Longtime Slashdot reader hackingbear writes: Following U.S. lawmakers’ call on Tuesday for broader bans on the export of chipmaking equipment to China, China dramatically expanded its rare earths export controls on Thursday, adding five new elements, dozens of pieces of refining technology, and extra scrutiny for semiconductor users as Beijing tightens control over the sector ahead of talks between Presidents Donald Trump and Xi Jinping. The new rules expands controls…








