Stock Code: 200771 Stock ID: Hangqilun B Announcement No.:2025-124

Hangzhou Turbine Power Group Co. Ltd.Announcement on the Implementation of

Cash Option in Relation to the Share Swap Merger of The Company by Hangzhou Hirisun

Technology Incorporated.The members of the Board and the Company acknowledge being responsible for the truthfulness

accuracy and completeness of the announcement. There are no false records misleading

statements or significant omissions in this announcement.Special Reminder: As the current trading price of the Company's shares is higher than the cash option

exercise price exercising the cash option may result in losses for investors. Investors are advised to

exercise caution in their decision-making.Important Notes:

1. The Company's stock (Stock code: 200771) hasbeen continuouslysuspended from trading starting November

5 2025. Afterwards HTC stock enter the stages of cash option distribution exercise declaration and exercise

settlement and will no longer be traded.Upon completion of the cash option implementation the Company

will apply to the Shenzhen Stock Exchange for the termination of its listing. The shares held by the Company's

shareholders will be converted into Hirisun shares upon implementation of the share swap and will be listed

and traded on the Shenzhen Stock Exchange.

2.The Company has distributed the cash options to the dissenting shareholders registered after the close of the

last trading day for the cash options. A total of 33079662 cash options will be distributed this time.

13.Eligible dissenting shareholders who have received the cash option may exercise it for all or part of their

shares of the Company at a price of HKD 7.54 per share during the exercise hours (From November 192025 to

November 25 2025 on trading days )from 9:30 to 11:30 in the morning and 13:00 to 15:00 in the afternoon on

the exercise date(s) to be announced separately transferring their shares of the Company to the cash option

provider Hangzhou Capital.Registered dissenting shareholders holding the following shares are not entitled to exercise the cash option for

their shares:* Shares of the Company with restricted rights such as those subject to pledges other third-party

rights judicial freeze or other transfer restrictions under laws and regulations; * Shares for which the

legitimate holder has provided a written waiver of the dissenting shareholder's cash option to the Company; *

Other shares that are not eligible for cash option exercise under applicable laws. The aforementioned shares

ineligible for the cash option will be converted into shares issued by Hirisun on the share swap date according

to the share swap ratio.

4.According to the Shenzhen Stock Exchange Self-Regulatory Guidelines for Listed Companies No. 1 -

Business Handling (2025 Revision) if the premium ratio between the reference price of the underlying shares

and the agreed cash option price reaches or exceeds 50% the listed company may apply to provide the cash

option exercise service to shareholders through a manual process. Premium Ratio = (Reference Price of

Underlying Shares - Agreed Cash Option Price) / Agreed Cash Option Price × 100%. HTC's reference share

price takes the closing price of HKD 13.09 per share on the trading day prior to the initial disclosure of the

prompting announcement for exercising the cash option representing a premium of 73.61% over the cash

option exercise price.The Company will implement the cash option through a manual exercise method. The exercise and settlement

of the cash option will be completed manually. For specific operational details regarding manual exercise

please refer to "IV. Method for Exercising the Cash Option" -> "(1) Exercise Confirmation" below.

5.As of November 4 2025 (the Company's last trading day) the closing price of the Company's stock is 13.30

HKD/share which represents a premium of 76.39/% over the cash option exercise price. If investors exercise

the cash option it may result in certain losses. Please pay attention to investment risks.

