Latest American Rare Earths (ASX:ARR) News

Small-cap shares delivered the week’s biggest moves, led by Mamba’s exploration funding and Cettire’s rebound. Clinical failures, cash shortages and delayed projects kept the broader market cautious.

Small-cap materials shares produced wide gains and losses as fresh discoveries competed with funding warnings and delayed mine starts.
Rare earths, lithium, gold and copper projects added scale, but approvals, cash and construction remain the key tests.

American Rare Earths has expanded the proposed Cowboy State Mine in Wyoming to a 4.5 million tonne per year operation with a 26-year mine plan and an estimated after-tax NPV of US$1.07 billion. The stronger study case comes with higher capital, lower recoveries and no Ore Reserves, leaving metallurgy, permitting and funding as the next tests.

American Rare Earths has reported broad, near-surface rare earth mineralisation from the first six holes of its 2026 feasibility drilling program in Wyoming. The results are encouraging for geological continuity, but they cover only part of the program and do not yet represent a new resource estimate.

American Rare Earths has partnered with Novex to tackle the critical oxide-to-metal bottleneck in the US rare earth supply chain, aiming to establish a fully domestic mine-to-magnet value chain from its Halleck Creek Project.

American Rare Earths has ramped up feasibility drilling and pilot plant development at its Halleck Creek Rare Earths Project, while bolstering leadership and progressing preparations for a NASDAQ listing.

Speculative resources names drove the biggest moves this week, with Patriot Resources, Brazilian Critical Minerals and Rent.com.au leading the gainers. At the other end, Qoria, SQX Resources and 4DMedical fell hard as capital raisings, weak follow-through and post-gap selling hit sentiment.

American Rare Earths is fast-tracking its Wyoming Halleck Creek rare earths project, defining a pilot plant pathway, advancing oxide to metal studies, and targeting a NASDAQ listing by year-end 2026.

Critical minerals and gold explorers drove the biggest moves, with OD6 Metals, Jindalee Lithium and Resolution Minerals leading the weekly board. Investors chased drill hits, fresh funding and deal news, while stocks that reopened after trading halts split between sustained buying and quick give-backs.

American Rare Earths has outlined a three-stage pilot plant program combining Wyoming-based mineral processing with downstream refining in Canada, aiming to accelerate pre-production rare earth oxide output from its Halleck Creek Project.

American Rare Earths has successfully produced Mixed Rare Earths Oxide from its Halleck Creek ore, marking a key technical milestone. The company also updated its resource estimate and strengthened leadership as it advances towards becoming a major U.S. rare earths supplier.

American Rare Earths has successfully produced mixed rare earth oxides from Halleck Creek ore, marking a pivotal technical breakthrough in its mineral processing program. This achievement advances the project closer to commercial viability amid growing demand for critical minerals.