COMMERCE BANK OFFERS PAYROLL SERVICES TO SMALL BUSINESS OWNERS THROUGH ADP

KANSAS CITY, MO, August 3, 2001 - Commerce Bank has announced it will provide payroll services to its small business clients. Working with an industry leader to offer payroll services is part of Commerce Bank's mission to provide "one-stop shopping" for small business customers. Payroll services will be offered through ADP and are a part of Commerce Bank's Business Tools product offering, which provides an array of products and services to help meet the needs of the small business owner.

Products offered through this partnership include:

Additionally, human resources management services are also available, including pre-employment screening and an easy-to-use online application that pulls together HR data, automates routine tasks and provides business-critical legal and compliance issues.

"Our partnership with ADP further solidifies our commitment to support small businesses," commented Andrew Kaplan, Senior Vice President and Manager of Commerce Bank's Small Business Banking Division. Our Business Tools package of products has become a valuable resource for our small business clients. We plan to continue to evaluate, update and enhance the products and services we can offer to help the business owner build and grow their business."

Automatic Data Processing, Inc. (NYSE: ADP) is one of the largest global providers of computerized transaction processing, data communications and information services, with more than $7 billion in revenues and more than 500,000 clients worldwide. ADP's Employer Services (ES) Division is a leading provider of integrated business administrative solutions that help clients efficiently manage their internal processes, allowing them to focus on core competencies. ADP ES' offerings include both traditional and Internet-based outsourcing products and services, giving clients the ability to select from ADP's comprehensive range of World Class Service solutions. Services include: payroll, tax regulatory management, HRIS, benefits administration, time and labor management, retirement plan services, online recruiting, and pre-employment screening.

Commerce Bank (NASD: CBSH) is an affiliate of Commerce Bancshares, Inc., a registered bank holding company with assets of $11.7 billion offering a full line of banking services, including investment management and securities brokerage. The Company currently operates in 342 locations in Missouri, Illinois, and Kansas. The Company also has operating subsidiaries involved in mortgage banking, credit related insurance, venture capital, and real estate activities. For more information, visit www.commercebank.com.

For more information contact:
Christy Campbell, Marketing Officer
(816) 234-7267

Website: www.commercebank.com
e-mail: mymoney@commercebank.com
SYMBOL: CBSH

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