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.

Vietnam remains the region’s largest apparel exporter to the U.S., sending roughly $18.6 billion worth of goods in 2024, according to the U.S. Census Bureau. Cambodia follows with $7.8 billion, then Indonesia at $6.4 billion, Thailand at $2.7 billion, and Malaysia at $1.6 billion.

U.S. Secretary of State Marco Rubio will visit Malaysia this week for meetings of Southeast Asian Nations in his first trip to Asia as America's top diplomat, the State Department said on Monday, even as President Donald Trump announced hefty tariffs on the hosts and other regional partners and allies.