Son Duong Address: No 01a, Ngo Van So Street, Khoi 8, HVT Ward, Lang Son City, Lang Son Province Enterprise code: 4900225652 Phone: 0205860082 Representative: Nguyen Bich Phuong Adress: 259a, Tran Quang Khai, Chi Lang Ward, Lang Son City, Lang Son Province Lang Son City, Lang Son ProvinceFounding date: 2 - 3 - 2004