Ashland Global Holdings Inc. BASF SE
China National BlueStar (Group) Co Ltd. (China National Chemical Corporation)
China Petroleum & Chemical Corporation (Sinopec)
Chongqing Jianfeng Industrial Group Co. Ltd. Dairen Chemical Corporation
Korea PTG Co. Ltd. Lyondellbasell Industries Holdings B.V. Markor Investment Group Co. Ltd. Mitsubishi Chemical Corporation
Nan Ya Plastics Corporation
Shanxi Sanwei Group Co. Ltd. SK Geo Centric Co. Ltd. Xinjiang Tianye (Group) Co. Ltd.