Lien Doan Lao Dong Thanh Pho Lang Son Address: No 30 Le Loi, Vinh Trai Ward, Lang Son City, Lang Son Province Enterprise code: 4900834492 Phone: 02053875507 Representative: Nguyen Ba Khoa Adress: Khu DTPL 3, Hoang Van Thu Ward, Lang Son City, Lang Son Province Vinh Trai Ward, Lang Son City, Lang Son ProvinceFounding date: 20 - 8 - 2018