• INEOS Group Holdings S.A.
• Shell plc
• Honeywell International Inc.
• Mitsui Chemicals Inc.
• SABIC (Saudi Arabian Oil Company)
• Arkema S.A.
• Solvay SA
• Domo Chemicals GmbH
• Cepsa Qu?mica
S.A. (CEPSA)
• Kumho P&B Chemicals. Inc (Kumho Petrochemical Group)