Lien Doan Lao Dong Tinh Yen Bai Address: KM 6, Dinh Tien Hoang Street, Yen Thinh Ward, Yen Bai City, Yen Bai Province Enterprise code: 5200301194 Phone: 02163852469 Yen Thinh Ward, Yen Bai City, Yen Bai ProvinceFounding date: 22 - 12 - 2008