Tu Van Xay Dung, Dao Tao Va Dia Ky Thuat Dong A Joint Stock Company Address: No 11, Lane 40, Linh Nam Street, Mai Dong Ward, Hoang Mai District, Ha Noi City Enterprise code: 0105570399 Phone: 02435403560 Representative: Nguyen Van Giang Adress: No 5, Cu Chinh Lan Street, Khuong Mai Ward, Thanh Xuan District, Ha Noi City Mai Dong Ward, Hoang Mai District, Ha Noi CityFounding date: 14 - 10 - 2011