- CEO
- Hisashi Kubota
- Full Time Employees
- 285
- Sector
- Producer manufacturing
- Industry
- Metal fabrication
- Address
- 2-1 Shiraishicho Kawasaki KN Japan 210-9567
- IPO Date
- Oct 2, 1961
- Business
- Nippon Chuzo K.K. (TSE: 5609) manufactures and sells steel and iron castings, engineering products, and construction materials primarily in Japan. The company operates through three main divisions: Castings, which supplies large castings, special castings such as low thermal expansion LEX and LEX-ZERO alloys, cast iron products, construction machinery components including oversize hydraulic excavator parts and mighty bars (MB), energy system turbine housings, waste incineration fire grates, industrial press components, iron production screens and plugs, casting systems like rotary reclaimers, hydraulic components, metal molds, stainless steel products, and gears; Engineering, which provides bridge bearings including pot bearings (BP-B), spherical bearings (BP-A), line bearings (LB), horizontal bearings, rubber bearings such as super high-damping rubber bearings (HDR-S and THD), horizontal force dispersing rubber bearings (NR), and disc rubber bearings (DRB), as well as expansion joints like Maurer swivel and Maurer joints, damper units including lens type shear panel dampers (LSD) and cylinder type viscous dampers (NES-D); and Construction Materials, which offers steel structural members, cable bands, saddles, construction hardware and landscaping products, joining brackets such as square to round joints and NC nodes, joining pins, and fixed pedestal materials like NC base plates for steel pipe columns. Nippon Chuzo serves industries including construction, infrastructure, energy, mining, semiconductor and LCD production, space and defense, and heavy machinery, with target customers encompassing bridge and building projects, heavy equipment manufacturers like Hitachi Construction Machinery, and industrial facilities. Founded on September 1, 1920, and headquartered at 2-1 Shiraishicho, Kawasaki-ku, Kawasaki City, Japan, the company maintains additional offices in Osaka, Kyushu (Fukuoka), and Yokohama, as well as factories in Kawasaki and Fukuyama works. Recent developments include the establishment of a Shanghai representative office in May 2024 to expand overseas operations, the commissioning of a 10-ton high-frequency induction furnace at Fukuyama works in August 2024 to enhance casting capacity, the opening of a Yokohama office in April 2025, and the absorption-type merger with subsidiary Datto Co., Ltd. completed on July 1, 2025, to streamline group structure.