Tu Van Va Cong Nghe HTL Joint Stock Company Address: No 108 Ton Duc Thang, Quoc Tu Giam Ward, Dong Da District, Ha Noi City Enterprise code: 0101797575 Phone: 0242191988 Representative: Ta Ngoc Tuyen Adress: Nha 561B, Doan Ket Street, Ninh Phong Ward, Ninh Binh City, Ninh Binh Province Quoc Tu Giam Ward, Dong Da District, Ha Noi CityFounding date: 19 - 10 - 2005