China: Definitive antidumping duty on imports of polyphenylene sulfide from Japan, the United States, the Republic of Korea and Malaysia

In May 2019, the Chinese authorities initiated an antidumping investigation on imports of polyphenylene sulfide from Japan, the United States, the Republic of Korea and Malaysia. In October 2020, a provisional duty was imposed. In December, a definitive duty was imposed. In November 2025, a sunset review was initiated.