Report 18/2026 - Submission by a shareholder of draft resolutions concerning matters included in the agenda of the General Meeting of Shareholders.

Legal basis: Article 56(1)(2) of the Act on Public Offering - current and periodic information

The Management Board of Mostostal Warszawa S.A. ("Company"), in reference to Current Report No. 17/2026 dated April 29, 2026, informs that on May 5, 2026, the Company received from the shareholder - Open Pension Fund PZU "Złota Jesień" based in Warsaw, draft resolutions concerning items 12 and 13 of the agenda of the Ordinary General Meeting of the Company convened for May 26, 2026, regarding:

- 12. Adoption of resolution No. 23 of the Ordinary General Meeting of the Company dated May 26, 2026, regarding the increase of the Company's share capital through the issuance of series VI ordinary bearer shares, depriving the existing shareholders of pre-emptive rights to all series VI shares, applying for admission and introduction of series VI shares and rights to series VI shares to trading on the regulated market operated by the Warsaw Stock Exchange, dematerialization of series VI shares and rights to series VI shares, authorization to conclude an agreement for the registration of series VI shares and rights to series VI shares in the securities depository, and amendment of the Company's Articles of Association,

- 13. Adoption of resolution No. 24 of the Ordinary General Meeting of the Company dated May 26, 2026, regarding the increase of the Company's share capital through the issuance of series VI ordinary bearer shares in a closed subscription (i.e., preserving the pre-emptive rights of existing shareholders), determining May 26, 2026, as the record date for series VI shares, dematerialization and applying for admission and introduction of series VI shares and rights to series VI shares to trading on the regulated market operated by the Warsaw Stock Exchange, and amendment of the Company's Articles of Association.

The draft resolutions of the Ordinary General Meeting submitted by the shareholder are attached to this report.

All information regarding the Ordinary General Meeting is available on the Company's website at https://www.mostostal.waw.pl/relacje-inwestorskie/walne-zgromadzenie/20….

Legal basis: § 20(1)(4) of the Regulation of the Minister of Finance of June 6, 2025, on current and periodic information provided by issuers of securities and conditions for recognizing as equivalent the information required by the laws of a non-member state.