Phat Trien Thuong Mai Va Cong Nghe Vien Thong LTD Address: 67/4a, Ly Thuong Kiet Street, Tran Hung Dao Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101009739 Phone: 0248518580 Tran Hung Dao Ward, Hoan Kiem District, Ha Noi CityFounding date: 25 - 5 - 2000