Song Da Corporation - Joint Stock Company is a Vietnam-based company primarily engaged in the construction and engineering sector. The Company's main business activities include the construction of civil engineering projects, such as roads, bridges, hydroelectric power plants, tunnels, industrial infrastructure and civil buildings; the collection of road, bridge and tunnel tolls; the generation of hydro electric power; the leasing of office spaces, warehouses and vacant land, and the manufacture of industrial components, parts and equipment.