president and chief executive officer
Nucor Corp., Charlotte, N.C., USA
Leon Topalian is president and chief executive officer of Nucor Corp. He joined Nucor in 1996 as a project engineer at Nucor Steel–Berkeley in Huger, S.C., USA, and was promoted to cold mill production supervisor in 1998. From 2002 to 2009, he held various leadership positions throughout Nucor in Australia, at Nucor Steel–South Carolina and Nucor Steel Kankakee Inc. He was promoted to general manager of Nucor Steel Kankakee Inc. in 2011 and vice president in 2013. In 2014, Topalian was named vice president and general manager of Nucor-Yamato Steel Co. In May 2017, he was appointed executive vice president of Beam and Plate Products for Nucor Corp. In September 2019, he was appointed president and chief operating officer of Nucor Corp. On 1 January 2020, he became president and chief executive officer of Nucor Corp. Topalian serves as a director on Nucor’s board of directors. He also serves as a board member for Nucor-Yamato Steel Co. and Duferdoﬁn-Nucor. He graduated from Massachusetts Maritime Academy with a B.S. degree in marine engineering.