Cosan (NYSE: CSAN) repays about R$6.2B through bond redemptions

Rhea-AI Filing Summary

Cosan S.A. reports that its wholly owned subsidiary, Cosan Luxembourg S.A., is fully redeeming its senior notes due June 2030 and January 2031. The principal amount of the 2030 bond is US$269,334,000.00, and the 2031 bond totals US$300,000,000.00.

This step is part of a liability management process stemming from public offerings carried out in 2025, aimed at reducing indebtedness and financial costs and improving the capital structure. With this redemption, Cosan states it has repaid approximately R$6.2 billion of debt to date.

Positive

• Meaningful debt reduction: Cosan reports total debt repayment of approximately R$6.2 billion to date, as part of a liability management process intended to reduce indebtedness and financial costs and improve its capital structure.
• Early bond redemption: The full redemption of the US$269,334,000.00 senior notes due June 2030 and US$300,000,000.00 senior notes due January 2031 removes these medium-term maturities from the company’s debt profile.

Negative

• None.

Insights

Debt capital markets analyst

Cosan accelerates deleveraging with full redemption of 2030 and 2031 bonds.

Cosan S.A., through Cosan Luxembourg S.A., is fully redeeming senior notes maturing in June 2030 and January 2031, with principals of US$269,334,000.00 and US$300,000,000.00. This is explicitly framed as part of a liability management process.

The company links these moves to public offerings completed in 2025, targeting lower indebtedness, reduced financial costs and a stronger capital structure. Cosan indicates that, including this step, it has repaid about R$6.2 billion of debt so far, which represents a sizable balance-sheet adjustment.

Future communications about this liability management process are planned, as Cosan states it will keep shareholders and the market informed about next steps, suggesting additional balance-sheet actions may be described in subsequent disclosures.

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16
OR 15d-16 UNDER THE SECURITIES EXCHANGE ACT OF 1934

For the month of February 2026

Commission File Number: 001-40155

Cosan S.A.

(Exact name of registrant as specified in its charter)

N/A

(Translation of registrant’s name into English)

Av. Brigadeiro Faria Lima, 4100, – 16th floor
São Paulo, SP 04538-132 Brazil
(Address of principal executive offices)

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

Form 20-F X Form 40-F

 

COSAN S.A.

Publicly Held Company

CNPJ/ME No. 50.746.577/0001‑15

NIRE 35.300.177.045 | CVM Code 01983‑6

NOTICE TO THE MARKET

COSAN S.A. (B3: CSAN3; NYSE: CSAN) (“Cosan” or “Company”), further to the Notice to the Market disclosed on January 16, 2026, advances another step in its liability management process, as provided for in the documentation of the public offerings carried out in 2025, focused on reducing indebtedness and financial costs, and also improving its capital structure.

In this context, its wholly owned subsidiary, Cosan Luxembourg S.A., is fully redeeming the senior notes due June 2030 (“Bond 2030”) and the senior notes due January 2031 (“Bond 2031”), with the principal amount of Bond 2030 totaling US$269,334,000.00 and Bond 2031 totaling US$300,000,000.00.

With this redemption, Cosan has communicated total debt repayment of approximately R$6.2 billion to the date and will keep its shareholders and the market in general informed about the next steps of this process.

São Paulo, February 02, 2026

Rafael Bergman
Chief Financial and Investor Relations Officer

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:  February 02, 2026

	COSAN S.A.
	By:	/s/ Rafael Bergman
		Name:            Rafael Bergman
		Title: Chief Financial Officer

FAQ

What debt instruments is Cosan S.A. redeeming in this 6-K filing?

Cosan, through Cosan Luxembourg S.A., is fully redeeming senior notes due June 2030 and January 2031. The 2030 bond has principal of US$269,334,000.00, and the 2031 bond totals US$300,000,000.00, eliminating these obligations before maturity.

How much debt has Cosan S.A. repaid so far in its liability management process?

Cosan states that, including this redemption, it has repaid approximately R$6.2 billion of debt to date. This repayment total reflects steps taken under a liability management process linked to public offerings carried out in 2025.

Why is Cosan S.A. carrying out this bond redemption according to the 6-K?

Cosan explains the bond redemption is part of a liability management process focused on reducing indebtedness and financial costs and improving its capital structure. The actions follow public offerings completed in 2025, which were structured to support these balance-sheet objectives.

Which Cosan entity is responsible for redeeming the 2030 and 2031 senior notes?

The notes are being fully redeemed by Cosan Luxembourg S.A., a wholly owned subsidiary of Cosan S.A. Using this subsidiary, the group addresses its outstanding senior notes while pursuing the broader liability management strategy described in the notice to the market.

What future communications does Cosan S.A. plan regarding its liability management?

Cosan states it will keep shareholders and the market informed about the next steps of its liability management process. This indicates that additional actions related to debt reduction and capital structure may be disclosed in subsequent communications or regulatory reports.