EXTENSION OF EMPLOYMENT AGREEMENT DATE: August 28, 2001 Parties: Techne Corporation 614 McKinley Place N.E. Minneapolis, MN 55413 Marcel Veronneau AGREEMENTS: The parties hereby agree that the termination date of the Employment Agreement between them...

                EXTENSION OF EMPLOYMENT AGREEMENT


DATE:      August 28, 2001

Parties:   Techne Corporation
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AGREEMENTS:

     The parties hereby agree that the termination date of the Employment
Agreement between them for the period July 1, 1995 through June 30, 1998 and
previously extended to June 30, 2001 is extended to June 30, 2004.  All other
provisions of such Employment Agreement shall remain in full force and
effect.


                                               Techne Corporation

                                               By /s/ Xxxxxx X. Xxxxx
                                                  Xxxxxx X. Xxxxx, President

                                                  /s/ Xxxxxx Xxxxxxxxx
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