Xay Dung Hung Son Address: 31, Tieu Khu 20, Hat Lot Town, Mai Son District, Son La Province Enterprise code: 5500210075 Phone: 0212843166 Representative: Nguyen Ngoc Can Adress: No 31 Tieu Khu 20, Hatlot Town, Mai Son District, Son La Province Hat Lot Town, Mai Son District, Son La ProvinceFounding date: 24 - 3 - 2003