Cong Nghe Va Phan Mem Periscope Joint Stock Company Address: No 3, 140/30/5, Vinh Hung Ward, Hoang Mai District, Ha Noi City Enterprise code: 0109374525 Phone: 0922121296 Representative: Dang Hoang Nam Adress: No 2 Le Van Thiem, Nhan Chinh Ward, Thanh Xuan District, Ha Noi City Vinh Hung Ward, Hoang Mai District, Ha Noi CityFounding date: 13 - 10 - 2020