Bunker Hill Announces Increase to the Previously Announced Promissory Note to Ensure Sufficient Liquidity as it Continues Toward Closing its Private Placements and Major Capital Restructuring

KELLOGG, Idaho and VANCOUVER, British Columbia, May 22, 2025 (GLOBE NEWSWIRE) -- Bunker Hill Mining Corp. (“Bunker Hill” or the “Company”) (TSX-V: BNKR |OTCQB: BHLL) is pleased to announce that the Company and Teck Resources Limited (“Teck”) have agreed to amend and restate the unsecured promissory note previously provided by Teck to increase the maximum aggregate principal amount thereunder from US$3.4 million to US$4.4 million (as amended and restated, the “Promissory Note”). The Promissory Note ensures sufficient short-term funding until the previously announced brokered and non-brokered private placements close, and bears interest at a rate of 12% per annum, with such interest being capitalized and added to the principal amount outstanding monthly under the Promissory Note. The Promissory Note is available in multiple advances, at the discretion of Teck, and is payable by the Company in cash on demand from Teck. No bonus securities of the Company will be issued to Teck in connection with the Promissory Note, nor is the Promissory Note convertible into securities of the Company.