COMMERCE BANK ANNOUNCES NEW POSITIONS FOR VETERAN RETAIL BANKING OFFICERS

(Columbia, MO – July 7, 2010 ) – Teresa Maledy, president, Commerce Bank, Central Missouri region, recently announced the following new positions in the Retail Management division of Commerce Bank:

Jennifer Klepper has been named retail banking officer and branch manager of Commerce Bank’s Brown School Road banking center, 1202 E. Brown School Road. In her position, she is responsible for managing retail sales branch operations and developing consumer banking, lending, and small business banking relationships. Klepper has over ten years of business and banking experience and previously served as branch manager for the Commerce Bank branch located inside Hy-Vee. Active in the community, Klepper serves the Columbia Region March of Dimes and volunteers through Commerce in support of United Way.

Kelly Webb has been promoted to assistant vice president and branch manager of Commerce Bank’s newly remodeled banking center at 9th and Broadway. In her position, she is responsible for managing retail sales and customer service at the at the company’s Central Missouri Region headquarters location. Webb has more than ten years of banking and financial experience. She is active in the community, serving through Commerce Bank’s March of Dimes and United Way initiatives.

About Commerce Bank

Commerce Bank, N.A. is a subsidiary of Commerce Bancshares, Inc. (NASDAQ: CBSH), an $18 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, financial planning, and investments through its affiliated companies. Commerce Bank operates in 370 locations in the Central United States. Commerce Bancshares also has operating subsidiaries involved in mortgage banking, leasing, credit-related insurance, venture capital and real estate activities.

For additional information contact:

Email: mymoney@commercebank.com†