Xay Dung Dai Duong Address: Hamlet 4, Khoi 11, Hat Lot Town, Mai Son District, Son La Province Enterprise code: 5500403461 Phone: 02123745338 Representative: Do Trong Diem Adress: Hamlet 4, Khoi 11, Hat Lot Town, Mai Son District, Son La Province Hat Lot Town, Mai Son District, Son La ProvinceFounding date: 18 - 6 - 2010