Dau Tu Dich Vu Vien Thong HSV Joint Stock Company Address: No 5/447, Lac Long Quan Street, Xuan La Ward, Tay Ho District, Ha Noi City Enterprise code: 0107280751 Phone: 02039046899 Representative: Nguyen Quang Huy Adress: F12, Civil Group 57, Yen Hoa Ward, Cau Giay District, Ha Noi City Xuan La Ward, Tay Ho District, Ha Noi CityFounding date: 6 - 1 - 2016