Fortuna Mining Corp. (NYSE:FSM, TSX:FVI) announces that the Company has received the environmental decree from Senegal's Ministry of Environment and Ecological Transition approving the Environmental and Social Impact Assessment for the Diamba Sud Gold Mine. This authorization certifies that the project complies with all applicable environmental regulations and has been socially accepted by the project's stakeholders. It marks a decisive step towards obtaining the mining permit following the submission of its application to the Ministry of Energy, Petroleum, and Mines on February 4, 2026.