Phat Trien Giai Phap Truc Tuyen DLH Joint Stock Company Address: No 15B/37, Dai Dong Street, Thanh Tri Ward, Hoang Mai District, Ha Noi City Enterprise code: 0105235489 Phone: 02435666472 Representative: Duong Van Diep Adress: No 1, Lane 10, Yen Xuan Street, Quan Bau Ward, Vinh City, Nghe An Province Thanh Tri Ward, Hoang Mai District, Ha Noi CityFounding date: 1 - 4 - 2011