Hong Ha Address: 33 La Van Cau, Hoan Kiem District, Ha Noi City Enterprise code: 0100254784 Phone: 0248631219 Representative: Doan Thi Thanh Duc Adress: 179 Bui Thi Xuan, Hai Ba Trung District, Ha Noi City Hoan Kiem District, Ha Noi CityFounding date: 23 - 6 - 1998