Sweeping tariffs set to be imposed by President Donald Trump next month may overshadow his top diplomat's first official trip to Asia.

Williams also added that tariffs on Southeast Asian countries could have unintended consequences. He said that many companies had moved operations from China to countries like Vie

Beyond the South East Asian producers, Trump's tariffs also raise costs for American companies that have been operating in the region for decades. The clothing and footwear industry stands to suffer - brands like Nike have long outsourced manufacturing to countries like Vietnam and Indonesia.