Endurance Gold drills 5.2 m of 14.03 g/t Au at Reliance

Executive Summary

• Endurance Gold Corp. released assay results from six additional drill holes in the Crown zone at its 100%-owned Reliance gold project, highlighting significant gold and antimony intersections in both the Lower and Upper Crown targets.
• The Lower Crown zone showed strong continuity along the Royal shear, with hole DDH25-122A returning 14.03 g/t Au over 5.2m and DDH25-125 returning 6.10 g/t Au over 10.0m, confirming the zone remains open for expansion.
• The company provided an operational update, noting the completion of 6,864m of drilling in 2025, the submission of updated 3D models to Ginto Consulting for the inaugural mineral resource estimate (expected by year-end/early next year), and ongoing metallurgical test work.

Key Details

• Lower Crown Drilling (Royal Shear):
  • DDH25-122A: Returned 14.03 g/t gold and 1.46% antimony over 5.2 metres. This represents a 30-metre stepout from Lower Crown hole DDH25-113 (5.63 g/t Au over 3.3 m) and an 85-metre stepout southeast from the Imperial zone.
  • DDH25-125: Returned 6.10 g/t gold and 0.22% Sb over 10.0 metres within the mineralized Royal shear structure, located 50 m up-dip from the Lower Crown discovery hole (7.61 g/t Au and 0.75% Sb over 5.7 m).
  • DDH25-126 & DDH25-127: Targeted the Royal shear up-dip of DDH25-125 but intersected a fault-displaced chert unit instead, explaining the absence of surface expression for the Lower Crown zone.
  • The Lower Crown zone remains open for expansion along strike and to depth.
• Upper Crown Drilling:
  • Tested continuation of the Upper Crown zone along strike from discovery hole DDH24-093 (147.5 g/t Au over 1.0 m).
  • DDH25-123: Returned 10.08 g/t gold over 3.8 m, including 17.38 g/t gold over 1.8 m.
  • DDH25-124: Returned 1.83 g/t gold over 7.3 m, including 5.87 g/t gold over 1.3 m.
  • All three Upper Crown holes were drilled from the same pad, providing a 110-metre strike length. The zone is located ~70 m into the structural footwall below the main Royal shear and remains open in all directions.
• 2025 Drilling Program Statistics:
  • Successfully completed 6,864 m of diamond drilling in 20 drill holes.
  • 13 drill holes intersected greater than 10 gram-metres.
  • Gold assays received for all 2025 holes and incorporated into the updated 3-D geology model.
  • Total Reliance drill hole database now consists of 11,986 samples from 35,127 m of diamond drilling, 6,045 m of RC drilling, and 1,512 m of surface channel samples.
• Project Updates:
  • Mineral Resource Estimate: Ginto Consulting Inc. has been contracted to complete the inaugural estimate. The revised 3-D geology and mineralization model has been delivered; completion is anticipated by year-end or early next year.
  • Metallurgy: Test work is in progress, focusing on flotation to maximize recovery to a high-grade gold (antimony) sulphide concentrate.
  • Target Generation: Over 1,500 soil samples and 150 rock samples collected during the 2025 field season; assays are pending. Prospecting indicates potential for new gold prospects on the Royal shear and parallel trends.

Notable Quotes

• "The 2025 drilling program at the Crown zone represents a significant milestone, demonstrating the potential for continuous mineralization along the 1.5-kilometre Royal shear trend, encompassing both the Imperial and Eagle zones," said Robert T. Boyd, president and chief executive officer. "Over the next few months, we anticipate achieving additional milestones, including the completion of our inaugural mineral resource estimate and verification of recent developing surface discoveries, which are expected to further enhance the district's gold- and antimony-related prospect potential."