Dau Tu Xay Dung Khoang San Son Ha Tay Bac Joint Stock Company Address: Tieu Khu 2, Co Noi Commune, Mai Son District, Son La Province Enterprise code: 5500550480 Phone: 0984474779 Representative: Nguyen Duy Hien Co Noi Commune, Mai Son District, Son La ProvinceFounding date: 24 - 4 - 2017