Tong Lien Address: Ot Hamlet, Chieng Ban Commune, Mai Son District, Son La Province Enterprise code: 5500524307 Phone: 0945191539 Representative: Tong Van Lien Adress: Ot Hamlet, Chieng Ban Commune, Mai Son District, Son La Province Chieng Ban Commune, Mai Son District, Son La ProvinceFounding date: 22 - 9 - 2015