Braskem S.A. Treasury Share Holdings Report for May 2026

Braskem S.A., a Brazilian petrochemical company, filed a Form 6-K report for June 2026 disclosing its treasury share holdings as of May 2026. The filing indicates that the company held 42,150,391 "A" preferred shares in treasury with Corporate Taxpayer ID 42.150.391/0001-70. The report was submitted in compliance with Brazilian regulatory requirements under CVM Resolution #44/2021 and CVM Instruction #358/2002, as amended by CVM Instruction #568/2015. The filing includes standard forward-looking statement disclaimers regarding geological events in Alagoas, COVID-19 impacts, and other business risks. The report was signed by Carlos Augusto Machado Pereira de Almeida Brandão, Chief Financial Officer, on June 9, 2026.