Fortuna Reports Additional Gold Mineralization At Sunbird Deposit

Key Concepts

• Fortuna Mining: A mining company focused on gold production.
• Sunbird Deposit: A high-grade gold mineralization site within Fortuna’s Sigua mine.
• g/t (grams per ton): A unit of concentration used to measure the grade of gold ore.
• Mineralization: The occurrence of valuable minerals within a rock formation.
• Resource & Reserve Envelopes: Defined areas containing estimated mineral resources (potentially economic) and mineral reserves (economically viable to extract).
• Infill Drilling: Drilling conducted to increase the confidence in existing resource estimates.
• Extension Drilling: Drilling conducted to explore for mineralization beyond known resource boundaries.
• True Width: The actual thickness of a mineralized zone, as opposed to the apparent thickness measured along the drill core.

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Fortuna Mining – Sunbird Deposit Drill Results: Detailed Analysis

This report details recent drill results from Fortuna Mining’s Sunbird deposit, located within their Sigua mine. The findings indicate a significant extension of high-grade gold mineralization, bolstering the potential for resource growth.

High-Grade Mineralization Extension & Key Intercepts

Paul Weeden, Senior VP of Exploration at Fortuna, confirms that ongoing drilling at Sunbird demonstrates the continuation of high-grade mineralization both in width and at depth. Fortuna currently has five drill rigs operating at Sunbird, focused on expanding the known mineralization. The results build upon previously reported high-grade intercepts.

Specific drill results highlighted include:

• 6.1 g/t gold over 18.9 m: A significant intercept demonstrating the width of the mineralization.
• 15.4 g/t gold over a true width of 4.2 m: Illustrates high gold concentration within a relatively narrow zone.
• 4.1 g/t gold over 13.3 m: Represents consistent, moderate-grade mineralization over a substantial length.
• 13.9 g/t gold over 4.9 m: Another high-grade intercept, indicating localized areas of concentrated gold.
• 13.0 g/t gold over 4.2 m: Further confirmation of high-grade mineralization.

Drilling Program Details & Progress

A total of 22 drill holes, comprising 9,816 meters of drilling, have been completed as part of Fortuna’s underground resource confidence, infill, and extension drilling program. This program is divided into two primary focuses:

• Extension Drilling (Lower Chute): This component successfully delineated high-grade gold mineralization approximately 400 meters beyond the existing mineral resource and mineral reserve envelopes. The 13 g/t over 4.2 m intercept is a direct result of this extension drilling.
• Infill Drilling: This drilling aimed to increase confidence in the existing resource model and yielded results including 4.1 g/t over 11.9 m.

Open Mineralization & Future Exploration

Crucially, the mineralization at the Sunbird deposit remains open at depth and along strike. Drilling is planned to continue throughout 2026, suggesting a long-term commitment to expanding the resource base. This ongoing exploration is expected to be a key topic of discussion with Jorge, a representative from Fortuna Mining, in a scheduled earnings call later this week.

Fortuna’s Position & Financial Implications

The presenter emphasizes Fortuna’s strong position, noting that the company is performing well even at current gold prices. This suggests Fortuna is not reliant on significantly higher gold prices to maintain profitability and continue exploration. The Sunbird deposit is identified as a significant component of Fortuna’s overall pipeline of projects.

Call to Action & Further Information

Viewers are encouraged to subscribe to Arcadia Economics and enable notifications, particularly if they are shareholders in mining stocks or Fortuna Mining specifically. A previous call with Jorge, providing an update on Fortuna, is also being made available to viewers.

Synthesis

The recent drill results from Fortuna Mining’s Sunbird deposit are highly encouraging, demonstrating a substantial extension of high-grade gold mineralization. The ongoing drilling program, coupled with Fortuna’s strong financial position, positions the company for continued resource growth and potential future profitability. The open mineralization at depth and along strike suggests significant exploration potential remains, making Sunbird a key asset for Fortuna Mining.