EX-24.1 2 rrd265727_299955.htm POWER OF ATTORNEY

rrd265727_299955.html

                                      POWER OF ATTORNEY


      The undersigned constitutes and appoints Timothy J. Donnelly, Andrea L. Knight, and
Michael V. Lee, and each of them, as the undersigned's true and lawful attorneys-in-fact and
agents, with full power of substitution and resubstitution, for the undersigned and in the
undersigned's name, place and stead, to sign any and all Securities and Exchange Commission
statements of beneficial ownership of securities of American Vanguard Corporation, a Delaware
corporation (the "Company") on Forms 3, 4 and 5 as required under Section 16(a) of the Securities
Exchange Act of 1934, as amended, and to file the same with all exhibits thereto, and other
documents in connection therewith, with the Securities and Exchange Commission, the Company
and the stock exchange or national market system on which such shares are publicly traded,
granting unto said attorneys-in-fact and agents, and each of them, full power and authority
to do and perform each act and thing requisite and necessary to be done under said Section 16(a),
as fully and to all intents and purposes as the undersigned might or could do in person, hereby
ratifying and confirming all that said attorneys-in-fact and agents, and each of them, may lawfully
do or cause to be done by virtue hereof.

      A copy of this power of attorney shall be filed with the Securities and Exchange Commission.
The authorization set forth above shall continue in full force and effect until the undersigned
revokes such authorization by written instructions to the attorneys-in-fact.

      The authority granted hereby shall in no event be deemed to impose or create any duty on
behalf of the attorney-in-fact with respect to the undersigned's obligations to file Forms 3, 4
and 5 with the Securities and Exchange Commission.

Dated:   December 1, 2010





					/s/ Johann Venter