Dau Tu Ha Tang Dang Quang Joint Stock Company Address: No 32a, Lane 108, Nguyen Trai Street, Thuong Dinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0104026186 Phone: 02436296366 Representative: Pham Duc Quynh Adress: Khu Truong Tieu Hoc, Phuong Dong Ward, Uong Bi City, Quang Ninh Province Thuong Dinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 3 - 7 - 2009