Tap Doan Hoang Gia Bac Trung Nam Joint Stock Company Address: No 21, 195 Minh Khai Lane, Bach Mai Ward, Hai Ba Trung District, Ha Noi City Enterprise code: 0111409415 Phone: 0964761666; Representative: Dao Thi Thao Bach Mai Ward, Dong Da District, Ha Noi CityFounding date: 12 - 3 - 2026