A.M. Best Withdraws Rating of ProCentury Corporation

Business Wire, August 20, 2008

OLDWICK, N.J. -- A.M. Best Co. has withdrawn the issuer credit rating of "bbb-" of ProCentury Corporation (ProCentury) (Westerville, OH).

This rating action is due to the completion of the merger of ProCentury and MBKPC Corp. (Merger Sub), a subsidiary of Meadowbrook Insurance Group, Inc. (Meadowbrook) (Southfield, MI) (NYSE: MIG). Merger Sub is the surviving entity in the merger and has adopted the name ProCentury Corporation. Meadowbrook is the sole owner of Merger Sub.

In connection with the closing of the merger, ProCentury notified the NASDAQ Stock Market (NASDAQ) of the consummation on July 31, 2008 and requested that NASDAQ suspend trading of common shares of ProCentury. As such, common shares of ProCentury are no longer listed on NASDAQ.

For Best's Ratings, an overview of the rating process and rating methodologies, please visit www.ambest.com/ratings.> Founded in 1899, A.M. Best Company is a global full-service credit rating organization dedicated to serving the financial and health care service industries, including insurance companies, banks, hospitals and health care system providers. For more information, visit www.ambest.com.