Maiden Ore Reserve positions Koppamurra for development

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Stock Australian Rare EARTHS Ltd (AR3.ASX)
Release Time 25 Jun 2026, 9:46 a.m.
Price Sensitive Yes
 Australian Rare EARTHS Ltd Announces Maiden Ore Reserve
Key Points
  • Maiden Ore Reserve of 26 Mt at 920ppm TREO established
  • Grade is 22% higher than global average, highlighting high value
  • 48% of rare earth basket is high-value heavy and magnet rare earths
  • Updated Mineral Resource of 243 Mt at 751 ppm TREO
  • Significant potential for future resource growth
Full Summary

Australian Rare EARTHS Ltd (ASX: AR3) has announced a significant milestone with the establishment of a maiden Ore Reserve for its Koppamurra Project. The 26 Mt at 920 ppm TREO Probable Ore Reserve, converted from Measured and Indicated Mineral Resources, marks a critical step towards development. The Ore Reserve grade is approximately 22% higher than the global average, emphasizing the project's high-value potential. The rare earth basket is heavily weighted towards heavy and magnet rare earths, critical for EVs, wind turbines, and defense applications. Additionally, the updated Mineral Resource estimate stands at 243 Mt at 751 ppm TREO, reflecting improved geological modeling and expanded reporting of individual rare earth elements. The announcement also highlights a substantial Exploration Target, indicating significant potential for future resource growth.