Truyen Thong Vinamap LTD Address: No 26a Hang Duong, Hang Dao Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101447556 Phone: 0247323758 Representative: Vu Van Vien Adress: No 26a Hang Duong, Hang Dao Ward, Hoan Kiem District, Ha Noi City Hang Dao Ward, Hoan Kiem District, Ha Noi CityFounding date: 4 - 3 - 2004