Giao Duc Mainspring LTD Address: 69, Street No 2, Ward 16, Go Vap District, Ho Chi Minh City Enterprise code: 0310678980 Phone: 02839160460 Representative: Dau Thi Hoai Thanh Adress: 1/16 Thang Long, Ward 4, Tan Binh District, Ho Chi Minh City Ward 16, Go Vap District, Ho Chi Minh CityFounding date: 10 - 3 - 2011