Singapore | China is tightening its grip over global critical mineral supplies by placing export controls on antimony, a metal used widely in ammunition and other military applications that has surged in price this year.

The country will apply the restrictions to antimony and antimony-related materials from September 15 to safeguard national security, a statement from the Ministry of Commerce said. That adds to earlier controls on other critical minerals including gallium and germanium, which have set off alarm bells in Washington.

Bloomberg and Reuters