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Subsidiaries
GCO GC Oxirane Company Limited  
GCS GC Styrenics Company Limited  
Glycol GC Glycol Company Limited www.gcglycol.com
PPCL PTT Phenol Company Limited www.pttphenol.com
Solution Creation Solution Creation Company Limited  
GCL GC Logistics Solutions Company Limited www.gc-logistic.com
GCM GC Marketing Solutions Company Limited www.gcmgrp.com
GCP GC Polyols Company Limited www.gcpolyols.com
GGC Global Green Chemicals Public Company Limited www.ggcplc.com
ENVICCO ENVICCO Limited  
GC-M PTA GC-M PTA Company Limited  
TPRC Thai PET Resin Company Limited  
Vencorex Vencorex Holding www.vencorex.com
GCEC GC Estate Company Limited  
GCME GC Maintenance and Engineering Company Limited www.gcme.co.th
GCTC GC Treasury Center Company Limited  
NPC S&E NPC Safety and Environmental Service Company Limited www.npc-se.co.th
NPCSG NPC S&E Security Guard Company Limited www.npc-se.co.th
TTT Thai Tank Terminal Limited www.thaitank.com
GCI GC International Corporation  
GCIA PTTGC Innovation America Corporation www.gcinnovationamerica.com
GC Inter PTTGC International Private Limited  
GCV GC Ventures Company Limited innovation.pttgcgroup.com/th/pttgcs-innovation
GCVA GC Ventures America Corporation  
PTTGC America Corporation PTTGC America Corporation pttgcbelmontcountyoh.com
PTTGC America LLC PTTGC America LLC pttgcbelmontcountyoh.com
PTTGC Netherlands PTTGC International (Netherlands) B.V.  
Joint Ventures
EOM Emery Oleochemicals (M) Sdn. Bhd. www.emeryoleo.com
ESC Emery Specialty Chemicals Sdn. Bhd. www.emeryoleo.com
HMC HMC Polymers Company Limited www.hmcpolymers.com
NatureWorks NatureWorks LLC www.natureworksllc.com
PTTAC PTT Asahi Chemical Company Limited www.pttac.com
PTTMCC PTT MCC Biochem Company Limited www.pttmcc.com
RGL Revolve Group Limited  
Affiliates
DYCT Dynachisso Thai Co. Ltd  
EFT Eastern Fluid Transport Company Limited  
KGC Kuraray GC Advanced Materials Company Limited  
PTT Digital PTT Digital Solutions Company Limited www.pttdigital.com
PTTES PTT Energy Solutions Company Limited www.pttes.com
SPIG S. P. Petpack Inter Group Company Limited sppetpack.com
VNT Vinythai Public Company Limited www.vinythai.co.th
Others
BSA Business Services Alliance Company Limited www.pttbsa.com
GPSC Global Power Synergy Public Company Limited www.gpscgroup.com
PRS RAYONG Pracharath Rak Samakkee Rayong (Social Enterprise) Company Limited  
SPSE Sarn Palung Social Enterprise Company Limited
TPBIMS TPBI & Myanmar Star Company Limited