On March 16, 2022, the Board of Directors of Solaris Oilfield Infrastructure, Inc., increased the size of the Board from eight (8) directors to nine (9) directors and, in connection therewith, appointed Laurie H. Argo as a Class I director, with a term expiring at the 2024 annual meeting of stockholders, and until she is either reelected or her successor is elected and qualified, or until her earlier death, resignation or removal, to fill the newly created vacancy. Ms. Argo meets the independence requirements under the rules of the New York Stock Exchange and the Company's independence standards and will serve on the Audit Committee of the Board.