Cong Nghe Va Thuong Mai Van Khanh Joint Stock Company Address: Tho Son Hamlet, Yen Tho Commune, Dong Trieu Town, Quang Ninh Province Enterprise code: 5700895281 Phone: 0203871862 Representative: Dang Duc Tien Adress: Tho Son Hamlet, Yen Tho Commune, Dong Trieu Town, Quang Ninh Province Founding date: 9 - 7 - 2008