Braskem extends BRL 1.85B Petrobras gas deal to 2029

Braskem extends a related-party natural gas contract via its subsidiary, raising term to 2029 with up to 1,000,000 m³/day and an estimated BRL 1.85 billion value.

Rhea-AI Filing Summary

Braskem S.A. (BAK) announced an amendment to a related-party natural gas supply agreement between its wholly owned subsidiary Voqen Energia Ltda. and Petróleo Brasileiro S.A. – Petrobras. The amendment extends the contract term from December 31, 2026 to December 31, 2029 under a firm and non-flexible supply modality.

The traded natural gas volume over the contractual horizon will range from 300,000 m³/day to 1,000,000 m³/day, with delivery at the entrance of the TBG, TAG and NTS transportation networks. The estimated contract value after signing the amendment is BRL 1,850,000,000.00. The transaction was reviewed by Voqen’s governance bodies and Braskem’s committees and Board of Directors, including board members who are also executive officers of Petrobras.

Filing Explained

Braskem’s Form 6-K identifies August 28, 2026 as the transaction date and describes the estimated BRL 1.85 billion contract value as applying after the amendment’s signing, placing the disclosed gas-contract change in a dated transaction state rather than presenting it only as a future proposal.

Key Figures

Estimated contract value: BRL 1,850,000,000.00 Contract term end (before amendment): December 31, 2026 Contract term end (after amendment): December 31, 2029 +3 more

6 metrics

Estimated contract value BRL 1,850,000,000.00 Total estimated value of the natural gas supply contract after the amendment

Contract term end (before amendment) December 31, 2026 Original end date of the natural gas supply agreement

Contract term end (after amendment) December 31, 2029 New end date of the natural gas supply agreement after extension

Minimum Contractual Daily Quantity (CDQ) 300,000 m³/day Lower bound of traded natural gas volume under the amended contract

Maximum Contractual Daily Quantity (CDQ) 1,000,000 m³/day Upper bound of traded natural gas volume under the amended contract

Transaction date August 28, 2026 Date on which the contract amendment transaction occurred

Key Terms

related-party transaction, Contractual Daily Quantity (CDQ), firm and non-flexible, transportation networks, +1 more

5 terms

related-party transaction regulatory

"Braskem informs its shareholders and the market in general of the following related-party transaction"

A related-party transaction is a deal, payment or transfer of value between a company and people or entities closely connected to its managers, directors or major owners—think of a business hiring a company owned by the CEO’s sibling. Investors care because such deals can be biased, overprice goods or hide conflicts of interest, affecting profits and trust; clear disclosure and fair terms help ensure the company is run in shareholders’ best interest.

Contractual Daily Quantity (CDQ) financial

"Increase in the Contractual Daily Quantity (CDQ): the traded volume of natural gas"

firm and non-flexible technical

"under a firm and non-flexible modality, for the preferential supply of Braskem's facilities"

transportation networks technical

"with gas delivery at the entrance of the TBG, TAG, and NTS transportation networks"

forward-looking statements regulatory

"This report on Form 6-K may contain forward-looking statements within the meaning"

Forward-looking statements are predictions or plans that companies share about what they expect to happen in the future, like estimating sales or profits. They matter because they help investors understand a company's outlook, but since they are based on guesses and assumptions, they can sometimes be wrong.

FAQ

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

Braskem disclosed an amendment to a natural gas supply agreement between its wholly owned subsidiary Voqen Energia Ltda. and Petrobras, extending the term, adjusting contracted volumes, and setting an estimated value of BRL 1.85 billion after the amendment.

How long does the amended Braskem (BAK) gas supply contract with Petrobras run?

The amendment extends the natural gas supply contract term from December 31, 2026 to December 31, 2029. This covers the preferential supply of Braskem’s facilities in Brazil or portfolio adjustments under a firm and non-flexible modality.

What gas volumes are covered under Braskem’s amended contract via Voqen?

Under the amendment, the Contractual Daily Quantity (CDQ) of natural gas ranges from 300,000 m³/day to 1,000,000 m³/day over the contractual horizon, with gas delivered at the entrance of the TBG, TAG and NTS transportation networks.

What is the estimated value of the amended Braskem (BAK) gas supply agreement?

The estimated contract value after signing the amendment is BRL 1,850,000,000.00 (one billion, eight hundred and fifty million reais), reflecting the extended term and adjusted natural gas volumes under the firm, non-flexible supply arrangement.

How was Braskem’s related-party gas contract amendment approved?

The transaction was reviewed by Voqen’s applicable bodies, Braskem’s statutory audit and finance and investment committees, and Braskem’s Board of Executive Officers, and was approved by the Board of Directors, with participation of board members who are also Petrobras executive officers.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 09/10/2026 - 06:02 AM Accepted by SEC EDGAR 09/09/2026 - 06:43 PM Learn about SEC filing dates

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 September, 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 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, September 9, 2026 - Braskem S.A. (“Braskem”), in compliance with the provisions of Article 33, item XXXII, of CVM Resolution No. 80/2022, hereby informs its shareholders and the market in general of the following related-party transaction:

Parties	Voqen Energia Ltda. (“Voqen”) and Petróleo Brasileiro S.A. - Petrobras (“Petrobras”).
Relationship with the issuer	Voqen is a wholly owned subsidiary of Braskem S.A. ("Braskem"), which, in turn, is co-controlled by Petrobras.
Purpose	Amendment to the natural gas supply agreement entered into on 07/28/2025, between Voqen (as buyer) and Petrobras (as seller), under a firm and non-flexible modality, for the preferential supply of Braskem's facilities in Brazil or for adjustments to its portfolio.
Key Terms and Conditions	Extension of the term: from December 31,2026 to December 31,2029; Increase in the Contractual Daily Quantity (CDQ): the traded volume of natural gas ranges from 300,000 m³/day (three hundred thousand cubic meters per day) to 1,000,000 m³/day (one million cubic meters per day) over the contractual horizon; Modality: firm and non-flexible, with gas delivery at the entrance of the TBG, TAG, and NTS transportation networks. Estimated contract value after signing the amendment: BRL 1,850,000,000.00 (one billion, eight hundred and fifty million reais).
Transaction date	08/28/2026
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 issuer	The transaction was reviewed by Voqen's applicable bodies and by the statutory audit and finance and investment committees, by Braskem's Board of Executive Officers, and approved by its Board of Directors, with the participation of Board Members who are also executive officers of Petrobras.

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Detailed justification of the reasons why the issuer’s management considers that the transaction was conducted on arm’s length terms or provides for adequate compensatory payment The transaction considered all internal contracting procedures applicable to Voqen's natural gas suppliers, which include market parameters for the agreed commercial conditions.   This transaction was approved by the competent bodies and complied with Braskem's Related Party Transactions Policy.

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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: September 9, 2026

	BRASKEM S.A.
	By:	/s/     Carlos Augusto Machado Pereira de Almeida Brandão
		Name:	Carlos Augusto Machado Pereira de Almeida Brandão
		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.