Khai Khoang Thien An Joint Stock Company Address: 69, Linh Quang Lane, Van Chuong Ward, Dong Da District, Ha Noi City Enterprise code: 0101847924 Phone: 0245184150 Representative: Nguyen Van Thu Adress: 69, Linh Quang Lane, Van Chuong Ward, Dong Da District, Ha Noi City Van Chuong Ward, Dong Da District, Ha Noi CityFounding date: 30 - 12 - 2005