Huntsman International LLC,Changzhou Yabang Chemical Co.Ltd. ,Shanxi Qiaoyou Chemical Co. Ltd. ,Changzhou Yabang Chemical Co. Ltd. ,Zibo Qixiang Tengda Chemical ,Polynt-Reichhold Group ,Nippon Shokubai Co. Ltd. ,Mitsubishi Chemical Corporation ,LANXESS ,Gulf Advanced Chemical Industries Co.Ltd. (GACIC)