Bat Dong San Tam Son Joint Stock Company Address: 4D, Van Phong 705 Lac Long Quan Building, Phuong, Tay Ho District, Ha Noi City Enterprise code: 0111527930 Phone: 0911668899 Representative: Vu Duc Binh Tay Ho Ward, Cau Giay District, Ha Noi CityFounding date: 5 - 6 - 2026