Cong Nghe Vien Thong Va Dich Vu Ban Mai Xanh LTD Address: No 25/45 Dinh Tien Hoang, Hoang Van Thu Ward, Hong Bang District, Hai Phong City Enterprise code: 0201777043 Phone: 02253558586 Representative: Hoang Xuan Hoa Adress: No 3/14 Hoang Dieu, Minh Khai Ward, Hong Bang District, Hai Phong City Hoang Van Thu Ward, Hong Bang District, Hai Phong CityFounding date: 21 - 3 - 2017