Tohoku Steel Co., Ltd. engages in the manufacture and sale of various types of special steel. It operates through the Special Steel and Real Estate Leasing segments. The Special Steel segment manufactures, processes, and sells heat-resistant steel and magnetic materials for automotive products; and handles machining and thermo-mechanical processes. The Real Estate Leasing segment rents out large commercial facilities and rental housing, and provides contract maintenance services. The company was founded by Kotaro Honda on April 20, 1937 and is headquartered in Shibata, Japan.