Company Name STP&I Public Company Limited
Company EstablishedJanuary 1975
Registered Address32/24 Sino-Thai Tower, 3rd Floor, Sukhumvit 21 (Asoke)
Klongtoey Nua, Wattana Bangkok 10110 Thailand
Telephone Number+66 (0) 2260 1181
Fax Number+66 (0) 2260 1182
E-mail contact@stpi.co.th
Web sitehttp://www.stpi.co.th
Registered Capital 406,297,100 Baht including 1,625,188,400 common shares at 0.25 Baht Par Value
Paid-up Capital 406,295,369.50 Baht including 1,625,181,478 common shares at 0.25 Baht Par Value
Number of Employee70 persons of permanent employee and 900-1,000 persons of contracted employee
Number of Workshops2 steel fabrication shops located at Chonburi and Rayong 1 pipe fabrication shop located at Sriracha and 1 module assembly yard located at Laem Chabang
Capacity (Steel)50,000 ton per annum
Capacity (Pipe) 10,000 ton per annum
Capacity (Module) 60,000 ton per annum
Quality Certification • ISO 9001 : 2008 – The Manufacture of Structural Steel and Piping Work (Excluding Design)
• JSA Grade “H” (Japan Steel Structure Appraisal Center Limited) for Structural Steel Work for export to Japan.
• ISO3834-2: 2013 – Pipe Welding
• OHSAS 18001 : 2007 Occupational health and safety
• ISO 14001 : 2015 Environmental Management
Contact Person
  1. Mr. Masthawin Charnvirakul / Managing Director
    Tel.: +66 (0) 2260 1181   Fax : +66 (0) 2260 1182
    Email : mc@stpi.co.th
  2. Mr. Kitti Junsangsri / Marketing & Estimation Manager
    Tel. : +66 (0) 2260 1181   Fax : +66 (0) 2260 1182
    Email : kitti@stpi.co.th