Tu Van Va Xay Dung Mai Thanh Son La LTD Address: Khoi 7, Phu Yen Town, Phu Yen District, Son La Province Enterprise code: 5500526505 Phone: 0973021908 Representative: Pham Quang Duc Adress: Khoi 3, Phu Yen Town, Phu Yen District, Son La Province Phu Yen Town, Phu Yen District, Son La ProvinceFounding date: 5 - 11 - 2015