Exporters this week jostled to load and ship cargo from Shenzhen's Yantian Port, one of the world's largest container ports, before an eight-day Lunar New Year holiday and ahead of a potential wave of U.

President Donald Trump said in an Oval Office signing ceremony Monday evening that his administration will impose 25% tariffs on Mexico and Canada on February 1, an extraordinary change in North American trade policy that could raise prices for American consumers.