Bunker Hill Mining (BNKR) Corporate presentation summary

Project status and development

• Project is 90% complete and on track for first production in H1 2026, with phased commissioning underway.

• Processing plant and tailings filter plant construction are advancing, with commissioning scheduled before production.

• Expansion to 2,500 tpd throughput planned, supported by a $150M US EXIM Bank LOI.

• Land package expanded to 6,283.7 acres, the largest in the Silver Valley.

• Operating water treatment plant in partnership with EPA and IDEQ, with significant excess capacity.

Operational and financial highlights

• Positioned on the lower half of the zinc cost curve, targeting low AISC and leveraging legacy infrastructure.

• 1,800 tpd processing facility achieves >80% metal recovery, with clean concentrates trucked to Teck's Trail Smelter.

• Expansion project aims for a 13-year mine life, increasing annual silver and zinc output by over 30%.

• Significant increase in free cash flow projected as higher-grade silver is accessed in later years.

• Strong support from strategic partners, with Teck Resources holding 27% and Sprott 18%.

Exploration and growth potential

• Substantial exploration upside with most of the 2,300-hectare land claim package underexplored.

• Multiple high-priority targets identified through geophysical and geochemical surveys.

• 2026 exploration program includes over 25,000 feet of drilling across three main targets.

• Deposit remains open at depth, with significant higher-grade silver mineralization potential.

• Expansion plan aims to restore a 50/50 silver-base metals revenue mix, increasing resource quality and mine life.