Long Tuan LTD Address: No 37a, Hung Vuong Street, Chi Lang Ward, Lang Son City, Lang Son Province Enterprise code: 4900207928 Phone: 02053210907 Representative: Nguyen Quoc Tuan Adress: No 37a, Hung Vuong Street, Chi Lang Ward, Lang Son City, Lang Son Province Chi Lang Ward, Lang Son City, Lang Son ProvinceFounding date: 28 - 3 - 2001