Tu Van Moi Truong Va Chuyen Giao Cong Nghe Lang Son Joint Stock Company Address: No 11, Lane 13, My Son Street, Vinh Trai Ward, Lang Son City, Lang Son Province Enterprise code: 4900829541 Phone: 01664454898; 0364454898 Representative: To Quang Long Vinh Trai Ward, Lang Son City, Lang Son ProvinceFounding date: 13 - 6 - 2018