ASO Airshares EU Carbon

AmSouth Bancorporation (NYSE: ASO) announced today that its Board of Directors has declared a regular quarterly dividend of $.26 per common share, payable April 3, 2006, to shareholders of record as of March 17, 2006. AmSouth's dividend yield as of Jan. 18, 2006, was 3.8 percent. AmSouth holds Mergent's "Dividend Achiever" designation for its record of increasing dividends for 35 consecutive years, an honor accorded just 3 percent of U.S.-listed, dividend-paying publicly traded companies. AmSouth also was named recently to Forbes magazine's Platinum 400 list, a prestigious ranking of the best big companies in America. About AmSouth AmSouth is a regional bank holding company with over $52 billion in assets, more than 680 branch banking offices and more than 1,200 ATMs. AmSouth operates in Florida, Tennessee, Alabama, Mississippi, Louisiana and Georgia. AmSouth is a leader among regional banks in the Southeast in several key business segments, including consumer and commercial banking, small business banking, mortgage lending, equipment leasing, and trust and investment management services. AmSouth also offers a complete line of banking products and services at its web site, www.amsouth.com.