Aekyung chemical

Air Liquide Korea Co.,Ltd

ARKEMA

ASK Chemicals

BASF

COSMAX

Covestro

DIG AIRGAS

DL Chemical

DONGWOO FINE-CHEM

DuPont

Eastman

Evonik Industries

GS Caltex

Hanswa Soltions/Chemical

Hanwha Totalenergies

HYOSUNG CHEMICAL

INEOS STYROLUTION

Infineum

ISU

KAI CO., LTD.

KCI

KOLON INDUSTRIES

Korea Petrochemical Ind. Co., LTD

KPX Chemical

Kumho P&B Chemicals., Inc

Kumho Petrochemical Co., Ltd. (KKPC)

LANXESS

LG Chem

LOTTE Chemical Corporation

LOTTE INEOS CHEMICALS CO., LTD.,

LOTTE MCC

LX MMA

Merck KGaA

OCI Company Ltd.

PolyMirae

SAMNAM PERTOCHEMICAL CO., LTD.,

SK geocentric

SK specialty

SKC

Suheung

TAEKWANG

TONGSUH PETROCHEMICAL CORP., LTD.,

Trinseo

YEOCHUN NCC

YONGSAN CHEMICALS

KCAIA

KCMA

KFA

Korea Petroleum Association

KPIA

KSCIA

KTR