Welcome to our dedicated page for American Rare Earths news (Ticker: ARRNF), a resource for investors and traders seeking the latest updates and insights on American Rare Earths stock.
American Rare Earths Limited (ARRNF) generates frequent news as it advances the Halleck Creek Rare Earths Project in Wyoming and positions itself within the U.S. critical minerals landscape. Company announcements highlight technical milestones, resource updates, permitting progress and corporate developments that are central to understanding its trajectory as a rare earths developer.
News coverage often focuses on mineral processing breakthroughs, such as impurity removal neutralization tests on allanite-based ore, the selection of magnesium oxide as the preferred neutralizing reagent, and the successful production of mixed rare earth oxalate and mixed rare earth oxide (MREO) from Halleck Creek ore. These updates provide insight into how the company is de-risking its hydrometallurgical flowsheet and moving toward a robust Pre-Feasibility Study.
Investors can also follow resource and exploration news, including updated Mineral Resource Estimates for the Cowboy State Mine area, channel sampling results, and new drilling permits at both the Cowboy State Mine and Bluegrass exploration areas. These releases outline how geological data and modeling are refining the scale and classification of resources within Halleck Creek.
Corporate and strategic news includes board and management changes, expanded relationships with engineering partners such as Tetra Tech, and initiatives to explore U.S. government funding opportunities for critical minerals projects. Quarterly activity reports and AGM addresses summarize progress in test mining, optimization work, permitting and funding, and frame Halleck Creek’s role in the broader U.S. mine-to-magnet strategy.
By tracking ARRNF news, readers can monitor how American Rare Earths is progressing from exploration and test work toward potential development, and how its technical and regulatory milestones may influence the long-term outlook for the Halleck Creek Project.
American Rare Earths (OTC:AMRRY) CEO Mark Wall outlines progress at the Halleck Creek rare earths project and strategic priorities for 2026. Key items: successful production of mixed rare earth oxalate and oxide from Halleck Creek material, target completion of a Pre‑Feasibility Study in 2026, and planned mining permit submission in 2026.
The company highlights Wyoming jurisdictional strength (Fraser Institute July 2025 ranking #4) and is evaluating U.S. listing and funding pathways to advance scale-up, offtake discussions, and stakeholder engagement.
American Rare Earths (ADR: AMRRY) and its subsidiary Wyoming Rare (USA) Inc. partnered with the University of Wyoming School of Energy Resources to receive a STAR Project award under UW's NSF-funded ART program on Jan 22, 2026.
The award will fund milestone-driven research to assess tailings and byproducts from the Halleck Creek rare earths project, producing a database of material properties, computational evaluations of end-uses, and small-scale lab validation to assess technical viability and potential economic impact.
American Rare Earths (ADR: AMRRY) commented on a U.S. trade proclamation issued Jan 14, 2026 under Section 232 to adjust imports of processed critical minerals and support domestic processing capacity. The proclamation targets reduced reliance on foreign rare earth processing and seeks negotiated trade measures plus increased U.S. production to strengthen defense and advanced manufacturing supply chains.
American Rare Earths highlights its Dec 2025 technical milestone producing a mixed rare earth oxide (MREO) from the Halleck Creek ore and cites a multi‑generational light and heavy rare earths resource as relevant to U.S. supply‑chain resilience.
American Rare Earths (ADR: AMRRY) produced a mixed rare earth oxide (MREO) from Halleck Creek ore using the updated preliminary PFS mineral processing flowsheet on Dec 16, 2025. SGS Lakefield precipitated a mixed rare earth oxalate and calcined it at 1,000°C to form MREO, converting Ce3+ to Ce4+ to aid downstream solvent extraction. Bench results show ~97% REE recovery and ~98% magnet-REE recovery at 110% stoichiometry, and uranium in PLS fell from 1.27 ppm to 0.04 ppm (≈97%) with ion exchange; combined neutralization and ion exchange removed ≈99% uranium. Solvent-extraction simulation and further process optimization are underway for the upcoming PFS.
