Song Da 7 Joint Stock Company is a Vietnam-based construction company. The Company constructs infrastructures, manufacturing buildings, power systems and water supply systems, as well as provides drilling services, engineering services, architectural services and interior decorating services. It is involved in the development and operation of small and medium-sized hydropower plants, along with electricity trading. It also manufactures and trades construction materials, concrete products and fabricated metal structures and components. Other activities include real estate operations, as well as the offering of transportation services and vehicle maintenance and repair services.