Fortuna delivers robust Feasibility Study for the Diamba Sud Gold Project in Senegal: After-tax IRR of 60% and NPV5% of US$1 billion using US$3,500/oz

(All financial information contained herein are expressed in US dollars unless otherwise stated) VANCOUVER, British Columbia, June 29, 2026 (GLOBE NEWSWIRE) — Fortuna Mining Corp. (NYSE: FSM | TSX: FVI) announces positive results from the feasibility study (“FS”) for its Diamba S