May - Cong Nghe - Vat Lieu LTD Address: No 107, Nguy Nhu Kon Tum Street, Nhan Chinh Ward, Thanh Xuan District, Ha Noi City Enterprise code: 0100956342 Phone: 0245572009 Representative: Le Nguyen Chien Adress: No 1a, Ngoc Khanh Street, Ngoc Khanh Ward, Ba Dinh District, Ha Noi City Nhan Chinh Ward, Thanh Xuan District, Ha Noi CityFounding date: 21 - 12 - 1999