THE COMMERCE FUNDS ANNOUNCES BOARD CHANGES

(St. Louis, MO – December 1, 2010) – The Commerce Funds board of trustees announce several changes to the Funds’ management. Martin E. “Sandy” Galt, III has been elected chairman of the board of The Commerce Funds. He succeeds J. Eric Helsing, who is retiring as chairman. And the board elected James M. Snowden, Jr. to serve on the board of trustees.

Galt, who most recently served as chairman of The Commerce Trust Company, will assume the role of chairman of the board of trustees of The Commerce Funds. Prior to serving as chairman of The Commerce Trust Company, Galt was president for Investment Products, TIAA-CREF, based in New York from 2000 through 2003. He served as executive vice president of Bank of America in St. Louis from 1997 through 2000. Before that, Galt was chairman and chief executive officer of Boatmen’s Trust Company before it was acquired by Bank of America, and held a variety of leadership roles at Centerre, a Boatmen’s predecessor bank.

Helsing has served as a board member and chairman of the board since the inception of the Commerce Funds, some fifteen years. He is a former professor and chairman of the Department of Business Administration and Economics of William Jewell College and a retired senior executive of the Mutual Benefit Life Insurance Company.

The Commerce Funds also announce that James M. Snowden, Jr. was elected to serve on the board of trustees. Snowden is executive vice president at Clayton, Missouri-based Huntleigh Securities Corp. Snowden spent the first nineteen years of his investment banking career on Wall Street before moving from Lehman Brothers to A.G. Edwards in 1984 to help develop its investment banking department. He joined Huntleigh in 1995 where, in addition to his ongoing corporate client relationships, he serves on the Boards or Advisory Boards of five large St. Louis companies and three not-for-profit organizations.

About The Commerce Family of Funds

The Commerce Funds, a family of eight mutual funds targeting specific investment goals, are advised by Commerce Investment Advisors, Inc., a subsidiary of Commerce Bank, N.A. Goldman, Sachs & Co is the distributor of The Commerce Funds.

The Commerce Trust Company

As of Sept. 30, 2010, The Commerce Trust Company was responsible for the administration of more than $30 billion of client assets, including more than $20 billion under active management.

Since 1906, The Commerce Trust has been a leading source of tailored asset management, creative private banking and comprehensive trust services for individuals, families, corporate executives, and business owners. In addition, The Commerce Trust serves a variety of institutional clients with customized investment programs as well as sole-source solutions for all of their financial needs.

The Commerce Trust Company is a division of Commerce Bank, N.A.

About Commerce Bank

Commerce Bank, N.A. is a subsidiary of Commerce Bancshares, Inc. (NASDAQ: CBSH), an $18.8 billion regional bank holding company as of 9/30/10. 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†