Thuong Mai Dich Vu Va Xay Dung T&T LTD Address: Phieng Ban 3, Bac Yen Town, Bac Yen District, Son La Province Enterprise code: 5500563070 Phone: 0978378259 Representative: Nguyen Van Tuan Bac Yen Town, Bac Yen District, Son La ProvinceFounding date: 25 - 1 - 2018