Dau Tu Va Phat Trien Cong Nghe The Ky 21 Joint Stock Company Address: 45, 3 Thang 2 Street, Ward 11, District 10, Ho Chi Minh City Enterprise code: 0313764331 Phone: 0909735882 Representative: Nguyen Thanh Hieu Adress: 197 Thai Phien, Ward 9, District 11, Ho Chi Minh City Ward 11, District 10, Ho Chi Minh CityFounding date: 19 - 4 - 2016