Endurance Reports Four Additional Holes with Highlight Intersections of 5.13 gpt Gold over 19.8 Metres and 5.40 gpt Gold over 4.8 Metres

Executive Summary

• Endurance Gold reported assay results from four drill holes (three in the Crown “Gap” Zone and one in the Imperial Zone) intersecting gold‑bearing mineralization along the Royal Shear contact.
• Highest-grade intercepts include 10.15 g/t Au over 1.5 m (DDH25-121) and 12.0 g/t Au over 1.0 m within a newly tested ultramafic‑chert footwall contact.
• The 2025 drilling program now totals 20 holes (6,438 m); 12 of 18 Crown Gap holes have returned significant gold–antimony mineralization, supporting continuity along the 1.5 km Royal Shear trend.

Key Details

• DDH25-117: 5.13 g/t Au & 0.75% Sb over 19.8 m (including 7.70 g/t Au & 1.07% Sb over 9.2 m) at 164.8 m depth; HQ core collected for metallurgical testing.
• DDH25-119: 1.89 g/t Au over 0.6 m intersecting a feldspar dyke at 71.9 m depth within the Royal Shear contact.
• DDH25-120: 1.81 g/t Au over 7.0 m starting at 55.7 m depth, first near‑surface mineralization from the Crown Zone (50 m up‑dip of DDH25‑119).
• DDH25-121 – Gold Vein: 10.15 g/t Au over 1.5 m from a quartz‑carbonate vein at the Royal Shear contact; 85 m step‑out from prior hole DDH24‑103 (7.61 g/t Au over 5.7 m).
• DDH25-121 – Ultramafic‑Chert Contact: 5.40 g/t Au over 4.8 m (including 12.0 g/t Au over 1.0 m); 60 m step‑out from DDH25‑115 (6.60 g/t Au over 2.4 m). Potential new deeper stacked zone related to Lower Imperial structure.
• Overall Program: 20 holes completed, 6,438 m drilled; assay results pending for five additional holes. Current drilling testing a 70 m step‑out from discovery hole DDH24‑103 and deeper footwall targets.
• Resource & Metallurgy Work: Ongoing mineral resource modeling and metallurgical test work at Blue Coast Research Laboratory.
• Exploration Activities: Continued prospecting, mapping, and soil/rock sampling (1,500+ soil samples, 150 rock samples) on eastern Olympic structures and southeast extension of the Royal Shear trend.

Notable Quotes

“Testing of the Crown Gap is now delivering a high success rate of encouraging drill intersections… The association of ultramafic‑associated gold mineralization makes the Crown Area unique along this trend.” – Robert T. Boyd, President & CEO