Dau Tu Phat Trien Cong Nghe Viettech Joint Stock Company Address: No 3B, Alley 40/1, To Vinh Dien Street, Khuong Trung Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0106453874 Phone: 0967558922 Representative: Nguyen Thi Huyen Adress: Phu Do Hamlet, My Dinh Commune, Tu Liem District, Ha Noi City Khuong Trung Ward, Thanh Xuan District, Ha Noi CityFounding date: 7 - 2 - 2014