Dau Tu Phat Trien Cong Nghe TST Joint Stock Company Address: 4th Floor SN 61/25, Vu Ngoc Phan Street, Lang Ha Ward, Lang Ha Ward, Dong Da District, Ha Noi City Enterprise code: 0103488808 Phone: 02462755441 Representative: Vu Cao Trinh Adress: Hamlet 7, Vu Lac Commune, Kien Xuong District, Thai Binh Province Lang Ha Ward, Dong Da District, Ha Noi CityFounding date: 9 - 3 - 2009