Truong Mam Non Bich Ngoc Address: Vu Cong Mat Street, Yen The Town, Luc Yen District, Yen Bai Province Enterprise code: 5200468281 Phone: 02163846988 Yen The Town, Luc Yen District, Yen Bai ProvinceFounding date: 13 - 10 - 2009