Thuong Mai Van Tai Ruby Joint Stock Company Address: No 399, Hoang Hoa Tham Street, Lieu Giai Ward, Ba Dinh District, Ha Noi City Enterprise code: 0106160211 Phone: 02437521575 Representative: Tran Thi Mai Lien Adress: No 399, Hoang Hoa Tham Street, Lieu Giai Ward, Ba Dinh District, Ha Noi City Lieu Giai Ward, Ba Dinh District, Ha Noi CityFounding date: 24 - 4 - 2013