US-based Phoenix Tailings is ramping up rare earth metal production using a $500 million Pentagon loan to reduce dependence on Chinese supply chains. The initiative focuses on extracting essential minerals from mining waste and recycled materials, crucial for the defense and aerospace sectors. As geopolitical tensions rise, American defense contractors are actively diversifying their sourcing to secure vital components like samarium and neodymium.
The United States is accelerating efforts to build a domestic supply chain for critical minerals, which are essential for producing advanced defense equipment such as aircraft and precision-guided missiles. This strategic shift is largely driven by China's recent move to tighten restrictions on the export of these vital components, creating a supply bottleneck for Western defense contractors. Because developing new mines is a time-intensive process that can take many years, the industry is currently prioritizing the refining of materials from existing mining waste and recycled products to meet urgent demand.
Scaling Domestic Refining Capabilities
Phoenix Tailings, a specialized processor based in New Hampshire, has emerged as a key player in this effort. Supported by a $500 million loan from the Pentagon, the company is scaling up its facilities to process secondary materials like mining tailings and discarded magnets. Its process uses electrolysis to separate critical elements from waste powder, a method designed to bypass the traditional and slower mining route. The company is working to expand its output of samarium, a key metal for military-grade magnets. Currently producing about 200 kilograms of samarium-cobalt metal annually, the firm aims to boost this capacity to five tonnes within the next three months, with an ambitious long-term target of 120 tonnes by 2028.
Defense Industry Supply Chain Shifts
Beyond Phoenix Tailings, other industrial players are re-evaluating their supply lines. Arnold Magnetic Technologies, based in New York, is moving away from Chinese-sourced samarium for its missile components. The company has shifted its procurement strategy to source materials from reclaimed mines in France, where the chemical firm Solvay has restarted rare earth separation operations. These moves reflect a broader global trend where defense and technology manufacturers are prioritizing traceability and regional security over the previously lower costs of Chinese-dominated supply chains.
Strategic Challenges for Investors
While this push toward self-sufficiency is a clear strategic priority for the US government, the industry faces significant execution risks. The construction of factories capable of advanced separation and metallization—the processes required to turn raw minerals into usable magnets—remains a bottleneck. For instance, the new facility planned by Phoenix Tailings is expected to take 14 to 18 months to complete. Investors tracking this sector should monitor the progress of these infrastructure timelines and the ability of domestic refiners to scale production profitably. The ultimate success of these companies will depend on their ability to maintain competitive costs while navigating the technical complexities of mineral separation at scale, especially as global demand for permanent magnets continues to grow across the automotive and renewable energy sectors alongside defense.