Vien Thong Hoang Ngan Joint Stock Company Address: No 43 Dinh Cong, Phuong Liet Ward, Ha Noi Town, Viet Nam, Ha Noi City Enterprise code: 0111283018 Phone: 0985352220 Representative: Luong Thi Toan Ha Noi CityFounding date: 13 - 11 - 2025