US Turns to Mining Waste in Push to Break China’s Rare-Earth Grip

The United States is stepping up efforts to recover rare-earth elements from mining waste and discarded materials as it seeks to reduce its dependence on China for minerals vital to advanced technology and modern weapons.

Rare-earth elements are essential components in powerful magnets used in fighter aircraft, missiles, drones, electric vehicles and a range of electronic equipment. China dominates much of the global supply chain, including the processing of several critical rare-earth minerals, giving Beijing significant influence over industries that rely on these materials.

To counter that dependence, US companies and government agencies are increasingly looking at unconventional sources of supply. Instead of relying solely on newly mined ore, researchers and manufacturers are examining piles of mining waste, old industrial material and discarded electronic equipment for minerals that can be recovered and processed.

Mining waste, often regarded as an environmental liability, could become an important source of rare-earth materials. Large quantities of potentially valuable minerals remain trapped in waste generated during decades of mining. Recovering these elements could provide the US with additional supplies without requiring the development of entirely new mines.

The strategy also includes recovering rare-earth materials from used products such as old hard drives and magnets. Recycling these materials could create a domestic supply stream while reducing the need for fresh mining.

The initiative has gained greater urgency as Washington seeks to strengthen its defence-industrial base and protect supply chains from geopolitical disruptions. Rare-earth magnets are particularly important for precision-guided weapons, aircraft and other military systems.

The US push comes amid heightened competition between Washington and Beijing over technology, trade and strategic resources. China’s influence over rare-earth processing has emerged as a major concern for US policymakers, particularly because alternative processing capacity remains limited. Experts say developing domestic recycling and processing capabilities will take time and substantial investment. However, turning mining waste and discarded equipment into sources of critical minerals could help diversify supplies and strengthen US economic and national-security resilience.