Enduro Metals expands October Dome gold-copper target

Executive Summary

• Enduro Metals Corp. has identified new gold skarn mineralization in bedrock at its 100%-owned October Dome project in British Columbia, expanding the known gold-copper target to a 5.5 km trend.
• The discovery extends a previously identified skarn horizon 500 meters to the southeast, based on 2025 sampling programs that included rock and soil geochemistry.
• The company is evaluating follow-up exploration, including additional surface work and drill targeting, noting that the area has seen limited historical drilling despite its significant scale.

Key Details

• Project Location: October Dome project, central British Columbia, near Likely; located 10 km north of Imperial Metals' Mount Polley mine and 7 km southeast of the past-producing QR gold mine.
• New Discovery: Strongly mineralized gold skarn identified in bedrock for the first time, extending a large gold-copper target to 5.5 kilometres.
• Bedrock Sampling:
  • Float and bedrock samples returned values ranging from background to 0.54 g/t gold over a 600-metre trend.
  • One-third of rock samples returned >100 ppb gold; 30% exceeded 400 ppm copper.
  • Samples contained visible chalcopyrite, pyrite, magnetite, and epidote.
• Soil Sampling:
  • Defined a 450-metre gold anomaly ranging from 74 ppb to 912 ppb gold.
  • Copper values up to 0.13% were recorded in soil samples.
• Historical Context:
  • In 2013, drill hole OD-6 intersected 9 metres of massive magnetite skarn grading 0.71 g/t gold (estimated true thickness) at a sediment/basalt contact.
  • The 2025 work identified this same skarn horizon in bedrock 500 metres to the southeast of the original projection.
  • Historical drilling by previous operators returned 69.5 metres grading 0.183 g/t gold and 0.1% copper (unverified).
• Acquisition: The October Dome property was acquired in June 2025 through the merger with Commander Resources.
• Next Steps: The company is evaluating follow-up exploration, including additional surface work and drill targeting along the expanded skarn corridor.

Notable Quotes

• "Work at October Dome in 2025, for the first time, identified strongly mineralized gold skarn in bedrock. This new discovery falls within a large 5.5 km long gold-copper anomaly that has only seen limited historical drilling. With only one historical drill hole intersecting similar skarn mineralization, we believe the scale and gold potential of this system is only beginning to be understood." — Rob Cameron, Chief Executive Officer