Quang Cao Duong Son Viet Nam Joint Stock Company Address: Khu 4, Van Phu Ward, Viet Tri City, Phu Tho Province Enterprise code: 2600869733 Phone: 0913833565 Representative: Nguyen Manh Ha Van Phu Ward, Viet Tri City, Phu Tho ProvinceFounding date: 14 - 11 - 2012