Phat Trien Truyen Thong Thong Tin Viva Joint Stock Company Address: Yen Vinh Hamlet, Kim Chung Commune, Hoai Duc District, Ha Noi City Enterprise code: 0106659459 Phone: 0945846668 Representative: Nguyen Hong Duong Adress: Yen Vinh Hamlet, Kim Chung Commune, Hoai Duc District, Ha Noi City Kim Chung Commune, Hoai Duc District, Ha Noi CityFounding date: 9 - 10 - 2014