Dong Do Quang Ninh Joint Stock Company Address: Civil Group 7, Khu 1, Bai Chay Ward, Ha Long City, Quang Ninh Province Enterprise code: 5700643076 Phone: 0989147399 Representative: Pham Van Tu Adress: 100, Nguyen Trai Street, Nguyen Trai Ward, Hai Duong City, Hai Duong Province Bai Chay Ward, Ha Long City, Quang Ninh ProvinceFounding date: 3 - 4 - 2007