Hudbay Minerals files Form 6-K with key exhibits

Hudbay Minerals Inc. submitted a Form 6-K as a foreign private issuer to provide U.S. investors with access to recent Canadian regulatory filings.

Rhea-AI Filing Summary

Hudbay Minerals Inc. submitted a Form 6-K as a foreign private issuer to provide U.S. investors with access to recent Canadian regulatory filings. The company explains that on August 22, 2025, it filed on the SEDAR+ system a Material Change Report and a Material Contract, specifically a Subscription Agreement dated August 12, 2025. These two Canadian documents are attached to the Form 6-K as Exhibits 99.1 and 99.2 so they are available through the U.S. disclosure system as well.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does Hudbay Minerals Inc. (HBM) report in this Form 6-K?

Hudbay Minerals Inc. uses this Form 6-K to furnish a Canadian Material Change Report and a Material Contract, specifically a Subscription Agreement dated August 12, 2025, making those documents available to U.S. investors as exhibits.

Which exhibits are attached to Hudbay Minerals Inc. (HBM) August 2025 Form 6-K?

The Form 6-K attaches two exhibits: Exhibit 99.1 is a Material Change Report, and Exhibit 99.2 is a Material Contract consisting of a Subscription Agreement dated August 12, 2025, both originally filed on the SEDAR+ system.

When did Hudbay Minerals Inc. (HBM) file the related Canadian documents?

Hudbay Minerals filed the related Canadian documents on August 22, 2025, through the SEDAR+ system. These include a Material Change Report and a Subscription Agreement dated August 12, 2025, which are cross‑filed as exhibits to this Form 6-K.

What is the purpose of Hudbay Minerals Inc. (HBM) filing Form 6-K as a foreign private issuer?

Hudbay Minerals, as a foreign private issuer, uses Form 6-K to furnish significant information it files in Canada, such as the Material Change Report and Subscription Agreement, thereby aligning disclosure for U.S. investors with its Canadian regulatory filings.

Which annual report form does Hudbay Minerals Inc. (HBM) use with the SEC?

Hudbay Minerals indicates it files annual reports under cover of Form 40-F, not Form 20-F. This classification reflects its status as a Canadian foreign private issuer using the multijurisdictional disclosure system with the SEC.

Does Hudbay Minerals Inc. (HBM) rely on SEC Rule 12g3-2(b) in this filing?

No. The company indicates that by furnishing this information it is not also relying on Rule 12g3-2(b). The corresponding checkbox for Rule 12g3-2(b) treatment is marked “No” in the Form 6-K.

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

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Accepted by SEC EDGAR 08/22/2025 - 03:48 PM Learn about SEC filing dates

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 OF
THE SECURITIES EXCHANGE ACT OF 1934

For the month of August 2025

Commission File Number: 001-34244

HUDBAY MINERALS INC.
(Translation of registrant’s name into English)

25 York Street, Suite 800
Toronto, Ontario
M5J 2V5, Canada
(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 [   ]                    Form 40-F [X]

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- _____________________________

EXPLANATORY NOTE

On August 22, 2025, Hudbay Minerals Inc. (“Hudbay”) filed on the Canadian Securities Administrators’ System for Electronic Document Analysis and Retrieval (SEDAR) website at www.sedarplus.ca the following documents: (1) Material Change Report, (2) Material Contract - Subscription Agreement dated August 12, 2025.

Copies of the filings are attached to this Form 6-K and incorporated herein by reference, as follows:

• Exhibit 99.1 — Material Change Report

• Exhibit 99.2 — Material Contract - Subscription Agreement dated August 12, 2025

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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.

	HUDBAY MINERALS INC.
	(registrant)
	By:	/s/ Mark Haber
	Name:	Mark Haber
	Title:	Vice President, Legal and Corporate Secretary

Date: August 22, 2025

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EXHIBIT INDEX

The following exhibits are furnished as part of this Form 6-K:

Exhibit		Description
99.1		Material Change Report
99.2		Material Contract - Subscription Agreement dated August 12, 2025

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