ARKEMA FRANCE S.A.
ASHLAND GLOBAL INC.
BASF SE
CHT GROUP
COMPAGNIE DE SAINT-GOBAIN S.A.
CSL SILICONES INC.
ELKEM ASA
EMERLAND PERFORMANCE MATERIALS
EVONIK INDUSTRIES AG
GRAFTECH INTERNATIONAL LTD.
HEG LTD.
KANEKA CORP.
KCC CORP.
Milliken & Co.
MOMENTIVE
PRIMASIL SILICONES LTD.
REISS MANUFACTURING INC.
ROGERS CORP.
SGL CARBON SE
SHIN-ETSU CHEMICAL CO. LTD.
SILTECH CORP.
SILTEQ LTD.
THE DOW CHEMICAL CO.
TOKAI CARBON CO. LTD.
UBE INDUSTRIES LTD.
WACKER CHEMIE AG
ZHEJIANG XINAN CHEMICAL INDUSTRIAL GROUP CO. LTD.