Commitment to ESG

Acquisition Growth and Opportunities 2010-2020 Customer Growth 25+ acquisitions by SJW Group and subsidiaries Very Small, Small and Medium Sized Community Water Systems In CA, CT, ME and TX • 65% customer growth, ~154K new customers • • • Transformational growth with CTWS acquisition in 2019 2021 Acquisitions SJWTX completed acquisitions of Kendall West, Bandera East and Clear Water Estates Completed acquisitions represent over 1,800 service connections Clear Water Estates first fair market value acquisition in Texas by any utility Connection growth in Texas nearly quadrupled between 2006 and 2021 to over 24,000 water and wastewater connections Opportunities More than 8,400 community water systems in CA, CT, ME and TX 14,020 Very Small Systems Population Served Very Small = 25-300 Small 301-3,300 Medium = 3,301 - 10,000 1,023 Medium Systems 2,879 Small Systems • More than 16,000 publicly owned wastewater systems nationwide SJW Group Sources: Company filings, EPA Drinking Water Dashboard, Cybersecurity and Infrastructure Security Agency, "Water and Wastewater Systems Sector" 12

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