Thai Special Wire Co.,Ltd Products : Piano Wire, Spring Wire

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About Us

Since an establishment in 1974, Thai Special Wire Co., Ltd. (“TSW”) is a joint venture of Nippon Steel SG Wire Co., Ltd., (“NSSG”) the pioneer manufacturer of specialty steel in Japan, Sumitomo Corporation and Thai investors.

TSW started manufacturer PC Wires as the main product in the beginning (until 2016), along with operation history; meanwhile the production of Spring Wires (Hard Drawn Wires & Piano Wire) had been started in 1981 , also fully installed a Patenting line for High-Quality Piano Wires in 2014 and then investment the first facilities in Thailand for Oil Temper Wires operation in 2016 by the reliable technology transferred from NSSG respectively.

Nowadays TSW’s high value products have been continuing developed to support the important and various industries of the country & worldwide such as automobile, motorcycle, home and office appliances etc., which an emphatic aiming to reach the customers quality requirement in the current day and for the future growth as well.

History of Thai Special Wire
1975 Start Production & Sales of PC Wire at Rangsit Factory
1978 Start Production & Sales of PC Strand
1981 Start Production & Sales of Spring Wire
1991 Start Operation at Lat Lum Kaeo Factory (Current Factory)
1997 Asian Currency Crisis (Tom Yan Kun Crisis)
2002 Closing of Rangsit Factory and Expansion of Lat Lum Kaeo Factory Being certified TIS/ ISO 9001:2000
2011 Acquisition of 51% shares TSW by NSSG to be consolidated subsidiary company
2011 Thai Heavy Flood Increase in capital to 182 Million Baht
2014 Start operation of new patenting line for High Quality Piano Wire
2016 Start operation of new facility for Oil Tempered Wire
2016 Stop operation of Sales of PC Wire & PC Strand
2018 Being certified ISO 9001:2015 & ISO 14001:2015
BOI Promotion
  1974 for PC Wire
  1978 for PC Strand (Normal Relaxation)
  1981 for Spring Wire
    1984 for PC Strand (Low Relaxation)
Registered Capital
: 182 Million Baht
: Sumitomo Corporation (Japan) 36%
: Thai Investors 13%