Phat Trien Tin Hoc Dai Duong LTD Address: No 94 Khoi 5, Bac Hong Ward, Hong Linh Town, Ha Tinh Province Enterprise code: 3000428827 Phone: 0239211866 Representative: Phan Dinh Duong Adress: Hong Linh Town, Ha Tinh Province Bac Hong Ward, Hong Linh Town, Ha Tinh ProvinceFounding date: 30 - 1 - 2008