Ltd.Hong Kong

Dongshan Precision 37445651 13369000 37445651 13369000

Union Opoelectronic 50.00 0.00 50.00 0.00

Co. Limited

Hong Kong

452677886439051210965830

Dongshan Holding

0.000.0000.00

Limited

Yancheng Dongshan

Precision 10936196 10936196

Manufacturing Co. 10.92 10.92

Ltd.Yancheng Dongshan

Business 3067267.2 3067267.2

Management Co. 0 0

Ltd.Yancheng Dongshan

2804014028040140

Communication

3.773.77

Technology Co. Ltd.Suzhou JDI 13826840 13826840

202DSBJ Annual Report 2025

Electronics Inc. 03.83 03.83

Suzhou Dongshan

20010000.20010000.

Industrial Investment

0000

Co. Ltd.Shanghai Dongxin

80000000.80000000.

New Energy

0000

Technology Co. Ltd.Yancheng

Dongchuang

4500000045000000

Precision

0.000.00

Manufacturing Co.Ltd.Suzhou Dongyue

5000000050000000

New Energy

0.000.00

Technology Co. Ltd.Multek China

71324.5271324.52

Limited

Mutto Optronics

824778.48824778.48

Technology Co. Ltd.MFLEX Suzhou Co. 7193259.6 7193259.6

Ltd. 0 0

Yancheng Mutto

Optronics 47549.64 47549.64

Technology Co. Ltd.MFLEX Yancheng 4175696.8 4175696.8

Co. Ltd. 9 9

Multek Industries 2425059.7 2425059.7

Limited 2 2

Dongwei Smart

14216.2614216.26

Suzhou Co. Ltd.Multek Zhuhai

Enterprise

927217.26927217.26

Management Co.Ltd.

9537552413369000643905121018145713369000

Total

53.400.000.00573.400.00

(2) Investments in associates and joint ventures

In RMB

Changes in the current period

Openi Invest Closin

Openi ng Adjustment Declar Closin g

ng balanc mentincom ed Allow g balanc

balanc e of toAdditi Reduc e or Other cash ance balanc e of

Investee e allowa otheronal ed loss change divide for e allowa

(carryi nce for compr Othersinvest invest under s in nds or impair (carryi nce for

ng impair ehensiment ment the equity profit ment ng impair

value) ment veequity distrib loss value) ment

loss incommetho ution loss

e

d

Associate

Suzhou Toprun 11784 11817

32656

Electric 413.3 069.9.54

Equipment Co. 9 3

203DSBJ Annual Report 2025

Ltd.Shenzhen Nanfang

1750717507

Blog Technology

056.4056.4

Development Co.

77

Ltd.Shanghai Fu Shan

Precision

Manufacturing

Co. Ltd.Suzhou LEGATE

11492-10247

Intelligent

208.41245171.8

Equipment Corp.

0036.519

Ltd.Suzhou Dongcan

-

Optoelectronics 3316 2693

62337

Technology Co. 472.49 102.45

0.04

Ltd.Jiangsu Nangao

Intelligent -

34422602

Equipment 83984

835.16994.36

Innovation Center 0.80

Co. Ltd.Jiaozuo Songyang

24392-22181

Photoelectric

091.72210612.2

Technology Co.

0479.455

Ltd.Suzhou Yongxin

3587741197

Jingshang Venture 5320

124.7773.8

Capital 649.11

78

Partnership (L.P.)

90305175079073917507

43457

Total 145.9 056.4 724.7 056.4

8.85

1767

4. Operating revenue and operating costs

In RMB

Amount of the current period Amount of the previous period

Item

Revenue Cost Revenue Cost

Primary business 4022260005.83 4006822960.37 4190338512.76 4025950010.51

Other businesses 614201978.48 29162663.69 560542168.15 45500518.40

Total 4636461984.31 4035985624.06 4750880680.91 4071450528.91

5. Investment income

In RMB

Item Amount of the current period Amount of the previous period

Income from long-term equity

248403200.00655000000.00

investments under cost method

Income from long-term equity

434578.855584848.30

investments under the equity method

Investment income from the disposal of

-64763689.49

long-term equity investments

204DSBJ Annual Report 2025

Investment income from the disposal of

320300.00

financial assets held for trading

Dividend income from other equity

instrument investments during the 1713379.59

holding period

Discount loss on accounts receivable

-10120691.74

financing

Bank wealth management product -2651138.83

Total 240750766.70 593170019.98

XX. Supplementary Information

1. Statement of non-recurring gain or loss for the current period

□ Applicable □ N/A

In RMB

Item Amount Remark

Gain or loss from disposal of non-current assets -384012866.89

Government grants recognized in profit or loss (excluding the government grants that

are closely related to the business of the Company conform to the applicable policies 331688417.02

of the country are provided in accordance with the established standards and

continuously affect the Company’s profit or loss)

Gain or loss on changes in fair value of financial assets and financial liabilities held

by non-financial entities and gain or loss on disposal of financial assets and financial 69600586.93

liabilities except for effective hedges held in the ordinary course of business

Other non-operating revenues and expenses -41631510.60

Investment income

arising from

business

Other gain or loss within the meaning of non-recurring gain or loss 470697770.08 combinations

involving entities

not under common

control

Less: Effect on income tax 23035787.38

Effect on minority interests (exclusive of tax) 3234970.24

Total 420071638.92 --

2. Return on equity and earnings per share

Earnings per share

Weighted average return

Profit for the reporting period

on net assets Basic earnings per share Diluted earnings per share

(RMB/share) (RMB/share)

Net profit attributable to ordinary

6.89%0.790.79

shareholders of the Company

Net profit attributable to ordinary

shareholders of the Company after 4.80% 0.55 0.55

deduction of non-recurring gain or loss

205

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