ASAHI KASEI ADVANCE CORP.
BRB INTERNATIONAL
CHT GERMANY GMBH
DOW
DUPONT
DYSTAR SINGAPORE PTE. LTD.
ELKEM ASA
EVONIK INDUSTRIES AG
INNOSPEC
KCC SILICONE CORP.
MITSUBISHI SHOJI CHEMICAL CORP.
SHIN-ETSU CHEMICAL CO. LTD.
SILCHEM INC.
SPECIALTY SILICONE PRODUCTS INC.
WACKER CHEMIE AG