SOUTHERN CALIFORNIA BANCORP AND CALIFORNIA BANCORP ANNOUNCE RECEIPT OF REGULATORY APPROVAL FOR MERGER OF EQUALS - Seite 2

ABOUT CALIFORNIA BANCORP AND CALIFORNIA BANK OF COMMERCE

California BanCorp, the parent company for California Bank of Commerce, offers a broad range of commercial banking services to closely held businesses and professionals located throughout Northern California. California BanCorp’s common stock trades on the Nasdaq Global Select marketplace under the symbol CALB. For more information on California BanCorp, please visit our website at www.californiabankofcommerce.com.

FORWARD-LOOKING STATEMENTS

This communication may contain certain forward-looking statements, including but not limited to certain plans, expectations, projections and statements about the benefits of the proposed merger (the “Merger”), the timing of completion of the Merger, and other statements that are not historical facts. Such statements are subject to numerous assumptions, risks, and uncertainties. All statements other than statements of historical fact, including statements about beliefs and expectations, are forward-looking statements. Forward-looking statements may be identified by words such as “expect,” “anticipate,” “believe,” “intend,” “estimate,” “plan,” “target,” “goal,” or similar expressions, or future or conditional verbs such as “will,” “may,” “might,” “should,” “would,” “could,” or similar variations. The forward-looking statements are intended to be subject to the safe harbor provided by the Private Securities Litigation Reform Act of 1995.

Factors that could cause or contribute to results differing from those in or implied in the forward-looking statements include but are not limited to the occurrence of any event, change or other circumstances that could give rise to the right of Southern California Bancorp (“SCB”) or California BanCorp (“CBC”) to terminate their agreement with respect to the Merger; the outcome of any legal proceedings that may be instituted against SCB or CBC; delays in completing the Merger; the failure to obtain necessary regulatory approvals (and the risk that such approvals impose conditions that could adversely affect the combined company or the expected benefits of the Merger); the failure to obtain shareholder approvals or to satisfy any of the other conditions to the Merger on a timely basis or at all; the ability to complete the Merger and integration of SCB and CBC successfully; costs being greater than anticipated; cost savings being less than anticipated; changes in economic conditions; the risk that the Merger disrupts the business of SCB, CBC or both; difficulties in retaining senior management, employees or customers; the impact of bank failures or other adverse developments at other banks on general investor sentiment regarding the stability and liquidity of banks; and other factors that may affect the future results of SCB and CBC. Additional factors that could cause results to differ materially from those described above can be found in SCB’s Annual Report on Form 10-K for the year ended December 31, 2023, which is on file with the Securities and Exchange Commission (the “SEC”) and is available in the “Investor Relations” section of SCB’s website, www.banksocal.com, in CBC’s Annual Report on Form 10-K for the year ended December 31, 2023, which is on file with the SEC and is available in the “Investor Relations” section of CBC’s website, www.californiabankofcommerce.com, and in other documents that SCB and CBC file with the SEC. Investors may obtain free copies of these documents and other documents filed with the SEC on its website at www.sec.gov.