Hudbay Minerals Inc.

For the period ended Mar 27, 2025. Filed Mar 27, 2025.

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Mar 27, 2025 · Filed Mar 27, 2025

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EXPLANATORY NOTE

On March 27, 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) News Release No. 6 dated March 27, 2025, (2) News Release No. 7 dated March 27, 2025, (3) Form 52-109F1 Certification of Annual Filings Full Certificate - CEO, (4) Form 52-109F1 Certification of Annual Filings Full Certificate - CFO.

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

Exhibit 99.1 — News Release No. 6 dated March 27, 2025
Exhibit 99.2 — News Release No. 7 dated March 27, 2025
Exhibit 99.3 — Form 52-109F1 Certification of Annual Filings Full Certificate - CEO
Exhibit 99.4 — Form 52-109F1 Certification of Annual Filings Full Certificate - CFO

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