[CONFIDENTIAL TREATMENT REQUESTED. CONFIDENTIAL PORTIONS OF THIS
DOCUMENT
HAVE BEEN REDACTED AND HAVE BEEN SEPARATELY FILED WITH THE COMMISSION]
AMENDMENT NO. 4
TO
BOVINE VACCINE DISTRIBUTION AGREEMENT
THIS AMENDMENT NO. 4 ("Amendment") is entered into as of the 15th day of April, 2002, by and between
DIAMOND ANIMAL HEALTH, INC., an Iowa corporation with offices at 2538 Southeast 43rd Street, Des
Moines, Iowa 50317 ("Diamond") and AGRI LABORATORIES, LTD., a Delaware corporation, with offices at
20927 State Route K, St. Joseph, Missouri 64505 ("Distributor").
WHEREAS, Diamond and Distributor are parties to that certain Bovine Vaccine Distribution Agreement dated
as of February 13, 1998 (the "Original Agreement"), as previously amended by that certain Amendment No. 1
dated July 13, 1998 ("Amendment No. 1"), that certain Amendment No. 2 dated as of December 13, 1999
("Amendment No. 2"), and that certain Amendment No. 3 dated as of July 12, 2001 ("Amendment No. 3"), true
and complete copies of which are annexed hereto as Appendix I (collectively, the "Prior Agreement"); and
WHEREAS, Diamond and Distributor desire to amend the Prior Agreement in accordance with the terms and
conditions set forth in this Amendment;
NOW, THEREFORE, for good and valuable consideration, the receipt and sufficiency of which are hereby
acknowledged, the parties agree as follows:
1. Definitions.
a. In General. Capitalized terms used herein shall have the meanings ascribed to them in the Prior Agreement,
unless otherwise defined herein. Without limiting the generality of the foregoing, the following capitalized terms
shall have the following meanings for purposes of the Prior Agreement and this Agreement:
b. "Agreement" shall mean this Amendment and the Prior Agreement, as amended by this Amendment, taken
together as a whole.
c. "Contract Year" shall mean each successive 12-month period ending on December 15 in each calendar year
and beginning on December 16 in the previous calendar year, during the term