Leviathan Footwall Zone Continues To Demonstrate Strong Continuity

TORONTO – Hercules Metals Corp. reported on its ongoing 2025 drilling campaign on the Leviathan porphyry copper discovery at its Hercules Property in western Idaho. Results continue to demonstrate strong continuity and thickness of Leviathan’s Footwall Zone. Drill hole HER-25-12 returned 285 m of 0.47% Cu, 63 ppm Mo, and 1.0 g/t Ag, including 56 m of 0.89% Cu, 41 ppm Mo, 1.7 g/t Ag. The first 2025 drill hole in the Southern Flats Zone, HER-25-06, intersected 10.7 m grading 257.2 g/t Ag, 2.18% Pb, and 4.62% Zn (420.5 g/t AgEq), within a broader interval of 119.9 m grading 31.2 g/t Ag, 0.29% Pb, and 0.86% Zn (59.7 g/t AgEq), revealing the presence of strong epithermal mineralization concealed in Southern Flats. The hole reached its Triassic lower plate target for porphyry copper mineralization, but terminated short of its planned depth, intersecting a narrow interval of bornite-chalcopyrite mineralization grading 1.06% Cu and 0.29 g/t Au over 4.57 m. Pyrite “D-veins” were observed downhole with sericite-chlorite alteration, typical of the outer phyllic halo of a porphyry system, with the final 5.7 m of the hole ending in 68.9 g/t Ag.

Although the hole was lost before reaching its target depth, the alteration observed is consistent with proximity to a nearby porphyry center. Step-out drilling in HER-25-25 is designed to follow up on these results.

Chris Paul, CEO and Director, said, “Drilling continues to expand the continuity and thickness in Leviathan’s Footwall Zone. HER-25-12 extends the full width of the Footwall Zone approximately 400 meters southwest of HER-25-02, with early indications from other holes suggesting potential for increasing hypogene enrichment along trend to the southwest.

“Meanwhile, a significant new epithermal silver discovery in HER-25-06 serves as a reminder of the upside potential provided by multiple mineralizing systems at Hercules, adding value while helping vector toward the next potential porphyry center on the project.

“With fieldwork complete on the Phase II MT survey, we also expect to soon have a refined, high-resolution model of the 5 km Leviathan anomaly to materially enhance targeting of new porphyry and epithermal centers indicated at Southern Flats, focusing on areas with reduced cover thickness to the south.”