POWER OF ATTORNEY


Know all by these presents, that the undersigned hereby
constitutes and appoints each of Melissa J. Gambol, Linda E. Jolly,
and Lewis A. Steverson signing singly, his true and lawful
attorney-in-fact to:

(1) execute for and on behalf of the undersigned the
application for EDGAR Form ID that is used to
facilitate electronic filings with the Securities and
Exchange Commission;

(2) execute for and on behalf of the undersigned Forms
3, 4 and 5 in accordance with Section 16(a) of the
Securities and Exchange Act of 1934 and the rules
thereunder;

(3) do and perform any and all acts for and on behalf of
the undersigned which may be necessary or desirable
to complete the execution of any such Form 3, 4 or 5
and the timely filing of such form with the United
States Securities and Exchange Commission and any
other authority; and

(4) take any other action of any type whatsoever in
connection with the foregoing which, in the opinion
of such attorney-in-fact, may be of benefit to, in the
best interest of, or legally required by, the
undersigned, it being understood that the documents
 executed to this Power of Attorney shall be in such
form and shall contain such terms and conditions as
such attorney-in-fact may approve in his discretion.

The undersigned hereby grants to each such attorney-in-
fact full power and authority to do and perform all and every act
and thing whatsoever requisite, necessary and proper to be done in
the exercise of any of the rights and powers herein granted, as fully
to all intents and purposes as the undersigned might or could do if
personally present, with full power of substitution or revocation,
hereby ratifying and confirming all that such attorney-in-fact, or
his substitute or substitutes, shall lawfully do or cause to be done
by virtue of this power of attorney and the right and powers herein
granted.  The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming any of the undersigned?s
responsibilities to comply with Section 16 of the Securities
Exchange Act of 1934. Unless earlier revoked in a signed writing,
the undersigned grants such power and authority to remain in
effect until such time as he or she is no longer required to file
Forms 3, 4 or 5.

IN WITNESS WHEREOF, the undersigned has caused
this Power of Attorney to be executed as of this 8th day of
September, 2020.


				/s/ Li Fang