Phat Trien Giao Duc Tan Tien Joint Stock Company Address: 36 Khu 3 Civil Group, Cao Xanh Ward, Ha Long City, Quang Ninh Province Enterprise code: 5701382109 Phone: 02033827575 Representative: Pham Thi Ngoc Bich Adress: 50 Khu 6 Civil Group, Hong Gai Ward, Ha Long City, Quang Ninh Province Cao Xanh Ward, Ha Long City, Quang Ninh ProvinceFounding date: 12 - 4 - 2010