Tu Van Khoa Hoc Cong Nghe Thang Long Xanh Joint Stock Company Address: No 16 TT4C, Van Quan Urban Area, Phuc La Ward, Ha Dong District, Ha Noi City Enterprise code: 0106248441 Phone: 02433547985 Representative: Le Ngoc Long Adress: Yen Xa Hamlet, Tan Trieu Commune, Thanh Tri District, Ha Noi City Phuc La Ward, Ha Dong District, Ha Noi CityFounding date: 31 - 7 - 2013