Dau Tu Xay Dung Quang Sang LTD Address: No 193 Civil Group 45, Khuong Trung Street, Khuong Trung Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0101802828 Phone: 0915115357 Representative: Tran Hoai Nam Adress: No 1, A4, Tran Hung Dao Town, Hai Ba Trung District, Ha Noi City Khuong Trung Ward, Thanh Xuan District, Ha Noi CityFounding date: 25 - 10 - 2005