Endurance Reports Additional High-Grade from Expanding Crown Zone 8.01 gpt Gold over 10.5 Metres

Executive Summary

• Endurance Gold reported assay results from three additional drill holes (DDH25‑116, DDH25‑115, DDH25‑114) in the Crown Gap of its Reliance Gold Project, all intersecting strong gold mineralization and, in one case, a new antimony‑rich footwall zone.
• The highlight hole DDH25‑116 returned 8.01 g/t Au over 10.5 m (including 15.12 g/t Au over 2.9 m) on a 36‑m step‑out from the previous discovery, confirming continuity of the Royal Shear mineralized trend.
• Additional holes delivered notable grades: DDH25‑115 – 5.46 g/t Au over 2.4 m (including 8.08 g/t Au over 1.1 m) and a 6.60 g/t Au over 2.4 m ultramafic intercept; DDH25‑114 – 1.17 g/t Au over 4.5 m, with an antimony‑rich vein (3.47 g/t Au, 4.4 % Sb over 0.5 m). The results expand the known mineralized envelope and support further drilling in the 150 m undrilled gap.

Key Details

• Hole DDH25‑116 – 8.01 g/t Au over 10.5 m; includes 15.12 g/t Au over 2.9 m from the Royal Shear contact; located 36 m step‑out NW of discovery hole DDH24‑103.
• Hole DDH25‑115 – 5.46 g/t Au over 2.4 m; includes 8.08 g/t Au over 1.1 m intersecting the Royal Shear contact 50 m down‑dip of DDH24‑103. Extended to 500 m depth for deeper structure testing.
• Ultramafic intercept in DDH25‑115 – 6.60 g/t Au over 2.4 m; includes 9.38 g/t Au over 1.6 m within ultramafic rock at 418.7 m depth.
• Hole DDH25‑114 – 1.17 g/t Au over 4.5 m; contains an antimony‑rich vein with 3.47 g/t Au and 4.4 % Sb over 0.5 m. Designed to test the undrilled gap between Lower Crown and Imperial zones.
• Overall program status – 2025 diamond drilling program: 16 holes completed (5,750 m drilled); assay results pending for 7 holes; one hole abandoned before target depth. Additional testing of near‑surface targets up‑dip of DDH24‑103 is ongoing.
• Resource modeling & metallurgical work – Ongoing mineral resource modeling and metallurgical testwork at Blue Coast Research Laboratory.
• Exploration activities – Continued prospecting, geological 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 demonstrating potential for a wider shallow plunging portion of Royal Shear mineralized trend that is continuous between Imperial and the Lower Crown target areas and open to expansion along the plunge trend and at depth,” – Robert T. Boyd, President & CEO, Endurance Gold Corporation.

All assay intervals are reported as core length; true composite widths are estimated at 90‑100 % of core length.