Dien Tu Topkey Viet Nam LTD Address: Van Phong 40, 4th Floor, No 380, Tran Street, Tu Son Ward, Tinh Bac Ninh, Viet Nam Enterprise code: 2301407836 Phone: 0862917608 Representative: Zi, Daoyi Tu Son Ward, Tu Son City, Bac Ninh ProvinceFounding date: 4 - 6 - 2026