Dau Tu Hoa Sen Vang Joint Stock Company Address: No 20 Le Van Linh, Hang Ma Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0309733820 Phone: 02437476473 Representative: Le Y Linh Hang Ma Ward, Hoan Kiem District, Ha Noi CityFounding date: 13 - 1 - 2010