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TORONTO, May 29, 2026 (GLOBE NEWSWIRE) -- Osisko Metals Incorporated (the "Company" or "Osisko Metals") (TSX: OM; OTCQX: OMZNF; FRANKFURT: OB51) is pleased to announce the filing on SEDAR+ of a technical report titled "NI 43-101 Technical Report on the Gaspé Copper Project with an Updated Mineral Resource Estimate for the Copper Mountain Deposit, Quebec, Canada" dated May 28, 2026 (with an effective date of January 17, 2026) (the "Technical Report"), in accordance with National Instrument 43-101 – Standards of Disclosure for Mineral Projects ("NI 43-101").

TORONTO, May 28, 2026 (GLOBE NEWSWIRE) -- Osisko Metals Incorporated (TSX:OM "Osisko" or the "Corporation") announces the results of its annual meeting of shareholders (the "Meeting") held earlier today. A total of 475,369,374 common shares of the Corporation were represented at the Meeting, representing approximately 64.4% of the total number of common shares of the Corporation issued and outstanding.

Base Case Outlines M&I Resources of 1.83 Billion tonnes at 0.27% Cu and Inferred Resources of 0.24 Billion tonnes at 0.41% Cu 2026 Drill Program to Commence at Month End to Further Infill and Expand Resource DPEX Drill Program to Commence in May MONTREAL, April 14, 2026 (GLOBE NEWSWIRE) -- Osisko Metals Incorporated (the “Company” or “Osisko Metals”) ( TSX: OM ; OTCQX: OMZNF ) is pleased to announce an updated Mineral Resource Estimate (“MRE”) for the Gaspé Copper Project, located in Eastern Quebec, following 118,000 metres of drilling completed in 2025. The updated MRE (Table 1) includes base case, pit-constrained resources comprising 1,834 million tonnes averaging 0.27% Cu (0.32% CuEq) of Measured and Indicated categories (M&I), and 239 million tonnes averaging 0.41% Cu (0.46% CuEq) of Inferred category.
