Kirby McInerney LLP is investigating potential claims against the Board of Directors of AMCOL International Corporation ("AMCOL" or the "Company") (NYSE: ACO) concerning the proposed acquisition of the Company by Imerys S.A. ("Imerys"). Under the terms of the definitive merger agreement, AMCOL stockholders will receive $41.00 in cash for each share of AMCOL owned, valuing the transaction at approximately $1.6 billion, including AMCOL's debt.

The investigation concerns whether the AMCOL Board of Directors violated its fiduciary duties by agreeing to the proposed transaction and whether the proposed consideration adequately values AMCOL's common stock.

If you are an AMCOL stockholder and wish to obtain additional information, please contact J. Brandon Walker, Esq. by email at bwalker@kmllp.com, by telephone at (212) 699-1145 or (888) 529-4787, or by filling out this contact form. There is no cost or obligation to you.

Kirby McInerney LLP is a New York-based law firm concentrating in securities, shareholder, whistleblower, antitrust and consumer litigation. For additional information, please go to www.kmllp.com.

Kirby McInerney LLP
J. Brandon Walker, Esq., 212-699-1145 or 888-529-4787
bwalker@kmllp.com