Lien Doanh Mien Thue Lang Son Address: 209 Tran Dang Ninh, Tam Thanh Ward, Lang Son City, Lang Son Province Enterprise code: 4900150710 Phone: 0205878308 Representative: Trieu Tu Quyen Tam Thanh Ward, Lang Son City, Lang Son ProvinceFounding date: 4 - 9 - 1999