Fortuna Mining Updates Diamba Sud Gold Resource Estimate
Written by Emily J. Thompson, Senior Investment Analyst
Updated: 1 hour ago
0mins
Should l Buy FSM?
Source: seekingalpha
- Resource Estimate Increase: Fortuna Mining has reported an updated mineral resource estimate for its Diamba Sud Gold project, raising indicated resources to 1.25 million ounces of gold, which underscores the project's potential value and attractiveness, likely drawing more investor interest.
- Feasibility Study Progress: The company is advancing the feasibility study for the Diamba Sud Gold project, with a potential construction decision targeted for mid-2026 and study delivery expected by the end of Q2 2026, laying the groundwork for future project development.
- Ongoing Exploration Success: Continued exploration drilling at Southern Arc, Moungoundi, and additional new targets has intersected mineralization beyond current resource envelopes, highlighting further growth potential that may support the company's future resource expansion.
- Market Position Analysis: Fortuna Mining remains richly priced compared to its West African peers, indicating market recognition of its strategic pivot towards high-margin quality, which could provide support for its future stock performance.
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Analyst Views on FSM
Wall Street analysts forecast FSM stock price to fall
4 Analyst Rating
3 Buy
0 Hold
1 Sell
Moderate Buy
Current: 10.350
Low
6.48
Averages
9.59
High
11.00
Current: 10.350
Low
6.48
Averages
9.59
High
11.00
About FSM
Fortuna Mining Corp. is a Canadian precious metals mining company. The Company's mines include Seguela Mine, Lindero Mine and Caylloma Mine. The Seguela Mine is located in the Worodougou Region of the Woroba District, Cote d’Ivoire, approximately 500 kilometers (kms) from Abidjan, via highways to the regional city of Seguela. The Seguela Mine in Cote d’Ivoire consists of the Antenna, Koula, Agouti, Boulder, Ancien, and Sunbird deposits, which may be mined via open-pit methods. Within a total land package of 62,000 hectares, there are more than 30 highly prospective targets. The Lindero Mine is an open pit mine, which is located in Salta, Argentina and includes gold porphyry deposits. The Caylloma Mine is located in the Caylloma District of Arequipa, Peru, which produces silver, gold, zinc, and lead. The site is 4,500 meters above sea level and includes the mine, a processing plant, and related infrastructure. The Company's Diamba Sud project is located in Senegal.
About the author

Emily J. Thompson
Emily J. Thompson, a Chartered Financial Analyst (CFA) with 12 years in investment research, graduated with honors from the Wharton School. Specializing in industrial and technology stocks, she provides in-depth analysis for Intellectia’s earnings and market brief reports.

- Record Free Cash Flow: Fortuna Mining Corp achieved a record free cash flow of $132.3 million in Q4 2025 and $330.0 million for the year, demonstrating successful execution of its operational plan, which enhances financial stability and future investment capacity.
- Shareholder Return Initiatives: The company returned $16.2 million to shareholders through its share buyback program in 2025, further boosting shareholder confidence, with an additional $5.0 million returned in early 2026, reflecting a strong commitment to shareholder value.
- Mineral Reserve Expansion: The mineral reserves at the Séguéla mine increased by 31%, extending the mine life to over nine years, a strategic move that will provide robust support for future production and enhance the company's competitive position in the market.
- Capital Expenditures and Growth Investments: Fortuna allocated approximately $67 million to advance early works and order critical equipment for the Diamba Sud gold project, aimed at de-risking construction and preparing for a construction decision targeted for mid-2026, showcasing the company's firm commitment to future growth.
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- Significant Resource Increase: Fortuna Mining announced that the Diamba Sud Gold Project's indicated mineral resources now total 1.25 million ounces, reflecting a 530,000-ounce increase from the previous estimate, which demonstrates the project's growth potential and lays a strong foundation for the feasibility study expected by mid-2026.
- Strategic Importance of Gold Project: CEO Jorge A. Ganoza highlighted that 73% of the indicated gold resources are now confirmed, which not only enhances the project's economic viability but also supports Fortuna's goal of producing over 500,000 ounces of gold annually.
