M.C.S. Steel Public Co., Ltd. is engaged in macnufacture and distributin of structural steel products for building construction. It provides steel planning, design, fabrication, erection, and related services. The company operates through two segments: Local and Overseas. M.C.S. Steel was founded by Naiyuan Chi on June 9, 1992 and is headquartered in Phra Nakhon Si Ayutthaya, Thailand.