Cong Nghe Vien Thong Sao Mai LTD Address: No 395, Ngo Gia Tu Street, Duc Giang Ward, Long Bien District, Ha Noi City Enterprise code: 0101887518 Phone: 0248779188 Representative: Nguyen Manh Hung Adress: Hamlet 1, Lam Son Commune, Luong Son District, Hoa Binh Province Duc Giang Ward, Long Bien District, Ha Noi CityFounding date: 13 - 3 - 2006