The US is considering 25 per cent tariffs on 200 billion dollars (£152bn) of Chinese goods – more than double the 10 per cent initially planned.
The review of the higher tariff is a request from President Donald Trump, who wants China to change its trade practices.
However, the decision risks escalating tensions between the world’s two largest economies.
China has already warned it would retaliate if the US went ahead with the plan, accusing Washington of blackmail.
“If the US side takes steps to further escalate the situation, we will definitely take counter-measures to resolutely safeguard our legitimate and legal rights and interests,” said foreign ministry spokesperson Geng Shuang on Wednesday.