Dau Tu Cong Nghe Thanh Do Joint Stock Company Address: No 20, Lane 163, Hong Ha Street, Phuc Xa Ward, Ba Dinh District, Ha Noi City Enterprise code: 0102745668 Phone: 0917273999 Representative: Nguyen Thanh Hien Adress: No 445, Hong Ha Street, Phuc Tan Ward, Hoan Kiem District, Ha Noi City Phuc Xa Ward, Ba Dinh District, Ha Noi CityFounding date: 15 - 5 - 2008