Thuong Mai Thiet Bi Vien Thong Ha Noi Joint Stock Company Address: No 4, Civil Group 20, Cluster 3, Tu Lien Ward, Tay Ho District, Ha Noi City Enterprise code: 0104526580 Phone: 02439938339 Representative: Khuat Thi Kim Chi Adress: P9B, B18 Yen Lang, Thinh Quang Ward, Dong Da District, Ha Noi City Tu Lien Ward, Tay Ho District, Ha Noi CityFounding date: 12 - 3 - 2010