Thuong Mai Dich Vu O To Nam A Joint Stock Company Address: No 20, Lane 137, Khuat Duy Tien Street, Nhan Chinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0106396721 Phone: 02462817530 Representative: Pham Khac Thao Adress: Ngoc Dai Civil Group, Dai Mo Ward, Nam Tu Liem District, Ha Noi City Nhan Chinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 20 - 12 - 2013