SIWA Testing Inspection & Consulting Co., Ltd

SIWA Testing Inspection & Consulting Co., Ltd

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SIWA Testing Inspection & Consulting Co., Ltd

Siwa Testing Inspection and Consulting Co., Ltd. were founded by Dr.-Ing. Siwa Bhongbhibhat, Thai metallurgist graduated from Stuttgart, Germany. The company was registered on the 4th of March 1982, registration no. 782/2525 (current reg. no. 0105525007826).

The company has continuously been in testing and inspection business for over 30 years. Our main clients are in Petroleum Refinery and Terminal, Gas Plant, Petrochemical Plant, Industrial Plants and Manufacturers of Steel Equipment.


Inspection and Expediting of Shop Manufacturing, Fabrication, Construction and Installation
Welding Inspection / Welding Procedure Qualification / Welder Qualification
Maintenance Inspection
Non-Destructive Testing: Basic NDT and Advanced NDT
Materials Testing
Failure Analysis / Fitness-for-Service
Statutory Inspection of LPG and NG Vessel and System
Statutory Inspection of Power Boiler