Dich Vu Vien Thong Duy Tan LTD Address: No 286 Le Duan, Bac Son Ward, Kien An District, Hai Phong City Enterprise code: 0201306710 Phone: 02256565656 Representative: Nguyen Duy Tan Adress: Khu 4, Bac Son Ward, Kien An District, Hai Phong City Bac Son Ward, Kien An District, Hai Phong CityFounding date: 31 - 7 - 2013