US tells companies to stop passage of Nvidia's Blackwell AI chips to China
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The US Commerce Department's Bureau of Industry and Security has quietly closed a year-old loophole that let Nvidia's most advanced Blackwell AI chips reach overseas subsidiaries of Chinese companies without an export licence. Industry sources estimate hundreds of thousands of chips may have already shipped through the gap. The new guidance still leaves data centre servicing and TSMC foundry due diligence untouched, raising fresh enforcement questions.
