NS - Siam United Steel Co Ltd

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Based in Rayong, Thailand. Established in 1995. NS - Siam United Steel Co Ltd is a producer of carbon and alloy steel cold rolled, galvanized sheet and blackplate. The company was previously known as The Siam United Steel (1995) Co Ltd.


  • 12 Pakorn Sonkrohaj Road, Huaypong  

Town, State, Country

  • Muangrayong, Rayong, Thailand  


  • 21150 
  • President Hiroaki Sato
  • Year Established 2016
  • Year Established Initial 1995
  • No. of employees 1,001-5,000
  • End User Industries Automotive, white goods, packaging


  • ISO 14001
  • OHSAS 18001

Trade Association Membership

  • The Federation of Thai Industries
  • ISIT - Iron and Steel Institute of Thailand


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