Tu Van Va Xay Dung Hai Nam Son La Joint Stock Company Address: No 34, Lane 28, Heo Hamlet, To Hieu Ward, Son La City, Son La Province Enterprise code: 5500550385 Phone: 0975595952 Representative: Dinh Van Hai To Hieu Ward, Son La City, Son La ProvinceFounding date: 19 - 4 - 2017