Aluminum Corporation of China Limited (CHALCO) has issued an updated cash-dividend timetable for its final dividend relating to the financial year ended 31 December 2025.

Dividend Declaration • Amount: RMB 0.147 per ordinary share • Nature: Final, ordinary dividend • Payment currency: Hong Kong dollars, with the exact exchange rate to be announced

Revised Key Dates • Shareholder approval: 26 June 2026 • Ex-dividend date: 30 June 2026 • Latest time to lodge share transfers: 2 July 2026, 16:30 (HKT) • Book-closure period: 3–8 July 2026 • Record date: 8 July 2026 • Payment date: 14 August 2026

Administrative Details • Share registrar: Computershare Hong Kong Investor Services Limited, Shops 1712–1716, 17/F, Hopewell Centre, 183 Queen’s Road East, Wan Chai, Hong Kong • Withholding tax information: To be announced • Listed warrants/convertible securities: Not applicable

Governance Snapshot The Board currently comprises Executive Directors He Wenjian, Zhang Ruizhong and Mao Shiqing; Non-executive Directors Guo Gang and Jiang Hao; and Independent Non-executive Directors Yu Jinsong, Chan Yuen Sau Kelly and Li Xiaobin.

The revised schedule updates the shareholder approval date, ex-dividend date, book-closure period and record date previously disclosed.