Energy Fuels has cleared another hurdle in its push to build a Western supply chain for rare earth magnets. The U.S. producer said its terbium oxide now meets commercial specifications for a major Japanese magnet manufacturer. The approval means the material requires no further qualification before commercial use.
Energy Fuels produces the terbium oxide at its White Mesa Mill in Utah. The milestone gives the company another foothold in a market dominated by Chinese suppliers. Terbium plays a specialized but important role in high-performance permanent magnets. It can improve heat resistance and performance in neodymium-iron-boron, or NdFeB, magnets.
Those magnets support electric vehicles, robotics, aerospace systems and defense equipment. Demand for reliable non-Chinese supplies has also grown across Western industrial and security sectors.
Terbium clears commercial hurdle
Energy Fuels said one of Japan’s largest rare earth permanent magnet manufacturers outside China approved its terbium oxide. The manufacturer tested the Utah-produced material against its commercial requirements. It then confirmed that Energy Fuels could supply the oxide for magnet production.
Ross Bhappu, Energy Fuels’ president and CEO, called the qualification an important step for the company’s heavy rare earth business. “Successful qualification of our terbium oxide represents one of the strongest endorsements of our product quality,” Bhappu said. He said the company aims to supply materials needed across transportation, advanced electronics and defense technologies.
Terbium also carries a significant price premium because of its scarcity. Benchmark Mineral Intelligence estimates terbium oxide currently costs about $5.5 million per tonne in Europe. That price reflects the limited availability of heavy rare earth materials outside China.
Energy Fuels had already secured qualifications for two other key magnet materials. Those include neodymium-praseodymium oxide and dysprosium oxide. Together, NdPr, terbium and dysprosium support the production of advanced permanent magnets.
Utah mill expands its role
The White Mesa Mill has historically served as a major U.S. processing site for uranium and critical minerals. Energy Fuels now wants to turn the Utah facility into a larger hub for rare earth processing. The company sees heavy rare earth production as a key part of that strategy.
Commercial qualification matters because producing a rare earth oxide alone does not guarantee its acceptance by magnet manufacturers. The material must meet strict purity and performance requirements. Energy Fuels has now cleared that barrier for terbium with a major overseas customer.
The company also has bigger ambitions beyond rare earth processing. Energy Fuels has proposed acquisitions involving Australian Strategic Materials and German magnet producer Vacuumschmelze, also known as VAC. If those deals close, the company expects to link mining, rare earth processing and magnet manufacturing.
Mines to magnets
Such an integrated supply chain could give the U.S. and Europe greater control over materials needed for advanced manufacturing. Energy Fuels plans to supply NdPr, terbium and dysprosium from White Mesa into that broader network.
The approach could eventually connect raw mineral production with finished permanent magnets. China currently dominates much of the global rare earth processing and magnet supply chain. U.S. policymakers have increasingly sought domestic and allied alternatives.
Energy Fuels still faces work before completing its broader mine-to-magnet strategy. Yet the terbium qualification removes one important technical barrier. It also gives a U.S.-produced heavy rare earth oxide commercial approval from a major magnet manufacturer.
That could strengthen Energy Fuels’ position as Western manufacturers search for more diversified sources of critical materials.