Truyen Thong Helen Joint Stock Company Address: No 23, A21 Nghia Tan, Nghia Tan Ward, Cau Giay District, Ha Noi City Enterprise code: 0107540449 Phone: 02466845111 Representative: Phan Thi Diep Adress: I15, Lang Ha Ward, Dong Da District, Ha Noi City Nghia Tan Ward, Cau Giay District, Ha Noi CityFounding date: 16 - 8 - 2016