Tu Van Dau Tu Va Truyen Thong Hoang Mai Joint Stock Company Address: 6th Floor, 21a Building, 158 Nguyen Khanh Toan Lane, Quan Hoa Ward, Cau Giay District, Ha Noi City Enterprise code: 0108331399 Phone: 0908242203 Representative: Pham Thi Phuong Thao Quan Hoa Ward, Cau Giay District, Ha Noi CityFounding date: 19 - 6 - 2018