Khai Thac Tai Nguyen Cong Nghe Joint Stock Company Address: No 193 Ngo Gia Tu, Duc Giang Ward, Long Bien District, Ha Noi City Enterprise code: 0101500344 Phone: 0249143188 Representative: Nguyen Quang Vinh Adress: No 193 Ngo Gia Tu, Duc Giang Ward, Long Bien District, Ha Noi City Duc Giang Ward, Long Bien District, Ha Noi CityFounding date: 22 - 6 - 2004