Thuong Mai Va Dich Vu Duc Nguyen Khang Joint Stock Company Address: No 5, Civil Group 21, Nghia Do Ward, Cau Giay District, Ha Noi City Enterprise code: 0105265853 Phone: 02437531514 Representative: Le Thi Quynh Huong Adress: No 5, Civil Group 21, Nghia Do Ward, Cau Giay District, Ha Noi City Nghia Do Ward, Cau Giay District, Ha Noi CityFounding date: 19 - 4 - 2011