COMMERCE BANCSHARES, INC. (CBSH) ANNOUNCES A PRESENTATION TO ANALYSTS AND INVESTORS IN NEW YORK FEBRUARY 1-3, 2010

(St. Louis, MO – January 25, 2010 ) – Commerce Bancshares, Inc. announced today that David W. Kemper, Chairman, President, and CEO of Commerce Bancshares, Inc. will make a presentation at the Morgan Stanley 2010 U.S. Financials Conference on February 2, 2010 at 8:00 a.m. (Eastern Time). The presentation will be an update of the company’s 2009 financial performance and general business plan. Kemper’s presentation will be available via live web cast at http://www.corporate-ir.net/ireye/confLobby.zhtml?ticker=CBSH&item_id=2678346.

Additionally, Chief Financial Officer, Charles Kim, will make the same presentation to small groups of analysts and investors in New York on February 1-3, 2010.

The presentation will be available at www.commercebank.com under the investor relations section beginning Monday morning, February 1.

About Commerce Bank

Commerce Bank, N.A. is a subsidiary of Commerce Bancshares, Inc. (NASDAQ: CBSH), a $18.1 billion regional bank holding company. For more than 140 years, Commerce Bank has been meeting the financial services needs of individuals and businesses throughout the Midwest region. Commerce Bank provides a diversified line of financial services, including business and personal banking, wealth management and estate planning, and investments through its affiliated companies. Commerce Bank operates in approximately 370 locations in the Central United States. Commerce Bancshares also has operating subsidiaries involved in mortgage banking, leasing, credit-related insurance, private equity and real estate activities.

For additional information contact:

Email: mymoney@commercebank.com†