26.This announcement is for informational purposes only regarding the specific arrangements for the

distribution of the cash option to the Company's shareholders and related matters concerning its exercise. It

does not constitute advice regarding the exercise of the cash option. Investors are reminded to pay attention to

investment risks.For detailed information regarding this share swap merger plan please read the full text of the Report on the

Share Swap Merger of Hangzhou Turbine Power Group Co. Ltd. by Hangzhou Hirisun Technology

Incorporated and Its Related-Party Transaction (Draft) (Registration Version) and the Announcement on

Adjusting the Share Swap Price etc. for the Share Swap Merger Following the Implementation of the 2024

Annual Profit Distribution published by the Company on September 12 2025 and June 14 2025 on the

websites of the Shenzhen Stock Exchange (www.szse.cn) and CNINF (www.cninfo.com.cn) as well as

relevant documents and promptly follow subsequent relevant announcements issued by the Company.I. Definitions

In this announcement unless otherwise specified the following terms shall have the meanings set forth below:

HTC / The Company Refers to Hangzhou Turbine Power Group Co. Ltd.Hirisun Refers to Hangzhou Hirisun Technology Incorporated

Hangzhou Capital Refers to Hangzhou State-owned Capital Investment and Operation Co. Ltd.This Share Swap Merger / This Refers to The transaction whereby Hirisun issues A-shares for share swap merger of HTCMerger / This Transaction aimed at all HTC shareholders

Share Swap Refers to In this share swap merger the act whereby shareholders swap their HTC sharesfor A-shares issued by Hirisun specifically for this share swap merger

A shareholder of HTC who voted effectively against the relevant proposal(s)

concerning the merger plan and the relevant proposal(s) concerning the

execution of the merger agreement at the general meeting of shareholders

Dissenting Shareholder Refers to convened by HTC to vote on this share swap merger and who continuously held

the shares representing such dissent rights until the implementation date of the

cash option for HTC's dissenting shareholders and who completed the relevant

application procedures within the specified timeframe

The right granted to dissenting shareholders of HTC in this share swap merger.Cash Option Refers to Dissenting shareholders of HTC who apply to exercise this right may during thecash option exercise period require the cash option provider to purchase all or

part of their HTC shares for cash

Cash Option Provider Refers to Hangzhou Capital – In this transaction Hangzhou Capital will provide cashoption to the dissenting shareholders of HTC

Cash Option Implementation The date on which the cash option provider acquires some or all of the HTC

Date Refers to shares tendered by dissenting shareholders exercising the cash option and paysthe cash consideration to those shareholders

3CSRC Refers to China Securities Regulatory Commission

SZSE Refers to Shenzhen Stock Exchange

CSDC Shenzhen Branch Refers to China Securities Depository and Clearing Corporation Limited Shenzhen Branch

Cash Option Record Date(B

shares are the last trading day) Refers to November 42025

Cash option declaration Date /

Declaration period/During the Refers to From November 19 2025 to November 25 2025 on trading days from 9:30 todeclaration period 11:30 in the morning and 13:00 to 15:00 in the afternoon (5 trading days）

II. Shareholders Entitled to Exercise the Cash Option

HTC intends has distributed the cash option to dissenting shareholders. All dissenting shareholders of

HTC registered with CSDC Shenzhen Branch during the cash option exercise period may exercise such option

for all or part of their shareholdings in HTC during the specified exercise period in accordance with the

provisions of this announcement.The target shareholders who have obtained the cash option and complete the

valid declaration procedures during the declaration dayduring the declaration date(Trading days between

November 192025 and November 252025) from 9:30–11:30 in the morning and 13:00–15:00 in the afternoon

can declare and exercise the cash option in accordance with the Company's regulations.Registered dissenting shareholders of HTC must meet all the following conditions simultaneously to

exercise the cash option: 1. Voted effectively against the relevant proposal(s) concerning the Merger Plan and

all sub-proposals voted on item-by-item and the relevant proposal(s) concerning the execution of the Merger

Agreement at the General Meeting of Shareholders for this share swap merger; 2. Continuously held the

shares representing such dissent rights from the record date of HTC's General Meeting of Shareholders

approving this share swap merger until the cash option implementation date remaining as effectively

registered shareholders of HTC; 3. Successfully completed the relevant application procedures during the cash

option exercise period. A valid application must be made during the cash option exercise date for a number of

shares not exceeding the shareholding amount as of the record date of HTC's General Meeting of Shareholders

for approving this share swap merger. Shareholders meeting the above conditions are only entitled to exercise

the cash option for the shares against which they cast a valid dissenting vote. The number of shares for which a

dissenting shareholder is entitled to the cash option shall be determined based on the distribution results from

