Phat Trien Cong Nghe Truyen Thong Da Phuong Tien GVC Joint Stock Company Address: No 4 Hang Bai, Trang Tien Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0102256642 Phone: 0248267423 Representative: Nguyen Ngoc Hung Adress: No 57a Dinh Tien Hoang, Hang Bac Ward, Hoan Kiem District, Ha Noi City Trang Tien Ward, Hoan Kiem District, Ha Noi CityFounding date: 18 - 5 - 2007