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Item 16B. Code of Ethics

We have adopted a code of conduct that applies to members of our board of directors, fiscal council and board of executive officers, as well as to all of our other employees. Our current code of conduct was approved by our board of directors in April 2018, and was last amended in April 2025. A copy of our code of conduct may be found on our website at www.braskem-ri.com.br. The information included on our website or that might be accessed through our website is not included in this annual report and is not incorporated into this annual report by reference.

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