阿科萨 ACA

Antonio CarrilloProfessional Experience: Mr. Carrillo currently serves as President and Chief Executive Officer of Arcosa, Inc. (2018-present). Prior to this, he held several senior leadership roles at Trinity Industries, Inc., including Senior Vice President and Group President of Construction, Energy, Marine, and Components in 2018, and earlier as Senior Vice President and Group President of the Energy Equipment Group with responsibility for Mexico operations from 1996 to 2012. He also served as Chief Executive Officer of Orbia Advance Corporation (formerly Mexichem S.A.B. de C.V.), a specialty chemicals and construction materials company, from 2012 to 2018. Current Public Company Boards: Mr. Carrillo serves on the board of NRG Energy, Inc. (2019-present) and has been Lead Independent Director since 2024. Prior Public Company Boards: He previously served on the boards of Dr Pepper Snapple Group, Inc. (2015-2018) and Trinity Industries, Inc. (2014-2018). Private Boards & Other Affiliations: Mr. Carrillo is actively involved in several organizations, serving as Chair of the Board of Directors for United Way of Metropolitan Dallas, as a member of the Dallas Citizens Council Board of Directors, and as Chairman of the Executive Board for Latin America at the Wharton School of the University of Pennsylvania. Education: Mr. Carrillo received a B.S. in Mechanical and Electrical Engineering from Universidad Anahuac in Mexico and an M.B.A. in Finance from the Wharton School of the University of Pennsylvania. Additional Information: As disclosed by NRG Energy, Inc., we expect Mr. Carrillo to transition from Lead Independent Director to non-executive Chair on April 30, 2026.

Gail M. Peck serves as Arcosa's Chief Financial Officer. Previously, she served as the Senior Vice President, Finance and Treasurer at Arcosa from 2018 to 2021. From 2010 until 2018, Ms. Peck served as Vice President, Finance and Treasurer of Trinity. From 2004 to 2009, she served as Vice President and Treasurer for Centex Corporation, a diversified building company.

Bryan P. Stevenson serves as the Chief Legal Officer at Arcosa. From 2015 until 2018, Mr. Stevenson was the Vice President, Associate General Counsel and Corporate Secretary for Trinity. Prior to joining Trinity, Mr. Stevenson was Vice President, General Counsel and Secretary for CarParts, Inc. (formerly known as U.S. Auto Parts Network, Inc.), an online provider of automotive parts, from 2011 to 2015.

Kerry S. Cole serves as a Group President at Arcosa. From 2016 until 2018, Mr. Cole served as President of Trinity Electrical Products, which included oversight for the Trinity Structural Towers and Trinity Meyer Utility Structures business units. Prior to this role, Mr. Cole served as President of Trinity Structural Towers business unit from 2007 to 2016. From 2000 to 2007, he served in a variety of operations and manufacturing leadership positions at Trinity spanning Mining and Construction Equipment, Heads, and Structural Bridge business units.

Mr. Best Professional Experience: Mr. Best earned a B.B.A. in Accounting from the University of North Texas and an M.B.A. in Banking and Finance from the Southern Methodist University Cox School of Business. He served at Lone Star Technologies, Inc., a producer of casing, tubing, line pipe, and couplings for the oil and gas, industrial, automotive, and power generation industries, where he held the roles of Chief Executive Officer from 2004 to 2007 and President and Chief Executive Officer from 1999 to 2004. Current Public Company Boards: Mr. Best currently serves on the board of Texas Pacific Land Corporation (2022-present) and has been its Non-Executive Chair since 2023. Prior Public Company Boards: He has extensive board experience, including serving at MRC Global, Inc. (2008-2022) as Non-Executive Chair from 2016 to 2022, Commercial Metals Company (2010-2022), Cabot Oil & Gas Corporation (2008-2021) where he was Lead Director from 2020 to 2021, Trinity Industries, Inc. (2005-2018) including Lead Director from 2009 to 2011, Crosstex Energy, L.P. (2004-2014) as Non-Executive Chair from 2009 to 2014, and Lone Star Technologies, Inc. as Chair from 1997 to 2007. Private Boards & Other Affiliations: In addition to his public board roles, Mr. Best served on the board of Austin Industries, Inc. (2007-2018), including as Non-Executive Chair from 2013 to 2018. He was recognized as Director of the Year in 2014 by the National Association of Corporate Directors and has also contributed as a member of the Advisory Board of Southern Methodist University's Maguire Energy Institute.

