US President Donald Trump.
Credit: Reuters Photo
The US Commerce Department's 25 per cent national security tariff on certain high-end semiconductors announced on Wednesday is a "phase one" action to protect the sector and could be followed by other announcements pending negotiations with other countries and companies, a White House official said on Thursday.
The official, speaking on condition of anonymity, said President Donald Trump has previously threatened a 100 per cent tariff on chips not made in the US as he seeks to build up semiconductor manufacturing.