Dau Tu O To Dong Nam Joint Stock Company Address: O 20, BT 5 Do Thi Phap Van Tu Hiep, Hoang Liet Ward, Hoang Mai District, Ha Noi City Enterprise code: 0108006543 Phone: 0983391138 Representative: Dinh Doan Hung Hoang Liet Ward, Hoang Mai District, Ha Noi CityFounding date: 29 - 9 - 2017