MTV Duong Gia Lang Son LTD Address: Ki Ot So 2, Than Thua Quy Street, Vinh Trai Ward, Lang Son City, Lang Son Province Enterprise code: 4900806946 Phone: 0986575899 Representative: Chu Thuy Ha Vinh Trai Ward, Lang Son City, Lang Son ProvinceFounding date: 23 - 3 - 2017