On October 26, 2022, the Board of Directors of United States Lime & Minerals, Inc. amended Section 2 of Article Three of the Company's Bylaws to increase the size of the Board from six to seven directors and elected Tom S. Hawkins, Jr. as a director. Mr. Hawkins has had no prior transactions, contracts or arrangements with the Company. Although it is expected that Mr. Hawkins will be named to one or more committees of the Board, the Board has not yet determined the specific committees on which he will serve.