Standard & Poor's Announces Change to U.S. Index NEW YORK, July 28 /PRNewswire/ -- USANA Health Sciences Inc. (NASD: USNA) will replace CUNO Inc. (NASD: CUNO) in the S&P SmallCap 600 after the close of trading on Tuesday, August 2. CUNO is being acquired by S&P 500 constituent 3M Co. (NYSE:MMM) in a deal still pending final approvals. Standard & Poor's will monitor this transaction, and post any relevant updates on its website: http://www.standardandpoors.com/. USANA Health Sciences develops and manufactures nutritional, personal care and weight management products. Headquartered in Salt Lake City, UT, the company will be added to the S&P SmallCap 600 GICS (Global Industry Classification Standard) Personal Products Sub-Industry Index. Following is a summary of the change: S&P SMALLCAP 600 INDEX - August 2, 2005 COMPANY GICS ECONOMIC SECTOR GICS SUB-INDUSTRY ADDED USANA Health Consumer Staples Personal Products Sciences DELETED CUNO Industrials Industrial Machinery Additions to and deletions from an S&P equity index do not in any way reflect an opinion on the investment merits of the companies concerned. About Standard & Poor's Standard & Poor's, a division of The McGraw-Hill Companies (NYSE:MHP), is the world's foremost provider of independent credit ratings, indices, risk evaluation, investment research, data and valuations. With 6,500 employees located in 22 countries, Standard & Poor's is an essential part of the world's financial infrastructure and has played a leading role for more than 140 years in providing investors with the independent benchmarks they need to feel more confident about their investment and financial decisions. For more information, visit http://www.standardandpoors.com/. Founded in 1888, The McGraw-Hill Companies is a leading global information services provider meeting worldwide needs in the financial services, education and business information markets through leading brands such as Standard & Poor's, McGraw-Hill Education and BusinessWeek. The Corporation has more than 300 offices in 40 countries. Sales in 2004 were $5.3 billion. Additional information is available at http://www.mcgraw-hill.com/. DATASOURCE: Standard & Poor's CONTACT: David M. Blitzer, Ph.D. Managing Director & Chairman of the Index Committee (212) 438-3907 Web site: http://www.standardandpoors.com/ http://www.mcgraw-hill.com/

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