US President Donald Trump is to impose 25% tariffs on $50bn worth of Chinese goods, accusing Beijing of intellectual copyright theft.
Tariffs that affect more than 800 products worth $34bn in annual trade are due to come into effect on 6 July.
The White House said it would consult on tariffs on the other $16bn of products, and would apply these later.
If China retaliates, as it has already pledged to do, the US will impose even more tariffs, Mr Trump warned.
Mr Trump said the tariffs were “essential to preventing further unfair transfers of American technology and intellectual property to China, which will protect American jobs.”
The Chinese product lines that have been hit range from aircraft tyres to turbines and commercial dishwashers.
China has previously said it would apply new duties to American products that include US aircraft and soybeans.
Earlier on Friday, Chinese foreign ministry spokesman Geng Shuang stressed again that all trade talks between China and the US would be void if Washington imposed trade sanctions: “If the US takes unilateral and protectionist measures that harm Chinese interests, we will respond immediately by taking the necessary decisions to safeguard our legitimate rights and interests.”