Van Phong Dai Dien Lang Son - Cong Ty TNHH Du Hoc Hoa Ngu Address: No 54, My Son Street, Vinh Trai Ward, Lang Son City, Lang Son Province Enterprise code: 0109812024-001 Phone: 0915325383 Representative: Hoang Nguyet Minh Vinh Trai Ward, Lang Son City, Lang Son ProvinceFounding date: 29 - 3 - 2022