Cong Nghe Vien Thong D&B Joint Stock Company Address: No 31, 158 Nguyen Khanh Toan Lane, Quan Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0105934938 Phone: 02032570714 Representative: Nguyen Quang Tuan Quan Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 4 - 7 - 2012