Xay Dung Va Thuong Mai Hoang Yen Joint Stock Company Address: No 1, Lane 76, Vinh Hung Street, Vinh Hung Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101151333 Phone: 02436446894 Representative: Vo Xuan Sang Adress: No 1, Lane 76, Vinh Hung Street, Vinh Hung Ward, Hoang Mai District, Ha Noi City Vinh Hung Ward, Hoang Mai District, Ha Noi CityFounding date: 10 - 8 - 2001