6-K

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANTTO RULE 13A-16OR 15D-16 OF THE SECURITIES EXCHANGE ACT OF 1934

For the month of May, 2026

(Commission File No. 1-14862 )

BRASKEM S.A.

(Exact Name as Specified in its Charter)

N/A

(Translation of registrant's name into English)

Rua Eteno, 1561, Polo Petroquimico de CamacariCamacari, Bahia - CEP 42810-000 Brazil

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover Form 20-F or Form 40-F.

Form 20-F ___X___       Form 40-F ______

Indicate by check mark if the registrant is submitting the Form 6-K

in paper as permitted by Regulation S-T Rule 101(b)(1). _____

Indicate by check mark if the registrant is submitting the Form 6-K

in paper as permitted by Regulation S-T Rule 101(b)(7). _____

Indicate by check mark whether the registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934.

Yes ______       No ___X___

If "Yes" is marked, indicate below the file number assigned to the registrant in connection with Rule 12g3-2(b): 82- _____.

BRASKEM S.A

C.N.P.J. No. 42.150.391/0001-70

NIRE 29300006939

PUBLIC HELD COMPANY

ORDINARY GENERAL MEETING

OF APRIL 29, 2026

DETAILED FINAL VOTINGMAP

São Paulo, May4, 2026 – Braskem S.A. (B3: BRKM3, BRKM5 and BRKM6; NYSE: BAK; LATIBEX: XBRK) (“Company”), in compliance with CVM Resolution No. 81/22, as amended, hereby disclose to its shareholders and the market the detailed final voting map which consolidates the voting instructions of both shareholders which voted through remote voting (boletim de voto a distância) and those during the Meeting, as computed at the Ordinary General Meeting of the Company held on April 29, 2026, including the first five digits of the shareholders’ individual or corporate taxpayer identification number (CPF or CNPJ, respectively), their vote on each item, and information about their shareholding position, as EXHIBIT I.

Further information can be obtained from Braskem’s Investor Relations Department by phone: +55 (11) 3576-9531 or by e-mail: [email protected].

EXHIBIT I

EXTRAORDINARY GENERALMEETING

OF APRIL 29, 2026

DETAILED FINAL VOTINGMAP

¹²³ As a result of the replacement of candidates comprising the slate of nominees submitted by shareholders Novonor and Petrobras for the election of the Company’s Board of Directors, as disclosed in the Shareholders’ Notice released by the Company on April 28, 2026, the votes corresponding to: (i) 6,904,683 common shares and 25,520,389 preferred shares in item 3; (ii) 6,904,683 common shares and 25,510,385 preferred shares in item 11; and (iii) 6,904,683 common shares and 25,520,389 preferred shares in item 12 were not taken into account.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: May 4, 2026

DISCLAIMER ON FORWARD-LOOKING STATEMENTS

This report on Form 6-K may contain forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. These statements are statements that are not historical facts, and are based on our management’s current view and estimates of future economic and other circumstances, industry conditions, company performance and financial results, including any potential or projected impact of the geological event in Alagoas and related legal proceedings and of COVID-19 on our business, financial condition and operating results. The words “anticipates,” “believes,” “estimates,” “expects,” “plans” and similar expressions, as they relate to the company, are intended to identify forward-looking statements. Statements regarding the potential outcome of legal and administrative proceedings, the implementation of principal operating and financing strategies and capital expenditure plans, the direction of future operations and the factors or trends affecting our financial condition, liquidity or results of operations are examples of forward-looking statements. Such statements reflect the current views of our management and are subject to a number of risks and uncertainties, many of which are outside of the our control. There is no guarantee that the expected events, trends or results will actually occur. The statements are based on many assumptions and factors, including general economic and market conditions, industry conditions, and operating factors. Any changes in such assumptions or factors, including the projected impact of the geological event in Alagoas and related legal proceedings and the unprecedented impact of COVID-19 pandemic on our business, employees, service providers, stockholders, investors and other stakeholders, could cause actual results to differ materially from current expectations. Please refer to our annual report on Form 20-F for the year ended December 31, 2019 filed with the SEC, as well as any subsequent filings made by us pursuant to the Exchange Act, each of which is available on the SEC’s website (www.sec.gov), for a full discussion of the risks and other factors that may impact any forward-looking statements in this presentation.