American Rare Earths (OTCQX:AMRRY) announced the appointment of Mark Wall as CEO effective January 5, 2026, to lead its transition from explorer to U.S. rare earths producer. Key operational milestones cited include an upgraded mineral resource estimate for Halleck Creek, impurity-removal testwork breakthroughs in the processing flowsheet, an expanded relationship with Tetra Tech, and advancement of a prefeasibility study plus plans for a demonstration plant. Management also said it is evaluating a potential U.S. listing and pursuing U.S. government funding pathways to support project financing and permitting.
The Board highlighted Mr. Wall’s 30+ years of mining experience and said leadership will focus on study completion, demonstration plant delivery, funding pathways, and preparing for a potential U.S. listing.
American Rare Earths (ADR: AMRRY) on Nov 20, 2025 expanded its relationship with Tetra Tech (NASDAQ: TTEK) to include exploring and applying for U.S. Government funding for the Company's Flagship Halleck Creek project.
Tetra Tech, a long‑time technical partner since 2023, will continue mineral processing testing and engineering while advising on strategic engagement with federal agencies to pursue funding opportunities intended to accelerate project development and secure domestic supply of magnet metals.
The company cited the Federal Government mandate to build critical minerals supply chains and described Halleck Creek as a potential solution to diversify U.S. rare earth upstream supply amid a single producing REE mine domestically.
American Rare Earths (ADR: AMRRY) updated the Cowboy State Mine (CSM) mineral resource estimate to 547.5 million tonnes at a 1,000ppm TREO cut-off after incorporating 102 channel samples and geological re-modelling.
Key outcomes: 63.9 million tonnes were reclassified from inferred to indicated; mapping added ~4.5 million tonnes; a standout channel sample returned 13,816 ppm TREO. ARR secured permits for 27 drill holes at CSM and 29 holes at Bluegrass to support in-fill and exploration drilling ahead of technical studies beyond the pre-feasibility study.
American Rare Earths (ASX:AMRRY) presented its 2025 AGM Chairman's Address outlining progress at the Halleck Creek Rare Earths Project and next steps for FY2026. Key disclosed milestones include a JORC resource of 2.63 billion tonnes at 3,292 ppm TREO, successful processing advances including atmospheric tank leaching and impurity removal using magnesium oxide, and completion of test mining of 3,080 tonnes at Cowboy State Mine in Sept 2025. Corporate funding moves comprised a A$15m placement at A$0.32, A$5.784m from option exercises, A$1m promissory note repayment, and a US$456m non-binding letter of interest for project finance. A PFS is targeted for 2026 and a beneficiation demonstration plant is planned.
American Rare Earths (ADR: AMRRY) released preliminary updated mineral processing flowsheet and initial beneficiation optimization results for the Halleck Creek rare earths project on Nov 10, 2025. Preliminary Reflux Classifier Concentrator (RCC) tests on coarse and fine fractions produced a 14.0% mass yield, 78.4% TREO recovery and a 5.66x enrichment. ARR reports the RCC yield is ~11 percentage points lower than spirals (a 44% mass-yield reduction) and a 126% higher enrichment factor versus spirals. Bulk RCC testing using comminution-optimised feed and further oxalate/oxide work are planned as gating items before the PFS datasets are finalised.
American Rare Earths (ADR: AMRRY) announced board changes effective October 28, 2025: Jason Beckton was appointed as Non-Executive Director and Hugh Keller resigned as Non-Executive Director.
Mr. Beckton is a professional geologist with more than 30 years’ experience, a BSc (Hons) and Master of Economic Geology, and recent rare-earths work in Finland developing carbonatite-hosted mineralization. His background includes roles at Pancontinental, Goldfields, Gympie Gold, Palmarejo (project manager) and leading the team for the 2007 commercial discovery of Caspiche. The Board said Beckton’s technical expertise will support advancement of the Halleck Creek Project toward demonstration and pre-feasibility stages.
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