POWER OF ATTORNEY Ladies and Gentlemen I hereby suthorize Mary E. Bowler, Corporate Secretary and Corporate Counsel, or any Assistant Secretary, or thier 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 bendricial ownership of securities of E. I. du Ponte 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, Signature: /s/ Print Name: Lamberto Andreotti, Director Date: April 29, 2012