EXHIBIT 21
AMERICAN COLLOID COMPANY
COMPANY NAME COUNTRY STATE OWNERSHIP%
------------ ------- ----- ----------
American Colloid Company USA DE Parent
American Colloid Mineral Company USA DE 100
Ameri-co Carriers, Inc. USA NE 100
Nationwide Freight Svcs., Inc. USA NE 100
Chemdal Corporation USA DE 100*
Superior Absorbents, Inc. USA DE 100
(formerly Colloid-Piepho, Inc.)
Montana Minerals Development USA MT 100
Colloid Australia Pty., Ltd Australia 100
Volclay Limited U.K. 100
Chemdal International Corp. USA DE 100
Chemdal Pty., Ltd. Australia 100
ACC-Chem Limited Cyprus 100
ACC-Colloid Technology Ltd. Cyprus 100
Amcol International Corp. USA DE 100
Volclay Standard Pty. Ltd. Australia 60
Volclay de Mexico Mexico 49
ACP Export, Inc. U.S. Virgin Islands 100
Chemdal Limited England 100*
Foundry Supplies Limited England 100
EXHIBIT 21
AMERICAN COLLOID COMPANY
COMPANY NAME COUNTRY STATE OWNERSHIP%
------------ ------- ----- ----------
Colloid Abwassertechnik GmbH Germany 100**
Colloid Environmental Technologies Company USA DE 100
American Colliod Company Ltd. Canada Ontario 100
* Owned by Chemdal International
** Owned by Volclay Limited