Top U.S. officials have condemned China’s expanded restrictions on rare-earth element exports, calling them a “global supply-chain power grab.” They urged Beijing to roll back the measures to avoid escalating decoupling between major economies. The move adds to trade tensions and has rattled global markets sensitive to critical commodity flows. Investors now worry that disruption to chip, battery, and high-tech production chains could ripple across industries. Asia markets trended cautiously, given exposure to manufacturing and materials sectors.