Material Agreement Form 8 K

On July 18, 2024, Unitil Corporation ("Unitil") entered into a First Amendment to Third Amended and Restated Credit Agreement between Until and Bank of America, N.A., as administrative agent (the "First Amendment"). The First Amendment amends the Third Amended and Restated Credit Agreement among the following parties (the "Third Amended and Restated Credit Agreement"): Unitil; Bank of America, N.A., as administrative agent; and Bank of America, N.A., Citizens Banks, N.A., and TD Bank, N.A. (each, a "Lender").

The First Amendment adds a quarterly payment schedule for the commitment fee, which was inadvertently omitted from the Third Amended and Restated Credit Agreement, and clarifies the payment schedule for commitment fee payments.

Unitil and its affiliates have relationships with Bank of America, N.A. and the other Lenders involving the provision of depository and other cash management and commercial banking services, including with respect to the Third Amended and Restated Credit Agreement.