Hop Tac Xa Tuan Ngoc Address: Cau A Hamlet, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200800820 Phone: 0973322887 Representative: Ngo Van Tuan Adress: Thon, Triu Village, Trung Tam Commune, Luc Yen District, Yen Bai Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 22 - 10 - 2013