Fortuna Mining Reports 73% Resource Boost, 8.4 g/t Gold over 10.4m

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Fortuna Mining reported high-grade drilling at Diamba Sud’s Southern Arc deposit, including 6.0 g/t gold over 24.1 meters and 8.4 g/t gold over 10.4 meters. The Indicated Mineral Resource rose 73% to 1.25 million ounces, with Southern Arc now hosting 367,000 ounces at 1.9 g/t.

1. High-Grade Drill Results

Recent drilling at Diamba Sud’s Southern Arc returned high-grade intersections including 6.0 g/t gold over 24.1 meters and 8.4 g/t gold over 10.4 meters, reinforcing continuity of mineralization and potential for further high-grade zones.

2. Significant Resource Upgrade

The Indicated Mineral Resource for the project increased by 73% to 1.25 million ounces, with Southern Arc now the largest deposit on the property hosting 367,000 ounces at an average grade of 1.9 g/t.

3. Active Drilling Program

Fortuna Mining completed 44 holes totaling over 7,500 meters of drilling primarily above 200 meters depth, with mineralization remaining open at depth and along strike to the southwest and northeast, and five rigs continuing to test extensions.

4. Regional Prospect Successes

Additional prospects at Moungoundi, Area D and Karakara delivered strong assays, highlighted by 46.3 g/t gold over 13.6 meters at Area D, supporting the regional exploration upside across Diamba Sud.

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