Xay Dung Ky Thuat Ha Tang Bac Ha Joint Stock Company Address: No 5B, Lane 67, Nam Du Street, Linh Nam Ward, Hoang Mai District, Ha Noi City Enterprise code: 0102568659 Phone: 0247611185 Representative: Vu Trong Thuan Adress: Civil Group 2, Linh Nam Ward, Hoang Mai District, Ha Noi City Linh Nam Ward, Hoang Mai District, Ha Noi CityFounding date: 20 - 12 - 2007