4CSDC Shenzhen Branch. The rules for securities accounts margined for securities trading of securities

companies are consistent with those for ordinary securities accounts.Registered HTC dissenting shareholders holding the following shares are not entitled to exercise the cash

option for their shares: 1. HTC shares with restricted rights such as those subject to pledges other third-party

rights judicial freeze or other transfer restrictions under laws and regulations; 2. Shares for which the

legitimate holder has provided a written waiver of HTC dissenting shareholder's cash option to HTC; 3. Other

shares that are not eligible for cash option exercise under applicable laws. The aforementioned shares

ineligible for the cash option will be converted into shares issued by Hirisun on the share swap implementation

date according to the share swap ratio.According to the terms of this share swap merger dissenting shareholders of HTC who complete the valid

application procedures during the declaration date (Trading days between November 192025 and November

252025)from 9:30–11:30 in the morning and 13:00–15:00 in the afternoonmay exercise the cash option in

accordance with the Company's provisions.For HTC shares for which the cash option is successfully exercised Hangzhou Capital will pay cash

consideration to the shareholders exercising the option and will acquire the corresponding shares.III. Basic Terms of the Cash Option

(1) Code and Abbreviation of the Cash Option

Code: 238006

Abbreviation:杭汽 HQP1

(2) Underlying Security of the Cash Option

Underlying Security Code: 200771

Underlying Security Abbreviation: Hangqilun B

(3) Distribution Method of the Cash Option

1. The cash option has distributed based on the securities account used by the dissenting shareholder when

voting.

2. If a dissenting shareholder's securities account is custodied at two or more trading units (securities firm

branches) and holds shares of the Company as of the cash option record date the cash option will be

5distributed sequentially based on the descending order of the number of shares held at each trading unit as of

the cash option record date until the actual number distributed equals the number of cash options the

shareholder is entitled to.

(4) Distribution Ratio and Quantity of the Cash Option

HTC shareholders are entitled to one (1) cash option for each (1) share held that is eligible for the cash

option.A total of 33079662 cash options will be distributed this time.

(5) The value and Delta value of the cash option

According to the calculation method stipulated in the "Self-Regulatory Guidelines for Listed Companies No. 1

- Business Processing (2025 Revision) " of the Shenzhen Stock Exchange The right value of the cash option

for this distribution is HKD 0.04 The Delta value is -2.40%.

(6) Listing Arrangements for the Cash Option

Will not be listed for trading.

(7) Exercise Ratio of the Cash Option

The exercise ratio is 1:1 meaning the holder of one (1) cash option is entitled to sell one (1) share of the

Company to the cash option provider.

(8) Exercise Price of the Cash Option

The exercise price for the HTC cash option is HKD 7.54 per share.

(9) Exercise Method for the Cash Option

Amanual exercise method will be used.

(10) Exercise Period for the Cash Option

From November 19 2025 to November 25 2025 on trading days from 9:30 to 11:30 in the morning and 13:00

to 15:00 in the afternoon.

(11) Disposal of Unexercised Rights after Expiry

Any cash option not exercised upon the conclusion of the cash option exercise period will be void.IV. Method for Exercising the Cash Option

(1) Exercise Confirmation

61. During the manual exercise period for the cash option shareholders intending to exercise the cash option

shall complete and sign the Investor Manual Exercise Confirmation Form (See Appendix I).

