Overland Park, Kan.-Standard & Poor’s has announced that Compass Minerals is expected to be added to the S&P MidCap 400 Index. “Through our continual focus on building shareholder value, Compass Minerals has grown from a market capitalization of $485 million at our initial public offering in December 2003 to our current market capitalization approaching $3 billion. We are honored that the S&P has recognized this growth, and we are pleased to become a part of this important investor index,” said Angelo Brisimitzakis, president and CEO of Compass Minerals. The MidCap 400 Index is intended to reflect overall risk and return characteristics of midsize U.S. companies and serves as a benchmark for investors. Inclusion in it is based on multiple factors, including location of assets and revenues, corporate structure, and industry and sector representation. Companies in the index must have a market capitalization in the $850 million to $3.8 billion range, as well as at least four consecutive quarters of positive reported earnings. The S&P MidCap 400 Index includes 7 percent of the U.S. equity market.