Dien Tu Tin Hoc Hoang Long LTD Address: No 4 Nguyen Van Troi, TK5, Hai Dinh Ward, Dong Hoi City, Quang Binh Province Enterprise code: 3100489460 Phone: 02323823676 Representative: Le Nguyen Hoang Adress: TK5, Hai Dinh Ward, Dong Hoi City, Quang Binh Province Hai Dinh Ward, Dong Hoi City, Quang Binh ProvinceFounding date: 25 - 8 - 2009