Truyen Thong Cong Nghe Sao Mai Joint Stock Company Address: 18a Nam Quoc Cang, Pham Ngu Lao Ward, District 1, Ho Chi Minh City Enterprise code: 0305337752 Phone: 02854042138 Representative: Vu Ngoc Hung Adress: 245B Nguyen Trai, Nguyen Cu Trinh Ward, District 1, Ho Chi Minh City Pham Ngu Lao Ward, District 1, Ho Chi Minh CityFounding date: 4 - 12 - 2007