EXHIBIT 21
AMCOL INTERNATIONAL CORPORATION
SUBSIDIARY LISTING
COMPANY NAME COUNTRY STATE OWNERSHIP %
- --------------------------------------------------- ----------- ------- -----------
AMCOL Europe Limited England 100
AMCOL Health & Beauty Solutions, Inc. USA DE 100
AMCOL Holdings B.V. Netherlands 100
AMCOL (Holdings) Ltd. England 100
AMCOL Holdings Canada Ltd. Canada Ontario 100
AMCOL Specialties Holdings, Inc. USA DE 100
American Colloid Company USA DE 100
Ameri-Co Carriers, Inc. USA NE 100
Ameri-Co Logistics, Inc. USA NE 100
Ashapura Minechem Ltd. India 20
Ashapura Volclay Limited India 50
Baker Sillavan Limited England 50
CETCO (Europe) Limited England 100
CETCO Australia Pty. Ltd. Australia 100
CETCO Holdings B.V. Netherlands 100
CETCO Korea Ltd. Korea 100
Comercializadora y Exportadora Cetco Latino America
Limitada Chile 100
CETCO Oilfield Services Company USA DE 100
CETCO-POLAND Sp. z o. o Poland 100
CETCO Technologies (Suzhou) Co. Ltd. China 100
Colin Stewart Minchem Limited England 100
Colloid Environmental Technologies Company USA DE 100
Egypt Bentonite & Derivatives Company Egypt 25
Egypt Mining & Drilling Chemicals Company Egypt 25
Egypt Nano Bentonite Co. (S.A.E.) Egypt 29
Lafayette Well Testing, Inc. USA LA 100
Linteco GmbH Austria 100
Linteco Iberia S.L. Spain 100
Montana Minerals Development Company USA MT 100
Nanocor, Inc. USA DE 100
Nanocor, Ltd. England 100
Silgel Packaging Limited England 100
Volclay de Mexico, S.A. de C.V. Mexico 49
Volclay DongMing Industrial Minerals Co., Ltd. China 96
Amcol Holdings B.V. Netherlands 100
Volclay International Corporation USA DE 100
Volclay Japan Co. Ltd. Japan 50
Volclay Korea Ltd. Korea 100
Volclay MinChem Co. Ltd. China 100
Volclay Pty. Ltd. Australia 100
Volclay Siam Ltd. Thailand 100