On January 17, 2018, the U.S. Department of Commerce announced a final anti-subsidy ruling on Fine Denier Polyester Fine Fibers imported from China and India: (1) the subsidy rate of Jiangyin Hailun Chemical Fiber Co. Ltd. of China, 38.00%, Jiangyin City Hua Subsidy rate of 47.57% for Jiangyin Huahong Chemical Fiber Co. Ltd. and 42.79% for other Chinese producers / exporters. (2) The subsidy rate of Bombayyeye & Mfg. Co. Ltd. of India is 13.38%, the subsidy rate of Reliance Industries Limited is 27.36%, and the subsidy rate of other producers / exporters in India is 24.80%. This case involves the United States coordinated tariff heading 5503.20.0025 under the product. The US International Trade Commission (USITC) expects to file a final anti-subsidy industrial injury award on March 2, 2018.

On May 31, 2017, the American companies DAKAmericas LLC, NanYaPlastics Corporation, America and Auriga Polymers Inc. filed applications with the U.S. International Trade Commission and the U.S. Department of Commerce on behalf of U.S. domestic industries, requesting that the U.S. import of products from mainland China, India, South Korea, Taiwan and Vietnam Once polyester staple fiber launched anti-dumping and countervailing investigations. On June 21, 2017, the U.S. Department of Commerce conducted an anti-dumping investigation on fine denier polyester staple fibers imported from mainland China, India, South Korea, Taiwan and Vietnam. At the same time, it launched a countervailing filing investigation on the imported products from China and India . On July 13, 2017, the U.S. Department of Commerce and the U.S. International Trade Commission put an end to the anti-dumping investigations against the Vietnamese-related products due to the withdrawal of the anti-dumping petitions filed by the U.S. companies against the Vietnamese-related products. On July 14, 2017, the US International Trade Commission (ITC) affirmed the preliminary ruling of anti-dumping industrial damage on fine denier PET staple fibers imported from mainland China, India, South Korea and Taiwan. At the same time, it made revisions to the imported products from China and India Affirmative industry damage affirmative preliminary ruling. On October 31, 2017, the U.S. Department of Commerce announced that it has imposed a preliminary anti-subsidy ruling on fine denier polyester staple fibers imported from China and India. According to the statistics of the United States, the U.S. imports to China and India in 2016 amounted to about 79.4 million U.S. dollars and 14.7 million U.S. dollars respectively.