CORAL GABLES, Fla.–(BUSINESS WIRE)–MasTec, Inc. (NYSE: MTZ) today announced that it has closed its previously announced acquisition of Electrical Specialists, Inc., d/b/a The Superior Group (“Superior”), a premier full-service electrical contractor focused on critical infrastructure, in a cash and stock transaction valued at approximately $1.65 billion, subject to customary purchase price adjustments and a potential cash earnout payment based on Superior’s post-closing performance (the “Trans