Ms. Lubel's strong legal background, strategic leadership skills, and experience as a public company CEO and independent board member provide the Board with additional perspective on Arcosa's operations. 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 Doctorate from the University of Texas School of Law. She is also a graduate of the Executive Program at Stanford University. Professional Experience: CST Brands, Inc., a publicly traded fuel and convenience retailer President and Chief Executive Officer (2013-2017) Valero Energy Corporation Executive Vice President and General Counsel (2006-2013) Vice President of Legal Services (2003-2006) Current Public Company Boards: Westlake Corporation (formerly Westlake Chemical) (2020-present) PBF Energy Inc. (2017-present) Prior Public Company Boards: WPX Energy, Inc. (2013-2020) CST Brands, Inc., Chair (2013-2017) CrossAmerica GP, LLC (2014-2017) Private Boards & Other Affiliations: Southwest Research Institute, Vice Chair Inspire Trust Company, Director The ExCo Group, Executive Coach & Mentor Age: 60 Director Since: 2021 INDEPENDENT Board Committees: Governance & Sustainability Human Resources