Vien Thong Sao Phuong Nam Joint Stock Company Address: 5th Floor So 18 Yen Ninh, Truc Bach Ward, Ba Dinh District, Ha Noi City Enterprise code: 0102110202 Phone: 0247151971 Representative: Nguyen Van Xue Adress: 23, 37 Day D1 Lane, Det Kim Dong Xuan Town, Hai Ba Trung District, Ha Noi City Truc Bach Ward, Ba Dinh District, Ha Noi CityFounding date: 15 - 12 - 2006