Cong Nghe Dich Vu 4.0 Joint Stock Company Address: No 62, Hang Bo Street, Hang Bo Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0109503121 Phone: 0911815591 Representative: Pham Thuy Duong Hang Bo Ward, Hoan Kiem District, Ha Noi CityFounding date: 20 - 1 - 2021