ANNOUNCEMENT - CHANGE OF THE COMPANY'S E-MAIL ADDRESS

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 CHANGE OF THE COMPANY’S E-MAIL ADDRESS Aluminum Corporation of China Limited* (the “Company”) hereby announces that the Company’s e-mail address has been changed from IR@chalco.com.cn to IR@chinalco.com.cn due to the transformation and upgrading of the internal information system effective from the date of this announcement.Save for the aforesaid change the Company’s office address investor contact hotline Company’s website and other contact information remain unchanged.By order of the Board Aluminum Corporation of China Limited* Ge Xiaolei Joint Company Secretary Beijing the PRC 25 June 2024 As at the date of this announcement the members of the Board comprise Mr. Shi Zhirong 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