MONTREAL, June 09, 2026 (GLOBE NEWSWIRE) -- Osisko Metals Incorporated (the " Company " or " Osisko Metals ") ( TSX: OM ; OTCQX: OMZNF ; FRANKFURT: 0B51 ) is pleased to announce initial results from the 2026 drill program at the Gaspé Copper Project, located in the Gaspé Peninsula of Eastern Québec. Five drills are currently active on the property, with two additional drills commencing work this month. New analytical results from the 2026 drill program are presented below (see Table 1), including four mineralized intercepts from two new drill holes. For the 2026 program, reported “infill” intercepts will be located within the 2026 MRE model ( see April 14, 2026 news release ), and will be focused on upgrading inferred mineral resources to measured or indicated categories, as applicable. “Expansion” intercepts will be located outside the 2026 MRE model and will comprise either A) in-pit expansion, which offers potential to convert in-pit waste into additional resources within the 2026 MRE Whittle pit, or B) outside expansion, consisting of mineralization located out of the 2026 MRE Whittle pit, which may potentially lead to the definition of new resources. Some of the reported intercepts may have contiguous shallower infill as well as deeper expansion (noted as “Both”). Maps showing hole locations are available at www.osiskometals.com . Osisko Metals Chief Executive Officer Robert Wares commented: “The 2026 drill program is off to an excellent start with three new significant intersections reported from the Needle Mountain expansion area, all within modelled waste rock of the 2026 MRE Whittle pit volume. With the launch of the 2026 drill program, we believe that there is excellent potential for conversion of currently categorized in-pit waste rock to new mineralized zones in the direction of Needle Mountain.” Highlights: Drill hole 30-1196 80.0 metres averaging 1.93% Cu (1.97% CuEq – in-pit expansion) Drill hole 30-1195 76.5 metres averaging 0.35% Cu (0.42% CuEq – in-pit expansion) Table 1: Infill and Expansion Drilling Results DDH No. From (m) To (m) Length (m) Cu % Ag g/t Mo % CuEq* % Type** 30-1195 280.5 357.0 76.5 0.35 2.54 0.020 0.42 Expansion 1 And 568.5 630.0 61.5 0.27 1.74 0.008 0.30 Expansion 2 30-1196 97.5 162.0 64.5 0.57 3.13 <0.005 0.58 Expansion 1 And 196.0 276.0 80.0 1.93 9.64 0.013 1.97 Expansion 1 (including) 223.5 253.5 30.0 3.49 18.4 0.018 3.55 Expansion 1 * See explanatory notes below on copper equivalent values and Quality Assurance/Quality Controls. ** Expansion 1 refers to in-pit expansion; Expansion 2 refers to out-of-pit expansion. “Both” indicates drill holes that have contiguous shallower infill as well as deeper expansion intercepts. Discussion Drill hole 30-1195, located at the northern extremity of the Needle Mountain expansion area, is a vertical hole that cut two mineralized intervals. The first, within the 2026 Whittle pit volume, cut 76.5 metres averaging 0.35% Cu, 0.020% Mo and 2.54 g/t Ag at the level of the C Zone skarn horizon, just outside the historical underground workings. The second, below the 2026 Whittle pit volume, cut 64.5 metres averaging 0.57% Cu, 0.008% Mo and 1.74 g/t Ag within porcellanites below the level of the E Zone horizon, extending mineralization in this area to a vertical depth of 630 metres. Drill hole 30-1196, located 150 metres south of 30-1195, is a vertical hole that also cut two mineralized intervals, both within the 2026 Whittle pit volume. The first cut 64.5 metres averaging 0.57% Cu and 3.13 g/t Ag at the level of the B Zone horizon. The second cut 80 metres averaging 1.93% Cu, 0.013% Mo and 9.64 g/t Ag within the C Zone skarn horizon, through the historical underground workings. A high-grade subinterval of 30 metres averaging 3.49% Cu, 0.018% Mo and 18.4 g/t Ag corresponds to an intersection through a pillar of the C Zone underground workings. This hole extended mineralization in this area to a vertical depth of 276 metres. Mineralization at Gaspé Copper is of porphyry copper/skarn type and occurs as disseminations and stockworks of chalcopyrite with pyrite or pyrrhotite and minor bornite and molybdenite. One prograde and at least five retrograde vein/stockwork mineralizing events have been recognized at Copper Mountain, which overprint earlier, stratiform, carbonate replacement skarn and porcellanite-hosted mineralization throughout the Gaspé Copper system. Porcellanite is a historical mining term used to describe bleached, pale green to white potassic-altered hornfels. Subvertical stockwork mineralization dominates at Copper Mountain whereas prograde bedding-parallel mineralization, which is mostly stratigraphically controlled, dominates in the area of lower Copper Mountain, Needle Mountain, Needle East, and Copper Brook. High molybdenum grades (up to 0.5% Mo) were locally obtained in both the C Zone and E Zone skarns away from Copper Mountain. The 2022 to 2024 Osisko Metals drill programs were focused on defining open-pit resources withi