Duy Doan Address: Tieu Khu 10, Song Ma Town, Song Ma District, Son La Province Enterprise code: 5500478971 Phone: 02123837488 Representative: Vu Van Doan Adress: Tieu Khu 10, Song Ma Town, Song Ma District, Son La Province Song Ma Town, Song Ma District, Son La ProvinceFounding date: 22 - 4 - 2013