Sonadezi Services Joint-Stock Company is a Vietnam-based company engaged in the environmental sanitation industry. In particular, it offers consultation services on environmental issues, as well as sewage and waste treatment services. It is also involved in the provision of restaurant services through its restaurant network located in industrial zones. In addition, it provides security services though its subsidiary, SDV Security Service Company Limited. Other services include advertising, organizing events, cleaning industrial and civil works, planting and care of trees, installing lighting and billboard systems, managing office and apartment buildings, as well as leasing offices and warehouses.