Dau Tu Cong Nghe Va Xay Dung Ha Tang Joint Stock Company Address: No 48, Lane 6, Vu Huu Street, Nhan Chinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101235657 Phone: 02435532589 Representative: Truong Van Tan Adress: No 450, Lang Street, Lang Ha Ward, Dong Da District, Ha Noi City Nhan Chinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 9 - 5 - 2002