Dong Nai Port Joint Stock Company is a Vietnam-based company involved in marine port operations and management. The Company is also engaged in the provision of marine port services, such as cargo loading and unloading services, warehousing services, vessel supply services and freight forwarding services. It provides transportation equipment repair services and marine agency services, as well as trades petroleum products. Other activities include the operation of duty free shops and clubs for ship crew, along with port construction. As of December 31, 2011, the Company was a 51%-owned subsidiary of Corporation for The Development of Bien Hoa Industrial Zone (Sonadezi Bienhoa), and it had three affiliates.