American Rare Earths Limited Unveils Optimized Mineral Processing, Test Mining & Demo Plant Plans to Unlock Wyoming’s Rare Earth Potential

Friday, July 18, 2025
at
9:46 am
Article header image

American Rare Earths Limited is advancing its Wyoming project with extensive testing to optimize rare earth processing. They've ordered key equipment for a demo plant and started test mining, paving the way for a robust pre-feasibility study that could unlock significant value and attract growing investor interest.

American Rare Earths Limited has provided an update on its ongoing work at the Cowboy State Mine in Wyoming as part of the Halleck Creek Rare Earths Project. The company is currently engaged in a series of parallel mineral processing optimization tests aimed at enhancing the recovery of magnetic rare earths. These tests include several comminution methods—using a Vertical Roller Mill, High Pressure Grinding Rolls with Air Classifier, and a HPGR Tower Mill—to reduce the fines that can diminish ore concentration and reduce reagent usage during leaching. Concurrently, the company is fine-tuning its beneficiation circuit, exploring both conventional equipment like Induced Roll Magnetic Separators and alternative primary separation techniques such as the Reflux Classifier Concentrator and dry-magnetic processes with Magnetic and Rare Earth Drums. The project update also highlights significant progress on the demonstration plant front. Long-lead time equipment, particularly full-scale IRMS units from Mineral Technologies, has already been ordered with delivery expected in the first half of 2026. This equipment forms a critical component in the planned demonstration facility, which will use bulk samples extracted via a substantial test mining program. The plan involves mobilizing extraction equipment to collect approximately 3,200 tonnes of feedstock, which will not only support further optimization tests but will also serve to validate the processing flow-sheet for future scale-up. The technical and economic implications of these developments are considerable. The additional work is set to extend the Pre-Feasibility Study timeline, but its ultimate aim is to produce a robust blueprint that will underpin future definitive studies and demonstrate the project’s viability to potential investors, partners, and creditors. This comprehensive approach to both comminution and beneficiation, along with well-planned feedstock extraction and subsequent demonstration activities, is designed to unlock the significant rare earth potential at Halleck Creek. From a sentiment standpoint, the news presents clear positive indicators. On the bullish side, the methodical progression towards a robust processing flow-sheet, combined with the proactive ordering of critical equipment and large-scale test mining, provides assurance in the project’s long-term viability. This measured and well-supported approach may boost investor confidence in the technical and economic feasibility of the project. Bearish sentiment might arise from the extended timeline for the Pre-Feasibility Study and the inherent risks associated with scaling up from laboratory to field conditions. However, the clear roadmap and extensive testing suggest that the company is effectively managing these challenges, leaning the overall narrative toward a cautiously optimistic outlook for future development.

Recent Articles