Duc Trung Bac Son Joint Stock Company Address: No 26, Khoi, Le Hong Phong Street, Bac Son Town, Bac Son District, Lang Son Province Enterprise code: 4900844807 Phone: 0913314468 Representative: Mai Van Nhan (Mai Thanh Tuan) Bac Son Town, Bac Son District, Lang Son ProvinceFounding date: 1 - 3 - 2019