Hop Tac Truyen Thong Sao Mai LTD Address: 3rd Floor, MB Building, No 89, Bac Son Street, Hoang Van Thu Ward, Thai Nguyen City, Thai Nguyen Province Enterprise code: 4601581388 Phone: 0869709709 Representative: Vu Van Vung Hoang Van Thu Ward, Thai Nguyen City, Thai Nguyen ProvinceFounding date: 8 - 9 - 2021