COMMERCE BANK ANNOUNCES OFFICER PROMOTIONS AND ELECTIONS

Mary McClain has been promoted to Senior Vice President of The Commerce Trust Company, a division of the bank. In her position, she is responsible for overseeing client service and personal account administration for the Trust Department at the Commerce Bank Plaza location. She has been with Commerce for over 20 years and is a member of the Central Exchange and Board Member of Brookside Charter School.

Michael Doyle has been promoted to Vice President in the Commercial division. He is responsible for business development and customer service related to Commerce's commercial lending. Doyle earned a Bachelor of Science degree in Finance from Nebraska Wesleyan, Lincoln, Neb.

About Commerce Bank
Commerce Bank is the principal subsidiary of Commerce Bancshares Inc. (NASDAQ: CBSH), a $13.3 billion regional bank holding company. For more than 135 years, Commerce has been meeting the financial services needs of individuals and businesses. Commerce provides a diversified line of financial services, including business and personal banking, wealth management and estate planning and investments through its affiliated companies. Commerce Bancshares operates across three states with more than 340 locations and also has operating subsidiaries involved in mortgage banking, credit related insurance, venture capital and real estate activities.

For additional information, please visit
Website: www.commercebank.com
e-mail: mymoney@commercebank.com
SYMBOL: CBSH

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