Yamau Holdings Co Ltd

Operating from its headquarters in Fukuoka City, Japan, Yamau Holdings Co., Ltd. is a diversified Japanese enterprise, established in 1958. Known as Yamau Corporation until its rebranding in 2021, the company's core business involves the manufacturing and distribution of concrete products. Beyond this, its extensive activities encompass the full lifecycle of water gates and weirs, including their production, construction, and maintenance. Yamau Holdings further offers specialized geological surveys, expert consulting, and comprehensive civil engineering services. It is also actively involved in the inspection, investigation, and repair of concrete infrastructure, alongside the provision of sales and upkeep for office information technology. A significant part of its work includes the fabrication, supply, and installation of critical expansion joints for bridges and elevated roadways.