May - Thiet Bi Dau Khi Mien Bac Viet Nam Joint Stock Company Address: No 8, Trang Thi Street, Hang Trong Ward, Hoan Kiem District, Ha Noi City Enterprise code: 0102578495 Phone: 02439347679 Representative: Tran Thanh Lam Adress: No 264, Le Trong Tan Street, Khuong Mai Ward, Thanh Xuan District, Ha Noi City Hang Trong Ward, Hoan Kiem District, Ha Noi CityFounding date: 28 - 12 - 2007