• Air Liquide S.A.
• Evonik Industries AG (RAG-Stiftung)
• INEOS Group Holdings S.A.
• Sumitomo Chemical Co. Ltd.
• Ascend Performance Materials LLC (SK Capital and Partners)
• Kuraray Co. Ltd.
• Asahi Kasei Corporation
• Mitsubishi Gas Chemical Company Inc.
• Cyanco International
LLC (Cerberus Capital Management
L.P.)
• Cornerstone Chemical Company (Littlejohn & Co. LLC)