Tu Van Kien Truc Xay Dung Lang Son LTD Address: O So 16, Lot N12, Khu Tai Dinh Cu Va Dan Cu Nam Thanh Pho, Mai Pha Commune, Lang Son City, Lang Son Province Enterprise code: 4900206554 Phone: 02053811255 Representative: Tran Van Tin Adress: No 24, Ngo Van So Street, Hoang Van Thu Ward, Lang Son City, Lang Son Province Mai Pha Commune, Lang Son City, Lang Son ProvinceFounding date: 16 - 10 - 2000