Energy Fuels Produces First Terbium Oxide in US, Boosting Domestic Rare Earth Supply Chain

Published: Mar 26, 2026 15:00
US rare earth producer Energy Fuels announced that its White Mesa mill in Utah has successfully produced its first batch of terbium oxide with a purity of 99.9. This marks the first time in decades that the US has produced this heavy rare earth element from primary mineral raw materials, using monazite mined in Florida and Georgia. The company had previously trial-produced dysprosium oxide at the facility and is expected to expand heavy rare earth capacity in the coming years. It is estimated that upon completion of the second-phase expansion in 2029, the White Mesa mill will have the annual capacity to produce dysprosium oxide (288 mt), terbium oxide (80 mt), and Pr-Nd oxide (6,000 mt), supporting the development of a domestic rare earth supply chain in the US.

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