Dien Tu Vien Thong Duy Duc Joint Stock Company Address: No 291B, Bui Xuong Trach Street, Khuong Dinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0106082732 Phone: 0944435566 Representative: Tran Dinh Hien Adress: Cluster 11, Vinh Quynh Commune, Thanh Tri District, Ha Noi City Khuong Dinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 11 - 1 - 2013