Hoang Long Yen Bai LTD Address: Phu Yen Hamlet, Yen Bai Commune, Ba Vi District, Ha Noi City Enterprise code: 0107969083 Phone: 0976091268 Representative: Pham Doan Xuan Yen Bai Commune, Ba Vi District, Ha Noi CityFounding date: 18 - 8 - 2017