Rare Earth Permanent Magnets

Rare Earth Permanent Magnets (REPMs) — primarily Neodymium-Iron-Boron (NdFeB) sintered magnets — are indispensable components in permanent magnet synchronous motors (PMSMs), which power most modern electric vehicles. They are also critical for wind turbine generators, defence electronics, aerospace actuators, and consumer electronics. NdFeB magnets offer the highest energy density of any permanent magnet material, enabling compact, high-torque, energy-efficient motors. The manufacturing process for sintered NdFeB magnets involves over 100 complex and environmentally challenging steps — from rare earth ore processing to alloying, sintering, and surface coating — creating significant barriers to entry.