Vien Thong Tu Trang LTD Address: Ca Hamlet, Tan Trao Commune, Son Duong District, Tuyen Quang Province Enterprise code: 5000898907 Phone: 0833130666 Representative: Do Ngoc Tu Tan Trao Commune, Son Duong District, Tuyen Quang ProvinceFounding date: 30 - 11 - 2023