MTV 99 Bac Yen LTD Address: Tieu Khu 3, Bac Yen Town, Bac Yen District, Son La Province Enterprise code: 5500552350 Phone: 0343742379 Representative: Dang Xuan Bong Bac Yen Town, Bac Yen District, Son La ProvinceFounding date: 12 - 6 - 2017