Dau Tu Phat Trien He Thong Thong Tin Viet Nam Joint Stock Company Address: P703, 18T2 Building, Trung Hoa Urban Area, Nhan Chinh, Nhan Chinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0105793148 Phone: 0904001683 Representative: Do Duc Tho Adress: No 4, Quan Tho Ii Lane, Hang Bot Ward, Dong Da District, Ha Noi City Nhan Chinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 15 - 2 - 2012