Sean Donnelly
Retired President & CEO ArcelorMittal Dofasco
Distinguished Fellow
Sean Donnelly retired from ArcelorMittal Dofasco in 2021 as President and CEO. Throughout his 40-year career with Dofasco, Sean held several senior positions in the Technology, Manufacturing and Commercial areas of the company. He also served on the global Management Committee of ArcelorMittal.
Sean has served on several boards of steel industry associations including Chair of the Canadian Steel Producers Association and Director of the American Iron and Steel Institute. He also served as a member of McMaster University’s Board of Governors for seven years and is currently on the Board of Directors for Alectra Utilities. In 2015, Sean received the L.W. Shemilt Distinguished Alumni award from McMaster University’s Faculty of Engineering.
Sean holds a B. Engineering (Metallurgical) from McMaster University.