FORM6-K
U.S. SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

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

dated August5, 2025

Commission FileNumber 1-15148

BRFS.A.
(Exact Name as Specified in its Charter)

N/A
    (Translation of Registrant’sName)

14401AV. DAS NACOES UNIDAS 22ND FLOOR
CHAC SANTO ANTONIO 04730 090-São Paulo – SP, Brazil
    (Address of principal executive offices)(Zip code)

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

Form 20-F x  Form 40-F o

*            *             *

This material includescertain forward-looking statements that are based principally on current expectations and on projections of future events and financialtrends that currently affect or might affect the Company’s business, and are not guarantees of future performance.  These forward-lookingstatements are based on management’s expectations, which involve a number of known and unknown risks, uncertainties, assumptionsand other important factors, many of which are beyond the Company’s control and any of which could cause actual financial conditionand results of operations to differ materially fom those set out in the Company’s forward-looking statements.  You are cautionednot to put undue reliance on such forward-looking statements.  The Company undertakes no obligation, and expressly disclaims anyobligation, to update or revise any forward-looking statements.  The risks and uncertainties relating to the forward-looking statementsin this Report on Form 6-K, including Exhibit 1 hereto, include those described under the captions “Forward-Looking Statements”and “Item 3. Key Information — D. Risk Factors” in the Company’s annual report on Form 20-F for the year endedDecember 31, 2024.

SIGNATURES

After due inquiry and to the best of my knowledgeand belief, I certify that the information set forth in this statement is true, complete and correct.

 EXHIBIT INDEX

Exhibit 99.1

 Thisbusiness combination involves the securities of a Brazilian company. The business combination is subject to disclosure requirements ofBrazil that are different from those of the United States. Financial statements included in the document, if any, have been prepared inaccordance with foreign accounting standards that may not be comparable to financial statements of United States companies.

 It may be difficult for you to enforce your rights andany claim you may have arising under the U.S. federal securities laws, since the issuer is located in Brazil, and some or all of its officersand directors may be residents of Brazil. You may not be able to sue a Brazilian company or its officers or directors in a Brazilian courtfor violations of the U.S. securities laws. It may be difficult to compel a Brazilian company and its affiliates to subject themselvesto a U.S. court’s judgment.

 You should be aware that the issuer may purchase securitiesotherwise than under the exchange offer, such as in open market or privately negotiated purchases.

BRF S.A. Publicly Traded Company CNPJ/MF nº 01.838.723/0001-27 NIRE 42.300.034.240

MATERIAL FACT

BRF S.A. (“BRF” or “Company”),in compliance with Article 157, Paragraph 4, of Law No. 6,404, dated December 15, 1976, and with Brazilian Securities Exchange Commission(Comissão de Valores Mobiliários “CVM”) Resolution No. 44, dated August 23, 2021, hereby informits shareholders and the market in general that the Company’s shareholders approved on this date, at an Extraordinary General Meeting(“EGM”), the merger of BRF shares by Marfrig Global Foods S.A. (“Marfrig”) (“Merger”),under the terms of the “Plan of Merger of BRF S.A. Shares by Marfrig Global Foods S.A.”, executed on May 15, 2025, as amendedon May 26, 2025 (“Plan of Merger”), and the Company’s Management Proposal submitted to the EGM.

The completion of the Merger is subject to theapproval of the transaction at Marfrig's extraordinary general meeting, to be held on the present date, and is also subject to the satisfaction(or waiver, as the case may be) of the Conditions and the occurrence of the Closing Date, as provided for in the Plan of Merger.

The Company will keep its shareholders and themarket in general duly informed about relevant developments related to the Merger, in accordance with applicable legislation and regulations.

São Paulo, August 05, 2025.