Cong Nghe Vien Thong Opto-Link LTD Address: No 9, Lane 16, Van Phu Street, Phu La Ward, Ha Dong District, Ha Noi City Enterprise code: 0108608548 Phone: 0976905368 Representative: Nguyen Thi Tuyet Nhung Phu La Ward, Ha Dong District, Ha Noi CityFounding date: 31 - 1 - 2019