QC & Nghien Cuu Thi Truong Vien Thong Viet Nam Joint Stock Company Address: 23, 117 Thai Ha Lane, Trung Liet Ward, Dong Da District, Ha Noi City Enterprise code: 0101298992 Phone: 0245372445 Trung Liet Ward, Dong Da District, Ha Noi CityFounding date: 5 - 11 - 2002