Ngoc Son Address: No 68B, 3/2 Quyet Thang Street, Son La City, Son La Province Enterprise code: 5500256841 Phone: 0212859349 Representative: Nguyen Huu Son Adress: No 68B, 3/2 Quyet Thang Street, Son La City, Son La Province Son La City, Son La ProvinceFounding date: 13 - 10 - 2005