2. Shareholders intending to exercise the cash option shall submit the aforementioned Confirmation Form

along with the following supporting documents: (1) For overseas corporate shareholders: Including notarized

valid business registration documents copy of stock account card certificate of responsible person and copy of

the responsible person's valid identification document (all affixed with the company seal). If the responsible

person authorizes another person to handle the matter a Power of Attorney (signed or stamped by the

institution's responsible person and affixed with the institution's seal) and a copy of the authorized

representative's valid identification document must also be provided; (2) For domestic individual shareholders:

Including copy of ID card copy of securities account; (3) For overseas individual shareholders: Copy of valid

identification document copy of stock account card. If another person is authorized to handle the matter a

Power of Attorney and a copy of the authorized representative's valid identification document must also be

provided. The aforementioned shareholders must also submit proof of shareholding as of after the market close

on November 4 2025. The cash option exercise application materials must be submitted to the Board of

Directors of the Company via email or postal mail within the designated exercise period. The time of receipt

for submissions via email or postal mail must fall within the valid exercise period. Submissions with

incomplete documentation or incorrect information will be deemed invalid.Application materials submitted by overseas investors shall be in Chinese. If both Chinese and foreign

language texts are provided the Chinese text shall prevail.

3.Contact for declaration is as follows:

（1）E-mail：lixiaoyang@htc.cn

（2）Express declaration contact information:0571-85780438，Address: No.1188 Dongxin Road Gongshu

District Hangzhou

（3）Contact Person: Li Xiaoyang

(2) Pre-Exercise Confirmations

1. Eligible shareholders may choose to exercise the cash option in full or in part.

72. Prior to submitting the cash option exercise application entitled shareholders shall confirm that the number

of options they intend to exercise does not exceed the number of cash option rights held in their securities

account and that there are a sufficient number of the Company's shares in the securities account. If the holder

of frozen or pledged shares intends to exercise the cash option the freeze or pledge shall be lifted prior to

application. If an entitled shareholder applies to exercise a number of cash options greater than the number of

actually held unfrozen and unpledged shares in their securities account during the exercise period the valid

exercise quantity shall be the number of actually held unfrozen and unpledged shares; If the number applied

for is less than or equal to the number of actually held unfrozen and unpledged shares the valid exercise

quantity shall be the number of cash options applied for.

3. Except for compulsory judicial transfer shares for which the cash option has been exercised cannot be

transferred further or used to establish pledges or other third-party rights. If such shares are subject to a

compulsory judicial transfer the exercised cash option for these shares becomes invalid from the time of the

judicial transfer.

4. Investors holding the underlying shares through margin trading credit securities accounts who need to

exercise the cash option shall transfer such shares from their credit securities accounts to their corresponding

ordinary securities accounts no later than the cash option record date (the cash option will be distributed only

after such transfer). On the cash option distribution date the cash option corresponding to these shares will be

credited to the investor's ordinary securities account. Investors may only exercise the cash option through their

ordinary securities accounts during the exercise period.

5. Investors who have engaged in agreed repurchase-style securities transactions and need to exercise the cash

option shall complete the early repurchase procedures no later than the trading day preceding the cash option

record date.

6. Investors participating in share pledge-style repurchase transactions who need to exercise the cash option

shall complete the early repurchase procedures no later than the cash option record date.

7. The cash option has distributed based on the securities account used by the applicant for voting. If a cash

option applicant conducts actions such as transfer of custody between the cash option record date and the end

of the cash option exercise period (specific dates to be announced separately) which may lead to a change in

8the custodian trading unit (securities firm branch) for the dissenting shareholder's securities account it may

prevent the dissenting shareholder from exercising the option. Therefore dissenting shareholders are

specifically advised to avoid such actions during this period.

(3) Stock Trading During Exercise Period

Trading of the Company's shares will be suspended during the cash option exercise period.

(4) Specific Settlement Process Upon Exercise

Upon successful exercise the corresponding number of cash option rights and shares of the Company will be

deducted from the entitled shareholder's securities account. Within ten business days after the shares related to

the validly exercised cash options are transferred and registered under the name of the cash option provider the

cash option provider will pay cash HKD7.54 per shareto the account designated by the relevant entitled

shareholder while withholding applicable taxes and fees arising from the share transfer.

