ANNOUNCEMENT - RESIGNATION OF THE CHAIRMAN AND THE EXECUTIVE DIRECTOR; AND PROPOSED APPOINTMENT OF EXECUTIVE DIRECTOR

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 RESIGNATION OF THE CHAIRMAN AND THE EXECUTIVE DIRECTOR; AND PROPOSED APPOINTMENT OF EXECUTIVE DIRECTOR RESIGNATION OF THE CHAIRMAN AND THE EXECUTIVE DIRECTOR The board of directors (the “Board”) of Aluminum Corporation of China Limited* (the “Company”) hereby announces that the Board received a letter of resignation submitted by Mr. Dong Jianxiong (“Mr. Dong”) on 3 June 2024. Mr. Dong proposed to resign as the chairman and the executive director of the Company and from all other positions in each of the special committees under the Board due to work needs. The resignation of Mr. Dong will take effect from the date of the election of new executive director at the general meeting of the Company.Mr. Dong has confirmed that he has no disagreement with the Board and there are no matters relating to his resignation that need to be brought to the attention of the shareholders of the Company.During his tenure of office as the chairman and the director of the Company Mr. Dong was diligent and responsible and made outstanding contributions to the high-quality development of the Company. The Board would like to express its sincere gratitude and respect to Mr. Dong.– 1 –PROPOSED APPOINTMENT OF EXECUTIVE DIRECTOR As considered and approved by the 22nd meeting of the eighth session of the Board of the Company it is resolved to nominate Mr. Shi Zhirong (“Mr. Shi”) as a candidate for executive director of the eighth session of the Board of the Company.The biographical details of Mr. Shi are as follows: Mr. Shi Zhirong (史志荣 ) aged 49 currently serves as a member of the Party group and deputy general manager of Aluminum Corporation of China (中国铝业集团有限 公司 ) (“Chinalco”) and concurrently serves as the secretary of the Party Committee of the Company. Mr. Shi graduated from Taiyuan University of Technology (太原 理工大学 ) majoring in non-ferrous metals metallurgy and is a senior engineer with extensive experience in enterprise operation and management scientific research and development and aluminum smelting field. Mr. Shi successively served as the deputy general manager general manager and deputy secretary of the Party Committee of Chalco Zhengzhou Research Institute of Non-ferrous Metal Co. Ltd.* (中国铝业郑 州有色金属研究院有限公司 ); the general manager and deputy secretary of the Party Committee of Zhengzhou Light Metal Research Institute Co. Ltd.* (郑州轻金属研 究院有限公司 ); the general manager of production quality management department of the Company; the director of China Copper Mineral Resources Co. Ltd.* (中铜矿 产资源有限公司 ); the director of Chalco Shanxi New Material Co. Ltd.* (中铝山 西新材料有限公司 ); the general manager of the science and technology innovation department of Chinalco; the executive director and secretary of the Party Committee of Chinalco Materials Application Research Institute Co. Ltd.* (中铝材料应用研究院有 限公司 ); the director of Chinalco Innovation Development Investment Co. Ltd.* (中 铝创新开发投资有限公司 ); the director of Chalco Zhengzhou Research Institute of Non-ferrous Metal Co. Ltd.* (中铝郑州有色金属研究院有限公司 ); and the secretary of the Party Committee of Chinalco Research Institute of Science and Technology Co. Ltd.* (中铝科学技术研究院有限公司 ) (Chinalco Future Science and Technology Research Institute* (中铝集团未来科学技术研究院 )). Mr. Shi currently also serves as the executive director and general manager of Chinalco Research Institute of Science and Technology Co. Ltd.* (中铝科学技术研究院有限公司 ) (Chinalco Future Science and Technology Research Institute* (中铝集团未来科学技术研究院 )).Mr. Shi 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. Shi 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)). – 2 –Save as disclosed above as at the date of this announcement the Company is not aware of any matter in respect of Mr. Shi 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. Shi will commence from the approval at the general meeting of the Company and expire on the election of the ninth session of the Board. The Company will enter into a service contract with Mr. Shi after his election as a director is approved at the general meeting of the Company. Besides given that Mr. Shi 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 director 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 –3–