Material Fact | Braskem informs about news published in the media

BRASKEM S.A.
Corporate Taxpayer ID (CNPJ): 42.150.391/0001-70
Company Registry: 29.300.006.939
Publicly Held Company

MATERIAL FACT

Braskem S.A. (“Braskem” or “Company”) (Ticker B3: BRKM3, BRKM5 and BRKM6; NYSE: BAK; LATIBEX:  XBRK) hereby, due to news published in the media regarding the sale process of Braskem, informs that  it is not aware of the information contained in such news and does not conduct any negotiations for the  sale of the Company, which is why it requested clarification from the shareholders who are signatories to  the Company’s Shareholders’ Agreement, who informed the following:

(A) Novonor:
“In response to your correspondence – through which information was requested regarding a  potential negotiation involving shares issued by Braskem – we inform you that negotiations are  underway between Novonor S.A. and IG4 Solutions LLC regarding an agreement aimed at  establishing an exclusivity commitment between the Parties.
We emphasize, however, that no document, binding or non-binding, has been signed between  the Parties, and that there is no guarantee that the Parties will enter into such an agreement.”   

(B) Petrobras: 

“The company clarifies that it is not a party to the agreement between Novonor and IG4  mentioned in the news. Petrobras reiterates that no decision has been made regarding its stake  in Braskem and continues to study alternatives.”

Braskem will keep the market informed of material developments on the subject, in compliance with  applicable laws. 

Additional information can be obtained from the Investor Relations Department by phone (11) 3576-9531  or by e-mail braskem-ri@braskem.com.br. 

São Paulo, December 3, 2025.
Felipe Montoro Jens
Chief Financial and Investor Relations Officer
Braskem S.A.

FORWARD-LOOKING STATEMENTS 

This Material Fact may contain forward-looking statements. These statements are not historical facts, but rather are based on the current view and estimates of the Company’s management regarding future  economic and other circumstances, industry conditions, financial performance and results, including any  potential or projected impact regarding the geological event in Alagoas and related legal procedures on  the Company’s business, financial condition and operating results. The words “project,” “believe,”  “estimate,” “expect,” “plan”, “objective” and other similar expressions, when referring to the Company,  are used to identify forward-looking statements. Statements related to the possible outcome of legal and  administrative proceedings, implementation of operational and financing strategies and investment plans,  guidance on future operations, the objective of expanding its efforts to achieve the sustainable macro  objectives disclosed by the Company, as well as factors or trends that affect the financial condition,  liquidity or operating results of the Company are examples of forward-looking statements. Such  statements reflect the current views of the Company’s management and are subject to various risks and  uncertainties, many of which are beyond the Company’s control. There is no guarantee that the events,  trends or expected results will actually occur. The statements are based on various assumptions and  factors, including, but not limited to, general economic and market conditions, industry conditions and  operating factors, availability, development and financial access to new technologies. Any change in these  assumptions or factors, including the projected impact from the joint venture and its development of  technologies, from the geological event in Alagoas and related legal procedures and the unprecedented  impact on businesses, employees, service providers, shareholders, investors and other stakeholders of  the Company could cause effective results to differ significantly from current expectations. For a  comprehensive description of the risks and other factors that could impact any forward-looking  statements in this document, especially the factors discussed in the sections, see the reports filed with  the Brazilian Securities and Exchange Commission (CVM). This Material Fact does not constitute any offer  of securities for sale in Brazil. No securities may be offered or sold in Brazil without being registered or  exempted from registration, and any public offer of securities carried out in Brazil must be made through  a prospectus, which would be made available by Braskem and contain detailed information on Braskem  and its management, as well as its financial statements.