Vien Thong So Ha Noi Joint Stock Company Address: No 19, Lane 151, Nguyen Kha Trac Street, Mai Dich Ward, Cau Giay District, Ha Noi City Enterprise code: 0106563323 Phone: 0963561539 Representative: Nguyen Thi Hien Adress: Hamlet 9, Phuc Son Commune, Anh Son District, Nghe An Province Mai Dich Ward, Cau Giay District, Ha Noi CityFounding date: 6 - 6 - 2014