Automation Control System Co., Ltd.
- Agency and distributors of factory automation components and equipment.
- http://acs.diytrade.com/

Thai Gulf Abrasives Co. Ltd.
- Manufactures bonded abrasive products including grinding wheels, sharpening stones and milling stones.
- http://www.thaigulf.com/

Topgas & Petrocon Service Co., Ltd.
- Authorized dealer of LPG (Liquid Petroleum Gas) equipment, cutting and welding machinery.
- http://www.topgas.co.th

Matco Thailand
- Valves, temperature control, gas detection, flow control automation, accessories and service. English-Thai engineering manuals translator.
- http://www.matco.f2s.com

Worldwide Steel Ball Co., Ltd.
- Steel balls and abrasive media manufacturer.
- http://www.wsb.co.th/

Testing Instrument Co., Ltd.
- Supplyer of materials testing machines for the metal rubber plastics and electronic industries.
- http://www.testinginstrument.com