StockWatch
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Metal Mining
Business UpdateOct 8, 2026, 08:36 AM

IMC Rare Earths Discovers New High-Grade Terbium Zone at Itarantim Project

AI Summary

IMC Rare Earths Ltd announced a significant new discovery of a high-grade, terbium-rich ionic clay zone at Block H of its Itarantim rare earth project in Brazil. This new zone, located outside the company's existing 1.1 billion tonne Mineral Resource, begins just two meters below the surface and shows promising grades, including 5,695 ppm TREO and 38 ppm Tb4O7 over seven meters. Initial metallurgical tests indicate strong terbium leachability. The company also highlighted ongoing work at Block D, which shows continuous mineralization. IMC plans further drilling at both blocks to define the scale and continuity of these discoveries, aiming for potential resource growth.

Key Highlights

  • IMC Rare Earths discovers new high-grade, near-surface terbium zone at Block H, Itarantim project.
  • Block H mineralization starts just two meters below surface, grading 5,695 ppm TREO, 38 ppm Tb4O7 over seven meters.
  • Includes a higher-grade interval of three meters at 7,841 ppm TREO, 52 ppm Tb4O7.
  • Initial ammonium sulphate leach testing recovered 64%-83% of terbium from the upper three meters.
  • Block H is outside the existing 1.1 billion tonne Mineral Resource, offering potential for resource growth.
  • Block D shows thick, continuous mineralization, with hole AD-00403 intersecting 20 meters grading 24 ppm Tb4O7.
  • Next steps include infill and step-out drilling at Block H and extension drilling at Block D.