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.

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.