Topy Industries, Ltd. engages in the manufacture and sale of steel products, and automotive and construction machinery components. It operates through the following business segments: Steel, Automotive and Industrial Machinery Components, Power Generation and Others. The Steel segment includes general steel, deformed bars, flat bars, mast rail sections for forklifts, and universal mill plates with grooves. The Automotive and Industrial Machinery Components segment produces wheels for automotive, industrial, and construction use, press products, fasteners for industrial use, and products for construction machinery. The Power Generation segment generates electricity through coal-powered facilities. The Others segment includes wholesale power supplies, indoor and outdoor sign systems, synthetic micas, crawler robots and management of real estate leases and construction. The company was founded in October 1921 and is headquartered in Tokyo, Japan.