Braskem (BAK) reports R$398M gasoil transaction with related-party refinery RPR

Rhea-AI Filing Summary

Braskem S.A. reported a significant related-party transaction with Refinaria de Petróleo Riograndense S.A. (RPR), a company jointly controlled by Braskem, Petrobras and Ultrapar. On November 18, 2025, Braskem’s sales of gasoil to RPR reached R$398 million.

The gasoil is supplied by Braskem for use as feedstock in RPR’s production process, with volumes determined based on opportunity rather than fixed minimum or maximum commitments. Braskem states that prices are referenced to the international Platts Gasoil No. 2 USG Waterborne quotation to ensure fair market terms, and that RPR, its partners and its administrators did not participate in Braskem’s internal decision-making or contract negotiations.

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

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

For the month of November, 2025

(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 Camacari
Camacari, 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- _____.

 

NOTICE ON RELATED-PARTY TRANSACTIONS

São Paulo, November 28, 2025 - Braskem S.A. (“Braskem”), in compliance with article 33, XXXII of CVM Resolution 80/2022, hereby informs its shareholders and the market in general of the following transaction between related parties:

Parties	Braskem and Refinaria de Petróleo Riograndense S.A. (“RPR”).
Relationship with the issuer	RPR is a company whose control is shared between Braskem, Petróleo Brasileiro S.A. – Petrobras and Ultrapar Participações S.A.
Purpose	Transactions for the purchase and sale of gasoil, supplied by Braskem to RPR, which reached R$398 million on 11/18/2025.
Key Terms and Conditions	Referring to the sale of gasoil by Braskem to RPR for use as feedstock in its production process. Availability and demand are assessed based on opportunity, without pre-established minimum and maximum agreements.
Transaction date	11/18/2025
Possible participation of the counterparty, its partners, or managers in the issuer's decision-making process or negotiation of the transaction as representatives of the issue	There was no participation by the counterparty, the counterparty's partners or the counterparty's administrators in Braskem's decisionmaking process or in the negotiation of the aforementioned contracts.
Detailed justification of the reasons why the issuer's management considers that the transaction has complied with commutative conditions or provides for an appropriate reverse payment	The price charged by Braskem to RPR is referenced to the international market quotation (Platts Gasoil No. 2 USG Waterborne), ensuring the commutability of the operation for both parties.

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: November 28, 2025

	BRASKEM S.A.
	By:	/s/     Felipe Montoro Jens
		Name:	Felipe Montoro Jens
		Title:	Chief Financial Officer

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.

FAQ

What related-party transaction did Braskem (BAK) disclose in this Form 6-K?

Braskem disclosed a related-party transaction involving the sale of gasoil to Refinaria de Petróleo Riograndense S.A. (RPR), with transactions reaching R$398 million on November 18, 2025.

Who is the counterparty in Braskem (BAK)'s related-party transaction and how is it related?

The counterparty is Refinaria de Petróleo Riograndense S.A. (RPR), whose control is shared by Braskem, Petróleo Brasileiro S.A. – Petrobras and Ultrapar Participações S.A., making it a related party to Braskem.

What is the purpose of the R$398 million gasoil transaction reported by Braskem (BAK)?

The purpose is the purchase and sale of gasoil supplied by Braskem to RPR, which uses the gasoil as feedstock in its production process.

How does Braskem (BAK) determine pricing for gasoil sold to RPR in this related-party deal?

Braskem states that the price charged to RPR is referenced to the international Platts Gasoil No. 2 USG Waterborne quotation, which it cites as ensuring fair and commutative terms for both parties.

Were there any minimum or maximum volume commitments in Braskem (BAK)'s gasoil sales to RPR?

No. Braskem notes that availability and demand are assessed based on opportunity, with no pre-established minimum or maximum volume agreements for these gasoil transactions.

Did RPR or its managers influence Braskem (BAK)'s decision on this related-party transaction?

Braskem states that there was no participation by the counterparty, its partners or its administrators in Braskem's decision-making process or in negotiating the gasoil contracts.