Bunker Hill on track for June, 2026, mine restart

Executive Summary

• Bunker Hill Mining Corp. provides a progress update on the restart of its Bunker Hill zinc-silver-lead mine in Idaho, confirming construction and commissioning are 85% complete and on track for a June 2026 restart.
• The company has launched a new exploration program, contracting Timberline Drilling for 25,000 feet of drilling on high-grade silver targets at Bunker Hill and Ranger Page properties starting in April 2026.
• Operational readiness is highlighted by 40 months without lost-time injuries, 100% completion of mechanical installation for the filter plant, and the receipt of new Caterpillar underground fleet vehicles.

Key Details

• Mine Restart Timeline: Construction and commissioning are 85% complete, with operations and first concentrate production scheduled for June 2026.
• Exploration Program:
  • Contractor: Timberline Drilling.
  • Volume: 25,000 feet of drilling.
  • Start Date: April 2026.
  • Targets: Higher-grade silver targets at Bunker Hill and Ranger Page properties.
  • Significance: This is the first phase of a multiphase campaign running through 2026, described as the largest drilling campaign since the mine closed in 1981.
• Processing Plant Status:
  • Mills are currently turning, with commissioning advancing ahead of plan.
  • Filter plant: 100% of mechanical installation is complete; contractors are advancing piping and electrical installation ahead of schedule.
• Underground Preparation:
  • Stockpiles are sufficient to support the first three months of operations.
  • Development is advancing rapidly to encompass all stopes included in the first six months of the mine plan.
  • New underground fleet from Caterpillar Inc. has arrived to support full-time mining operations starting in June 2026.
  • Underground ramp extended to the 9 Level to open new mining areas.
• Safety Record: The project has achieved 40 months with no lost-time injuries.
• LIFE Offering Clarification: Units issued under the recently completed LIFE offering comprised one preconsolidation common share and one-half of a warrant.

Notable Quotes

• "As the first signs of spring are seen in the Silver Valley, the Bunker Hill project advances at pace towards its June operational restart. Our team is expanding in size daily, with each new member slotting seamlessly into positions in accordance with our operational readiness schedule," says Sam Ash, president and chief executive officer.
• "Even more exciting is the contracting of Timberline Drilling, who will support our exploration team by drilling several high-grade silver targets within both the Bunker Hill and Ranger Page properties beginning in April. This is the initial phase of a multiphase campaign that will continue through 2026 and represents the start of the largest drilling campaign conducted at Bunker Hill since the mine closed in 1981."