Mark Wall, CEO of American Rare Earths, joins Steve Darling of Proactive’s OTC studio in New York to discuss the strategic importance and long-term potential of the Halleck Creek rare earths project in Wyoming, positioning it as a cornerstone of U.S. domestic supply.
Wall described the scale of the project as extraordinary, noting: “2.5 billion tonnes of ore, Grade B, which is a lot.” He compared Halleck Creek to large, long-lived copper porphyry systems, highlighting its low strip ratio of 0.16 and near-surface mineralization, making it “very, very simple to mine.” He stressed that the asset has the potential to be a “strategic backbone of U.S. domestic rare earth supply for many, many years.”
Current estimates suggest a supply of about 100 years, although Wall noted that this is a conservative figure. At the lower cut-off grade of 1,000 ppm, the resource extends over 400 years and the ore body remains open both at depth and laterally.
Looking ahead to 2026, the company plans to achieve several key milestones, including completion of a pre-feasibility study (PFS), initiation of a feasibility study, submission of state permits and continued engagement in Washington, D.C. to enhance the project’s strategic significance.
Halleck Creek contains heavy and light rare earths, including terbium, dysprosium and samarium, elements critical to defense and advanced technology applications. Combining Wyoming’s supportive infrastructure, permitting framework and collaboration with the University of Wyoming on potential industrial uses of engineered sand by-products, Wall positions Halleck Creek as a major domestic rare earths opportunity that can strengthen the independence of the U.S. supply chain.
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