Since U.S. President Donald Trump imposed steep tariffs on China last month, Beijing has responded in kind. On state and social media, it posted images of Mao Zedong, lambasted "imperialists," and sent a message: capitulation to bullies is dangerous,

The drop in U.S.-bound shipments was offset by a surge in Chinese goods to Southeast Asia, Africa, Europe and Latin America.

Shipments to the U.S. sank 21% in dollar terms as Trump’s tariffs on most Chinese exports rose to as high as 145%. With Chinese tariffs on U.S. goods at 125%, business between the two biggest economies has grown increasingly uncertain.