（在中華人民共和國註冊成立的股份有限公司）

(a joint stock limited company incorporated in the People’s Republic of China with limited liability)

（股份代碼：2600）

(Stock Code: 2600)

2 February 2024

Dear registered shareholder(s)

Arrangement of Electronic Dissemination of Corporate Communications

Pursuant to Rule 2.07 of the Rules Governing The Listing of Securities on The Stock Exchange of Hong Kong Limited under the expansion of paperless listing

regime and electronic dissemination of corporate communications that came into effect on 31 December 2023 Aluminum Corporation of China Limited* (the

“Company”) is writing to inform you that the Company has adopted electronic dissemination of corporate communications (the “Corporate Communications”)

which means any documents issued or to be issued by the Company including but not limited to (a) the directors’ report its annual accounts together with a copy

of the auditors’ report and where applicable its summary financial report; (b) the interim report and where applicable its summary interim report; (c) a notice of

meeting; (d) a listing document; (e) a circular and (f) a proxy form.Please note that both the English and Chinese versions of all future Corporate Communications will be available electronically on the website of the Company at

www.chalco.com.cn and the HKEXnews website at www.hkexnews.hk in place of printed copies.Solicitation of electronic contact details

To ensure timely receipt of the Actionable Corporate Communications(Note) the Company recommends you provide your email address by scanning your personalized

QR code printed on the enclosed reply form (the “Reply Form”). Alternatively you may sign and return the Reply Form to the Company’s H share registrar (the

“H Share Registrar”) Hong Kong Registrars Limited at 17M Floor Hopewell Centre 183 Queen’s Road East Wan Chai Hong Kong.If the Company does not receive a functional email address in your reply until such time that the functional email address is provided to the H Share

Registrar the Company will send the Actionable Corporate Communications(Note) in printed form in the future.If you want to receive the Corporate Communications in printed form please complete the Reply Form on the reverse side and send it to the H Share Registrar or

send an email to AluminumCorp.ecom@computershare.com.hk specifying your name address and request to receive the Corporate Communications in printed

form. Please note that such instruction shall be valid for one year starting from the receipt date of your instruction and will expire thereafter.Should you have any queries relating to this letter please contact the H Share Registrar at (852) 2862 8688 during business hours from 9:00 a.m. to 6:00 p.m. (Hong

Kong time) Mondays to Fridays excluding Hong Kong public holidays.Yours faithfully

By order of the Board

Aluminum Corporation of China Limited*

Ge Xiaolei

Joint Company Secretary

Note: Actionable Corporate Communication is any corporate communication that seeks instructions from issuer’s securities holders on how they wish to exercise their rights or make an

election as the issuer’s securities holder.* For identification purpose only

各位登記股東：

以電子方式發布公司通訊之安排

根據自2023年12月31日起生效的擴大無紙化制度及以電子方式發布公司通訊規定下香港聯合交易所有限公司證券上市規則第2.07條，中國鋁業股份有限公司（「公司」）謹此通知閣下，公司已採用以電子方式發布公司通訊（「公司通訊」）之安排，該公司通訊是指公司發布或將要發布的任何文件，包括但不限於(a) 董事報告、年度帳目以及審計報告副本以及（如適用）財務摘要報告； (b) 中期報告及其中期報告摘要（如適用）； (c) 會議通知； (d) 上市文件； (e) 通函和 (f) 委任表格。

請注意，所有未來公司通訊的英文版和中文版將在公司網站 www.chalco.com.cn 和披露易網站 www.hkexnews.hk 上提供，以代替印刷本。

徵集電子聯絡資料

為確保及時收到可供採取行動的公司通訊（附註），公司建議閣下透過掃描本函背頁之回條（「回條」）上列印的閣下專屬二維碼來提供閣下的電子郵件地址。 或者， 閣下也可以簽署回條並交回公司的 H 股股份過戶登記處（「股份過戶處」）香港證券登記有限公司，地址為香港灣仔皇后大道東

