M.C.S. Steel Public Company Limited, together with its subsidiaries, engages in the design, production, and distribution of structural steel products for building construction in Thailand, China, and Japan. The company fabricates high-rise steel structure buildings, power plants, bridges, and general steel works. It is also involved in welder training and real estate activities; engineering and design services for stockyards, built-up H and built-up columns; provision of parts; CNC auto drill line, fabrication, and welding services; and quality assurance, pre-assembly, shot blasing/painting, and transportation/stock services. The company exports its products to Japan and internationally. The company was formerly known as M.C.S. HOKOKU CO., LTD. and changed its name to M.C.S. Steel Public Company Limited in 2001. M.C.S. Steel Public Company Limited was incorporated in 1992 and is headquartered in Phra Nakhon Si Ayutthaya, Thailand.