Dau Tu Phat Trien Cong Nghe Va Xuat Nhap Khau Thanh An Joint Stock Company Address: No 23, Lane 442, Vinh Hung Street, Vinh Hung Ward, Hoang Mai District, Ha Noi City Enterprise code: 0101511917 Phone: 0246446667 Representative: Nguyen Dinh Thanh Vinh Hung Ward, Hoang Mai District, Ha Noi CityFounding date: 27 - 7 - 2004