Vien Kiem Sat Nhan Dan Huyen Phu Yen Tinh Son La Address: Khoi 5, Phu Yen Town, Phu Yen District, Son La Province Enterprise code: 5500354260 Phone: 02123863246 Phu Yen Town, Phu Yen District, Son La ProvinceFounding date: 19 - 3 - 2009