Monitor year-end 2026 resource/reserve update for Diamba Sud and Q1 2027 initial resource estimate for Kabewest, which will quantify the impact of these exploration results on the project's economics.
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Executive Summary
Fortuna Mining Corp. reported positive exploration drilling results at its Diamba Sud Gold Project in Senegal, including high-grade gold intercepts at the Southern Arc and Kassasoko deposits, and commenced an $8 million, 51,000-meter drilling campaign at the newly acquired Bambadji project. The results show mineralization extending beyond current pit designs, supporting potential resource expansion, and the Bambadji drilling targets a large, advanced prospect near the proposed plant site. This is a routine exploration update with no financial data or changes to guidance, making it a neutral operational development.
Key Facts
- 196 reverse circulation and diamond drilling holes totaling 36,592 meters completed at Southern Arc since February 2026, concluding the program.
- Highlights include 7.8 g/t Au over 12.8 meters (DSR1128), 4.5 g/t Au over 20.0 meters (DSR1132), and 3.9 g/t Au over 40.8 meters (DSR1149) at Southern Arc.
- 53 RC and DD holes totaling 8,787 meters completed at Kassasoko, with highlights including 5.0 g/t Au over 5.6 meters (DSR1119) and 4.8 g/t Au over 11.2 meters (DSR1169).
- Drilling commenced at Kabewest on the Bambadji project with six rigs as part of an $8 million, 51,000-meter exploration program for the remainder of 2026.
- An updated Mineral Resource and Mineral Reserve estimate is intended for year-end; an initial Inferred Mineral Resource estimate for Kabewest is expected in Q1 2027.
- Probable Mineral Reserves at Diamba Sud: 20.5 million tonnes at 1.75 g/t Au, containing 1.15 million ounces of gold.
Financial Impact
No financial figures reported; $8 million exploration budget for Bambadji in H2 2026.
Risk Factors
- Exploration results are preliminary; mineralization remains open and further drilling is required to confirm resource expansion.
- No assay results yet from Bambadji drilling; Kabewest resource estimate is contingent on pending results.
- Development of Diamba Sud subject to permitting, financing, and execution risks.
Investment Themes
Documents Analyzed
This report is based on 5 SEC documents filed with EDGAR.
| Document | Accession Number |
|---|---|
| 6-K Filing (Primary) | 0001104659-26-115270 |
| Document: tm2627491d1_6k.htm | 0001104659-26-115270 |
| Document: 0001104659-26-115270-index-headers.html | 0001104659-26-115270 |
| Document: 0001104659-26-115270-index.html | 0001104659-26-115270 |
| Document: 0001104659-26-115270.txt | 0001104659-26-115270 |
Filters
| Type | Now | ||||
|---|---|---|---|---|---|
Oct 22, 2026 4d ago | 6-K | $9.52 | awaiting T+60 | — | $9.30 (−2.31%) |
Oct 20, 2026 6d ago | 6-K | $10.39 | awaiting T+60 | — | $9.30 (−10.49%) |
Oct 13, 2026 13d ago | 6-K | $10.58 | awaiting T+60 | — | $9.30 (−12.10%) |
Oct 8, 2026 18d ago | SC 13G/A | $10.61 | awaiting T+60 | — | $9.30 (−12.35%) |
Oct 7, 2026 19d ago | 6-K | $10.12 | awaiting T+60 | — | $9.30 (−8.10%) |
Sep 24, 2026 4w ago | 6-K | $11.50 | awaiting T+60 | — | $9.30 (−19.13%) |
Aug 10, 2026 11w ago | Press Release | $10.83 | awaiting T+60 | — | $9.30 (−14.13%) |
Aug 5, 2026 11w ago | Press Release | $9.56 | awaiting T+60 | — | $9.30 (+2.72%) |
Jul 30, 2026 12w ago | 6-K | $8.77 $9.18 | ▲ +4.67% | ▲ +2.21% | $9.30 (+6.04%) |
Jul 23, 2026 13w ago | 6-K | $8.42 $10.54 | ▲ +25.18% | ▲ +20.63% | $9.30 (+10.45%) |
US Market Status
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