ACO Amcol International Corp.

AMCOL International Corporation (NYSE: ACO) announces the following Webcast:

What: AMCOL International Corporation - First Quarter 2013 Earnings Results Conference Call

When: Friday, April 26, 2013 @ 11:00 AM ET

URL: http://www.visualwebcaster.com/event.asp?id=93221

How: Live over the Internet. -- Simply log on to the web at the address above.

Contact: Don Pearson of AMCOL International Corporation, 847-851-1500.

If you are unable to participate during the live webcast, the call will be archived on the Web site http://www.amcol.com/

This conference call may contain certain forward-looking statements regarding AMCOL's expected performance for future periods and actual results for such periods might materially differ. Such forward-looking statements are subject to uncertainties, which include, but are not limited to, actual growth in AMCOL's various markets, utilization of AMCOL's plants, currency exchange rates, currency devaluation, delays in development, production and marketing of new products, integration of acquired businesses, and other factors detailed from time to time in AMCOL's annual report and other reports filed with the Securities and Exchange Commission.

Contact: Don Pearson AMCOL International Corporation 847-851-1500