Compass Minerals (NYSE: CMP) will release its fourth-quarter 2011 financial results after the close of the markets on Tuesday, February 7, and will discuss its results on a conference call on Wednesday, February 8, at 9:00 a.m. ET.

To access Compass Minerals' conference call, interested parties should visit the company's website at www.CompassMinerals.com or dial (877) 614-0009. Callers must provide the conference ID number 9450050. Outside of the U.S. and Canada, callers may dial (913) 643-4075. Replays of the call will be available on the company's website for two weeks. The replay can also be accessed by phone for seven days at (888) 203-1112, conference ID 9450050. Outside of the U.S. and Canada, callers may dial (719) 457-0820.

A summary of the company's fourth-quarter performance will also be available on the company's website by 9:00 a.m. ET on Wednesday, February 8, at www.CompassMinerals.com/Presentation.

About Compass Minerals

Based in the Kansas City metropolitan area, Compass Minerals is a leading producer of minerals, including salt, sulfate of potash specialty fertilizer and magnesium chloride. The company provides highway deicing salt to customers in North America and the United Kingdom and specialty fertilizer to growers worldwide. Compass Minerals also produces consumer deicing, water conditioning and pool products, ingredients used in consumer and commercial foods, and other mineral-based products for consumer, agricultural and industrial applications. The company also provides records management services to businesses throughout the U.K. For more information, visit www.compassminerals.com.

Compass Minerals
Rodney L. Underdown, 913-344-9395
Chief Financial Officer
or
Peggy Landon, 913-344-9315
Director of Investor Relations and
Corporate Communications