Kinh Doanh Vang Quoc Thang Joint Stock Company Address: No 389 Kim Ma, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Enterprise code: 0103717261 Phone: 02437847059 Representative: Nguyen Quoc Thang Adress: No 3, I 20B Thanh Cong, Lang Ha Ward, Dong Da District, Ha Noi City Ngoc Khanh Ward, Ba Dinh District, Ha Noi CityFounding date: 18 - 4 - 2009