STP&I Public Company Limited has vast experiences in the custom steel fabrication business for over 30 years,  in Chonburi and Rayong province.  STP&I operates itself with steel fabrication capacity of 50,000 ton per annum.Additionally, we are one of Thailand largest piping fabricators with capacity of 1,000,000 diameter-inches per annum and module assembly Yard with capacity of 30,000 ton per annum. STP&I has strong experience in design, supply and fabrication of complicated Steel Structure & General Steelwork according to Thai and International design codes and standards. Steel Structure & General Steelwork has been used for major products Power and Process Plants, Refinery Plants, Commercial Buildings,  Industrial Equipments, and Bridges.Moreover,  STP&I’s strengths is its capability to fablicate large built-up beam steel for huge infrastructure and heavy industry projects such as LNG Plant, power plants, oil refineries,  petrochemical plants, high-rise building, roof structure, bridges, elevated highway, and airports.