Sand Group Joint Stock Company Address: 10th Floor, Van Phong Intracom Building, Phuc Dien Ward, Bac Tu Liem District, Ha Noi City Enterprise code: 0108401744 Phone: 0989397887 Representative: Dang Van Dung Phuc Dien Ward, Bac Tu Liem District, Ha Noi CityFounding date: 13 - 8 - 2018