• Ascend Performance Materials LLC
• Asahi Kasei Corporation
• BASF SE
• Koch Industries Inc. (Invista BV)
• Liaoyang Tianhua Chemical Co. Ltd
• Radici Partecipazioni S.p.A.
• Solvay SA
• Sumitomo Chemical Co. Ltd.
• DOMO Chemicals Gmbh
• LANXESS AG