East Texas Financial Services, Inc. Announces Additional Postponement of Special Meeting of Stockholders

East Texas Financial Services, Inc. ("ETFS") (OTCBB:FFBT) announced today that it has again postponed its special meeting of stockholders to approve its merger agreement with Prosperity Bancshares, Inc. The meeting, which was originally scheduled to be held on March 14, 2012 at 2:00 p.m., local time, had been postponed to March 28, 2012 at 2:00 p.m., local time. The meeting is now being postponed to April 18, 2012 at 2:00 p.m. local time. The meeting location will be OneREALTOR Center, 2...continued FFBT

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