Summary
US imports of antimony oxides from Thailand, Mexico surge after China ban
Shift in trade flows points to transshipment of minerals, experts say
Antimony shipments to US by Chinese-owned Thai Unipet soared, shipping records show
Unusually large quantities of antimony - a metal used in batteries, chips and flame retardants - have poured into the United States from Thailand and Mexico since China barred U.S. shipments last year, according to customs and shipping records, which show at least one Chinese-owned company is involved in the trade.
China dominates the supply of antimony as well as gallium and germanium, used in telecommunications, semiconductors and military technology. Beijing banned exports of these minerals to the U.S. on December 3 following Washington's crackdown on China's chip sector.
The resulting shift in trade flows underscores the scramble for critical minerals and China's struggle to enforce its curbs as it vies with the U.S. for economic, military and technological supremacy.
Specifically, trade data illustrate a re-routing of U.S. shipments via third countries - an issue Chinese officials have acknowledged.
Three industry experts corroborated that assessment, including two executives at two U.S. companies who told Reuters they had obtained restricted minerals from China in recent months.
The U.S. imported 3,834 metric tons of antimony oxides from Thailand and Mexico between December and April, U.S. customs data show. That was more than almost the previous three years combined.