- First Estimation of Southern Arc Deposit: The Southern Arc deposit has been estimated for the first time at 367,000 ounces of indicated mineral resources, establishing it as the largest gold deposit discovered at Diamba Sud to date, further boosting overall resource confidence.
- Ongoing Exploration and Technical Progress: The company is conducting ongoing exploration at Southern Arc and Moungoundi, which is expected to further expand mineral resources, while technical studies are advancing with a feasibility study targeted for completion by Q2 2026 to support future construction decisions.
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- Resource Estimate Increase: Fortuna Mining has reported an updated mineral resource estimate for its Diamba Sud Gold project, raising indicated resources to 1.25 million ounces of gold, which underscores the project's potential value and attractiveness, likely drawing more investor interest.
- Feasibility Study Progress: The company is advancing the feasibility study for the Diamba Sud Gold project, with a potential construction decision targeted for mid-2026 and study delivery expected by the end of Q2 2026, laying the groundwork for future project development.
- Ongoing Exploration Success: Continued exploration drilling at Southern Arc, Moungoundi, and additional new targets has intersected mineralization beyond current resource envelopes, highlighting further growth potential that may support the company's future resource expansion.
- Market Position Analysis: Fortuna Mining remains richly priced compared to its West African peers, indicating market recognition of its strategic pivot towards high-margin quality, which could provide support for its future stock performance.
See More
- Significant Performance Growth: Fortuna Silver Mines reported a Q4 2024 non-GAAP EPS of $0.23 with revenues of $270.2 million, reflecting a 38.4% year-over-year increase, demonstrating the company's successful execution of its operational plan and solidifying its market position.
- Record Free Cash Flow: The company achieved record quarterly and annual free cash flows of $132.3 million and $330.0 million respectively, indicating strong ongoing operations and providing ample funds for future investments and shareholder returns.
- Substantial Liquidity Improvement: At quarter-end, liquidity increased to $704 million, with a net cash position rising from $58.8 million at the end of 2024 to $381.5 million, a year-over-year increase of $322.7 million, which supports the company's future expansion and risk management strategies.
- Production and Cost Control: Gold equivalent production reached 65,130 ounces, with an expected 317,001 GEOs in 2025, and consolidated cash costs of $971 per GEO, in line with guidance, showcasing effective management in cost control and production efficiency.
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- Record Free Cash Flow: Fortuna achieved a record free cash flow of $132.3 million in Q4 2025 and $330.0 million for the full year, demonstrating successful execution of its operational plan, which enhances financial stability and future investment capacity.
- Increased Shareholder Returns: The company returned $16.2 million to shareholders through its share buyback program in 2025, with an additional $5.0 million in early 2026, reflecting a strong commitment to shareholder value and boosting market confidence.
- Production and Cost Management: Despite an annual cash cost of $971 per gold equivalent ounce and an AISC of $1,870, the adjusted AISC was below $1,700 due to rising metal prices impacting royalties, showcasing effective cost control measures by the company.
- Mineral Reserve Expansion: The mineral reserves at the Séguéla mine increased by 31%, extending the mine life to over nine years, indicating positive progress in resource development and laying a foundation for future production growth.
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- Earnings Announcement Schedule: Fortuna Silver Mines is set to announce its Q4 2023 earnings on February 17 after market close, with a consensus EPS estimate of $0.23, indicating investor focus on the company's profitability.
- Historical Performance Review: Over the past two years, Fortuna has beaten EPS estimates 38% of the time and revenue estimates 50% of the time, demonstrating relative stability in its earnings performance despite market fluctuations.
- Expectation Revision Dynamics: In the last three months, there have been no upward revisions to EPS estimates and two downward revisions, which may reflect a cautious market sentiment regarding the company's future profitability, potentially impacting investor confidence.
- Industry Comparison Analysis: Fortuna's valuation remains high compared to its West African peers, suggesting optimistic market expectations for its growth potential, although it may also face competitive pressures from its counterparts.
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