Phat Trien Cong Nghe Va Dich Vu Vien Thong Hai Long LTD Address: No 429a, Bach Mai Street, Truong Dinh Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0105919263 Phone: 0963828881 Representative: Thach Hai Thoai Truong Dinh Ward, Hai Ba Trung District, Ha Noi CityFounding date: 20 - 6 - 2012