The Board of Directors of California Water Service Group is saddened to report that Terry P. Bayer, the Board's Lead Independent Director, has recently suffered a serious, but treatable medical issue. In light of this medical issue, the Board has appointed Scott L. Morris as Interim Lead Independent Director, to serve in that capacity until the Board determines otherwise. The Board has also appointed Mr. Morris as an additional member of the Audit Committee of the Board.

In the event that the medical issue is not timely resolved, the Board does not expect to renominate Ms. Bayer for election at the 2023 annual meeting of stockholders, but reserves the right to reappoint Ms. Bayer to the Board or renominate her for election in the future if the medical issue is resolved.