Phong Ld Thuong Binh Va XH Huyen Phu Yen Address: Khoi 5, Phu Yen Town, Phu Yen District, Son La Province Enterprise code: 5500354687 Phone: 02123763062 Phu Yen Town, Phu Yen District, Son La ProvinceFounding date: 20 - 3 - 2009