Truong Mam Non Xa Yen Thanh Address: Hamlet 2, Yen Thanh Commune, Yen Binh District, Yen Bai Province Enterprise code: 5200468884 Phone: 02398351061 Yen Thanh Commune, Yen Binh District, Yen Bai ProvinceFounding date: 13 - 10 - 2009