Tu Van & Nghien Cuu Vtoco LTD Address: 1st Floor, No 6, 189 Dong Cac Lane, O Cho Dua Ward, Dong Da District, Ha Noi City Enterprise code: 0105091117 Phone: 02439952775 Representative: Vu Thi Khiem Adress: No 28, Hang Voi Street, Ly Thai To Ward, Hoan Kiem District, Ha Noi City O Cho Dua Ward, Dong Da District, Ha Noi CityFounding date: 30 - 12 - 2010