Thuong Mai, Tu Van Va Dich Vu Chau Au Joint Stock Company Address: No 3, Yen Thai, Hang Gai Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0101292207 Phone: 0248243247 Hang Gai Ward, Hoan Kiem District, Ha Noi CityFounding date: 14 - 10 - 2002