In Lang Son Joint Stock Company Address: Lot M3, Cong Nghiep Dia Phuong So 2 Cluster, Hop Thanh Commune, Cao Loc District, Lang Son Province Enterprise code: 4900101047 Phone: 02053812220 Representative: Doan Thi Tich Adress: Lane 2, My Son Street, Vinh Trai Ward, Lang Son City, Lang Son Province Hop Thanh Commune, Cao Loc District, Lang Son ProvinceFounding date: 11 - 9 - 1998