Xay Dung Lang Son 181 Joint Stock Company Address: Dong Ngau Hamlet, Cai Kinh Commune, Huu Lung District, Lang Son Province Enterprise code: 4900819977 Phone: 0971547111 Representative: Le Anh Dung Cai Kinh Commune, Huu Lung District, Lang Son ProvinceFounding date: 23 - 1 - 2018