Tu Van Xay Dung Hoang Gia Joint Stock Company Address: No 1, Lane 30, Nguyen Thi Dinh Street, Trung Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0500574309 Phone: 02433811173 Representative: Nguyen Ba Hung Adress: G1 Tong Cong Ty XD, PTHT Thanh Xuan Nam, Thanh Xuan District, Ha Noi City Trung Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 18 - 12 - 2007