UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

Report of Foreign Issuer

Pursuant to Rule 13a-16 or 15d-16

of the Securities Exchange Act of 1934

For the month of December 2025

Commission File Number: 001-14370

COMPANIA DE MINAS BUENAVENTURA S.A.A.

(Exact name of registrant as specified in its charter)

BUENAVENTURA MINING COMPANY INC.

(Translation of registrant’s name into English)

CALLE LAS BEGONIAS NO. 415,
SAN ISIDRO, LIMA, PERU
(Address of principal executive office)

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 ¨

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):

Yes ¨ No x

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):

Yes ¨ No x

Lima, December 11, 2025

Compañía de Minas Buenaventura S.A.A. (the “Company”) hereby informs that, in accordance with Peruvian Regulations on Material Events and Confidential Information (Resolución SMV No. 005-2014-SMV-01), on December 5, 2025, the Company made the following disclosure to the market:

The Company intends to acquire Shares representing up to 1.5% of the share capital of Sociedad Minera El Brocal S.A.A..

To the extent the acquisition(s) are executed, any such transactions will be carried out on one or throughout several dates, depending on applicable market conditions.

Kind regards,

Daniel Domínguez Vera

Stock Exchange Representative

COMPAÑÍA DE MINAS BUENAVENTURA S.A.A.

SIGNATURE

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.

	COMPAÑÍA DE MINAS BUENAVENTURA S.A.A.

Date: December 11, 2025	By:	/s/ DANIEL DOMÍNGUEZ VERA
	Name:	Daniel Domínguez Vera
	Title:	Market Relations Officer

BUENAVENTURA MINING CO INC 6-K