Bunker Hill Mining Announces First Stope Blast on Track for Commercial Production in Q4|2026

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These achievements reflect the Company’s unwavering commitment to a safety-first culture as it advances the restart of the historic Bunker Hill Mine towards commercial production by end of the year. The milestones were reached through disciplined operational practices, continuous training, and strong workforce engagement across all site activities.

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“Safety performance at this level does not happen by accident—it is the result of consistent leadership, accountability, and a shared commitment across our entire team,” said Sam Ash. “Four years without an LTI and a full year without a recordable incident are exceptional accomplishments in our industry, particularly during an active restart phase. We are proud of our team for setting and maintaining this standard.”

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The Company’s safety program emphasizes proactive risk identification, hazard mitigation, and continuous improvement, supported by robust systems and procedures aligned with modern mining practices. As commissioning and development activities progress, Bunker Hill remains focused on maintaining these standards while safely advancing toward commercial production.

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“Embedding safety into every aspect of our operations is foundational to how we build this company,” added Alan Longley, Health and Safety Manager. “We need to execute complex work safely while maintaining productivity and momentum, and our safety performance shows that we are doing just that.”

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Bunker Hill will continue to prioritize the health and safety of its workforce, contractors, and community as it advances its strategy to become a modern, sustainable producer of critical and precious metals.

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ON TRACK FOR COMMERCIAL PRODUCTION BY YEAR-END

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With underground production activities advancing and the processing facility operational, Bunker Hill remains on track to achieve commercial production by the end of 2026.

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The Company’s near-term priorities include continuing to safely increase underground mining rates, optimizing the processing circuit, building operating consistency, and advancing toward the production levels contemplated in its mine plan.

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ABOUT
BUNKER
HILL
MINING
CORP.

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Bunker Hill Mining Corp. is a U.S.-based mining company focused on building a modern, long-life mining operation at its flagship Bunker Hill Mine in northern Idaho’s prolific Silver Valley. With production now underway, the Company is advancing the mine toward commercial production of zinc, lead and silver concentrates while pursuing opportunities to optimize operations, expand resources and extend mine life.

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The Bunker Hill Mine is in one of North America’s most prolific and storied mining districts and benefits from established infrastructure, a skilled local workforce and a significant mineral resource base. Bunker Hill’s strategy is focused on disciplined operational execution, responsible mining practices and continued investment in the asset to deliver sustainable production and long-term shareholder value. Additional information is available at www.bunkerhillmining.com and on SEDAR+ and EDGAR.

On
behalf
of
Bunker
Hill
Mining
Corp.

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Sam Ash
President and Chief Executive Officer

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For
additional
information,
please
contact:

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Cautionary
Statements

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Certain statements in this news release are forward-looking and involve a number of risks and uncertainties. Such forward- looking statements are within the meaning of that term in Section 27A of the U.S. Securities Act of 1933, as amended, and Section 21E of the U.S. Securities Exchange Act of 1934, as amended, as well as within the meaning of the phrase ‘forward- looking information’ in the Canadian Securities Administrators’ National Instrument 51-102 – Continuous Disclosure Obligations (collectively, “forward-looking statements”). Forward-looking statements are not comprised of historical facts. Forward-looking statements include estimates and statements that describe the Company’s future plans, objectives or goals, including words to the effect that the Company or management expects a stated condition or result to occur. Forward-looking statements may be identified by such terms as “believes”, “anticipates”, “expects”, “estimates”, “may”, “could”, “would”, “will”, “plan” or variations of such words and phrases.