Jiangxi Copper Company Limited released a supplemental announcement to its 2025 Annual Report on 13 August 2026, detailing the treatment plan for 10.44 million treasury shares held at the end of the reporting period.

The company confirmed that: • The 10.44 million repurchased shares will be eligible for sale no earlier than 12 months after the disclosure of the repurchase implementation results (Disclosure Date: 20 May 2024) and the disposal must be completed within three years of that date. • Any portion not sold by the deadline will be cancelled in compliance with the “Rules for Share Repurchase by Listed Companies,” the Shanghai Stock Exchange’s Self-Regulatory Guidelines No. 7 – Repurchase of Shares, and the procedures set out in the Articles of Association. • All disposal actions will be accompanied by timely disclosures in accordance with regulatory requirements.

The company emphasized that these arrangements are unchanged from the announcement dated 20 May 2024. All other information in the 2025 Annual Report remains unaffected.