Vien Thong Tin Hoc Hoang Hai LTD Address: No 30 A, Trung Tien Lane, Kham Thien Street, Kham Thien Ward, Dong Da District, Ha Noi City Enterprise code: 0103029723 Phone: 0939798668 Representative: Dang Ngoc Hieu Adress: 217, Hue Street, Phuong, Hue Street, Hai Ba Trung District, Ha Noi City Kham Thien Ward, Dong Da District, Ha Noi CityFounding date: 27 - 11 - 2008