Claiming that they were helping to bring drugs and illegal immigrants into the US. On February 4, all Chinese imports into the US were subject to a 10% duty.
China retaliated by imposing 15% tariffs on coal and liquefied natural gas and a 10% tax on US crude oil, farm equipment, and large-engine automobiles as of February 10.
China now imposes a 125 percent tax on American exports, while the US imposes a 145 percent tax on Chinese imports. The nations have persisted in their efforts to reach the current tariff levels.