O To Vietvoiz My Dinh Joint Stock Company Address: No 181 Dinh Thon, My Dinh 1 Ward, Nam Tu Liem District, Ha Noi City Enterprise code: 0106223870 Phone: 02485854031 Representative: Nguyen Sy Quyen Adress: 5 Cum 1 Civil Group, Khuong Dinh Ward, Thanh Xuan District, Ha Noi City My Dinh 1 Ward, Nam Tu Liem District, Ha Noi CityFounding date: 9 - 7 - 2013