NOTICE OF POSTPONEMENT AND CONVOCATION TO THE EXTRAORDINARY GENERAL MEETING OF BRASKEM S.A.

Braskem S.A. is postponing its Extraordinary General Meeting from May 28, 2026, to June 08, 2026, at 3 p.m., to be held digitally. The meeting will address the reformulation of the company's Bylaws, including amendments to various articles to improve clarity, incorporate provisions from a new Shareholders' Agreement, and align with new governance practices. Key changes include the establishment of statutory committees for Finance and Investment, Strategy, Sustainability and Communication, People and Organization, and Safety, Environment, and Health. The agenda also includes consolidating the company's Bylaws, authorizing the Board of Directors to anticipate the end of the current Executive Board's term and begin a new two-year term, electing members to the Board of Directors, and replacing members of the Fiscal Council. Shareholders can participate remotely via a voting ballot or the digital platform, with detailed instructions provided. Documents for participation must be submitted by June 06, 2026.