Hop Tac Xa Son Tra Address: Civil Group 2, Mu Cang Chai Town, Mu Cang Chai Town, Mu Cang Chai District, Yen Bai Province Enterprise code: 5200603702 Phone: 02159878205 Representative: Doan Thi Phuong Adress: Civil Group 2, Mu Cang Chai Town, Mu Cang Chai District, Yen Bai Province Mu Cang Chai Town, Mu Cang Chai District, Yen Bai ProvinceFounding date: 14 - 1 - 2011