On March 5, 2020, the United States International Trade Commission (ITC) voted to make an affirmative preliminary determination of anti-dumping industry damage to difluoromethane imported from China, ruling that the product involved in the alleged dumping act caused the domestic industry in the United States. Substantial damage. In the ruling, all five members voted affirmatively. Based on the US International Trade Commission’s affirmative ruling on China’s products involved, the US Department of Commerce will continue to conduct anti-dumping investigations on China’s products involved, and it is expected that preliminary anti-dumping decisions will be made before July 2, 2020.

On February 13, 2020, in response to an application filed by American company Arkema Inc. on January 23, 2020, the US Department of Commerce announced that it initiated an anti-dumping investigation against difluoromethane imported from China. This case involves products under the US Harmonized Tariff Number 2903.39.2035. According to US statistics, the total US imports of difluoromethane from China in 2018 were approximately US $ 21.5 million.