STP&I Public Company Limited has vast experiences in the custom steel fabrication business for over 30 years. 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 30,000 ton per annum. All of our facilities have located nearby the principal seaport of Thailand including Laem Chabang Seaport, Map Ta Phut Seaport and Sriracha Harbour, moreover, all the facilities are close to the main domestic markets which are convenient to transport products and raw materials both internal and external Thailand.

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 fabricate large built-up beam steel for huge infrastructure and heavy industry projects such as power plants, oil refineries, petrochemical plants, high-rise building, roof structure, bridges, elevated highways, and airports.