California Water Service Group Schedules 2026 Second-Quarter Earnings Results Announcement and Conference Call

California Water Service Group (NYSE: CWT) today announced that its 2026 second-quarter earnings results will be released at 9:00 a.m. ET with its earnings conference call to follow at 11:00 a.m. ET on Thursday, July 30, 2026. All stockholders and interested investors are invited to attend the conference call. To attend, please dial 1-800-715-9871 or 1-646-307-1963 and key in ID# 5478283, or you may access the live audio webcast at https://edge.media-server.com/mmc/p/p8cvrm58/ Please join at least 15 minutes in advance to ensure a timely connection to the call. A replay of the call will be available from 2:00 p.m. ET on Thursday, July 30, 2026, through September 28, 2026, at 1-800-770-2030 or 1-609-800-9909 and key in ID# 5478283, or by accessing the webcast above. The call will be hosted by Chairman, President and Chief Executive Officer Martin A. Kropelnicki and Senior Vice President, Chief Financial Officer and Treasurer James P. Lynch. Prior to the call, Cal Water will furnish a slide presentation on its website. About California Water Service Group California Water Service Group is the parent company of regulated utilities California Water Service, Hawaii Water Service, New Mexico Water Service, Washington Water Service, and Texas Water Service, a utility holding company. Together, these companies provide regulated and non-regulated water and wastewater service to more than 2.2 million people in California, Hawaii, New Mexico, Texas, and Washington. California Water Service Group’s common stock trades on the New York Stock Exchange under the symbol “CWT.” Additional information is available online at www.calwatergroup.com .