Toa Road Corporation engages in the civil engineering business in Japan. It constructs road networks and transportation infrastructure, such as expressways and national roads, as well as paving on bridges and tunnels. The company 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, it 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, including garages and bridges. Further, the company 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, it 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 incorporated in 1930 and is headquartered in Tokyo, Japan.