Vien Thong Hoang Kim Son La LTD Address: No 22a, Street 3/2, Civil Group 9, To Hieu Ward, Son La City, Son La Province Enterprise code: 5500673228 Phone: 02385966888 Representative: Pham Thi Phuong To Hieu Ward, Son La City, Son La ProvinceFounding date: 20 - 8 - 2025