Duo - Viet Nam LTD Address: No 1045, Giai Phong Street, Thinh Liet Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101290513 Phone: 02436425109 Representative: Nguyen Anh Tuan Adress: Civil Group 5, Cluster 1, Nhat Tan Ward, Tay Ho District, Ha Noi City Thinh Liet Ward, Hoang Mai District, Ha Noi CityFounding date: 7 - 10 - 2002