Fortuna Mining Updates Séguéla Gold Mine Reserves to 1.54M Oz, Initiates Underground Mining Plan
FSM sits 77% above its 52-week low of $5.13.
Summary
Fortuna Mining Corp. announced updated Mineral Reserve estimates for its Séguéla Gold Mine, increasing total reserves to 1.54 million ounces and including first-time underground reserves at the Sunbird deposit, extending the mine life to nine years.
Key Events · Financing and Capital Events · FSM
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Updated Mineral Reserves
Total Proven and Probable Mineral Reserves for the Séguéla Gold Mine increased to 15.96 million tonnes at 3.01 g/t Au, totaling 1.54 million ounces of gold, effective December 31, 2025.
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First-Time Underground Reserves
The updated reserves include a first-time estimation of 3.47 million tonnes at 3.60 g/t Au for 401,000 ounces of Probable underground reserves at the Sunbird deposit.
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Extended Mine Life and Production Plan
The integrated Life-of-Mine Plan (LOMP) projects a 9-year mine life from December 31, 2025, with underground operations at Sunbird commencing in 2028 to supplement open pit feed.
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Significant Capital Investment
The LOMP includes $292 million in sustaining capital and an additional $51.9 million in non-sustaining capital for underground mine development in 2026-2027.
Analysis · FSM · Energy & Transportation
The updated technical report for Fortuna Mining's Séguéla Gold Mine is a highly positive development, significantly enhancing the company's asset base and long-term production outlook. The report details a substantial increase in total gold reserves to 1.54 million ounces, notably including the first-time estimation of 401,000 ounces of Probable underground reserves at the high-grade Sunbird deposit. This strategic move extends the mine's projected life to nine years and introduces a higher-grade underground component, which is expected to supplement open pit feed from 2028. While the company anticipates significant capital expenditures, including $292 million in sustaining capital and $51.9 million in non-sustaining capital for underground development, these investments are aimed at maximizing the value and longevity of the operation. The identified permitting pathway for underground mining, with full approval expected by 2027, provides a clear timeline for this expansion. This comprehensive update reinforces the Séguéla Mine's robust operational foundation and growth potential.
At the time of this filing, FSM was trading at $9.09 on NYSE in the Energy & Transportation sector, with a market capitalization of approximately $2.8B. The 52-week trading range was $5.13 to $13.85. This filing was assessed with positive market sentiment and an importance score of 9 out of 10.