Form 3 Filing - Lucas Cive Barbosa

This filing is an initial report of beneficial ownership on Form 3 for Lucas Cive Barbosa, who is a director at BRASKEM SA. The report indicates that Mr. Barbosa does not hold any securities directly, as indicated by "noSecuritiesOwned" being set to "1". The filing date and period of report is March 17, 2026. The reporting owner is identified by CIK 0002121307 and is located in Sao Paulo, Brazil. The issuer is BRASKEM SA with trading symbol BAK and CIK 0001071438.