Trinh Sang Address: No 3, Da Tuong Street, Yet Kieu Ward, Ha Long City, Quang Ninh Province Enterprise code: 5700615960 Phone: 0203823755 Representative: Nguyen Trinh Sang Adress: 13B Civil Group, Khu 2, Yet Kieu Ward, Ha Long City, Quang Ninh Province Yet Kieu Ward, Ha Long City, Quang Ninh ProvinceFounding date: 21 - 11 - 2006