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Mr. Donnelly earned a Metallurgical Engineering degree at McMaster University in 1981, and subsequently joined Dofasco as in the role of Production Engineer in the galvanizing manufacturing facility and gained increasing production supervision responsibilities. Sean has experience with new facility construction. Sean’s 40-year career in the steel industry, spent entirely at Dofasco (acquired by ArcelorMittal SA in 2006) expanded into managerial roles focused on product development and market growth. As Vice President of Technology from 2009 to 2012, he drove crucial technological advancements, and as Vice President of Manufacturing from 2012 to 2014, he managed operations, including EAF steel production.

As President and Chief Executive Officer of ArcelorMittal Dofasco from 2014 to 2021 (when he retired), Sean lead the team securing a $2 Billion investment for AMD’s transformation to electric arc furnace steelmaking. Sean also implemented enhanced safety measures, navigated challenges with US trade tariffs and COVID-19. Additionally, he chaired the Canadian Steel Producers Association from 2016 to 2021, and joined the Board of Alectra Inc., an Ontario electric utility company, showcasing his versatile expertise and significant industry contributions. In addition to his role as a Director on the Alectra board of directors, Sean is a past chair of the Corporate Governance and Nominating Committee, a past chair of the People and Safety Committee, the current chair of the Development Committee, and a current member of the Audit Finance and Risk Management Committee.