Nvidia expects to take $5.5bn hit as US tightens AI chip export rules to China

Shares plunge as firm says H20 chip, designed for Chinese market to comply with controls, will now need special licenceNvidia has said it expects a $5.5bn (£4.1bn) hit after Donald Trump’s administration barred the chip designer from selling crucial artificial intelligence chips in China, sending shares in one of the US’s most valuable companies plunging in after-hours trading.The company said in an official filing late on Tuesday that its H20 AI chip, which was designed specif