Bunker Hill Confirms Discovery of New High-Grade Silver-Lead Veins with Second Drill Intercept

Bunker Hill Mining Corp. reported assay results from the second hole of its underground exploration program at the Cate‑Eight Target within the Bunker Hill Mine. Drillhole BHE26‑02 intersected a 28.6 ft mineralized zone grading 3.02 oz/t Ag, 7.44% Pb and 0.85% Zn (173.5 g/t AgEq), including a 17.1 ft zone at 4.19 oz/t Ag, 10.67% Pb and 0.73% Zn. Two distinct high‑grade galena‑siderite veins were cut: one returning 2.1 ft @ 7.95 oz/t Ag, 22.18% Pb, the other 4.3 ft @ 8.84 oz/t Ag, 23.20% Pb. Mineralization remains open in all directions and lies within 40 ft of existing development. The intercept occurs approximately 340 ft up‑dip from the previously announced hole BHE26‑01 (May 4, 2026). Six holes are planned to test the Cate‑Eight Target as part of a broader 25,000‑foot exploration campaign.

The discovery confirms and expands a new high‑grade silver‑lead zone in an area previously thought to hold limited potential. Grades are robust and would be highly economic if incorporated into the near‑term mine plan. However, the release is an incremental follow‑up to the initial Cate‑Eight intercept announced just eight days earlier. It does not alter the production restart timeline (June 2026 has been repeatedly telegraphed), nor does it represent an unexpected, market‑moving revelation—the company has consistently guided that exploration upside exists. The market may have already priced the potential given the May 4 results and the uptrend in the stock. Therefore, the news is positive but routine within the context of Bunker Hill’s ongoing pre‑production de‑risking and exploration narrative.

Bunker Hill Mining Corp. is re‑starting the historic Bunker Hill Mine in Idaho’s Coeur d’Alene (Silver Valley) district, a past producer of over 35 M oz silver and significant lead/zinc. The restart plan envisions an initial 1,800 tpd mechanized underground operation mining silver‑rich galena‑quartz veins. A 50 ft‑new processing plant has been constructed; commissioning is nearly complete. First concentrate production is targeted for June 2026. The company later plans to expand throughput to 2,500 tpd (“Bunker 2.0”), partly funded by a potential US$150 M EXIM loan. The land package of ~6,200 acres includes the recently acquired Ranger‑Page property next door, providing exploration upside and potential additional mill feed. The revenue mix has shifted with silver prices, currently projecting roughly 50 % silver / 50 % base metals (zinc‑lead). Reserves stand at 3.2 Mt grading 8.91 g/t Ag, 2.59 % Pb, 5.81 % Zn (ZnEq), supporting a multi‑year mine life.