| 1975 | "STPRESS" was established for manufacturing steel structures and pressure vessels, located in Bangkok |
|---|---|
| 1990 | Changed company name to “Sino-Thai Pressure Vessel & Iron Works”, fabrication capacity 20,000 ton per annum of Steel Structure, Pressure Vessels and Boilers |
| 1994 | Moved to new plant in Chonburi, capacity 30,000 tons/annum |
| 1995 | Registered as a public company and changed name to "STP&I Public Company Limited." |
| 1997 | Obtained Certification to ISO9001 for Structural Steel Work |
| 1998 | Established Inter-IMC, a mechanical contractor, in Singapore |
| 1999 | Expanded to 2nd workshop in Rayong, capacity 20,000 tons/annum, total capacity 50,000 tons/annum |
| 2000 | Obtained Certification to ISO9001 for pipe spool fabrication shop |
| 2004 | Partnership with Clough (Thailand) Limited and established Clough Sino-Thai Company Limited (CST) for Module Fabrication at module yard located in Sattahip Navy Dockyard |
| 2007 | Established Module yard at Laem Chabang Port named "Laem Chabang Module Yard" |
| 2007 | Established a new pipe shop at Sriracha named "Sriracha Pipe Shop" |
STP&I recently focused on the international market and aggressively pursued pre-fabricated exports of structural steel, piping and module with exporting target over 20,000 tons per annum of pre-fabricated steel, pipe spool and module.