Cong Nghe Xay Dung Yen Son Joint Stock Company Address: No 3, Alley 31, Lane 22, Lua Street, Quyet Tien Civil Group, Van Phuc Ward, Ha Dong District, Ha Noi City Enterprise code: 0109875779 Phone: 0964476076 Representative: Nguyen Manh Hung Van Phuc Ward, Ha Dong District, Ha Noi CityFounding date: 31 - 12 - 2021