Dien Tu Va Vien Thong Hoang Anh LTD Address: No 55 Hang Bo, Hang Bo Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101955542 Phone: 0248287480 Representative: Nguyen Hoang Kim Adress: No 55 Hang Bo, Hang Bo Ward, Hoan Kiem District, Ha Noi City Hang Bo Ward, Hoan Kiem District, Ha Noi CityFounding date: 31 - 5 - 2006