Ha Tang Vien Thong Mien Bac LTD Address: O Dat So 79, Lot TT-2, Khu Tai Dinh Cu (Lot 7.3 VA 8.1), Nam Tu Liem District, Ha Noi City Enterprise code: 0104547936 Phone: 02466746260 Representative: Vu Thi Giang Huong Nam Tu Liem District, Ha Noi CityFounding date: 19 - 3 - 2010