Unitil Corporation announced that on April 7, 2023, Mark H. Collin stepped down from the Audit Committee (the “Audit Committee”) of the Board of Directors of the Company. Also, on April 7, 2023, the Board of Directors of the Company subsequently reconstituted the Audit Committee by appointing Edward F. Godfrey, Michael B. Green, and Justine Vogel as the sole members of the Audit Committee, effective as of April 7, 2023.