Trustmark Corporation (NASDAQ:TRMK) (“Trustmark”) and BancTrust Financial Group, Inc. (NASDAQ:BTFG) (“BancTrust”) announced today that all required regulatory approvals have been received in connection with the proposed merger of BancTrust into Trustmark. Subject to customary closing conditions contained in the merger agreement, the transaction is expected to be effective as of the close of business on Friday, February 15, 2013. BankTrust customers should continue to conduct their banking business as usual, using existing branches, checks and ATM or debit cards, until receiving notice from Trustmark that system changes have been completed, which is expected to occur by the end of the first quarter of 2013. At that point, BankTrust customers will have an expanded offering of products and services, as well as the added convenience provided by more than 170 Trustmark banking centers in Florida, Mississippi, Tennessee and Texas. “We look forward to welcoming customers and associates of BancTrust to the Trustmark family. Expansion into attractive Alabama markets, including Mobile and Montgomery, as well as increasing scale in existing Florida Panhandle markets, represents a great opportunity for Trustmark,” said Gerard R. Host, President and CEO of Trustmark. W. Bibb Lamar, Jr., President and CEO of BancTrust, stated, “We are delighted to be joining forces with Trustmark and look forward to continuing to serve our customers as part of a strong, $12 billion regional banking organization.” Additional Information Trustmark Corporation is a financial services company providing banking and financial solutions through approximately 170 offices in Florida, Mississippi, Tennessee and Texas. BancTrust Financial Group, Inc. is a registered bank holding company headquartered in Mobile, Alabama. With assets of $2.0 billion, BancTrust provides an array of traditional financial services through 40 bank offices in the southern two-thirds of Alabama and nine bank offices in northwest Florida. Forward-Looking Statements Certain statements contained in this document constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. You can identify forward-looking statements by words such as “may,” “hope,” “will,” “should,” “expect,” “plan,” “anticipate,” “intend,” “believe,” “estimate,” “predict,” “potential,” “continue,” “could,” “future” or the negative of those terms or other words of similar meaning. You should read statements that contain these words carefully because they discuss our future expectations or state other “forward-looking” information. These forward-looking statements include, but are not limited to, statements relating to anticipated future operating and financial performance measures, including net interest margin, credit quality, business initiatives, growth opportunities and growth rates, among other things, and encompass any estimate, prediction, expectation, projection, opinion, anticipation, outlook or statement of belief included therein as well as the management assumptions underlying these forward-looking statements. You should be aware that the occurrence of the events described under the caption “Risk Factors” in Trustmark’s and BancTrust’s filings with the Securities and Exchange Commission could have an adverse effect on our business, results of operations and financial condition. Should one or more of these risks materialize, or should any such underlying assumptions prove to be significantly different, actual results may vary significantly from those anticipated, estimated, projected or expected.