Beijing said on Tuesday it had filed a complaint with the World Trade Organization against the United States over President Donald Trump's tariff increases on Chinese goods.
The statement comes a day after Trump ordered additional tariffs against Chinese goods, increasing previously imposed 10 percent levies to 20 percent.
"The United States' unilateral tax measures seriously violate WTO rules and undermine the foundation of China-US economic and trade cooperation," Beijing's commerce ministry said in a statement, adding that it was "strongly dissatisfied and firmly opposed" to the tariffs.
In response to the US tariffs, Beijing has imposed new duties on a range of agricultural imports from the United States.
The additional 15 percent tariffs on products including chicken, wheat, corn and cotton are due to come into effect next week.
"China will, in accordance with WTO rules, firmly safeguard its legitimate rights and interests and defend... the international economic and trade order," the commerce ministry statement added.
A WTO official confirmed to AFP that the new complaint from China had been received.
and Canada which he says are punishment for failing to halt the flow of migrants and drugs into the United States. (AFP)