On October 31, 2018, Arcosa, Inc. entered into Separation and Distribution Agreement with Trinity Industries, Inc. Arcosa, Inc. announced that effective as of October 31, 2018, Timothy Wallace, James Perry, and Theis Rice were removed from the Board, and Joseph Alvarado, David W. Biegler, Jeffrey A. Craig, Ronald J. Gafford, John W. Lindsay, Douglas L. Rock, and Melanie M. Trent were appointed to the Board and Mr. Best was appointed to serve as the Non-Executive Chairman of the Board. Also, in connection with the Distribution, effective as of October 31, 2018, Mr. Rock, Mr. Craig and Ms. Trent were appointed as members of the Audit Committee. Mr. Rock was appointed to serve as the Chair of the Audit Committee. Mr. Gafford, Mr. Alvarado and Ms. Trent, each of whom has been determined by the Board to be independent under NYSE listing standards, were appointed as members of the Corporate Governance and Directors Nominating Committee of the Board. Mr. Gafford was appointed to serve as the Chair of the Corporate Governance and Directors Nominating Committee. Mr. Biegler, Mr. Alvarado, and Mr. Lindsay, each of whom has been determined by the Board to be independent under SEC rules and NYSE listing standards applicable to compensation committee members, were appointed as members of the Human Resources Committee of the Board. Mr. Biegler was appointed the Chair of the Human Resources Committee.