Announcement • Jun 29
Bunker Hill Mining Corp. Produces First Concentrate from New Bunker Hill Mine in Idaho Bunker Hill Mining Corp. announced the production of concentrate from the new Bunker Hill Mine in Idaho’s Silver Valley. This will be the first product shipped in 45 years from a mine that produced 165 Moz of silver and 4.5 Mt of base metals before it closed in 1981. The company is just starting the ramp-up to commercial production – expected by the end of 2026. The company expects to be at commercial production - defined as achieving 90 days at greater than 65% of 1800tpd throughput and associated operating stability by the end of 2026. The company continues its underground exploration drilling targeting high-grade silver-lead mineralization near existing infrastructure and further refining the understanding of the Cate-8 Vein. 16 core holes have been completed for a total of 5,960 feet, all of which have hit visible galena mineralization within and outside the modeled vein zone. An additional 28 drill holes totalling approximately 14,000 feet have been planned: 16 from the current station on the 8 Level of the Mine and 12 from a new drill station on the 7 Level to test the up-dip projection of the vein. The holes are planned to provide a drill density adequate for future mineral resource calculation, with the intention of rapidly bringing the Cate-8 Vein into the short-term mine plan and adding to the reserve base. The company has implemented rigorous QA/QC protocols, including the insertion of blanks and standards in all sample batches. QA samples inserted into the assay batches for the drill program to date have all passed the analyses of blanks and certified reference standards. Core sample intervals were selected based on visual geology and mineralization and were cut, bagged and delivered to the lab by Bunker Hill geologists. Samples were split and cut on a core saw where necessary, following a cut line placed by the geologist dividing visible mineralization into equal proportions. Samples were prepared and analyzed at SVL Lab located in Smelterville, Idaho, using standard industry grind, split, and pulp preparation, followed by microwave digestion and Inductively Coupled Plasma Optical Emission Spectrometry (ICP-OES) analysis, with overlimit samples assayed by fire assay with a gravimetric finish for silver. SVL Analytical Inc. is a full-service environmental and geochemical laboratory and holds ISO/IEC 17025 accreditation for Fire Assay and Geochemistry. SVL’s QA Program meets the quality requirements set forth in the ISO/IEC 17025:2017 Standard, as evidenced by the inclusion and reporting of internal quality control samples with all results. Sam Bourque (AIPG CPG #11775), Chief Geologist of Bunker Hill, is the Company's designated Qualified Person for this news release within the meaning of National Instrument 43-101. Mr. Bourque has reviewed and approved the technical information contained herein. Announcement • Jun 26
Court Grants Summary Judgment Victory to Bunker Hill Mining Corporation and Placer Mining Corporation in Crescent Lawsuit Bunker Hill Mining Corp. had announced that the United States District Court for the District of Idaho has issued a Memorandum Decision and Order delivering a significant summary judgment victory for the Company on multiple key claims in the ongoing litigation brought by Crescent Mine, LLC against Bunker Hill. The Court dismissed the core of the case that Crescent initiated in July 2021, while also preserving Bunker Hill’s primary claims against Crescent, keeping the Company on the offensive. Central to the decision, the Court denied Crescent’s attempt to dismiss Bunker Hill’s CERCLA Section 113(f) contribution claim, holding that the claim remains viable and will proceed at trial. Through that claim, Bunker Hill seeks to hold Crescent financially accountable for its share of the costs of managing and remediating the contaminated water from the Bunker Hill and Crescent mines. With the claim preserved, Bunker Hill intends to diligently pursue a judgment for the dollar amount, requiring Crescent to pay its share of those costs. At the same time, the Court delivered a significant summary judgment against Crescent, granting the summary judgment motions of Bunker Hill and co-defendant Placer Mining Corporation and dismissing both of Crescent’s federal CERCLA claims—a cost-recovery claim under Section 107(a) and a declaratory-judgment claim under Section 113(g)—in their entirety. These federal claims formed the centerpiece of Crescent’s case against the Company. The Court also rejected Crescent’s attempt to force Bunker Hill to drain the mine, holding that any such remedial action falls within the exclusive authority of the U.S. Environmental Protection Agency rather than the courts, and granted Bunker Hill and Placer summary judgment on that issue. The Court further granted Bunker Hill summary judgment dismissing substantial portions of Crescent’s state-law tort claims for trespass, nuisance, and negligence, holding that any damages claimed for alleged nuisance or negligence occurring before August 2017, or alleged trespass occurring before August 2018, are barred by the applicable statutes of limitations. The Court also denied Crescent’s own motion for summary judgment in nearly all respects, rejecting Crescent’s bid to establish liability against the Company. A narrow set of Crescent’s state-law claims, limited to alleged damages within a roughly three-year window, remains to be resolved at trial. The ruling does not affect Bunker Hill’s ongoing mine restart activities or operations, which remain on track to produce the first batch of concentrate for sale by the end of this month. Announcement • Jun 20
Bunker Hill Mining Corp. Announces Resignation of Mark Child from Director Role, Effective June 19, 2026 Bunker Hill Mining Corp. announced that Mark Child resigned from the Board of Directors of the Company, effective June 19, 2026. Mark Child served as a director of Bunker Hill since earlier in 2026, providing guidance and oversight during a transformative period for the Company, including advancing and restarting the historic Bunker Hill Mine in Idaho. 
