Fortuna drills 22.7 g/t gold over 21.6 meters at Southern Arc, Diamba Sud Gold Project, Senegal

Core Viewpoint - Fortuna Mining Corp. reports promising exploration drilling results from the Southern Arc deposit at the Diamba Sud Gold Project in Senegal, indicating potential for resource growth and further exploration planned for September 2025 [1][2]. Exploration Results - Drillhole DSDD488 intersected 22.7 g/t Au over an estimated true width of 21.6 meters from a depth of 53 meters, highlighting high-grade intercepts [2]. - Additional notable results include: - DSDD418: 6.3 g/t Au over 18.2 meters from 31 meters, with higher grades of 23.3 g/t Au over 0.8 meters from 40 meters [3]. - DSDD440: 10.4 g/t Au over 0.8 meters from 41 meters and 19.4 g/t Au over 0.8 meters from 43 meters [3]. - DSDD444: 33.5 g/t Au over 0.8 meters from 45 meters and 9.7 g/t Au over 20.8 meters from 117 meters [3]. - DSDD4621: 4.2 g/t Au over 31.2 meters from 5 meters, including 13.3 g/t Au over 0.8 meters from 7 meters [3]. Drilling Program Overview - A total of 152 reverse circulation and diamond core drill holes have been completed, totaling 21,234 meters since the last update [4]. - Of these, 53 drill holes were completed after the data cutoff for the maiden Inferred Mineral Resource estimate of 3.9 million tonnes averaging 1.57 g/t Au, containing 194,000 ounces of gold [6]. Future Plans - Drilling is set to resume in September 2025 after the rainy season, with further results expected by year-end [2][5]. - An updated resource estimate is planned for the first quarter of 2026, incorporating the results from the recent drilling [6]. Geological Context - Mineralization at Southern Arc is characterized by fine stockwork vein arrays and pyrite-silica flooding, with a strong correlation to tectonic breccias and carbonate units [7]. - The mineralization remains open at depth and along strike to the south and east, indicating further exploration potential [7].