Quan Ly Dau Tu Bluestone Viet Nam Joint Stock Company Address: No 149 Trung Kinh, Yen Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0106019184 Phone: 02435551939 Representative: Nguyen Thi Dung Adress: Nhuan Trach Hamlet, Van Thang Commune, Ba Vi District, Ha Noi City Yen Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 22 - 10 - 2012