EX-24 2 ltpoa.htm

Securities and Exchange Commission

100 F Street, N.E.

Judiciary Plaza

Washington, DC  20549



Ladies and Gentlemen:



  I hereby authorize Mary E. Bowler, Corporate Secretary and Corporate

Counsel, or any Assistant Secretary, or their respective successors in office, to sign and

file on my behalf SEC Forms 3, 4 and 5 or any other SEC forms relating to changes in

beneficial ownership of securities of E. I. du Pont de Nemours and Company.  This

authorization shall remain in effect as long as I am a director of DuPont unless it is

earlier specifically revoked by me.



       Very truly yours,



       /s/ Lee M. Thomas



       Lee M. Thomas

            Director





       12/3/11

       Date