The rules, some of which take immediate effect, build on restrictions sent in letters this year to top toolmakers KLA Corp, Lam Research Corp, and Applied Materials Inc, effectively requiring them to halt shipments of equipment to wholly Chinese-owned factories producing advanced logic chips.
The raft of measures could amount to the biggest shift in US policy toward shipping technology to China since the 1990s.
If effective, they could hobble China’s chip manufacturing industry by forcing American and foreign companies that use US technology to cut off support for some of China’s leading factories and chip designers.
“This will set the Chinese back years,” says Jim Lewis, a technology and cybersecurity expert at the Center for Strategic and International Studies (CSIS), a Washington D.C.-based think tank, who said the policies harken back to the tough regulations of the height of the Cold War.
In a briefing with reporters on Thursday previewing the rules, senior government officials said many of the measures were aimed at preventing foreign firms from selling advanced chips to China or supplying Chinese firms with tools to make their own advanced chips.
They conceded, however, that they had not secured any promises that allied nations would implement similar measures and that discussions with those nations are ongoing.
The expansion of US powers to control exports to China of chips made with US tools is based on a broadening of the so-called foreign direct product rule.
It was previously expanded to give the US government authority to control exports of chips made overseas to Chinese telecoms giant Huawei Technologies Co Ltd (HWT.UL) and later to stop the flow of semiconductors to Russia after its invasion of Ukraine.