Dich Vu Vien Thong Hoang Ha Mobile LTD Address: Hamlet 5, Ba Trai Commune, Ba Vi District, Ha Noi City Enterprise code: 0107954697 Phone: 0984326448 Representative: Phung Thi Hoai Linh Ba Trai Commune, Ba Vi District, Ha Noi CityFounding date: 10 - 8 - 2017