3M
ADEKA CORP.
AKCROS CHEMICALS LTD.
ALBEMARLE CORP.
AM STABILIZERS CORP.
ARKEMA INC.
ASAHI KASEI CHEMICALS CORP.
BAERLOCHER GMBH
BASF
BRUGGEMANN
CHEMSON POLYMER-ADDITIVE AG
CHEVRON PHILLIPS CHEMICAL
CHI MEI CORP.
CLARIANT INTERNATIONAL LTD.
COLOR-CHEM INTERNATIONAL CORP.
COVESTRO
DSM
DSM ENGINEERING PLASTICS
DUPONT
EASTMAN CHEMICAL
EMS GRIVORY
EVONIK INDUSTRIES AG
GALATA CHEMICALS
GOLDSTAB ORGANICS
HEBEI JINGXIN CHEMICAL GROUP
HITACHI CHEMICAL CO.
HUBEI NANXING POLYMER ADDITIVES CO. LTD.
IDEMITSU KOSAN
IMERYS PERFORMANCE ADDITIVES
INEOS STYROLUTION AMERICAS LLC
KANEKA
KD CHEM
KISUMA CHEMICALS
KOLON INDUSTRIES
KURARAY
LANXESS AG
LG CHEM
LOTTE ADVANCED MATERIALS CO. LTD.
LUCITE INTERNATIONAL
LYONDELLBASELL INDUSTRIES
MITSUBISHI CHEMICAL CORP.
MITSUBISHI ENGINEERING PLASTICS
MITSUI CHEMICALS AMERICA INC.
MITSUI CHEMICALS GLOBAL
NITTO KASEI
NOVISTA CHEMICALS
PAU TAI INDUSTRIAL
PLASKOLITE INC.
POWER ADDITIVES
PPG INDUSTRIES INC.
REAGENS GROUP
SABIC INNOVATIVE PLASTICS
SHIN-ETSU CHEMICAL CO. LTD.
SOLVAY SPECIALTY POLYMERS USA LLC
SONGWON
SPARTECH
SUMITOMO CHEMICAL CO.
TEIJIN KASEI AMERICA INC.
TOPAS ADVANCED POLYMERS (POLYPLASTICS)
TOPAS ADVANCED POLYMERS GMBH
TORAY INDUSTRIES
TORAY PLASTICS (AMERICA) INC.
TOSOH CORP.
TOTAL PETROCHEMICALS USA
TRINSEO LLC
VALTRIS SPECIALTY CHEMICALS
WELLS PLASTICS LTD.
ZEON Corp.