BEIJING (Reuters) -Billions of dollars of Chinese goods have been impacted by additional U.S. tariffs since 2018, initially under the first Donald Trump presidency and later under the Biden administration.

Shortly after President Donald Trump returned to the White House in January, he launched a tariff war against China, as part of a broader implementation of import taxes on goods from several dozen countries as Trump seeks to reset the foundations of global trade.

The president said he and Chinese President Xi Jinping still need to sign off on a preliminary deal, even though he called it "done."