Dau Tu Xay Lap Hoang Thanh Joint Stock Company Address: No 25, Lane 130, Doc Ngu Street, Vinh Phuc Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101647386 Phone: 02436417558 Representative: Dang Huu Binh Adress: Thuy Hoi Hamlet, Tan Hoi Commune, Dan Phuong District, Ha Noi City Vinh Phuc Ward, Ba Dinh District, Ha Noi CityFounding date: 9 - 5 - 2005