Denison Announces Discovery of Additional High-Grade Mineralization at Gryphon and Reports Results from Successful Delineation Program

TORONTO, July 16, 2025 /PRNewswire/ - Denison Mines Corp. ("Denison" or the "Company") (TSX: DML) (NYSE American: DNN) is pleased to announce the discovery of additional high-grade mineralization approximately 40 metres outside of the previously estimated mineralized domain associated with the D1 lens of the Gryphon uranium deposit ("Gryphon"). Drill hole WR-837AD2 intersected 2.3 metres at 1.69% eU3O8 including 0.5 metres at 5.48% eU3O8 in the down plunge direction from the previously defined D1 lens. This ...