Endurance Reports First 2026 Drill Results at Reliance Gold Project

Executive Summary

• Endurance Gold Corporation announced assay results from the first two 2026 drill holes (DDH26-128 and DDH26-129) at its 100%-owned Reliance Gold Project in British Columbia.
• DDH26-128 returned 7.67 gpt Au over 14.7m, including 11.01 gpt Au over 8.7m, representing a 25m up-dip expansion of the near-surface Eagle Zone and intersecting five additional high-grade veins below the current Inferred MRE.
• DDH26-129 returned 3.07 gpt Au over 12.0m, including 13.75 gpt Au over 1.8m, marking a 60m step-out that confirmed Royal Shear-hosted mineralization within the Eagle Zone.

Key Details

• Current MRE Context: Project hosts an Inferred Mineral Resource Estimate of 19.6 million tonnes at 2.30 gpt Au for 1.45 million ounces contained gold.
• DDH26-128 Intercepts: 7.67 gpt Au and 0.13% Sb over 14.7m, including 11.01 gpt Au and 0.19% Sb over 8.7m from the Eagle Zone (commencing at 75.9m downhole). Also intersected five additional veins below the MRE between 118.1m and 161.0m downhole, ranging from 0.5m to 1.6m in width and assaying 2.57 to 10.10 gpt Au.
• DDH26-129 Intercepts: 3.07 gpt Au and 0.03% Sb over 12.0m, including 13.75 gpt Au and 0.14% Sb over 1.8m (commencing at 98.2m downhole). Represents a 60m offset from DDH26-128 at the Eagle Zone.
• Eagle Zone Progress: Seven holes completed this year (1,899m) at the southern extent, all displaying visual mineralization. Five additional holes are pending assay results, intersecting 11 mineralized structures ranging from 2.1m to 10.5m in drill length.
• Imperial Zone Progress: Two holes completed (1,160m) to test depth expansion. First hole intersected a 5m structure at the Royal Shear contact (43m step-out from DDH24-109's 6.74 gpt Au over 21.8m) and an 8m structure in the footwall interpreted as the Lower Imperial Zone. Second hole achieved a 55m step-out on the Royal Shear contact, intersecting an 8m mineralized structure. Assays pending for both.
• Phase 1 Program Details: Fully funded program commenced May 1 with two diamond drill rigs, targeting a minimum of 8,000m. Objectives include upgrading the near-surface, pit-constrained MRE to Indicated category, expanding the MRE pit shell, and testing for deeper high-grade extensions.
• Phase 2 & Metallurgical Plans: Phase 2 drilling using a reverse-circulation (RC) rig is expected later this summer to evaluate new targets at the Eagle Offset Anomaly. Metallurgical testwork to optimize gold and antimony recovery is currently underway.
• Technical Reporting Standards: All results reported as core length intervals with true composite widths estimated at 80% to 100% of core length. Samples analyzed by ALS Global using four-acid digestion, ICP-MS, FA ICP-AES, and specific over-limit/visible gold methodologies.