US Defense Industry Races to Break Reliance on Chinese Rare Earths

The urgency stems from a narrowing window: as the US military depletes its stockpiles of Tomahawk missiles and THAAD interceptors, defense contractors face a federal mandate to strip Chinese-sourced materials from their supply chains. This shift is complicated by the fact that most new domestic mining projects remain years from production. In the interim, companies are turning to "tailings"—the discarded powder left behind by traditional mining—to recover the rare-earth elements vital for high-performance magnets used in fighter jets and drones.

Phoenix Tailings, based in Massachusetts, is currently scaling its capacity with a $500 million Pentagon loan to build a specialized facility. While their current output is measured in kilograms, the goal is to reach a 120-ton annual capacity by 2028. Meanwhile, other firms are looking to historical industrial sites, such as a former Solvay processing plant in La Rochelle, France, to provide non-Chinese alternatives for samarium and dysprosium. Despite the higher costs associated with Western production, executives at companies like Arnold Magnetic Technologies argue that these materials represent a small fraction of a weapon system's total value, making supply security a higher priority than price.

However, the path to autonomy is fraught with logistical hurdles. Industry analysts warn that meeting the strict 2027 deadlines for domestic sourcing remains an ambitious target. With the Pentagon curtailing waiver authority for contractors who cannot find non-Chinese sources, the pressure is mounting on a nascent domestic supply chain to prove it can scale rapidly enough to maintain US military readiness.