The Management Board of KGHM Polska Miedź S.A.

The Management Board of KGHM Polska Miedź S.A. (“the Company”) announces that on 8 June 2026 the Company received an information from the shareholder – the State Treasury, that the following persons will be proposed as candidates for the Supervisory Board of the Company at the Ordinary General Meeting of KGHM Polska Miedź S.A. convened for 9 June 2026:

The Management Board of KGHM Polska Miedź S.A. (“the Company”) announces that on 1 June 2026 the Company received information from Nationale-Nederlanden Powszechne Towarzystwo Emerytalne S.A., acting on behalf of the shareholder – Nationale-Nederlanden Otwarty Fundusz Emerytalny, that Joanna Zakrzewska is proposed as a candidate for an independent Member of the Supervisory Board of the Company at the Ordinary General Meeting of KGHM Polska Miedź S.A.

The Management Board of KGHM Polska Miedź S.A. hereby provides attached preliminary production and sales data of the KGHM Polska Miedź S.A. Group for April 2026. The final quarterly production and sales results will be published in the consolidated report for the first half of 2026.

The Management Board of KGHM Polska Miedź S.A. provides attached the announcement on convening of an Ordinary General Meeting of KGHM Polska Miedź S.A. on 9 June 2026.

The Management Board of KGHM Polska Miedź S.A. (“the Company”) announces that on 27 April 2026 it adopted a resolution in respect of which it will submit a proposal to the Ordinary General Meeting of KGHM Polska Miedź S.A. to adopt a resolution on the appropriation of profit for 2025, in the amount of PLN 1 946 423 407.72 by:

The Management Board of KGHM Polska Miedź S.A. hereby provides attached preliminary production and sales data of the KGHM Polska Miedź S.A. Group for March 2026. The final quarterly production and sales results will be published in the consolidated report for the first quarter of 2026.

The Management Board of KGHM Polska Miedź S.A. hereby provides attached preliminary production and sales data of the KGHM Polska Miedź S.A. Group for February 2026. The final quarterly production and sales results will be published in the consolidated report for the first quarter of 2026.

The Management Board of KGHM Polska Miedź S.A. (“the Company”), in reference to regulatory filing no. 7/2026 dated 28 January 2026, announces that as a result of the identification of indications of a possible change in the recoverable amount of key Polish and international assets, the Company conducted impairment testing of:

The Management Board of KGHM Polska Miedź S.A.