Tin Hoc Hoang Trong An LTD Address: No 6, 896/60 Nguyen Khoai Alley, Vinh Hung Ward, Hoang Mai District, Ha Noi City Enterprise code: 0111557156 Phone: 0912206243 Representative: Hoang Hoai Nam Vinh Hung Ward, Hoang Mai District, Ha Noi CityFounding date: 2 - 7 - 2026