Phat Trien Truyen Thong Viet Nam Joint Stock Company Address: No 10, Dich Vong Street, Dich Vong Ward, Cau Giay District, Ha Noi City Enterprise code: 0101876957 Phone: 02437868018 Representative: Bui Thanh Mai Adress: Nam Trai Hamlet, Sai Son Commune, Quoc Oai District, Ha Noi City Dich Vong Ward, Cau Giay District, Ha Noi CityFounding date: 24 - 2 - 2006