Enduro Metals Geophysics Defines 4 km Andrei Target at Newmont Lake

Vancouver, British Columbia--(Newsfile Corp. - October 6, 2025) - Enduro Metals Corporation (TSXV: ENDR) ("Enduro", "Enduro Metals" or the "Company") reports 2025 geophysical results that confirm the prospectivity of the Andrei porphyry copper-gold (Cu-Au) target at its 100%-owned 688 km² Newmont Lake Project in the Golden Triangle of British Columbia (Figure 1). The program comprised a 2,000 line-kilometer high-resolution airborne magnetic survey over the Andrei and Twin targets and 20 line-kilometers of ground induced polarization ("IP") over the Andrei target.

Highlights:

• Andrei prospectivity confirmed: high-resolution magnetics and IP define a large, coherent, coincident geophysical footprint consistent with a porphyry system at Andrei; results will be used to select and prioritize 2026 drill targets.

• Airborne magnetics: 2,000 line-kilometres of magnetic surveying at 100 metre line spacing completed in over the Andrei and Twin targets using SHA Geophysics' Heli-GT system. Large magnetic anomalies have been outlined.

• Ground IP: 20 line-kilometers of ground IP surveying completed at the Andrei porphyry target (12 lines at 400 metre spacing plus 1 longitudinal line) has delineated a 4 km by 1.2 zone of elevated chargeability. Two internal zones exceed 15 mv/v, broadly coincident with high resistivity and magnetic highs.

• Geological mapping at Andrei shows a large mineralized system characterized by low-sulfur, magnetite-rich alteration (replacement masses, breccia infill, stockworks and sheeted veins) with lesser pyrite and local chalcopyrite-bornite. A late iron carbonate vein system with associated barite and minor quartz is copper bearing with large masses of chalcopyrite and local bornite. Older Enduro sampling at North Toe indicates these veins can be gold bearing. All geochemical sampling results from 2025 remain outstanding.

Robert Cameron, CEO states: "Newmont Lake continues to exceed our expectations for delivering large and meaningful exploration targets. The magnetic and IP surveys along with surface mapping and sampling completed this season at Andrei have defined a large copper-gold porphyry system. We now have a coherent set of coincident geophysical targets in an area with supportive geology and widespread surface copper and gold occurrences. Andrei is our number one target on the Newmont Lake Property, and the results of our work this summer will be used to plan a focused inaugural drill program at Andrei in 2026."