Dau Tu Xay Dung Va Thuong Mai Bac Hoang Long Joint Stock Company Address: No 142 B4, Dai Kim Urban Area, Dai Kim Ward, Hoang Mai District, Ha Noi City Enterprise code: 0103973515 Phone: 02422124790 Representative: Nguyen Quang Hiep Adress: 319, Nguyen Khang Street, Cau Giay District, Ha Noi City Dai Kim Ward, Hoang Mai District, Ha Noi CityFounding date: 19 - 6 - 2009