Thuong Mai Dich Vu Va Vien Thong Sao Mai Joint Stock Company Address: No 25, Lot 3e Le Hong Phong, Dong Khe Ward, Ngo Quyen District, Hai Phong City Enterprise code: 0200843695 Phone: 02253720555 Representative: Nguyen Thi Dieu Huyen Adress: No 276, Lot 9, Dang Hai Ward, Hai An District, Hai Phong City Dong Khe Ward, Ngo Quyen District, Hai Phong CityFounding date: 24 - 11 - 2008