Sweeping tariffs set to be imposed by President Donald Trump next month may cast a pall over his top diplomat’s first official trip to Asia this week — just as the U.S. seeks to boost relations with Indo-Pacific nations to counter China’s growing influence in the region.

President Donald Trump made clear today that there’s no wiggle room for his new Aug. 1 threat of hefty tariffs on 14 countries, along with however many more receive letters in the coming days. “There has been no change to this date,

President Trump said Japan and South Korea would face tariffs of 25 percent unless they reached an agreement with the United States. Other countries received notice of higher levies.

China warned the Trump administration on Tuesday against reigniting trade tension by restoring tariffs on its goods next month, and threatened to retaliate against nations that strike deals with the United States to cut China out of supply chains.

Chinese state media warned the Trump administration against striking deals that sideline China, after the president announced that Asian countries would face higher tariffs starting on Aug. 1.