Vien Thong Tam Duc LTD Address: No 10, 885 Tam Trinh Lane, Yen So Ward, Hoang Mai District, Ha Noi City Enterprise code: 0107947675 Phone: 0363509995 Representative: Pham Nhu Hien Yen So Ward, Hoang Mai District, Ha Noi CityFounding date: 4 - 8 - 2017