Board of Directors

• Public Company CEO
• Strategy / M&A
• ESG
• Metals Industry
• Information Technology / Cybersecurity

Professional Experience
Since July 1, 2024, Mr. Wetherbee has served as Executive Chairman of the Board of ATI Inc. (“ATI”), a global producer of high-performance materials and solutions for the global aerospace and defense markets, and critical applications in electronics, medical, and specialty energy. Previously, Mr. Wetherbee served as Chief Executive Officer of ATI from June 2023 to June 2024 and President and Chief Executive Officer of ATI from 2019 to June 2023. Mr. Wetherbee has been a member of the board of directors of ATI since 2019 and became Board Chair of ATI in 2021. Mr. Wetherbee previously served as Executive Vice President of ATI's Flat Rolled Products Group from 2015 until 2018, and was the President of ATI Flat Rolled Products from 2014 until 2015. Prior to that, Mr. Wetherbee served as President and Chief Executive Officer of Minerals Technologies, Inc., a publicly traded, technology-driven specialty minerals company, Mr. Wetherbee's professional career has also included key leadership roles in executive, operational, and business development functions at Mineral Technologies, Inc. and Alcoa Inc.

• Compensation
• Finance

• Senior Executive
• Operations
• Legal and Regulatory
• ESG
• Cybersecurity

Professional Experience
Ms. Barton is the President and Chief Executive Officer for Alliant Energy Corporation. From 2021 to 2022, she served as Executive Vice President and Chief Operating Officer for American Electric Power Company, Inc. (AEP), one of the largest electric energy companies in the U.S. From 2019 through 2020, Ms. Barton was Executive Vice President - Utilities for AEP. From 2011 through 2018, Ms. Barton served as Executive Vice President – AEP Transmission. During her tenure at AEP, she has established AEP Transmission Holding Company and its affiliates, oversaw transmission operations, and grew and managed an $18 billion asset base. Prior to joining AEP, Ms. Barton worked for Northeast Utilities, Ransmeier and Spellman and Strategic Energy LLC.

• Nominating and Corporate Governance (Chair)
• Compensation

• Public Company CFO
• Strategy / M&A
• Global Business
• Capital Markets
• Metals Industry

Professional Experience
Mr. Matt has served as the President and Chief Executive Officer of CMC since September 1, 2023 and has served as President of CMC since April 2023. Prior to joining CMC, Mr. Matt served as Executive Vice President and Chief Financial Officer of Constellium N.V. (“Constellium”), a global aluminum fabrication company from 2016 to 2023. Prior to joining Constellium, Mr. Matt served as a Managing Partner for Tumpline Capital, LLC from 2015 to 2016. From 1985 to 2015, he held various leadership positions with Credit Suisse.

• Public Company CEO
• Strategy / M&A
• Global Business
• Manufacturing
• Executive Compensation

Professional Experience
Mr. McCullough currently sits on the Board of Directors of TRANSDIGM Group, Inc. and serves as an investor in, and advisor to, several private entities. Mr. McCullough previously served as Chief Executive Officer of ARI Packaging, Inc. from 2014 to 2017. Prior to that, he was President and Chief Executive Officer of Career Education Corporation from 2007 to 2011, where he also served on the Board of Directors. Mr. McCullough has also held senior roles at Abbott Laboratories, Wm. Wrigley Jr. Company and The Procter & Gamble Company. Notably, Mr. McCullough served as an Infantry Officer in the U.S. Army for 5 years, beginning as a Second Lieutenant and rising to the rank of Captain.

• TRANSDIGM Group, Inc.

• Perdoceo Education Corporation
• Sherwin-Williams Company

• Finance (Chair)
• Compensation

• Public Company CFO
• Strategy / M&A
• Related Industry
• Human Capital Management
• Innovation / Technology

Professional Experience
Mr. McPherson served as the Executive Vice President and Chief Financial & Strategy Officer of Vulcan Materials Company, a publicly traded company principally engaged in the production, distribution and sale of construction materials, from 2014 until 2018. Mr. McPherson served in a variety of leadership roles at Vulcan Materials Company from 2011 to 2014. Prior to joining Vulcan Materials Company, Mr. McPherson held several roles of increasing responsibility with McKinsey & Company and Goldman Sachs.

• Forterra, Inc.

• Audit
• Finance

• Senior Executive
• Public Company Governance
• Human Capital Management
• Executive Compensation
• Strategic Planning

Professional Experience
Ms. Raiss was employed by TransCanada Corporation, a North American energy infrastructure company, from 1999 to 2011, most recently serving as Executive Vice President, Corporate Services, from 2002 to 2011. Prior to joining TransCanada, Ms. Raiss served in various engineering, operations, strategic planning and marketing positions in the telecommunications industry at Ameritech Corporation and its subsidiary, Michigan Bell. In addition, Ms. Raiss has received an Institute of Corporate Directors professional designation and was recognized on the 2015 NACD Directorship 100 list.

• Lowblaw Companies
• RB Global, Inc.

• Vermillion Energy
• Canadian Oil Sands Ltd.
• MicroPlanet Technologies Corporation, a TSX Venture Exchange Company
• Shoppers Drug Mart

• Audit
• Nominating and Corporate Governance

• Public Company CEO and CFO
• Innovation / Technology
• Related Industry
• Information Technology / Cybersecurity
• Government and Regulatory

Professional Experience
From 2012 to 2015, Mr. Szews served as CEO of Oshkosh Corporation, a designer, manufacturer and marketer of specialty vehicles and vehicle bodies. Mr. Szews served in various capacities at Oshkosh, including as President and CEO from 2011 to 2012, as President and COO from 2007 to 2011 and as Executive Vice President and CFO from 1997 to 2007. Prior to joining Oshkosh, Mr. Szews held a series of executive positions with Fort Howard Corporation for eight years. Prior to Fort Howard Corporation, Mr. Szews was an auditor with Ernst & Young serving in various offices and capacities over a ten-year period.

• Group 1 Automotive, Inc.

• Allegion plc
• Gardner Denver, Inc.
• Rowan companies plc
• Valaris plc

• Audit (Chair)
• Nominating and Corporate Governance