Cong Trinh Son Tinh LTD Address: No 13 Hang Than, Nguyen Trung Truc Ward, Ba Dinh District, Ha Noi City Enterprise code: 0101383630 Phone: 0249273140 Representative: Bui Quoc Hieu Adress: Hamlet 7, Quan Tinh Hamlet, Giang Bien Commune, Gia Lam District, Ha Noi City Nguyen Trung Truc Ward, Ba Dinh District, Ha Noi CityFounding date: 17 - 7 - 2003