Dau Tam To Tran Yen Joint Stock Company Address: Hamlet 5, Viet Thanh Commune, Tran Yen District, Yen Bai Province Enterprise code: 5200242728 Phone: 0216215389 Representative: Dang Hong Phuong Adress: Hamlet 5, Viet Thanh Commune, Tran Yen District, Yen Bai Province Viet Thanh Commune, Tran Yen District, Yen Bai ProvinceFounding date: 5 - 8 - 2005