KGHM Polska Miedź S.A.

Capital/Financing Update • Dec 1, 2025

Report Content Setting the detailed terms of the issuance of D series bonds

In reference to regulatory filing no. 28/2025 dated 7 November 2025, theManagement Board of KGHM Polska Miedź S.A. ("Company") announces that asa result of the book building process among the investors which ended on1 December 2025, the following detailed terms of the issuance of Dseries bonds were set:

1. Total nominal value of the issued Bonds: PLN 1 600 000 000.

2. Bonds issuance date: 17 December 2025.

3. Bonds redemption date: 17 December 2032.

4. Interest rate: WIBOR 6M + a margin of 100 p. b. p.a.

Other parameters of the issuance, which were announced via a regulatoryfiling no. 28/2025, are still valid.

Legal basis: Art. 17 (1) of MAR (Regulation (EU) No 596/2014 of theEuropean Parliament and of the Council of 16 April 2014 on market abuse(market abuse regulation) and repealing Directive 2003/6/EC of theEuropean Parliament and of the Council and Commission Directives2003/124/EC, 2003/125/EC and 2004/72/EC