China has outlined new curbs on exports of rare earths and related technologies, extending controls over the use of the elements critical for many high-tech products and military applications.

China called President Donald Trump'slatest U.S. tariffs on Chinese goods hypocritical on Sunday and defended its curbs on exports of rare earths, but stopped short of imposing new levies on U.S. products.

China's latest export controls on rare earths are expected to have a direct impact on the global semiconductor supply chain, complicating the production of AI and memory chips from major US and South Korean suppliers,

Exports of 12 of them are now restricted after the Ministry of Commerce added five - holmium, erbium, thulium, europium and ytterbium - along with related materials. The latest five are silvery in colour and can be used in various applications including for the nuclear, defence, medicine and fiber-optics sectors.

China dramatically expanded its rare earths export controls on Thursday, adding five new elements and extra scrutiny for semiconductor users as Beijing tightens control over the sector ahead of talks between Presidents Donald Trump and Xi Jinping.

Some very strange things are happening in China!” Trump posted, hinting that he’ll cancel his upcoming talk with Xi Jinping.

BEIJING (Reuters) -China defended its export control measures on rare earths as "legitimate" on Sunday after President Donald Trump retaliated against the curbs by announcing steep new U.S. tariffs on Chinese goods.

Roth Capital analyst Suji Desilva just doubled his price target on USA Rare Earth stock. USA Rare Earth aims to produce rare earths and rare earth magnets in the U.S. China just imposed new licensing rules on exports of rare earths from China.