Hercules completes 16 drill holes at Hercules

Executive Summary

• Hercules Metals reports that 16 drill holes have been completed and over 13,000 m drilled at the Leviathan porphyry copper system in western Idaho during its 2025 campaign.
• A new large‑scale target (“Donut anomaly”) has entered the initial exploration phase, with multiple holes underway to test a three‑kilometre‑wide MT signature that could represent a second porphyry centre.
• Definition drilling is confirming continuity in both Footwall and Hangingwall zones, suggesting mineralization may extend up to 1 km in the Footwall and remains open to the south.

Key Details

• Drilling Progress: 16 holes completed; 1 hole in progress at Leviathan; 2 holes progressing on the Southern Flats zone. Total depth drilled >13,000 m.
• Assays Pending: Samples from nine holes are awaiting laboratory assay results.
• Footwall Zone: Holes 25‑14 (in progress), 18 and 21 (precollared) testing continuity; mineralization potentially extends ~1 km.
• Hangingwall Zone: Hole 25‑16 testing southern extension into Southern Flats; holes 25‑22 and 25‑23 evaluating the Donut anomaly as a possible separate porphyry centre.
• Donut Anomaly: Strong conductivity signature spanning >3× the width of Leviathan, indicating district‑scale potential; drilling will continue until complete fence coverage is achieved.
• Contractor Activity: RC Drilling completed seasonal work; three precollared holes remain for core drilling. Dorado Drilling USA delivered deep holes on schedule with cost savings; a third Dorado rig mobilized for the remainder of the campaign. Scout Drilling contract concluded.
• Qualified Person: Technical disclosure reviewed and approved by Dillon Hume, P.Geo., Vice‑President Exploration (NI 43‑101 qualified person).

Notable Quotes

“I am encouraged by the steady progress of our 2025 drilling campaign… By employing a fence‑based approach, we are able to pinpoint holes that demonstrate the strongest continuity across each 200‑metre section, systematically expanding the deposit and delivering value for our shareholders.” – Chris Paul, CEO & Director

“This new target, referred to as the Donut anomaly, reveals a strong conductivity signature that spans more than three times the width of Leviathan, underscoring the district‑scale potential of this new and emerging porphyry copper belt in the United States.” – Chris Paul