Thuong Mai Va Xay Dung Thanh Son LTD Address: No 28a, Ngo Quyen Street, Vinh Trai Ward, Lang Son City, Lang Son Province Enterprise code: 4900811752 Phone: 0965633138 Representative: Nguyen Thi Hanh Le Vinh Trai Ward, Lang Son City, Lang Son ProvinceFounding date: 19 - 7 - 2017