Thanh Do Joint Stock Company Address: Civil Group 4, Khoi 5, Cao Loc Town, Cao Loc District, Lang Son Province Enterprise code: 4900225821 Phone: 02145861686 Representative: Vu Quoc Tai Adress: No 15, Gieng Tien, Chi Lang Ward, Lang Son City, Lang Son Province Cao Loc Town, Cao Loc District, Lang Son ProvinceFounding date: 10 - 3 - 2004