Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) has reported its first drilling results from the Kabewest prospect at the Bambadji Project in Senegal, delivering broad gold mineralisation intervals across multiple holes. The headline intercept of 1.9 g/t Au over an estimated true width of 64 metres from 19 metres in drill hole FBRC0008 reinforces the company's geological model and its strategy to expand the adjacent Diamba Sud Gold Project. With approximately 70 per cent of assays received, Fortuna expects to publish an initial Inferred Mineral Resource estimate for Kabewest in the first quarter of 2027, a milestone investors will be watching closely.

Key Points

  • Fortuna Mining Corp. (NYSE: FSM | TSX: FVI; Investegate reference: 0QYM)
  • First drilling results from Kabewest prospect at the Bambadji Project, Senegal, return broad gold mineralisation including 1.9 g/t Au over 64 metres estimated true width in hole FBRC0008
  • Initial 45-hole, 10,524-metre programme completed; part of a broader $8 million, 51,000-metre campaign across the Bambadji Project planned through end of 2026
  • Investors should watch for remaining assay results and the initial Inferred Mineral Resource estimate targeted for Q1 2027

Kabewest Drilling Returns Broad Gold Intervals Including 3.2 g/t Au from Surface at Bambadji

The initial Kabewest drilling programme comprised 45 reverse circulation and diamond drill holes totalling 10,524 metres. Among the highlighted intercepts, hole FBRC0008 returned 1.9 g/t Au over an estimated true width of 64 metres from 19 metres, including a higher-grade zone of 16.3 g/t Au over 1.5 metres. Hole FBDD0008 intersected 3.2 g/t Au over 24 metres from surface, with internal grades reaching 11.3 g/t Au over 1.5 metres and 12.2 g/t Au over 0.7 metres. Hole FBRC0003 returned 3.1 g/t Au over 24.2 metres from 4 metres, including 15.1 g/t Au over 0.7 metres. Mineralisation has been traced over more than 600 metres of strike and remains open along strike and at depth.

Kabewest Mineralisation Mirrors Breccia-Hosted Geology at the Neighbouring Diamba Sud Gold Project

The announcement states that mineralisation at Kabewest is associated with hydrothermal breccia units, hematite-silica-altered limestone, and extensive pyrite development — geological features consistent with those observed at the nearby Diamba Sud deposits. Kabewest sits approximately 2.3 kilometres from the proposed Diamba Sud plant site. Senior Vice President of Exploration Paul Weedon noted in the announcement that results "show clear similarities to the breccia-hosted mineralization at Diamba Sud" and that they "build confidence in the interpreted controls on mineralization and in Bambadji's potential to expand Diamba Sud." Both projects are located within the Falémé domain along the Senegal-Mali Shear Zone.

$8 Million Bambadji Drilling Programme Advances to Wari and Latifa Prospects

Following completion of the initial Kabewest phase, Fortuna's six drill rigs have been relocated to the Wari and Latifa prospects, with three rigs assigned to each. This work forms part of an $8 million, 51,000-metre programme planned across at least eight priority prospects at Bambadji through the end of 2026. The Bambadji Project was acquired from Barrick and IAMGOLD, as announced on 10 August 2026. Fortuna Mining operates three producing mines in Argentina, Côte d'Ivoire, and Peru, with Diamba Sud representing its feasibility-stage development asset. The company is also using geochemical and geophysical data to refine targets across more than 60 kilometres of strike within the project.

Initial Inferred Mineral Resource Estimate for Kabewest Targeted for Q1 2027

Approximately 30 per cent of assays from the initial Kabewest programme remain outstanding, with results expected in the coming weeks. Fortuna's geological team is updating models to incorporate the full dataset ahead of preparing an initial Inferred Mineral Resource estimate for Kabewest, which the company intends to include in its annual Mineral Reserve and Mineral Resource update planned for publication in the first quarter of 2027. Resource estimation timelines in exploration-stage projects carry inherent uncertainty, including risks relating to geological interpretation, assay completeness, and regulatory approvals — factors the company's forward-looking statements explicitly acknowledge.