• Alliance Refining Co.,Ltd. (ARC)
  • Alstom Power (Thailand) Co.,Ltd.
  • Bangkok Polyethylene Co.,Ltd.
  • Danchang Blo-Energy Co.,Ltd.
  • Guff Congeneration Co.,Ltd.
  • National Pretrochemical Public Co.,Ltd.
  • Rayong Electricity Generation Co.,Ltd.
  • Thai Airways Catering - Suwarnnabhumi
  • Thai Petrochemical Industry Public Co.,Ltd.
  • S.Napa (Thailand) Co.,Ltd.
  • Samutprakarn Cogeneration
  • Thai Industrial Gass Public Co.,Ltd.
  • Tuntex Petrochemical Public Co.,Ltd.
  • GlowIPP Co.,Ltd.
  • Toyo Thai Co.,Ltd.
  • Thai Oil Co.,Ltd.
  • Bangpakong Power Plant
  • Pacific Plastics (Thailand) Co.,Ltd.
  • PTT Chemical Public Co.,Ltd.
  • Rayong refinery Public Co.,Ltd.
  • TLP Cogeneration Power Plant
  • Kurita-GK Chemical Co.,Ltd.