Lien Doan Lao Dong Thanh Pho Yen Bai Address: Civil Group 66, Nguyen Thai Hoc Ward, Yen Bai City, Yen Bai Province Enterprise code: 5200440952 Phone: 02163865003 Nguyen Thai Hoc Ward, Yen Bai City, Yen Bai ProvinceFounding date: 7 - 7 - 2009