American Rare Earths Limited

American Rare Earths Limited is an Australian-based mineral exploration company focused on the discovery and development of rare earth elements in the United States. The company's core mission is to establish a secure, domestic supply chain for critical rare earth minerals, essential for renewable energy technologies, electric vehicles, and national security, thereby reducing reliance on foreign sources. While headquartered in Sydney, New South Wales, Australia, the company maintains a significant operational presence and a US headquarters in Lakewood, Colorado, reflecting its strategic focus on American rare earth resources.

The company's primary assets include the Halleck Creek Project in Wyoming, identified as one of the largest rare earth deposits in the US, and the La Paz Rare Earth Project in Arizona. These projects are being developed to extract key magnet rare earth elements such as neodymium, praseodymium, dysprosium, and terbium, as well as scandium. American Rare Earths aims to supply these critical materials to various market segments, including advanced manufacturing, defense, and clean energy industries.

Under the leadership of CEO Mark Wall, who assumed the consolidated President and CEO roles in early 2026, American Rare Earths is accelerating its pilot plant program at Halleck Creek to produce pre-production rare earth oxide. The company is also advancing a pre-feasibility study for the project and exploring a potential U.S. stock exchange listing. These initiatives underscore its commitment to transitioning from an explorer to a future U.S. producer, positioning Halleck Creek to potentially meet U.S. rare earth demand for a century.

Latest updates

American Rare Earths Bolsters Wyoming Team Amid Halleck Creek Development

Event summary

  • American Rare Earths appointed Brook Brockman as Director of Public and Government Affairs for its Wyoming subsidiary, Wyoming Rare.
  • Taylor Cable joined as Director, Projects & Engineering, focused on advancing the Halleck Creek rare earths project.
  • Both appointments are intended to strengthen local relationships and project execution capabilities for the Halleck Creek project.
  • Halleck Creek hosts the largest known deposit of total contained rare earth oxides in the United States.

The big picture

American Rare Earths' strategic focus on the Halleck Creek deposit underscores the broader push to onshore critical mineral supply chains, particularly rare earth elements, to reduce reliance on China. The appointments signal a deliberate effort to balance resource development with community engagement and disciplined project management, recognizing the challenges inherent in bringing a large-scale mining project to fruition in a politically sensitive environment. The Halleck Creek project represents a significant opportunity to bolster US domestic rare earth production, but faces the typical risks associated with large-scale mining and processing operations.

What we're watching

Community Relations
The success of Halleck Creek hinges on maintaining positive relationships with local communities and landowners, and Brockman's experience will be crucial in navigating these dynamics. Any significant pushback or regulatory hurdles will likely originate at the local level.
Project Execution
Cable’s focus on de-risking the transition from studies to construction is vital; rare earth projects are notorious for cost overruns and delays. The ability to translate technical studies into a viable, on-time, and on-budget project will be a key indicator of success.
Regulatory Landscape
The permitting and regulatory path for Halleck Creek will be heavily influenced by Wyoming’s priorities, and changes in state or federal policy could significantly impact the project’s timeline and cost. Continued alignment with state values will be essential for securing approvals.
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