183 號合和中心 17M 樓。

如果公司沒有收到閣下的有效電子郵件地址，直至股份過戶處收到閣下有效的電子郵件地址前，公司未来將以印刷本形式發送可供採取行動的公司通訊（附註）。

若 閣下希望收取未來公司通訊之印刷版，請填妥回條或發送電子郵件至 AluminumCorp.ecom@computershare.com.hk，並註明 閣下的姓名、地址以及收取公司通訊印刷版的要求。請注意，收取未來公司通訊印刷版之指示由收悉閣下指示當日起計一年內有效，此後將過期。

如閣下對本函件有任何疑問，請於辦公時間星期一至五（香港公眾假期除外）上午9時正至下午6時正（香港時間）其間致電股份過戶處(852)2862

8688查詢。

承董事會命中國鋁業股份有限公司聯席公司秘書葛小雷謹啟

2024年2月2日

附註：可供採取行動的公司通訊指任何涉及要求發行人的證券持有人指示其擬如何行使其有關 證券持有人的權利的公司通訊。CCS7322 ACCHREPLY FORM 回條

To: Aluminum Corporation of China Limited (the “Company”) 致： 中國鋁業股份有限公司（「公司」）

(Stock Code: 02600) （股份代號：02600）

c/o Hong Kong Registrars Limited (the “H Share Registrar”) 經香港證券登記有限公司（「H 股股份過戶處」）

17M Floor Hopewell Centre 香港灣仔皇后大道東 183 號

183 Queen’s Road East Wan Chai Hong Kong 合和中心 17M 樓

(Please choose ONLY ONE of the options below)

(請從以下選項中只選擇其中一項)

Personalized QR Code

Option 1: Provide your email address for receipt of future Actionable Corporate 專屬二維碼

Communications(Note 3) of the Company via electronic dissemination by scanning

your personalized QR code

選項1：掃瞄閣下專屬二維碼提供閣下之電子郵件地址，以接收公司通過電子方式發佈可供採取行動的未來公司通訊(附註3)

You are NOT required to return this Reply Form if you choose Option 1.如選擇了選項1，閣下無須交回本回條。

Option 2: I/we hereby provide my/our email address in writing for receipt of future Actionable Corporate Communications(Note 3) of the following listed company via electronic dissemination

選項2：本人/吾等現以書面提供本人/吾等之的電子郵件地址，以確保收到以下上市公司通過電子方式發佈可供採取行動的未來公司通訊(附註3)Name of Securities holder(s) 證券持有人姓名 : Name of the listed company 上市公司名稱 :

Aluminum Corporation of China Limited中國鋁業股份有限公司

(Please use BLOCK LETTERS 請用正楷填寫)

(Note 3 / 附註 3)

Email address 電郵地址:

Option 3: I/we hereby request for receipt of future Corporate Communications* in printed form and noted that this instruction is valid only for one year starting from the receipt date of

instruction. (Note 5) (Please mark “” in the below box if applicable)

選項3：本人/吾等現要求收取未來公司通訊*印刷版，並已知悉本指示的有效期由收取指示日期起計一年內有效。(附註5)（如適用，請在以下方格內劃上「」號）English Version 英文版本 Chinese Version 中文版本 English and Chinese Versions 英文及中文版本

Signature(s): (Note 1) Contact number: Date:

簽名：(附註1)聯絡電話號碼：日期：

Notes 附註：

1. Please complete all your details clearly. If your shares are held in joint names all of the joint shareholders should jointly sign this Reply Form in order to be valid.

請清楚填妥閣下之所有資料。如屬聯名股東，則本回條須由所有聯名股東聯合簽署，方為有效。

2. Any Reply Form with no signature or otherwise incorrectly completed will be void.

任何回條若未有簽署或在其他方面填寫不正確，則本回條將會作廢。

3. If the Company does not receive a functional email address in your reply you will be unable to receive notifications regardi ng the publication of Actionable Corporate Communications. Actionable Corporate Communication is any corporate communication that

seeks instructions from issuer’s securities holders on how they wish to exercise their rights or make an election as the issu er’s securities holder.如公司沒有收到閣下的有效電子郵件地址，閣下將無法收到有關發佈可供採取行動的公司通訊的通知。可供採取行動的公司通訊指任何涉及要求發行人的證券持有人指示其擬如何行使其有關證券持有人的權利的公司通訊。

4. If you provide more than one email address by QR code email reply form and/or other means only the latest one email address provided will be registered.

