• BASF SE
• Weifang Binhai Petro-Chem Co. Ltd (Tiande Chemical Holdings Co. LTD)
• Airedale Chemical Holdings Limited
• Linyi Shansong Biological Products Co. Ltd.
• SABIC (Saudi Arabian Oil Company)
• AG CHEMI GROUP s.r.o.
• Pon Pure Chemicals Group (Pure Chemicals Co.)
• Santa Cruz Biotechnology Inc.
• Sumitomo Chemical Co. Ltd.
• UBE Corporation