Toa Road Corporation engages in civil engineering business in Japan. The company constructs road networks and transportation infrastructure, such as expressways and national roads, as well as paving on bridges and tunnels; and enhances aged infrastructure. It also undertakes civil works, including airport projects and civil construction parts of the road projects, as well as super express, railway container yard, photovoltaic power generation, and regional contribution and disaster recovery projects. In addition, the company manufactures and sells asphalt emulsion for roads, railways, landscape, and sports facilities; asphalt mixtures; polymer modified asphalt for heavy traffic roads, porous asphalt pavements, bridge deck pavements, and cold regions; and pavement materials for various applications, such as garages and bridges. Further, it provides pavement materials for various landscaping locations comprising historical places and parks; and sports pavement materials for use in running tracks, baseball stadiums, tennis courts, bicycle racetracks, and others. Additionally, the company conducts surveying/cleaning of soil pollution; designs and builds various underground reservoirs; demolishes buildings, factories, chimneys, etc. for redevelopment projects; and provides road maintenance plans that integrate pavement maintenance techniques comprising planning, inspection/diagnosis, performance evaluation/forecasting, maintenance/rehabilitation design, etc. with asset management. The company was founded in 1930 and is headquartered in Tokyo, Japan.