Bunker Hill on Track for June Restart of Operations

• The most recent release dated May 4, 2026, confirms that Bunker Hill Mining Corp. remains on track for a mine restart in June 2026.
• Approximately 93% of pre-production activities are now complete, including underground development and infrastructure readiness.
• Exploration drilling (BHE26-01) at the "Cate-Eight" target identified high-grade silver and lead intercepts near existing underground infrastructure.
• Specific intercepts include 2.3 ft at 11.1 oz/ton silver and 28.4% lead, consistent with broader vein zones.
• Management states these results validate geological work underpinning the mine plan and could potentially increase total silver quantity in the near-term production plan.

• The news is largely confirmatory regarding the June 2026 restart timeline, which has been consistently communicated since January 2026 (H1 2026 target) through April 2026 updates.
• Exploration results are described as "consistent with our expectations," suggesting they do not represent a significant surprise or upside deviation that would materially alter valuation models immediately.
• The finding of new veins near infrastructure is positive for operational flexibility but does not constitute a discovery of a new mine-scale resource at this stage.
• Given the consistent messaging on restart progress over the last four months, the market likely has priced in the June timeline; therefore, this update is incremental rather than transformative.
• The rating reflects Routine - Positive status as it validates execution without introducing unexpected catalysts or risks that would shift the investment thesis fundamentally.

• Company: Bunker Hill Mining Corp. trades on TSX under ticker BNKR following graduation from TSX Venture Exchange in March 2026.
• Flagship Project: The historic Bunker Hill Mine located in the Coeur d’Alene Mining District, Idaho, USA.
• Project Status: Underground restart development targeting commercial production in H1 2026 (specifically June).
• Mine Type: Mechanized underground mining using long-hole open stoping with paste backfill to reduce surface tailings footprint.
• Production Target: Throughput expansion to 2,500 tpd supported by US EXIM financing plans for future growth ("Bunker Hill 2.0").
• Revenue Mix: Projected 50% silver / 50% base metals (zinc/lead) revenue mix due to recent metal price strength.