Van Phong Dai Dien Cong Ty Co Phan Tu Van Quy Hoach Va Tham Dinh Gia Sba Tai Lang Son Address: 44 Phan Huy Chu, Khoi Cua Nam, Chi Lang Ward, Lang Son City, Lang Son Province Enterprise code: 0107455338-009 Phone: 0982956303 Chi Lang Ward, Lang Son City, Lang Son ProvinceFounding date: