Thuong Mai Va Ky Thuat Hoang Mai LTD Address: No 369 Civil Group 25, Hoang Van Thu Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101290591 Phone: 0248635610 Representative: Nguyen Tien Yen Adress: No 369 Civil Group 25, Hoang Van Thu Ward, Hoang Mai District, Ha Noi City Hoang Van Thu Ward, Hoang Mai District, Ha Noi CityFounding date: 7 - 10 - 2002