Investor Presentaiton

SUPPLY CHAIN MANAGEMENT Braskem strengthens its relationship with suppliers through actions that promotes greater engagement in sustainability SOCIO-ENVIRONMENTAL ASSESSMENT AND ENGAGEMENT PARTNERSHIP WITH ecovadis RESPONSIBLE SOURCING OF ETHANOL PROGRAM RECOGNITION AWARD Braskem Suppliers Sustainability Recognition Partners for a better future Brasker Socio-environmental assessment covers 100% of the new contracted suppliers, which includes the analysis of socio- environmental aspects in two steps: registry and due diligence. All new suppliers adhere to Braskem's Code of Conduct for Third Parties. Braskem also achieved the engagement of 270 suppliers in the assessment of CDP Supply Chain Climate and CDP Supply Chain Water, with engagement rates of 82% and 72% respectively. Braskem has partnered with Ecovadis to reinforce its supplier management program based on ESG criteria The partnership allows Braskem to identify risks and opportunities to build actions and initiatives aligned with Braskem's strategy and business goals In 2022, 422 suppliers were evaluated in the Ecovadis program In 2016, Braskem implemented the Responsible Sourcing of Ethanol Program to ensure integrity and sustainability practices in the cane chain through audits of suppliers and sub-suppliers. Braskem Supplier Code of Conduct establishes the operational standards expected from suppliers in their management of human resources, the environment, local communities, quality and efficiency. More than 50% of Braskem's ethanol purchased are from Bonsucro certified suppliers, sustainability standard in the sugarcane chain Learn more! Braskem Supplier Sustainability Recognition award highlights the ESG best practices of its suppliers and encourages actions in socioenvironmental performance, human and labor rights, the environment, ethics and sustainable Procurement. In 2022, the companies were evaluated based on their scores in the Ecovadis and CDP, resulting in the recognition of 24 suppliers that stood out the most in the period. 57 | PUBLIC Braskem

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