Mr. Robert Wares reports

OSISKO METALS BEGINS 2025 DRILL PROGRAM AT GASPE COPPER

Osisko Metals Inc.'s 2025 drill program is under way at its 100-per-cent-owned Gaspe copper project, located next to the town of Murdochville in the Gaspe Peninsula, eastern Quebec.

2025 drill program

The 2025 drill program, now slated at 110,000 metres (m), is designed to: (1) convert existing inferred resources (see news release dated Nov. 14, 2024) into the indicated or measured resource categories; (2) test potential expansion of the current resources deeper to 250 m below the E zone horizon and further to the south toward Needle Mountain; (3) further characterize higher-grade skarn zones (0.5 per cent to 3.0 per cent copper (Cu)); and (4) validate new geological models. In addition, approximately 10,000 m of drilling outside the main mining concession will test regional exploration targets on surrounding claims.

The first drill began turning last week and drilling is expected to end by November, 2025. A second drill will arrive later this month, followed by additional drills in the spring, increasing as required as the program advances.

Robert Wares, chief executive officer, commented: "We are very pleased to resume drilling at Gaspe copper and are very excited about the growth potential of the resource base. This program aims to confirm existing open-pit resources and potentially expand them based on a new geological model for distribution of primary copper mineralization at Gaspe copper. This intensive drill program will lead to an updated mineral resource estimate, slated to be released in Q2 2026."

About Osisko Metals Inc.

Osisko Metals is a Canadian exploration and development company creating value in the critical metals sector, with a focus on copper and zinc. The company acquired a 100-per-cent interest in the past-producing Gaspe copper mine from Glencore Canada Corp. in July, 2023. The Gaspe copper mine is located near Murdochville in Quebec's Gaspe Peninsula. The company is currently focused on resource expansion of the Gaspe copper system, with current indicated mineral resources of 824 million tonnes grading 0.34 per cent copper equivalent (CuEq) and inferred mineral resources of 670 million tonnes grading 0.38 per cent CuEq (in compliance with National Instrument 43-101). For more information, see Osisko Metals' Nov. 14, 2024, news release, entitled, "Osisko Metals Announces Significant Increase in Mineral Resource at Gaspe Copper." Gaspe Copper hosts the largest undeveloped copper resource in Eastern North America, strategically located near existing infrastructure in the mining-friendly province of Quebec.

In addition to the Gaspe copper project, the company is working with Appian Capital Advisory LLP through the Pine Point Mining Ltd. joint venture to advance one of Canada's largest past-producing zinc mining camps, the Pine Point project, located in the Northwest Territories. The current mineral resource estimate for the Pine point project consists of indicated mineral resources of 49.5 million tonnes at 5.52 per cent zinc equivalent (ZnEq) and inferred mineral resources of 8.3 million tonnes at 5.64 per cent ZnEq (in compliance with NI 43-101). For more information, see Osisko Metals' June 25, 2024, news release, entitled, "Osisko Metals releases Pine Point mineral resource estimate: 49.5 million tonnes of indicated resources at 5.52% ZnEq." The Pine Point project is located on the south shore of Great Slave Lake, NWT, close to infrastructure, with paved road access, an electrical substation and 100 kilometres of viable haul roads.

We seek Safe Harbor.