(5) Any cash options not exercised in an entitled shareholder's securities account after the expiration of the

exercise period will be void.

(6) Fees

Entitled shareholders shall bear any costs incurred in submitting or withdrawing a manual exercise application

for the cash option. Relevant taxes and fees arising from the exercise of the cash option shall be borne by the

dissenting shareholders exercising the cash option the cash option provider and other relevant parties in

accordance with the provisions of relevant laws regulations regulatory authorities and securities registration

and settlement institutions. If there are no clear provisions in laws regulations by regulatory authorities or

securities registration and settlement institutions the parties shall resolve the matter through consultation with

reference to market practices.V. Third-Party Providing the Cash Option and Its Fulfillment Capability

The cash option provider for HTC shares in this transaction is Hangzhou Capital. Hangzhou Capital is the

first municipal-level state-owned capital investment and operating platform in Hangzhou wholly funded by

the state with a registered capital of RMB 10 billion. Hangzhou Capital maintains a sound credit status

possesses strong financing capability and has the capacity to fulfill its obligations.VI. Cash Option Distribution and Implementation Schedule

9Date Matter

October 28 2025 Publication of the indicative announcement regarding the distribution andimplementation of the cash option by HTC

November 4 2025 Record date for the cash option of HTC shares (final trading day for B-shares)

November 5 2025 Trading halt for HTC shares commences on this date continuing until the terminationof listing

From November 192025 to November

25 2025 on trading days from 9:30 to During the cash option declaration period The Company will publish a prompting

11:30 in the morning and 13:00 to announcement on the first day and the deadline for the declaration of the acquisition

15:00 in the afternoon (5 trading claim right. The declaration deadline is at 3:00 PM on November25 2025days）

November 262025 Announcement of Cash Option Declaration Results and Continued Suspension ofTrading

VII. Explanation Regarding the Rights of Entitled Shareholders

Although this share swap merger provides entitled shareholders with a cash option it does not obligate them to

accept the exercise price in this announcement and tender their shares accordingly. Entitled shareholders may

choose to either sell the corresponding shares to Hangzhou Capital at the price stated in this announcement or

convert their shares into Hirisun shares for listing and trading on the SZSE.VIII. Contact Person and Information

Contact Person:LiXiaoyang Wang Caihua

Office Address: No.1188 Dongxin Road GongshuDistrictHangzhou

Postal code: 310022

Tel:（0571）85780438(0571）85784795

Fax:(0571)85780433

This announcement is hereby made.The Board of Directors of Hangzhou Turbine Power Group Co. Ltd.November 142025

10Appendix I

Investor Manual Exercise Confirmation Letter

Hangzhou Turbine Power Group Co. Ltd. :

Applicant's Statement: I/Our company hereby declare that I/we entrust Hangzhou Turbine Power

Group Co. Ltd. (hereinafter referred to as “HTC”) to file the exercise of the cash option under the condition

of being fully informed of the relevant circumstances regarding the cash option exercise filing.I/Our company (ID number/business license number:

Shenzhen securities account number:

correspondence address: ) is a

shareholder of HTC. In the matter of Hirisun's share-exchange merger acquisition of HTC I/Our

company as a shareholder of the acquired party HTC have obtained a total of __________ shareholder

cash options (Right Code:238006 Right Name:杭汽 HQP1).According to your company's announcement dated November 13 2025 titled “Announcement onthe Distribution of Cash Option in the Share Exchange Absorption Merger of Hangzhou Turbine PowerGroup Co. Ltd.by Hangzhou Hirisun Technology Incorporated.” I/our company hereby apply to

exercise the cash option rights (Right Code:238006 Right Name:杭汽 HQP1) held in the custodial unit

(Custodial Unit Name: Custodial Unit Code: ) for a quantity of.Applicant's ID number (or business license number):

Applicant's name (signature/stamp):

Applicant's bank of account:

Applicant's receiving account:

Contact phone number:

Stamp (or fingerprint):

Date: ___________

11