Buzzi Unicem USA recently announced that the U.S. Environment Protection Agency (EPA) and the U.S. Department of Energy (DOE) have awarded three of its cement manufacturing plants the ENERGY STAR® designation for their superior energy performance. Buzzi’s plants in Selma (MO), Maryneal (TX), and Chattanooga (TN) received the honor. This is the second consecutive year that these plants have been…