Phat Trien Cong Nghe Best-Sl Joint Stock Company Address: No 72, Chu Van Thinh Street, Civil Group 1, To Hieu Ward, Son La City, Son La Province Enterprise code: 5500447349 Phone: 02123853367 Representative: Nguyen Thu Ha Adress: Civil Group 12, Chieng Le Ward, Son La City, Son La Province To Hieu Ward, Son La City, Son La ProvinceFounding date: 24 - 2 - 2012