MTV Long Duyen LTD Address: No 24, Luong Van Can Street, Hoang Van Thu Ward, Lang Son City, Lang Son Province Enterprise code: 4900888226 Phone: 0967219520 Representative: Vu Thi Duyen Adress: Hamlet 2, Van Son Commune, Trieu Son District, Thanh Hoa Province Hoang Van Thu Ward, Lang Son City, Lang Son ProvinceFounding date: 28 - 6 - 2022