Tu Van Thiet Ke Dau Tu Xay Dung 9 Joint Stock Company Address: No 02, Chu Van Thinh Street, Civil Group 3, To Hieu Ward, Son La City, Son La Province Enterprise code: 5500240104 Phone: 02123853460 Representative: Ho Manh Toan Adress: Civil Group 3, To Hieu Ward, Son La City, Son La Province To Hieu Ward, Son La City, Son La ProvinceFounding date: 13 - 6 - 2005