Phat Trien Nen Tang Cong Nghe Giao Duc Viezon Joint Stock Company Address: No 234, Tay Son Street, Trung Liet Ward, Dong Da District, Ha Noi City Enterprise code: 0108904307 Phone: 02277860666 Representative: Le Anh Khiem Bui Thanh Dat Adress: Ha Hamlet, Cuu Cao Commune, Van Giang District, Hung Yen Province Trung Liet Ward, Dong Da District, Ha Noi CityFounding date: 19 - 9 - 2019