PITTSBURGH–(BUSINESS WIRE)–Alcoa Corporation (NYSE:AA) today announced plans to restart three of five potlines at its Warrick Operations aluminum smelter near Evansville, Ind., an action that will further improve the competitiveness of the on-site rolling mill. The process to restart the three lines, with 161,400 metric tons of annual capacity, will begin immediately and is expected to be complete in the second quarter of 2018. The three potlines will directly supply the Warrick rolling mill,