Hai Van Son La LTD Address: Khoi 4, Phu Yen Town, Phu Yen District, Son La Province Enterprise code: 5500526819 Phone: 0973233669 Representative: Nguyen Thi Van Adress: Khoi 1, Phu Yen Town, Phu Yen District, Son La Province Phu Yen Town, Phu Yen District, Son La ProvinceFounding date: 13 - 11 - 2015