Dau Tu Va Khai Thac Khoang San Viet Nam Joint Stock Company Address: No 74, Doc Ngu Street, Vinh Phuc Ward, Ba Dinh District, Ha Noi City Enterprise code: 0102197972 Phone: 0242782225 Representative: Le Minh Tu Adress: Tan Hoa Hamlet, Hop Tien Commune, Dong Hung District, Thai Binh Province Vinh Phuc Ward, Ba Dinh District, Ha Noi CityFounding date: 3 - 4 - 2007