Truyen Thong Dong Nam A Joint Stock Company Address: No 12, Lane 211/149, Khuong Trung Street, Khuong Trung Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0104572178 Phone: 02462962244 Representative: Do Viet Tien Adress: No 477 Khu C, Song Phuong Commune, Hoai Duc District, Ha Noi City Khuong Trung Ward, Thanh Xuan District, Ha Noi CityFounding date: 31 - 3 - 2010