Aiming to improve and develop management system to achieve excellent products and service with continually reducing cost and lead time and concerning environment friendly policy

Company Profile

     SCI CORPORATION CO., LTD. ( Former name : Siam Cast Iron Works ) was established in April, 1974 under a joint venture agreement among Thai and Japanese enterprises, producing high quality cast iron and ductile iron valves by employing Japanese technology and expertise.

     Our products are widely accepted both in the local and international markets under the trademark     for water works and waste service, air-conditioning, irrigation, power plant and industrial use. All products are manufacturing in conformity with AWWA, MSS Practice, BS, JIS, DIN and ISO standards, which including sluice gate, gate valve, butterfly valve, check valve, air valve and others.

     Since the commencement of production under the promotion certificate from the Board of Investment, the Company has been specialized in manufacturing high quality valves of cast iron and ductile iron. We have performed the whole production course from efficient casting, precise machining, and careful assembling to the severe individual hydrostatic or air pressure testing and quality assurance inspection.


1974 Established ( Thai - Japanese joint venture )
1984 TIS ( Thai Industry Standard ) marks received
1986 UL / FM / ULC approved and listed
1994-95 TQM (Total Quality Management) instruction started by Japanese expert from JICA
1996  ISO 9002 : 1994 certified by UL
Selected to be a model company in JAPAN - ASEAN TQM PROJECT phase I ( 12 countries in ASEAN including 2 companies for Thailand ) The project had ended on March 31, 2000
2001 ISO 9001 : 2000 certified by UL
2002 TPM (Total Productive Maintenance) Implementation in July
2004 Thailand Quality Award Criteria ( Baldridge - based ) Implementation
2008 TPS (Toyota Production System) Implementation in May
2010 Autonomous Maintenance Step 5 finished
ISO 9001 : 2008 certified by UL
NSF61 approved
2011 ISO 14001 : 2004 certified by UL
2012 Changing of company name from "Siam Cast Iron Works Co., Ltd." to "SCI Corporation Co., Ltd."
2017 ISO 9001 : 2015 certified by UL
ISO 14001 : 2015 certified by UL