The Notice is the result of an investigation into China's semiconductor industry that the Biden administration commenced in December 2024, and which focused on "foundational semiconductors (also known as legacy or mature node semiconductors), including to the extent that they are incorporated as components into downstream products for critical industries like defense, automotive, medical devices, aerospace, telecommunications, and power generation and the electrical grid."
The US president has threatened to impose a tariff of up to 300 percent on imports of semiconductors. United States President Donald Trump has threatened to impose tariffs of up to 300 percent on semiconductor imports, with exemptions for foreign companies that commit to manufacturing in the US. Trump has cast the proposed tariff as a way to drive investment to the US, but experts say it could also disrupt global supply chains and even penalise companies already making chips in the US.