PortandTerminal.com, May 25, 2019 In 2018 almost all U.S. farm exports to China became subject to stiff tariffs as a result of the tit-for-tat trade war between the two countries. The United States levied tariffs on $250 billion of Chinese exports. China responded by levying their own tariffs on $110 billion of US exports. Tit-for-Tat. … Continue reading US-China trade war crushes shipments at Seattle and Tacoma Ports