Dau Tu Va San Xuat Ce – Chi Nhanh Lang Son Joint Stock Company Address: Khuoi Ngan, Khe Dam Hamlet, Thai Binh Commune, Tinh Lang Son, Viet Nam Enterprise code: 0318236039-003 Phone: 0975781190 Representative: Nguyen Anh Tuan Lang Son ProvinceFounding date: 4 - 12 - 2025