- Business
- Koatsu Kogyo Co., Ltd. designs, constructs, and supervises prestressed concrete bridges, tanks, and foundation works in the civil engineering and construction sector in Japan. The company operates through Construction Business; Concrete Product Business, including manufacturing and sales of concrete products and leasing of concrete product formworks for blocks; Real Estate Business, involving leasing and sale of properties; and Electricity Sales Business, generating and selling solar power; with primary operations concentrated in the Kyushu region. Founded prior to its listing and headquartered at 5-17-5 Ishiki, Kagoshima 890-0008, Japan, Koatsu Kogyo focuses on infrastructure development for bridges, highways, and railways using prestressed concrete technologies. In August 2025, Uemura Co., Ltd. proposed a tender offer to acquire a 69.96% stake from shareholders for approximately ¥2.9 billion, marking a significant management buyout development; the company also reported strong third-quarter fiscal year 2025 results in June 2025, with revenue up 14.0% and operating profit up 68.9% year-over-year driven by high-margin construction projects.