Notice to Shareholders Regarding Board of Directors Nominations

Braskem S.A. has notified its shareholders of changes to the slate of nominees for its Board of Directors, to be elected at the upcoming Annual General Meeting on April 29, 2026. The nominations come from shareholders Novonor S.A. and Petróleo Brasileiro S.A. – Petrobras. Key nominated individuals include Magda Maria de Regina Chambriard for Chairman of the Board and Héctor Nuñez for Vice-Chairman. The filing details the professional experience, qualifications, and independence declarations of the nominated candidates, including effective and alternate members for the Board. Information regarding potential conflicts of interest and relationships with controlling shareholders and related entities is also provided, alongside a self-declaration of independence for one of the candidates.