BASF SE
Honeywell International Inc.
W. R. Grace & Co.
Zeochem AG
CECA SA (Arkema Group)
Clariant AG
Kuraray Co. Ltd
Cabot Corporation
Guild Associates Inc.
Axens Group
Hengye Inc.
Zeolyst International
JACOBI CARBONS GROUP (Osaka Gas Chemicals Co. Ltd.)
Pall Corporation
Dow Inc.