Cong Nghe Xanh Hoang Yen LTD Address: No 5, Civil Group 29, C31B, Khu Tap The Mai Dong, Mai Dong Ward, Hoang Mai District, Ha Noi City Enterprise code: 0107637112 Phone: 01677208601; 0377208601 Representative: Nguyen Viet Minh Adress: No 11, Gach Lane, Hang Buom Ward, Hoan Kiem District, Ha Noi City Mai Dong Ward, Hoang Mai District, Ha Noi CityFounding date: 16 - 11 - 2016