Dich Vu Vien Thong Hoang Tuan LTD Address: No 19, Tren Hamlet, Nhi Chau Hamlet, Ngoc Hoi Commune, Thanh Tri District, Ha Noi City Enterprise code: 0111451946 Phone: 0983833999 Representative: Hoang Van Tuan Ngoc Hoi Commune, Thanh Tri District, Ha Noi CityFounding date: 8 - 4 - 2026