Hudbay Provides an Update on the Wildfire Situation near Flin Flon

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TORONTO, May 29, 2025 (GLOBE NEWSWIRE) — Hudbay Minerals Inc. (“Hudbay” or the “Company”) (TSX, NYSE: HBM) is responding to the evolving wildfire situation in northern Manitoba and is working closely with local authorities to ensure its employees remain safe as well as comply with the regional wildfire evacuation order that includes Flin Flon and the surrounding areas. Only essential Hudbay personnel, authorized by emergency services, will remain in Flin Flon to assist with emergency activities. While Hudbay no longer has active mine production activities in Flin Flon after the closure of the 777 mine in 2022, the Company has ongoing care and maintenance activities in Flin Flon as well as services to support the Snow Lake operations, including concentrate handling, fabrication shops and administration. The Flin Flon community has been an important part of Hudbay’s operations for nearly 100 years.

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Hudbay continues to maintain operations in Snow Lake, which is located approximately 200 kilometres east of Flin Flon. The Company expects temporary reduced production levels in Snow Lake as a large portion of its workforce resides in Flin Flon. However, given the strong performance in Snow Lake year-to-date, the Company remains well-positioned to achieve its annual guidance metrics for 2025. Hudbay has paused exploration activities in the Flin Flon and Snow Lake region as fire mitigation efforts are underway.

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“The safety of our employees, their families and the communities we serve is our top priority,” said Rob Carter, Vice President of Hudbay’s Manitoba Business Unit. “We are collaborating closely with the City of Flin Flon, local communities and provincial authorities to provide support during this challenging time. We will continue to monitor the situation, ensuring a safe return to full operations as soon as it is advisable.”

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As part of its commitment to support Manitoba and the Flin Flon community, Hudbay is taking the following actions:

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Forward-Looking Information

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This news release contains “forward-looking statements” and “forward-looking information” (collectively, “forward-looking information”) within the meaning of applicable Canadian and United States securities legislation. Forward- looking information includes information that relates to, among other things, statements with respect to potential impacts from wildfires on the Company’s operations in Manitoba, including the ability to achieve guidance expectations. Forward-looking information is not, and cannot be, a guarantee of future results or events.

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Forward-looking information is based on, among other things, opinions, assumptions, estimates and analyses that, while considered reasonable by Hudbay at the date the forward-looking information is provided, inherently are subject to significant risks, uncertainties, contingencies and other factors that may cause actual results and events to be materially different from those expressed or implied by the forward-looking information. Should one or more risk, uncertainty, contingency or other factor materialize or should any factor or assumption prove incorrect, actual results could vary materially from those expressed or implied in the forward-looking information. Hudbay does not assume any obligation to update or revise any forward-looking information after the date of this news release or to explain any material difference between subsequent actual events and any forward-looking information, except as required by applicable law.