Business Group
Local Plants
  • Summit Auto Body Industry  (Samutprakarn)
  • Summit Auto Body Industry  (Rodjana Industrial Park)
  • Summit Auto Tech Industry (Samutprakarn)
  • Summit Laemchabang Auto Body Work (Laemchabang Industrial)
  • Summit Laemchabang Auto Body Work (Eastern Seaboard Industrial)
  • Summit R&D Center (Research & Development Center)
  • Summit Auto Body Skill Development Center (Training Center)​

Overseas Plant
  • PT. Summit Adyawinsa 
Join Venture
  • ​​Amata Summit Ready Built Co., Ltd.  (Ready Built Factory)
  • Bangkok Eagle Wings Co., Ltd.  (Stamping & Machining Parts)
  • Central Motor Wheel (Thailand) Co., Ltd.  (Steel Wheels)
  • Complete Auto Parts Co., Ltd.  (Assembly Plastic, Steel, Zinc, Brass and Machining Part)
  • Complete Auto Rubber Manufacturing Co., Ltd.  (Rubber Parts)
  • HAYAMA Intertrade Co., Ltd.  (Sound Proof Parts & Trading)
  • Hiruta & Summit Co., Ltd.  (Stamping Parts)
  • H.S.H. Co.,Ltd.  (Investing in Holding Shares)
  • PT. Summit Adyawinsa (Indonesia)  (Press Part)
  • Sankei Summit (Thailand) Co., Ltd.  (Exhaust System, Door Sash)
  • Showa Autoparts (Thailand) Co., Ltd.  (Power Steering)
  • Steel Aliance Service Center Co., Ltd.  (Steel Material, Coil Center)
  • Summit Ansei Auto Parts Co., Ltd.   (Door & Hood Latches)
  • Summit Chugoku Seira Co., Ltd.  (Automotive Nuts & Bolts)
  • Summit Keylex (Thailand) Co., Ltd.  (Assembly Parts)
  • Summit Kurata Manufacturing Co., Ltd.  (Machining Parts)
  • Summit Otsuka Manufacturing Co., Ltd.  (Parking Brake)
  • Summit Showa Manufacturing Co., Ltd.  (Shock Absorbers)
  • Summit Steering Wheel Co., Ltd.  (Steering Wheels and Knob Gears)
  • Thai Progress Rubber Co., Ltd.  (Rubber Parts)
  • Thai Steel Cable Public Company Limited  (Control Cables and Window Regulator)

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