Truyen Thong & Cong Nghe The Mastro Joint Stock Company Address: No 2, Do Duc Duc Street, Nha A7, Me Tri Ward, Nam Tu Liem District, Ha Noi City Enterprise code: 0109818636 Phone: 0812288833 Representative: Vu Viet Anh Me Tri Ward, Nam Tu Liem District, Ha Noi CityFounding date: 16 - 11 - 2021