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Exhibit 21

SUBSIDIARIES OF THE REGISTRANT

        Subsidiaries of Chase Corporation as of August 31, 2010 are as follows:

Name	Jurisdiction of Incorporation
RWA, Inc.	Massachusetts
C.I.M. Industries, Inc.	New Hampshire
Chase Facile, Inc.	Massachusetts
Capital Services of New York, Inc.	New York
Chase & Sons Limited	United Kingdom
HumiSeal Europe SARL	France
HumiSeal Europe Limited	United Kingdom
Chase Protective Coatings Limited	United Kingdom

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Exhibit 21