Dang Khoa Joint Stock Company Address: No 8, Phung Hung Street, Hang Ma Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101311724 Phone: 0249272720 Representative: Nguyen Quang Tung Adress: No 8, Phung Hung, Hang Ma Ward, Hoan Kiem District, Ha Noi City Hang Ma Ward, Hoan Kiem District, Ha Noi CityFounding date: 12 - 12 - 2002