如閣下通過二維碼、電郵、回條及/或其他方式提供多於一個的電子郵件地址，只有閣下最後提供的電子郵件地址將會被用於登記。

5. If you mark “” in the box in Option 3 no email address will be registered and only Corporate Communications* in printed form will be received.

如閣下在選項3方格內劃上「」號，將不會有電子郵件地址被登記，只有公司通訊*的印刷版會被收取。

6. For the avoidance of doubt the Company does not accept any other instructions given on this Reply Form.

為免存疑，在本回條上的任何額外指示，公司將不予處理。

* Unless otherwise specified Corporate Communications refer to any documents issued or to be issued by the Company for the information or action of holders of any of its securities including but not limited to (a) the directors’ report its annual accounts

together with a copy of the auditors’ report and where applicable its summary financial report; (b) the interim report and where applicable its summary interim report; (c) a notice of meeting; (d) a listing docume nt; (e) a circular and (f) a proxy form.除非另有註明，公司通訊乃指公司已發出或將予發出以供其任何證券的持有人參照或採取行動的任何文件，其中包括但不限於(a) 董事報告、年度帳目以及審計報告副本以及（如適用）財務摘要報告； (b) 中期報告及其中期報告摘要（如適用）； (c) 會議通知； (d) 上市文件； (e) 通函和 (f) 委任表格。

PERSONAL INFORMATION COLLECTION STATEMENT收集個人資料聲明

(i) “Personal Data” in this statement has the same meaning as “personal data” in the Personal Data (Privacy) Ordinance Chapter 48 6 of the Laws of Hong Kong (“PDPO”).本聲明中所指的「個人資料」與香港法例第486章《個人資料（私隱）條例》（「《私隱條例》」）中「個人資料」的涵義相同。

(ii) Your Personal Data provided in this Reply Form will be used in connection with including but not limited to the Company’s electronic dissemination of Corporate Communications and to liaise with you on other matters relating to your holdings in the Company. Your

supply of Personal Data to the Company is on a voluntary basis. In case of a failure to provide sufficient information the Company may not be able to process your instruction and/or request as stated in this Reply Form.閣下於本回條所提供的個人資料將用於(包括但不限於)有關公司以電子方式發布公司通訊及就閣下持有的公司證券有關的其他事宜上與閣下聯絡。閣下是自願向公司提供個人資料。若閣下未能提供足夠資料，公司可能無法處理閣下在本回條上所述的指示及/或要求。

(iii) Your Personal Data may be disclosed or transferred by the Company to its subsidiaries the H Share Registrar and/or other companies or bodies for any of the stated purposes or when it is required to do so by law and will be retained for such period as may be

necessary for our verification and record purposes.公司可就任何所說明的用途或在法例規定的情況下，將 閣下的個人資料披露或轉移給公司的附屬公司、H 股股份過戶處、及/或其他公司或團體，並將在適當期間保留該等個人資料作核實及紀錄用途。

(iv) You have the right to request access to and/or correction of your Personal Data in accordance with the provisions of the PDPO. Any such request for access to and/or correction of your Pe rsonal Data should be in writing by mail to the Hong

Kong Privacy Officer of the H Share Registrar at 17M Floor Hopewell Centre 183 Queen’s Road East Wan Chai Hong Kong or by email at PrivacyOfficer@computershare.com.hk.閣下有權根據《私隱條例》的條文查閱及/或修改 閣下的個人資料。任何該等查閱及 /或修改個人資料的要求均須以書面方式郵寄至 H 股股份過戶處（地址為香港灣仔皇后大道東 183 號合和中心 17M 樓）向香港隱私主任提出，或發送電郵至PrivacyOfficer@computershare.com.hk。

Mailing Label 郵寄標籤

Please cut the mailing label and stick it on an envelope to return this form to us.Computershare Hong Kong Investor Services Limited No postage is necessary if posted in Hong Kong.香港中央證券登記有限公司

Freepost No. 簡便回郵號碼：37 當 閣下寄回此回條時，請將郵寄標籤剪貼於信封上。

Hong Kong 香港 如在本港投寄， 閣下無需支付郵費或貼上郵票。