Internal Rules of the Executive Board of Braskem S.A.

This report details the Internal Rules governing the Executive Officers Board of Braskem S.A. It outlines the composition, term of office, and investiture of the eight statutory officers, as well as procedures for replacement and vacancy. The document specifies the competencies of the Executive Board, including acts necessary for regular operations and collegiate deliberations, while also prohibiting certain actions such as taking out unauthorized loans or performing acts outside the corporate purpose. Individual competencies of the CEO and other Executive Officers are defined, along with detailed procedures for board meetings, including periodicity, call, agenda, installation, and resolution processes. The rules also cover minutes, publicity, the role of the Secretary of the Executive Board, and general provisions such as conflict of interest, performance evaluation, and onboarding. These rules, approved on June 8, 2026, aim to ensure the efficient functioning of the Executive Board and compliance with corporate governance standards.