Thuong Mai Va Dich Vu Ky Thuat H.T.C LTD Address: No 56, Nguyen Khang Street, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0101694442 Phone: 0247845315 Representative: Do Van Tu Adress: Trung Ha Hamlet, Kim Quan Commune, Thach That District, Ha Noi City Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 30 - 6 - 2005