On February 19, 2021, Pakistan's National Customs Commission issued the latest notice in case No. 46 / 2016/NTC/PFY/NR/2020, saying that because it was impossible to determine the separate dumping margin of the applicant Suzhou Rusheng Chemical Fiber Co., Ltd. during the investigation period, it terminated the reexamination investigation of the new anti-dumping exporter of polyester filament yarn (Polyester Filament Yarn) imported from China and Malaysia. 11.35% anti-dumping duty was levied on Suzhou Rusheng Chemical Fiber Co., Ltd.