- Business
- Nihon Kogyo Co., Ltd. manufactures, sells, transports, and installs secondary concrete products and related civil engineering materials primarily in Japan. The company produces a wide range of precast concrete items including box culverts, culverts, storage and disaster prevention systems, retaining walls, road products, underground electric wire protections, waterways, river and ocean structures, special concrete, and dam-related components used in roads, sewage, seawalls, fish reefs, disaster mitigation, and infrastructure maintenance such as highways, bridges, and tunnels; it also offers paving materials, park furniture, wood cleats, giseki products, disaster prevention items, exterior materials, litters, lifestyle and garden products, play bases, interior products, as well as civil engineering and block work services. Founded in 1945 and headquartered in Sanuki, Japan, Nihon Kogyo operates nationwide with a focus on civil engineering, landscape, exterior, and gardening segments serving public infrastructure, construction, and urban development projects. Recent developments include participation in the development of design lighting TALIESIN HOMAGE announced in December 2025, adoption of products such as Neuro Locking Block at NIKKO WORKS Wa-ken Kagawa Factory in December 2025, SS Stage for Hitachi City sidewalk works in November 2025, S-Line standpipe units for Yamazoe Construction in November 2025, and SAZARE Eco Aqua at Cherry Golf Zanki Course in November 2025; earlier, the company agreed to acquire an 80% stake in Hazuki Kogyo Co., Ltd. in 2022 and completed acquisition of the remaining 40% stake in NIC Co., Ltd. in 2021.