Aluminum Corporation of China Limited (CHALCO) has convened its 2026 first H Shareholders Class Meeting for the afternoon of 26 June 2026 in Beijing. The session will follow the company’s Annual General Meeting and the A Shareholders Class Meeting.

The sole agenda item is a special resolution authorizing the Board to repurchase up to 10% of the company’s issued A Shares and up to 10% of its issued H Shares (excluding treasury shares). The mandate, if approved by shareholders at the respective class meetings, will remain effective from the date of approval until the earlier of (1) the conclusion of the next annual general meeting and any subsequent class meetings or (2) the revocation or amendment of the resolution by shareholders.

Key administrative details include: • Record date and book closure: The H share register will be closed from 22 June 2026 to 26 June 2026 (both days inclusive). Shareholders recorded on 22 June 2026 are entitled to attend and vote. • Proxy and registration deadlines: Transfer documents must be lodged with Computershare Hong Kong Investor Services by 18 June 2026. Attendance reply slips are due by 23 June 2026, and proxy forms must reach Computershare no later than 24 hours before the meeting. • Voting will be conducted by poll.

The notice, issued on 11 May 2026, is signed by Joint Company Secretary Zhu Dan. The Board currently comprises three executive directors, two non-executive directors, and three independent non-executive directors.