IAMGOLD 2025 Drill Program Extends Mineralization at Nelligan and Monster Lake

Core Insights - IAMGOLD Corporation has announced positive assay results from its 2025 drilling programs at the Nelligan and Monster Lake projects, confirming the extension of mineralized zones at both sites [2][3] - The combined resources at Nelligan and Monster Lake are nearly 9 million ounces, positioning Nelligan among the largest gold projects in Canada with significant growth potential [3][16] Nelligan Project Highlights - The 2025 drilling program at Nelligan included 27 diamond drill holes totaling 11,583 meters, confirming significant extensions of gold-bearing zones, particularly in the Renard, Footwall, and Zone 36 areas [8][16] - Notable assay results include 20.6 meters at 1.93 grams per tonne (g/t Au) and 36.5 meters at 3.03 g/t Au, indicating high-grade mineralization [6][8] - As of December 31, 2024, Nelligan's estimated mineral resources comprised 102.8 million tonnes of Indicated Resources grading 0.95 g/t Au for 3.1 million ounces and 166.4 million tonnes of Inferred Resources grading 0.96 g/t Au for 5.2 million ounces [21][22] Monster Lake Project Highlights - The Monster Lake drilling program involved 16 diamond drill holes totaling 10,137.5 meters, aimed at expanding mineralized zones and improving resource classification [23][24] - Significant assay results include 4.9 meters at 127.3 g/t Au and 9.0 meters at 23.4 g/t Au, showcasing the high-grade nature of the mineralization [11][30] - As of December 31, 2024, the estimated mineral resources at Monster Lake included 239,000 tonnes of Indicated Resources grading 11.0 g/t Au for 84,200 ounces and 1,053,000 tonnes of Inferred Resources grading 14.4 g/t Au for 488,500 ounces [30] Future Exploration Plans - The next phases of drilling at both Nelligan and Monster Lake will focus on infill drilling to convert Inferred Resources into Indicated Resources and to explore deeper extensions of the mineralized zones [14][25] - Regional exploration activities will continue to refine geological and structural models to identify additional targets for evaluation [15][25]