In another alert to China, U.S. President Donald Trump has threatened to slap tariffs of up to 155% if Beijing rejects what he describes as a “fair” trade agreement.

Trump told reporters on Monday that he will soon meet with Chinese President Xi Jinping to talk about trade and economic issues. He demanded what he called “balanced and honest trade,” asking that the United States not be exploited. Trump warned, “We’ll impose a 155% tariff on their products if China doesn’t agree to a fair deal.” “They need to stop abusing American workers.”

Economists and international markets are already worried by the comment, which brings to mind the bitter trade battle between the United States and China under President Trump. Increasing tariffs may lead to new economic tensions between the two biggest economies in the world, according to several economists. Trump said that a face-to-face meeting with Xi Jinping is being scheduled and that contact with Beijing is still going on despite the difficult conversation. He made it clear that while he is willing to talks, he will not give up on what he considers to be “American interests.”

Although state media have previously described Trump’s tariff threats as “economic coercion,” China has not yet responded to his comments officially. As global trade still being unstable, the warning adds to existing escalating anxiety related to U.S.-China ties. Trump’s most recent remarks suggest that if he wins again, trade may once more become a key point of conflict.