ANNOUNCEMENT - PROPOSED APPOINTMENT OF SUPERVISOR

Hong Kong Exchanges and Clearing Limited and The Stock Exchange of Hong Kong Limited take no responsibility for the contents of this announcement make no representation as to its accuracy or completeness and expressly disclaim any liability whatsoever for any loss howsoever arising from or in reliance upon the whole or any part of the contents of this announcement.ANNOUNCEMENT PROPOSED APPOINTMENT OF SUPERVISOR Reference is made to the announcement of Aluminum Corporation of China Limited* (the “Company”) dated 6 February 2024 in relation to the resignation of a shareholderrepresentative supervisor. The supervisory committee of the Company (the “SupervisoryCommittee”) hereby announces that as recommended by Aluminum Corporation of China* (中国铝业集团有限公司 ) (“Chinalco”) the controlling shareholder of the Company and upon consideration and approval at the 11th meeting of the eighth session of the Supervisory Committee of the Company it is resolved to nominate Mr. Zhang Wenjun (“Mr. Zhang”) as a candidate for the shareholder representative supervisor of the eighth session of the Supervisory Committee of the Company.The biographical details of Mr. Zhang are as follows: Mr. Zhang Wenjun (张文军 ) aged 44 currently serves as the deputy general manager (person in charge) of the finance property department of Chinalco. Mr. Zhang graduated from the School of Business Wuhan University (武 汉 大 学 商 学 院 ) majoring in accounting and is a senior accountant with extensive experience in fields such as finance management and enterprise management. Mr. Zhang successively served as the manager of budget management division of the finance property department of Chinalco; the supervisor of Chinalco Finance Co. Ltd.* (中铝财务有限责任公司 ); the non-executive director of China Aluminum International Engineering Corporation Limited* (中 铝 国 际 工 程 股 份 有 限 公 司 ); the full-time external director of Chinalco Capital Holdings Co. Ltd.* (中 铝 资 本 控 股 有 限 公 司 ); the full-time director of China Aluminum International Trading Group Co. Ltd.* (中铝国际贸易 集团有限公司 ); the full-time external director of Chinalco Finance Co. Ltd.; and the chief financial officer of Chinalco Aluminum Foil Co. Ltd.* (中铝铝箔有限公司 ).– 1 –Mr. Zhang currently also serves as the deputy director of Fund Management Centre of Chinalco; the director and general manager of Chinalco (Beijing) Fund Management Co.Ltd.* (中铝（北京）基金管理有限责任公司 ); the general manager of Beijing Metal & Aluminum Capital Investment Co. Ltd.* (北京金铝资本投资有限公司 ); and the director of Chinalco Asset Holding Co. Ltd.* (中铝资产控股有限公司 ).Mr. Zhang has confirmed that save as disclosed above as at the date of this announcement he did not hold any directorship in the last three years in any other public companies the securities of which are listed on any securities market in Hong Kong or overseas and he does not have any relationship with any director senior management substantial shareholder or controlling shareholder of the Company nor does he hold any position in the Company or any of its subsidiaries. As at the date of this announcement Mr. Zhang does not have nor is deemed to have any interest in any shares underlying shares or debentures of the Company or any of its associated corporations (within the meaning of Part XV of the Securities and Futures Ordinance (Chapter 571 of the Laws of Hong Kong)). Save as disclosed above as at the date of this announcement the Company is not aware of any other matter in respect of Mr. Zhang that is required to be disclosed pursuant to the requirements set out in Rule 13.51(2) (h) to (v) of the Rules Governing the Listing of Securities on The Stock Exchange of Hong Kong Limited nor is there any matter that needs to be brought to the attention of the shareholders of the Company.The term of office of Mr. Zhang will commence from the date of approval at the general meeting of the Company and expire on the election of the ninth session of the Supervisory Committee. The Company will enter into a service contract with Mr. Zhang after his election as a shareholder representative supervisor is approved at the general meeting of the Company. Besides given that Mr. Zhang also serves at Chinalco and receives remuneration from Chinalco he does not receive any additional remuneration from the Company due to his concurrent tenure as a shareholder representative supervisor of the Company.By order of the Board Aluminum Corporation of China Limited* Ge Xiaolei Joint Company Secretary Beijing the PRC 3 June 2024 As at the date of this announcement the members of the Board comprise Mr. Dong Jianxiong Mr. Zhu Runzhou Mr. Ou Xiaowu and Mr. Jiang Tao (Executive Directors); Mr. Zhang Jilong and Mr. Chen Pengjun (Non-executive Directors); Mr. Qiu Guanzhou Mr. Yu Jinsong and Ms. Chan Yuen Sau Kelly (Independent Non-executive Directors).* For identification purpose only –2–