OSISKO INTERSECTS 694 METRES AVERAGING 0.31% Cu AT GASPÉ

Osisko Metals has reported highly encouraging drill results from its Gaspé Copper Project in Quebec's Gaspé Peninsula, reinforcing the project's expansion potential and resource growth trajectory. The company announced results from 19 new drill holes and two re-assayed historic holes, with the standout intercept being 694 metres averaging 0.31% copper from hole 30-1168. These results continue to demonstrate the deposit's significant scale and grade consistency across extensive intervals.

The Southern Extension drilling program has proven particularly successful, with multiple holes confirming mineralization extends well beyond the current resource model boundaries. Drill hole 30-1177, located 150 metres south of the 2024 mineral resource estimate model limit, intersected 315 metres averaging 0.42% copper, including a high-grade zone of 51 metres at 1.24% copper and 14.5 g/t silver. Even more significantly, re-analysis of historic Noranda drill core from hole 30-0888, located 625 metres south of the resource model, returned 92.9 metres averaging 0.35% copper from surface, demonstrating the deposit remains open for at least 600 metres beyond current boundaries.

The drilling program serves dual purposes of resource expansion and category conversion, with infill holes designed to upgrade inferred resources to measured and indicated categories while expansion holes test new areas. The mineralization is characterized as porphyry copper/skarn type, occurring as disseminations and stockworks throughout the system. The company has identified multiple mineralizing events and zones, including high molybdenum grades up to 0.5% in certain areas, adding potential byproduct value to the copper-focused project.

These results position Osisko Metals favorably ahead of an updated mineral resource estimate scheduled for release at the end of March 2026, with the next comprehensive update planned for Q1 2026. The consistent intersection of thick, moderate-grade copper mineralization across the drilling program, combined with the demonstrated southern extension potential, suggests the Gaspé Copper Project could see substantial resource growth. For the broader copper sector, these results highlight Quebec's emerging potential as a significant copper jurisdiction, particularly relevant given growing demand for domestic copper sources to support the energy transition.