Viet Trinh Joint Stock Company Address: Quarter 2, Mau A Town, Van Yen District, Yen Bai Province Enterprise code: 5200395001 Phone: 02163836886 Representative: Nguyen Ba Quynh Adress: Binh Khe Town, Dong Trieu Town, Quang Ninh Province Mau A Town, Van Yen District, Yen Bai ProvinceFounding date: 1 - 6 - 2009