Braskem S.A. - Material Fact on Board of Directors and Executive Officer Changes

Braskem S.A. announced significant changes in its leadership structure following an Extraordinary General Meeting (EGM) on June 8, 2026. The EGM approved the election of new members to the Company's Board of Directors, whose term will conclude at the 2028 Annual General Meeting. Subsequently, the new Board of Directors elected Ms. Magda Maria de Regina Chambriard as Chairman and Mr. Hélio Baptista Novaes as Vice-Chairman. The Board also approved changes to the Company's Statutory Board of Officers for a two-year term. Key appointments include Mr. Helcio Tokeshi as Chief Executive Officer and Mr. Carlos Augusto Machado Pereira de Almeida Brandão as Chief Financial and Investor Relations Officer. Several other officers were elected or re-elected to their positions. The company also extended its gratitude to the outgoing members of the Board of Directors and previous officers for their contributions. The filing also includes detailed curriculum vitae for the newly appointed and re-elected officers, along with standard forward-looking statements and disclaimers.