Mr. Alvarado Professional Experience: Commercial Metals Company, global manufacturer, recycler, and marketer of steel and other metalshe served as Chief Executive Officer from 2011 to 2017, as well as President and Chief Operating Officer in 2011 and Executive Vice President and Chief Operating Officer from 2010 to 2011. Prior to this, he held senior leadership roles including President of U.S. Steel Tubular Products at U.S. Steel Corp. from 2007 to 2009, President and Chief Operating Officer at Lone Star Technologies, Inc. from 2004 to 2007, and Vice President at Ispat North America Inc. (now ArcelorMittal) from 1998 to 2004. Earlier in his career, he served as Executive Vice President at Birmingham Steel Company and held multiple leadership roles at Inland Bar Company, including President from 1995 to 1997. In addition to his executive experience, Mr. Alvarado has served on several public company boards, including PNC Financial Services Group, Kennametal, and Trinseo, and previously chaired Commercial Metals Company while also serving as a director at Spectra Energy Corp. He is also actively involved in private boards, industry trade associations, and community organizations. He holds a Bachelor of Arts in Economics from the University of Notre Dame and an MBA in Finance from the Cornell University Johnson Graduate School of Management.

Professional Experience: Mr. Craig held multiple senior leadership roles at Meritor, Inc., a global supplier for commercial vehicle manufacturers, including Chief Executive Officer and President from 2015 to 2021, President and Chief Operating Officer from 2014 to 2015, Senior Vice President and President of Commercial Truck & Industrial from 2013 to 2014, and Senior Vice President and Chief Financial Officer from 2009 to 2013. Prior to joining Meritor, he served at General Motors Acceptance Corp., where he was President and CEO of Commercial Finance from 2001 to 2006 and President and CEO of the Business Credit Division from 1999 to 2001. Current Public Company Boards: Mr. Craig currently serves as Non-Executive Chair of Hyliion Holdings Corp. (2022-present) and as a member of the board of Baxter International Inc. (2024-present), where he also serves as Audit Committee Chair. Prior Public Company Boards: He previously served on the board of Meritor, Inc. from 2015 to 2021 and held the role of Executive Chair in 2021. Private Boards & Other Affiliations: Mr. Craig is a member of the President's Advisory Council at Michigan State University. Education: Mr. Craig received a B.S. in Accounting from Michigan State University and an M.B.A. from Duke University's Fuqua School of Business.

Professional Experience: Ms. Trent held several senior leadership roles at Rowan Companies plc (now Valaris plc), a global offshore contract drilling company, including Executive Vice President, General Counsel, and Chief Administrative Officer from 2014 to 2017; Senior Vice President, Chief Administrative Officer, and Corporate Secretary from 2011 to 2014; Vice President and Corporate Secretary from 2010 to 2011; and Compliance Officer and Corporate Secretary from 2005 to 2010. Earlier in her career, she served as Vice President of Investor Relations at Reliant Energy Incorporated from 1998 to 2003. Current Public Company Boards: Ms. Trent currently serves as Lead Independent Director of Diamondback Energy, Inc. (2018-present) and as a board member of Hyliion Holdings Corp. (2023-present). Prior Public Company Boards: She previously served on the boards of Noble Corporation (2021-2022) and Frank's International N.V. (now Expro Holding N.V.) from 2019 to 2021. Private Boards & Other Affiliations: Ms. Trent has been actively involved with Houston Endowment Inc., where she previously served as Chair and continues as a member. Education: Ms. Trent received a B.A. in Italian from Middlebury College and a Juris Doctor from Georgetown University.

Professional Experience: Ms. Lubel served as President and Chief Executive Officer of CST Brands, Inc., a publicly traded fuel and convenience retailer, from 2013 to 2017. Prior to that, she held several senior legal and executive roles at Valero Energy Corporation, including Executive Vice President and General Counsel from 2006 to 2013 and Vice President of Legal Services from 2003 to 2006. Current Public Company Boards: Ms. Lubel currently serves on the boards of Westlake Corporation (formerly Westlake Chemical) (2020-present) and PBF Energy Inc. (2017-present). Prior Public Company Boards: She previously served on the boards of WPX Energy, Inc. (2013-2020), CST Brands, Inc. where she was also Chair from 2013 to 2017, and CrossAmerica GP, LLC from 2014 to 2017. Private Boards & Other Affiliations: Ms. Lubel is actively involved in several organizations, serving as Chair of the Southwest Research Institute, as a Director at Inspire Trust Company, and as an Executive Coach and Mentor with The ExCo Group. Education: Ms. Lubel received a B.A. in Spanish and International Studies from Miami University (Ohio), an M.A. in International Relations from Baylor University, and a Juris Doctor from the University of Texas School of Law. She also completed the Executive Program at Stanford University.

