Thuong Mai Dich Vu Tin Hoc D&D Joint Stock Company Address: No 209, Cao Thang Street, Cao Thang Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701657970 Phone: 0912182569 Representative: To Hai Dang Adress: Tan Quang Street, Nha Nam Town, Tan Yen District, Bac Giang Province Cao Thang Ward, Ha Long City, Quang Ninh ProvinceFounding date: 4 - 10 - 2012