- Business
- Sumiken Mitsui Road Co., Ltd. engages primarily in pavement and road construction in Japan, including the design, construction, and supervision of pavements, roads, airports, harbors, living and community facilities; landscaping; civil engineering works; building construction; and electricity and plumbing works. The company manufactures, sells, and leases construction machinery; provides consulting services, security guard consignment, and buildings and facilities maintenance and management services; collects, transports, and treats general and industrial waste; manufactures and sells asphalt mixtures, aggregates, and other civil engineering and construction materials; acquires, manages, uses, disposes, leases, brokers, and sells real estate properties; conducts soil and groundwater contamination restoration and purification activities; and generates, supplies, and sells solar power. Founded in 1948 and headquartered in Tokyo, the company operates as a subsidiary of Sumitomo Mitsui Construction Co., Ltd., serving public infrastructure and private sector clients across Japan with a focus on sustainable civil engineering solutions. In its fiscal second quarter ended September 2025, Sumiken Mitsui Road reported revenue growth to Y13.58 billion from Y12.60 billion year-over-year alongside a narrowed net loss and quadrupled ordinary profit to Y192 million, reflecting improved operating margins amid stable demand for construction materials and services.