Trung Vtam Boi Duong Chinh Tri Huyen Phu Yen Address: Khoi 5, Phu Yen Town, Phu Yen District, Son La Province Enterprise code: 5500354535 Phone: 02123863021 Phu Yen Town, Phu Yen District, Son La ProvinceFounding date: 20 - 3 - 2009