Tram Khuyen Nong Huyen Van Yen Address: Quarter 2, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200447669 Phone: 02163834004 Representative: Tran Thi Bich Hue Adress: Khu Ii, Mau A Town, Van Yen District, Yen Bai Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 23 - 7 - 2009