Topgis Viet Nam LTD Address: Hamlet 9, Hamlet 6, Song Phuong Commune, Hoai Duc District, Ha Noi City Enterprise code: 0105461304 Phone: 0987999870 Representative: Duong Thi Hang Adress: Hamlet 9, Hamlet 6, Song Phuong Commune, Hoai Duc District, Ha Noi City Song Phuong Commune, Hoai Duc District, Ha Noi CityFounding date: 23 - 8 - 2011