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Standard & Poor's Announces Change to U.S. Index

Standard & Poor's will monitor this transaction, and post any relevant updates on its website: www.standardandpoors.com.

Kaiser Aluminum manufactures semi-fabricated aluminum products. Headquartered in Foothill Ranch, CA, the company will be added to the S&P SmallCap 600 GICS (Global Industry Classification Standard) Aluminum Sub-Industry index.

Following is a summary of the change:

              S&P  SMALLCAP 600 INDEX - TBA
                           GICS ECONOMIC      GICS SUB-
               COMPANY         SECTOR         INDUSTRY
                Kaiser
     ADDED    Aluminum       Materials        Aluminum
     -----    ---------      ---------        --------
              Superior                        Oil & Gas
                Well                        Equipment &
    DELETED   Services        Energy          Services
    -------   ---------       ------       ------------

About S&P Indices

S&P Indices, the world's leading index provider, maintains a wide variety of investable and benchmark indices to meet an array of investor needs. Over $1.25 trillion is directly indexed to Standard & Poor's family of indices, which includes the S&P 500, the world's most followed stock market index, the S&P/Case-Shiller Home Price Indices, the leading measure of U.S. home prices, the S&P Global BMI, an index with approximately 11,000 constituents, the S&P GSCI, the industry's most closely watched commodities index, and the S&P National AMT-Free Municipal Bond Index, the premier investable index for U.S. municipal bonds. For more information, please visit www.standardandpoors.com/indices.

About Standard & Poor's

Standard & Poor's, a subsidiary of The McGraw-Hill Companies (NYSE: MHP), is the world's foremost provider of independent credit ratings, indices, risk evaluation, investment research and data. With offices in 23 countries and markets, Standard & Poor's is an essential part of the world's financial infrastructure and has played a leading role for 150 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.

SOURCE Standard & Poor's