Xay Dung Va Phat Trien Phan Mem NKT Lang Son LTD Address: No 38, Lane 720, Ba Trieu Street, Dong Kinh Ward, Lang Son City, Lang Son Province Enterprise code: 4900883637 Phone: 02056266999 Representative: Nguyen Minh Tuan Dong Kinh Ward, Lang Son City, Lang Son ProvinceFounding date: 25 - 11 - 2021