Xi Jinping is in Southeast Asia to build bonds with countries that also face U.S. tariffs and have come under pressure from Washington to curb the transshipment of Chinese goods.

China said it would take “countermeasures” against countries that take trade deals with the United States that it deems to be detrimental to its interests. The Trump administration imposed a 145% tariff on China which countered with a 125% tariff on imports from the U.

China warned countries negotiating with the U.S. that they will face retaliation if they strike tariff deals that harm Beijing, further complicating trade talks around the world.