Dv-Tm-Cong Nghe Vien Thong Hai Ngoc LTD Address: No 226 Yersin, Ward 9, Da Lat City, Lam Dong Province Enterprise code: 5801354747 Phone: 0919587373 Representative: Duong Thi Bich Ward 9, Da Lat City, Lam Dong ProvinceFounding date: 19 - 10 - 2017