Tap Doan NTT Joint Stock Company Address: No 11, Ly Thuong Kiet Street, Phan Chu Trinh Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101245895 Phone: 02439331999 Representative: Vu Phuong Hung Adress: No 80, Civil Group 33, O Cho Dua Ward, Dong Da District, Ha Noi City Phan Chu Trinh Ward, Hoan Kiem District, Ha Noi CityFounding date: 29 - 5 - 2002