Mr. Jorge Ganoza reports

FORTUNA SUBMITS EXPLOITATION PERMIT APPLICATION FOR THE DIAMBA SUD GOLD PROJECT, SENEGAL

Fortuna Mining Corp. has submitted an application for an exploitation permit for the Diamba Sud gold project to the Ministry of Energy, Petroleum, and Mines on Feb. 4, 2026.

The company continues to advance early works and engineering at Diamba Sud, including site preparation activities and detailed engineering programs designed to derisk critical path activities and support the feasibility study. Fortuna also plans to publish an updated mineral resource estimate for Diamba Sud by the end of the month. This update will form the basis for the estimation of mineral reserves to be used in the feasibility study and will support the evaluation of a potential construction decision targeted for mid-2026. Robust project economics were demonstrated in the preliminary economic assessment (PEA) completed in October, 2025 (refer to Fortuna news release dated Oct. 15, 2025).

About Fortuna Mining Corp.

Fortuna Mining is a Canadian precious metals mining company with three operating mines and a portfolio of exploration projects in Argentina, Ivory Coast, Mexico and Peru, as well as the Diamba Sud gold project in Senegal. Sustainability is at the core of the company's operations and stakeholder relationships. The company produces gold and silver while creating long-term shared value through efficient production, environmental stewardship and social responsibility.

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