QHDB Joint Stock Company Address: No 8C Ngo Van So, Tran Hung Dao Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0110118621 Phone: 0986122277 Representative: Do Duc Dat Adress: Civil Group 8, Ngoc Thuy Ward, Long Bien District, Ha Noi City Tran Hung Dao Ward, Hoan Kiem District, Ha Noi CityFounding date: 15 - 9 - 2022