Darlene Persons: Comerica Incorporated

DETROIT, July 26, 2006 — Comerica Incorporated has appointed Darlene P. Persons as Director of Investor Relations. The announcement was made by Chief Financial Officer Elizabeth S. Acton.

As Director of Investor Relations, Persons — a first vice president — will be responsible for fostering relationships with shareholders, analysts and the general investment community.

She succeeds Paul Burdiss, who will continue to serve as Treasurer.

Persons joined Comerica in 1986 and most recently served as group manager for Comerica’s Detroit-based Canadian-owned commercial banking customers.

She holds a bachelor’s degree in Finance from Miami University in Oxford, Ohio.

Comerica Incorporated is a financial services company headquartered in Detroit, strategically aligned into three major business segments: the Business Bank, the Retail Bank, and Wealth & Institutional Management. Comerica focuses on relationships and helping businesses and people to be successful. Comerica Bank locations can be found in Michigan, California, Texas, Florida and Arizona, with select businesses operating in several other states, and Canada and Mexico. Comerica reported total assets of $57.1 billion at June 30, 2006.

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