O To Tuan Ha Address: Khoi 9, Do Luong Town, Do Luong District, Nghe An Province Enterprise code: 2901779265 Phone: 0948643555 Representative: Nguyen Nhu Tuan Adress: Khoi 4, Do Luong Town, Do Luong District, Nghe An Province Do Luong Town, Do Luong District, Nghe An ProvinceFounding date: 3 - 4 - 2015