Professional Experience: Ms. Piggott held a distinguished career at BNSF Railway Company, a leading freight transportation company in North America, where she served as Executive Vice President and Chief Financial Officer from 2014 to 2021. Prior to that, she held several senior finance leadership roles at the company, including Vice President, Planning & Studies and Controller (2009-2014), Vice President, Finance and Treasurer (2008-2009), and Vice President, Finance (2006-2008). Before joining BNSF, her experience included finance, accounting, and tax roles at a private investment management company and at Ernst & Young LLP (formerly Ernst & Whinney). Current Public Company Boards: Ms. Piggott currently serves on the board of Olin Corporation (2023-present). Private Boards & Other Affiliations: She is actively involved in nonprofit and academic organizations, serving as a board member of Lena Pope and as a member of the Advisory Board of the College of Business, Analytics & Communications at Minnesota State University Moorhead. Education: Ms. Piggott received a B.S. in Accounting from Minnesota State University Moorhead and an M.B.A. from the Southern Methodist University Cox School of Business. She is also a graduate of the Advanced Management Program at Harvard Business School and holds an inactive CPA license from the state of Minnesota.

Professional Experience: Mr. Lindsay has spent nearly his entire career at Helmerich & Payne, Inc., a provider of drilling services and technologies, serving in a wide range of leadership roles from 1987 to the present. Most recently, he has served as Senior Advisor since March 2026, following his tenure as Chief Executive Officer from October 2025 to March 2026 and as President and Chief Executive Officer from 2014 to October 2025. Prior to that, he held several senior operational roles, including President and Chief Operating Officer (2012-2014), Executive Vice President and Chief Operating Officer (2010-2012), Executive Vice President of U.S. and International Operations (2006-2010), and Vice President of U.S. Land Operations at Helmerich & Payne International Drilling Co. from 1997 to 2006. Prior Public Company Boards: Mr. Lindsay previously served on the board of Helmerich & Payne, Inc. from 2012 to March 2026. Private Boards & Other Affiliations: He is actively involved in industry and community organizations, including serving on the Advisory Board for Petroleum Engineering at the University of Tulsa, as a board member of the Tulsa Regional Chamber, and on the board of The Nature Conservancy's Oklahoma Chapter. He is also involved with the Permian Strategic Partnership and serves on the Advisory Board of the Bettering Human Lives Foundation. Education: Mr. Lindsay received a B.S. in Petroleum Engineering from the University of Tulsa.

Professional Experience: Mr. Demetriou currently serves as Executive Chair of Amentum Holdings, Inc. (2024-present), a global leader in advanced engineering and innovative technology solutions. Prior to this, he served at Jacobs Solutions, Inc. as Executive Chair from 2023 to 2024 and as Chief Executive Officer from 2015 to 2023. Earlier in his career, he was Chief Executive Officer of Aleris Corporation from 2004 to 2015 and of Noveon, Inc. from 2001 to 2004. He also held the role of Executive Vice President at IMC Global Inc. from 1999 to 2001, following leadership positions at Cytec Industries, Inc. from 1997 to 1999, and a long tenure at Exxon Mobil Corporation from 1981 to 1997. Current Public Company Boards: Mr. Demetriou serves as Executive Chair of Amentum Holdings, Inc. (2024-present) and is also a member of the board of FirstEnergy Corporation (2017-present). Prior Public Company Boards: He previously served on the board of Jacobs Solutions, Inc. from 2016 to 2024, including as Executive Chair from 2023 to 2024. His board experience also includes C5 Acquisition Corporation (SPAC) as Non-Executive Chair (2022-2023), Kraton Performance Polymers (2009-2017), Foster-Wheeler as Non-Executive Chair (2011-2014), OM Group (2005-2015), and Aleris Corporation as Executive Chair (2004-2015). Private Boards & Other Affiliations: Mr. Demetriou serves as a board member of the Cuyahoga Community College Foundation and as a Senior Advisor to Goldman Sachs. Education: Mr. Demetriou received a B.S. in Chemical Engineering from Tufts University.