Dau Tu Phat Trien Yen Hung Joint Stock Company Address: Hong Thang Civil Group, Hong Ha Ward, Yen Bai City, Yen Bai Province Enterprise code: 5200929655 Phone: 0915472771 Representative: Pham Duc Thin Hong Ha Ward, Yen Bai City, Yen Bai ProvinceFounding date: 18 - 1 - 2022