Coppermark was advised in this transaction by Commerce Street Capital, LLC as financial advisor and Fenimore, Kay, Harrison & Ford, LLP and Cheek & Falcone, PLLC as legal counsel. Bracewell & Giuliani LLP was legal counsel to Prosperity.In addition to the information contained within this announcement, an Investor Presentation has been posted on Prosperity's website ( www.prosperitybanktx.com) containing additional information regarding this merger. Prosperity Bancshares, Inc. ® Prosperity Bancshares Inc. ®, recently named "America's Best Bank" by Forbes is a $13.7 billion Houston, Texas based regional financial holding company, formed in 1983. Operating under a community banking philosophy and seeking to develop broad customer relationships based on service and convenience, Prosperity offers a variety of traditional loan and deposit products to its customers, which consist primarily of small and medium sized businesses and consumers. In addition to established banking products, Prosperity offers a complete line of services including: Internet Banking services at http://www.prosperitybanktx.com, Retail Brokerage Services, MasterMoney Debit Cards, 24 hour voice response banking, Trust and Wealth Management and Mobile Banking. Prosperity currently operates two hundred thirteen (213) full service banking locations; fifty-nine (59) in the Houston area; twenty (20) in the South Texas area including Corpus Christi and Victoria; thirty-five (35) in the Dallas/Fort Worth area; twenty-one (21) in the East Texas area; thirty-four (34) in the Central Texas area including Austin and San Antonio; thirty-four (34) in the West Texas area including Lubbock, Midland/ Odessa and Abilene; and ten (10) in the Bryan/College Station area. In connection with the proposed merger of Coppermark Bancshares, Inc. into Prosperity Bancshares, Prosperity Bancshares will file with the Securities and Exchange Commission a registration statement on Form S-4 to register the shares of Prosperity's common stock to be issued to the stockholders of Coppermark Bancshares, Inc. The registration statement will include a proxy statement/prospectus which will be sent to the stockholders of Coppermark Bancshares, Inc. seeking their approval of the proposed transaction.