Truong Mam Non Yen Thinh Address: Civil Group 27, Yen Thinh Ward, Yen Bai City, Yen Bai Province Enterprise code: 5200331939 Phone: 02163851719 Adress: Yen Bai City, Yen Bai Province Yen Thinh Ward, Yen Bai City, Yen Bai ProvinceFounding date: 9 - 3 - 2009