Mario Longhi is the CEO of United States Steel based in Pittsburgh, Pennsylvania, USA. He was promoted to CEO in September 2013 after the retirement of John P. Surma and after Longhi had completed 15 months as an executive of the corporation.Prior to his service at U.S. Steel, Longhi served as CEO of Gerdau Ameristeel Corporation from 2006-2011.A native of Tatuí, Brazil he obtained both undergraduate and master's degrees in metallurgical engineering from Instituto Mauá de Tecnologia.
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