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 (AMRRY) has announced significant progress in its Halleck Creek Rare Earths Project's metallurgical testing program. The company achieved notable leach recoveries for critical rare earth elements, including 85% for Praseodymium and 84% for Neodymium at optimal conditions.
The testing, conducted at SGS's laboratory in Lakefield, included 25 leach tests exploring various parameters. A key breakthrough was achieved with significantly lower impurity elements, with iron and aluminum concentrations 5.0x and 2.9x lower respectively compared to previous Scoping Study tests. The company has selected Atmospheric Tank Leach as the preferred method, noting its superior energy efficiency and cost-effectiveness.
These results represent a crucial milestone in the technical de-risking of the Cowboy State Mine Pre-Feasibility Study, establishing optimal leach conditions for producing rare earth magnet oxides.
American Rare Earths (AMRRY) has achieved a significant milestone in its permitting process for the Cowboy State Mine project by successfully installing 10 groundwater monitoring wells. The wells, part of the Halleck Creek Rare Earths Project in Wyoming, will collect baseline environmental and hydrological data over a 12-month period to support the state mining permit application with the Wyoming Department of Environmental Quality (WDEQ).
The project, located on State-managed land, benefits from a streamlined permitting process compared to Federal lands. The company plans to conduct 24-hour pump testing to measure water flow and assess mine dewatering requirements. The Pre-Feasibility Study (PFS) remains on track for completion in late 2025, with first production targeted for 2029. The project is supported by a substantial 2.63 billion tonne JORC Resource, positioning it as one of the largest rare earth projects in the United States.
American Rare Earths (AMRRY) has reported promising results from its channel sampling program at the Cowboy State Mine, part of the Halleck Creek Rare Earths Project in Wyoming. The program revealed Total Rare Earth Oxide (TREO) grades up to 13,651 ppm (1.37%), with 15 of 106 samples exceeding 4,500 ppm TREO.
Key findings include magnet rare earth oxides (MREO) averaging 1,023 ppm (28% of total TREO) and heavy rare earth oxides (HREO) averaging 464 ppm (13% of TREO). The southern portion of Red Mountain showed the highest-grade material. The company's Pre-Feasibility Study remains on track for completion in late 2025, with potential first production by 2029.
Located on state lands in Wyoming, the project benefits from streamlined development pathways and could become a significant domestic source of critical rare earth materials, particularly terbium and dysprosium, which are crucial for high-temperature magnet performance and currently face export restrictions from China.
American Rare Earths (ARRNF) has announced results from its Updated Halleck Creek Scoping Study, revealing strong economic potential for its rare earths project in Wyoming. The study presents two development scenarios:
The 3 Mtpa base case shows:
- NPV10% of US$558M with 24% IRR
- CAPEX of US$456M with 2.7-year payback
- Annual production of 4,169 metric tons TREO, including 1,833 tons NdPr oxide
The 6 Mtpa case demonstrates:
- NPV10% of US$1.17B with 28.4% IRR
- CAPEX of US$737M with 1.8-year payback
- Annual production of 7,661 metric tons TREO, including 3,344 tons NdPr oxide
The project benefits from state land tenure for accelerated permitting and covers only 16% of the total project area, with significant expansion potential. First production could begin by 2029.
American Rare Earths (ARRNF) has achieved a significant metallurgical milestone at its Halleck Creek Rare Earths Project in Wyoming. Large-scale testing has successfully demonstrated a 10:1 upgrade in rare earth concentration, increasing from 3,438 ppm (0.34%) TREO to 37,200 ppm (3.72%) TREO using conventional, low-cost methods.
The test work, conducted with Mineral Technologies on a 1.9-tonne sample, utilized MG12 Spirals and Induced Roll Magnetic Separation (IRMS) technology. The process effectively removes 93.5% of non-rare earth material early in processing, meaning only 6.5% of mined ore requires further refining, potentially reducing operating costs significantly.
The initial TREO recovery rate was 62%, below the 78% outlined in the Scoping Study. However, optimization work is ongoing to enhance recoveries while maintaining the 10X upgrade factor. These results validate key assumptions in the Scoping Study and will support the upcoming Pre-Feasibility Study (PFS).
American Rare Earths (ARRNF) announced a significant update to its Halleck Creek Rare Earth Project in Wyoming. The total mineral resource estimate increased by 12.2% to 2.63 billion tonnes at 3,926 ppm Total Rare Earth Oxides (TREO). The Red Mountain Area saw a 29.7% growth in resources to 1.24 billion tonnes, with an 8.3% grade increase to 3,252 ppm TREO.
The Cowboy State Mine, representing the first phase of development, expanded by 29.4% to 543 million tonnes, with a 2.7% increase in TREO grade to 3,438 ppm. The deposit remains open at depth and along strike, with the current estimate covering only 16% of the project area. The company plans to release an updated Scoping Study in February 2025, followed by a Pre-Feasibility Study later in the year.
American Rare Earths (ARRNF) has been recognized in the 2025 OTCQX® Best 50, ranking as the third most traded company among top performers on the OTCQX Best Market in 2024. The ranking is based on one-year total return and average daily dollar volume growth during the previous calendar year.
The company's Halleck Creek Project, containing 2.34 billion tonnes of TREO under JORC standards, is positioned as a key component of the U.S. rare earths supply chain. The project aims to reduce American dependence on foreign imports while supporting clean energy and defense technologies.
The OTCQX Best Market recognition highlights companies meeting high financial standards, following best practice corporate governance, and maintaining securities law compliance.
American Rare Earths (ARRNF) has announced that its subsidiary Wyoming Rare (USA) has been granted a License to Explore by Dozing at the Halleck Creek Rare Earths Project in Wyoming. The license enables test mining, trenching, and exploratory excavation, including bulk material sample collection at the Cowboy State Mine project area.
The bulk sampling authorization represents a important step for the company, as it will provide feedstock for future pilot plant testing at their recently acquired Laramie facility. This development will enable ARR to refine processing techniques and optimize project design, advancing toward commercial development.
CEO Chris Gibbs emphasized that this approval demonstrates their strong relationship with Wyoming state authorities and marks a significant step in developing the project while maintaining high environmental and community standards. The company will continue pilot plant testing, metallurgical analysis, and process optimization as part of their development strategy.
American Rare Earths (ARRNF) has announced that its subsidiary, Wyoming Rare (USA), has secured a facility at the Western Research Institute in Laramie, Wyoming. This development follows a recent $7.1 million grant from the State of Wyoming for rare earth processing initiatives.
The facility will serve multiple purposes, including housing drill core and assay samples, and accommodating the construction of a pilot plant for processing capabilities. The Western Research Institute, a not-for-profit research organization, specializes in advanced energy systems, environmental technologies, and materials research.
This strategic partnership aims to advance the Halleck Creek Rare Earths Project and strengthen Wyoming's position in critical minerals development while supporting the company's mission to onshore critical mineral supply chains for the USA.