Steel Dynamics CEO and leadership

Mark is a co-founder of Steel Dynamics, Inc. (SDI) and recipient of the 2014 AIST Steelmaker of the Year Award. He has held a variety of senior management positions and served on the board of directors since SDI’s inception in 1993. In August 2008, Mark was named Executive Vice President for Metals Recycling and Ferrous Resources, as well as President and Chief Operating Officer of OmniSource Corporation. From 1998 to 2008, Mark was responsible for SDI’s Flat Roll mill operations. Under Mark’s leadership, the facility experienced significant growth, expansion, and portfolio diversification. As a result, SDI operates one of the most productive and profitable flat roll mini mill operations in the United States. Mark assumed the position of President and Chief Executive Officer of Steel Dynamics on January 1, 2012. Prior to the formation of Steel Dynamics, Mark worked for Nucor Corporation for 12 years and earned his bachelor’s degree in metallurgy from the University of Surrey, England.

Theresa is executive Vice President and Chief Financial Officer of Steel Dynamics. Inc. She joined the Steel Dynamics corporate finance team in 1998, and has held various finance and accounting positions, including Chief Accounting Officer and Vice President and corporate controller, and was appointed to her current position in May 2007. She is responsible for and oversees accounting, risk management, taxation, treasury, and information-technology functions, as well as, financial planning and analysis, investor relations, and corporate communications. Prior to joining Steel Dynamics, Theresa served as assistant corporate controller for Fort Wayne National Bank and as a certified public accountant with Ernst & Young LLP. She graduated cum laude from Taylor University in accounting and systems analysis. In addition to her SDI corporate EVP responsibilities, Theresa serves as a director of CF Industries Holdings Inc. and of the Steel Dynamics Foundation, which focuses heavily on education, children’s resources and development, and community support for those areas in which the company’s employees work and live. Theresa is also a trustee of Trine University. She is personally involved in numerous charitable and community organizations, with a focus on areas that benefit children through education, growth opportunities and services. Theresa is proud to be a part of a company that echoes her strong belief in the necessity and obligation to “give back” with both personal time and finances.

Mark is a co-founder of Steel Dynamics, Inc. (SDI) and recipient of the 2014 AIST Steelmaker of the Year Award. He has held a variety of senior management positions and served on the board of directors since SDI’s inception in 1993. In August 2008, Mark was named Executive Vice President for Metals Recycling and Ferrous Resources, as well as President and Chief Operating Officer of OmniSource Corporation. From 1998 to 2008, Mark was responsible for SDI’s Flat Roll mill operations. Under Mark’s leadership, the facility experienced significant growth, expansion, and portfolio diversification. As a result, SDI operates one of the most productive and profitable flat roll mini mill operations in the United States. Mark assumed the position of President and Chief Executive Officer of Steel Dynamics on January 1, 2012. Prior to the formation of Steel Dynamics, Mark worked for Nucor Corporation for 12 years and earned his bachelor’s degree in metallurgy from the University of Surrey, England.

Mark is a co-founder of Steel Dynamics, Inc. (SDI) and recipient of the 2014 AIST Steelmaker of the Year Award. He has held a variety of senior management positions and served on the board of directors since SDI’s inception in 1993. In August 2008, Mark was named Executive Vice President for Metals Recycling and Ferrous Resources, as well as President and Chief Operating Officer of OmniSource Corporation. From 1998 to 2008, Mark was responsible for SDI’s Flat Roll mill operations. Under Mark’s leadership, the facility experienced significant growth, expansion, and portfolio diversification. As a result, SDI operates one of the most productive and profitable flat roll mini mill operations in the United States. Mark assumed the position of President and Chief Executive Officer of Steel Dynamics on January 1, 2012. Prior to the formation of Steel Dynamics, Mark worked for Nucor Corporation for 12 years and earned his bachelor’s degree in metallurgy from the University of Surrey, England.

Theresa is executive Vice President and Chief Financial Officer of Steel Dynamics. Inc. She joined the Steel Dynamics corporate finance team in 1998, and has held various finance and accounting positions, including Chief Accounting Officer and Vice President and corporate controller, and was appointed to her current position in May 2007. She is responsible for and oversees accounting, risk management, taxation, treasury, and information-technology functions, as well as, financial planning and analysis, investor relations, and corporate communications. Prior to joining Steel Dynamics, Theresa served as assistant corporate controller for Fort Wayne National Bank and as a certified public accountant with Ernst & Young LLP. She graduated cum laude from Taylor University in accounting and systems analysis. In addition to her SDI corporate EVP responsibilities, Theresa serves as a director of CF Industries Holdings Inc. and of the Steel Dynamics Foundation, which focuses heavily on education, children’s resources and development, and community support for those areas in which the company’s employees work and live. Theresa is also a trustee of Trine University. She is personally involved in numerous charitable and community organizations, with a focus on areas that benefit children through education, growth opportunities and services. Theresa is proud to be a part of a company that echoes her strong belief in the necessity and obligation to “give back” with both personal time and finances.