Enduro expands Andrei porphyry target to six square km

Executive Summary

• Enduro Metals completed its 2025 airborne magnetic survey (2,000 km line‑kilometres) and ground IP work (20 km) over the Andrei porphyry Cu‑Au target, expanding the interpreted mineralized zone to ~6 km².
• Surface mapping, rock and soil sampling across multiple targets (Andrei, Twin, Chachi, McLymont, Orange, Camp) have identified extensive monzonite/diorite intrusions with copper‑bearing veins and magnetite alteration.
• The company is positioning for a maiden drill campaign at Andrei in 2026, with targeting to be refined once final geophysical and geochemical data are received (expected September 2025).

Key Details

• Airborne Geophysics: 2,000 line‑km of magnetic surveying at 100 m line spacing using SHA Geophysics’ Heli‑GT system; two blocks covering Andrei target and the southwestern corner near Seabridge’s Snip North discovery.
• Ground IP Survey: 20 line‑km completed over Andrei (12 lines @ 400 m spacing + one longitudinal line). Processed data pending.
• Surface Work: Comprehensive geological mapping, rock sampling, and soil sampling across Andrei, Twin, Chachi, McLymont, Orange, Camp.
• Andrei Target Expansion: Outcrop area now ~4.5 km × 1.5 km; target footprint increased to ~6 km², extending 3.4 km southwest from the original North Toe occurrence.
• Geological Highlights: Presence of potassic‑altered monzonite dikes/plugs, stockwork quartz‑magnetite veins with chalcopyrite and bornite; extensive magnetite alteration zones identified.
• Future Drilling Plan: Maiden drill program slated for 2026; targeting will integrate high‑resolution magnetic data and ground IP results to aim at sulphide‑rich domains to depths of ~450 m.
• Twin Target: High‑resolution airborne magnetic survey completed; initial silt, soil sampling and prospecting undertaken; potential 7 km extension of the regional Bronson trend.
• Other Targets Reviewed: Burgundy, McLymont, Ken, Chachi, Orange – geological review and new age‑dating studies to inform future work.
• Academic Collaboration: Sponsored research with UBC Okanagan and University College London; hosted B.C. Geological Survey team for intrusive rock mapping and age dating.
• Qualified Person: Mr. Robert Cameron, P.Geo., NI 43‑101 qualified, responsible for technical content; field supervision by Stephen Wetherup, P.Geo., VP Exploration.

Notable Quotes

“We are very pleased with the progress of our 2025 exploration program at Newmont Lake… we expect to receive final geochemical and geophysical data shortly which will allow focused and informed follow‑up work in September.” – Robert Cameron, CEO, Enduro Metals Corp.