Dau Tu Phat Trien Giao Duc Lang Son LTD Address: No 35, Phung Chi Kien, Hoang Van Thu Ward, Lang Son City, Lang Son Province Enterprise code: 4900885338 Phone: 0904442499 Representative: Vi Thi Chuyen Hoang Van Thu Ward, Lang Son City, Lang Son ProvinceFounding date: 12 - 1 - 2022