Briefing
The latest drill results continue to confirm the continuity and scale of high-grade silver-polymetallic mineralization at the recently discovered Cate-8 zone while supporting the Company's objective of completing an initial resource estimate for Cate-8 by the end of the year. "These are some truly spectacular intercepts from Cate-8 and continue to demonstrate the tremendous exploration upside that exists immediately Key points: The latest drill results continue to confirm the continuity and scale of high-grade silver-polymetallic mineralization at the recently discovered Cate-8 zone while supporting the Company's objective of completing an init; The consistent geometry, thickness, and grades we're seeing in the 9-1 Level crosscut continue to strengthen our confidence in the Cate-8 system while supporting rapid advancement toward an initial resource estimate.". This brief is based on the cited source artifact and is intended as a research entry point, not a replacement for the original source or EGM canonical data tables.
Source Notes
The latest drill results continue to confirm the continuity and scale of high-grade silver-polymetallic mineralization at the recently discovered Cate-8 zone while...
Extractive summary evidence · source
The consistent geometry, thickness, and grades we're seeing in the 9-1 Level crosscut continue to strengthen our confidence in the Cate-8 system...
Extractive summary evidence 2 · source
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# Bunker Hill Mining Intersects Additional High-Grade Silver in the Cate-8 Vein; Individual Drill Samples to 16.3 oz/ton Silver, 41.1% Lead, 7.41% Zinc; Underground Channel Sampling Returns 46 Feet of 8.19% Lead, 2.49 oz/t Source: https://www.bunkerhillmining.com/news-and-media/news-releases/bunker-hill-intersects-additional-high-grade-silver--in-the-cate-8-vein-individual-drill-samples-to-163-ozton-silver-411-lead-741-zinc Fetched: 2026-09-12T07:00:17.118+00:00 Source artifact: 09f817e4-1206-487a-b38d-f9476c2b9894 Normalizer input: text ## Content KELLOGG, IDAHO | VANCOUVER, BRITISH COLUMBIA — August 31, 2026 — Bunker Hill Mining Corp. (“ Bunker Hill ” or the “ Company ”) ( TSX: BNKR | OTCQB: BHLL ) is pleased to announce additional assay results from its ongoing underground exploration drilling program in the Bunker Hill Mine (the “ Bunker Hill Mine ”), with combined silver-equivalent metal grades up to 24.43 oz/ton or 837.74 g/t AgEq, see below for calculations (41.1% lead, 13.8 oz/ton silver, 2.86% zinc). The latest drill results continue to confirm the continuity and scale of high-grade silver-polymetallic mineralization at the recently discovered Cate-8 zone while supporting the Company's objective of completing an initial resource estimate for Cate-8 by the end of the year. "These are some truly spectacular intercepts from Cate-8 and continue to demonstrate the tremendous exploration upside that exists immediately adjacent to our existing operation," said Sam Bourque, Chief Geologist . "From an exploration perspective, to have a target go from discovery drill hole to sampling the vein underground in four months’ time is about as exciting as it gets. The consistent geometry, thickness, and grades we're seeing in the 9-1 Level crosscut continue to strengthen our confidence in the Cate-8 system while supporting rapid advancement toward an initial resource estimate."