Dau Tu Va Xay Dung Ngoc Son LTD Address: Trung Quan Hamlet, Yen Thuong Commune, Gia Lam District, Ha Noi City Enterprise code: 0101797039 Phone: 0248784106 Representative: Nguyen Dang Ngoc Adress: Trung Quan Hamlet, Yen Thuong Commune, Gia Lam District, Ha Noi City Yen Thuong Commune, Gia Lam District, Ha Noi CityFounding date: 19 - 10 - 2005