Dau Tu Va Phat Trien Ha Tang Mien Nui Joint Stock Company Address: No 13, Le Hong Phong Street, Tam Thanh Ward, Lang Son City, Lang Son Province Enterprise code: 4900594635 Phone: 0978523666 Representative: Nguyen Van Tu Adress: No 266, Bac Son Street, Hoang Van Thu Ward, Lang Son City, Lang Son Province Tam Thanh Ward, Lang Son City, Lang Son ProvinceFounding date: 21 - 6 - 2010