Since 2022, the US has progressively expanded the types of chips that cannot be sold to China and the geographical scope of the trade restrictions to cover more countries, in an attempt to slow down China’s application of AI to defence and other strategic industries.

Two U.S. Congress members are calling on President Donald Trump's administration to consider restricting the export of artificial intelligence chips made by Nvidia, alleging Chinese AI firm DeepSeek has relied on them.

Export controls need to be tightened after revelations the Chinese company used Nvidia technology, the leaders of a congressional committee said.