Rare Earth Mineral Recycling: Building a Secondary Supply Chain
Rare earth elements—neodymium, praseodymium, dysprosium, and terbium—are critical inputs for permanent magnets powering EVs, wind turbines, and defense systems. With primary supply concentrated in China (roughly 60% of mining and over 85% of processing), recycling has emerged as a strategic imperative for manufacturers seeking supply chain resilience.
Market Landscape
The global rare earth recycling market was valued at approximately USD 550 million in 2024 and is projected to exceed USD 1 billion by 2033, growing at a CAGR of around 7%. Growth is driven by tightening export controls, ESG mandates, and the sheer volume of end-of-life magnets entering the waste stream from hard disk drives, consumer electronics, and early-generation EV motors.
Key Recycling Technologies
- Magnet-to-Magnet
- Companies like Noveon Magnetics use powder metallurgy and sintering to convert scrap NdFeB magnets directly into new finished magnets, retaining up to 84% of original magnetic strength while achieving 90% energy savings over virgin production.
- Hydrometallurgical Separation
- Cyclic Materials (REEPure) and Solvay use chemical leaching and solvent extraction to produce separated rare earth oxides at >99% purity from mixed feedstocks.
- Hydrogen Processing (HPMS)
- HyProMag patented process uses hydrogen to decrepitate magnets embedded in scrap equipment, preserving alloy integrity for direct reprocessing into new magnets.
- Acid-Free Processes
- Geomega Resources ISR Technology achieves >90% recovery with >99% purity while recycling reagents and minimizing effluent—addressing a major environmental concern of conventional hydromet routes.
Government-Backed Momentum
The U.S. Department of Energy allocated USD 134 million in 2024-2025 to boost domestic rare earth recovery. The DoD previously invested USD 28.8 million in Noveon Magnetics (then Urban Mining Company) through the Defense Production Act. The EU Critical Raw Materials Act sets a target of 25% domestic recycling of critical materials by 2030, catalyzing investments from Solvay, Carester, and others across Europe.
Feedstock and Capacity
| Company | Planned Capacity | Primary Feedstock |
|---|---|---|
| Noveon Magnetics | 2,000 t/yr NdFeB magnets | End-of-life magnets, manufacturing scrap |
| Cyclic Materials | 600 t/yr MREO (expanding to 1,800 t) | EV motors, wind turbines, HDDs |
| Solvay La Rochelle | 2,000-5,000 t/yr REO potential | End-of-life motors, recycled MREO |
| HyProMag | 750 t/yr NdFeB (by 2027) | Scrap electronics, industrial magnets |
| Carester (Caremag) | 2,000 t/yr magnets (by 2026) | Recycled magnets, mining concentrates |