Body of the report:

In reference to Current Report No. 10/2026 of 4 March 2026, the Management Board of Jastrzębska Spółka Węglowa S.A. [“Company”] hereby reports that the documents submitted for the Extraordinary Shareholder Meeting convened for 31 March 2026 have been supplemented with the Resolutions of the Supervisory Board of Jastrzębska Spółka Węglowa S.A. on issuing opinions on the Management Board’s motions to the Shareholder Meeting of JSW S.A., published at: https://www.jsw.pl/en/investors-relations/corporate-governance/general-meetings/general-meetings-2026

Legal basis: § 20 Section 1 Item 2 of the Regulation issued by the Finance Minister on 6 June 2025 on the Current and Periodic Information Transmitted by Securities Issuers and the Conditions for Recognizing the Information Required by the Regulations of a Non-Member State as Equivalent.