H2O AMERICA

Development of Business H2O America, a Delaware corporation, was initially incorporated as SJW Corp. in the state of California in 1985. In May 2025, the company changed its corporate name from SJW Group to H2O America. We will not distinguish between our prior and current corporate name and will refer to our current corporate name throughout this Annual Report on Form 10-K. As such, unless expressly indicated or the context requires otherwise, the terms H2O America, company, we, us, and our in this document refer to H2O America, a Delaware corporation, and, where appropriate, its subsidiaries. H2O America is a holding company that conducts its business through the following wholly owned subsidiaries: San Jose Water Company ( SJWC ), with its headquarters located at 110 West Taylor Street in San Jose, California 95110, was originally incorporated under the laws of the State of California in 1866. As part of a reorganization in 1985, SJWC became a wholly owned subsidiary of H2O America. SJWC is a public utility in the business of providing water service in the metropolitan San Jose, California area. H2O America NE LLC (previously known as SJWNE LLC), a Delaware limited liability company, was formed in 2019, and is a wholly owned subsidiary of H2O America. H2O America NE LLC is a special purpose entity established to hold H2O America’s investment in Connecticut Water Service, Inc. Connecticut Water Service, Inc. with its headquarters located in Clinton, Connecticut, was incorporated in 1974 in the State of Connecticut.