Cay Xanh Ngoc Hang Address: Dinh Lam Hamlet, Thinh Hung Commune, Yen Binh District, Yen Bai Province Enterprise code: 5200887701 Phone: 01689827296; 0389827296 Thinh Hung Commune, Yen Binh District, Yen Bai ProvinceFounding date: 30 - 3 - 2018