Doanh Nghiep TN Le Vi Un Address: Mai Ngap Hamlet, Chieng Sang Commune, Yen Chau District, Son La Province Enterprise code: 5500417016 Phone: 02126261022 Representative: Le Manh Hung Adress: Mai Ngap Hamlet, Chieng Sang Commune, Yen Chau District, Son La Province Chieng Sang Commune, Yen Chau District, Son La ProvinceFounding date: 25 - 2 - 2011