Final Dividend for the Year Ended 31 December 2023 (Updated)

EF001 Disclaimer 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 arisen from or in reliance upon the whole or any part of the contents of this announcement.Cash Dividend Announcement for Equity Issuer Issuer name Aluminum Corporation of China Limited Stock code 02600 Multi-counter stock code and currency Not applicable Other related stock code(s) and Not applicable name(s) Title of announcement Final Dividend for the Year Ended 31 December 2023 (Updated) Announcement date 25 June 2024 Status Update to previous announcement Reason for the update / change Update on exchange rate the final dividend amount in HKD and the payment date Information relating to the dividend Dividend type Final Dividend nature Ordinary For the financial year end 31 December 2023 Reporting period end for the dividend declared 31 December 2023 Dividend declared RMB 0.08 per share Date of shareholders' approval 25 June 2024 Information relating to Hong Kong share register Default currency and amount in which the dividend will be paid HKD 0.0877 per share Exchange rate RMB 1 : HKD 1.0963926 Ex-dividend date 27 June 2024 Latest time to lodge transfer documents for registration with share registrar for 28 June 2024 16:30 determining entitlement to the dividend Book close period From 29 June 2024 to 04 July 2024 Record date 04 July 2024 Payment date 26 July 2024 Hong Kong Registrars Limited 17M Floor Hopewell Centre Share registrar and its address 183 Queen's Road East Wanchai Hong Kong Page 1 of 3 v 1.1.1EF001 Information relating to withholding tax The information relating to withholding tax applicable to the final dividend (including types of shareholders and tax rates) is set out as follows. For further details please refer to the notice of 2023 annual general meeting of the Company.Type of shareholders Tax rate Other relevant information (if any) Enterprise - non-resident i.e. registered address 10% The enterprise income tax at the outside PRC rate of 10% shall be withheld for the dividends of any H shares under the names of non-individual shareholders (any H shares of the Company registered in the name of HKSCC Nominees Limited other nominees and trustees or other organizations and institutions shall be deemed as shares held by non-resident enterprise shareholders).Individual - non-resident i.e. registered address If the individual H Shareholders outside PRC 10% are Hong Kong or Macau residents or residents of the countries having an agreed dividend tax rate of 10% with China the Company shall withhold and pay the individual income tax at a rate of 10%.Should the individual H Details of withholding tax applied to the Shareholders be residents of the dividend declared countries having an agreed dividend tax rate of less than 10% with China the Company would apply for entitlement of the relevant agreed preferential tax treatment on their behalf in accordance with the Announcement of the State Administration of Taxation on Promulgating the Administrative Measures for Tax Convention Treatment for Non-resident Taxpayers (Announcement of the State Administration of Taxation 2019 No. 35). Should the individual H Shareholders be residents of the countries having an agreed dividend tax rate exceeding 10% but lower than 20% with China the Company shall withhold and pay the individual income tax at the actual agreed rate.Individual - non-resident i.e. registered address 20% In the case where the individual H outside PRC Shareholders are residents of the countries having not entered into any tax agreement with China or otherwise the Company shall withhold and pay the individual income tax at a rate of 20%.Page 2 of 3 v 1.1.1EF001 Individual - resident i.e. registered address within 20% The Company will apply to CSDC PRC for the dividends and bonuses received by individual investors from Mainland China investing in H shares of the Company on the Hong Kong Stock Exchange through the Shanghai-Hong Kong Stock Connect and Shenzhen Hong Kong Stock Connect and China Clearing will provide the Company with a register of individual investors from the Mainland and the Company will withhold personal income tax at a rate of 20%. Individual investors who have paid withholding tax abroad may apply for tax credits at the competent tax authorities in China with valid tax deduction certificates. For dividends and bonuses received by Mainland securities investment funds from investing in H shares of the Company on the Hong Kong Stock Exchange through the Shanghai-Hong Kong Stock Connect and Shenzhen-Hong Kong Stock Connect personal income tax shall be withheld in accordance with the aforementioned regulations.Information relating to listed warrants / convertible securities issued by the issuer Details of listed warrants / convertible securities issued by the issuer Not applicable Other information Other information Not applicable Directors of the issuer 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).Page 3 of 3 v 1.1.1