Can a new refinery outside China supply military-grade rare earths?
Core argument: Lynas produces samarium oxide at its Kuantan, Malaysia complex, a rare earth used in heat-resistant magnets for jet fighters and missiles that had been refined almost exclusively in China.
For more than a decade, Lynas has had a refinery in Kuantan, a Malaysian chemical-industry center. But it only produced light rare earths, which tend to be more common, while it sold heavy rare earths to China for processing. Last year, as the U.S.-China trade war was at its peak, Lynas finished a new heavy rare-earths processor in Kuantan. Last month, Lynas began producing samarium oxide, a difficult-to-source rare earth in high military demand that is used in heat-resistant magnets for jet fighters and missiles. The mineral had been refined almost exclusively in China, causing a scramble among defense suppliers last year when China cut off exports in April. A report from the U.S. Geological Survey last year found samarium was the highest-risk mineral for disruption, with shortages potentially costing U.S. industry billions of dollars.


