Tram Khuyen Nong Address: Son Thinh Commune, Van Chan District, Yen Bai Province Enterprise code: 5200307171 Phone: 02163874059 Representative: Nguyen Tien Lam Adress: Son Thinh Commune, Van Chan District, Yen Bai Province Son Thinh Commune, Van Chan District, Yen Bai ProvinceFounding date: 7 - 1 - 2009