AVIENT CORPORATION

Instrument of Substitution of Attorney-in-Fact

            KNOW ALL BY THESE PRESENTS, that the undersigned, as
attorney-in-fact under a duly authorized and executed Power of Attorney filed
with the U.S. Securities and Exchange Commission (the ?SEC?) on June 1, 2021
(the ?Power of Attorney?) for Vinod Purayath (the ?Insider?), hereby
constitutes and appoints (pursuant to the substitution authority granted to the
undersigned pursuant to such Power of Attorney (the ?Substitution Authority?))
each of Jamie A. Beggs, Kristen A. Gajewski, Robert K. James, and Lorraine E.
Gaulding, signing individually, as a true and lawful attorney-in-fact for the
Insider, and as a substitute for the undersigned, to: 1. Prepare, execute in
the Insider?s name and on the Insider?s behalf, and submit to the SEC a Form
ID, including amendments thereto, and any other documents necessary or
appropriate to obtain codes and passwords enabling the undersigned to make
electronic filings with the SEC of reports required by Section 16(a) of the
Securities Exchange Act of 1934 or any rule or regulation of the SEC; and 2.
Execute for and on behalf of the Insider, in the Insider?s capacity as an
officer and/or director of Avient Corporation (the ?Corporation?), Forms 3, 4,
and 5 in accordance with Section 16(a) of the Securities Exchange Act of 1934
and the rules and regulations thereunder; and 3. Do and perform any and all
acts for and on behalf of the Insider which may be necessary or desirable to
complete and execute any such Form 3, 4, or 5 and timely file such form with
the SEC and any stock exchange or similar 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 Insider, it being understood that the documents
executed by such attorney-in-fact on behalf of the Insider pursuant to the
Power of Attorney and this Instrument of Substitution of Attorney-in-Fact shall
be in such form and shall contain such terms and conditions as such
attorney-in-fact may approve in such attorney-in-fact?s discretion. The
undersigned, pursuant to the Substitution Authority, hereby grants to each such
attorney-in-fact full power and authority to do and perform any and every act
and thing whatsoever requisite, necessary, or proper to be done in the exercise
of any of the rights and powers granted to the undersigned under the Power of
Attorney, as fully to all intents and purposes as the Insider 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 such
attorney-in-fact?s substitute or substitutes, shall lawfully do or cause to be
done by virtue of the Power of Attorney and this Instrument of Substitution of
Attorney-in-Fact (and the rights and powers therein granted). The undersigned
acknowledges that the foregoing attorneys-in-fact, in serving in such capacity
pursuant to the Substitution Authority, are not assuming, nor is the
Corporation assuming, any of the Insider?s responsibility to comply with
Section 16 of the Securities Exchange Act of 1934. This Instrument of
Substitution of Attorney-in-Fact shall remain in full force and effect until
the Insider is no longer required to file Forms 3, 4, and 5 with respect to the
Insider?s holdings of and transactions in securities issued by the Corporation,
unless earlier revoked by the Insider in a signed writing delivered to the
foregoing attorneys-in-fact. IN WITNESS WHEREOF, the undersigned has caused
this Instrument of Substitution of Attorney-in-Fact to be executed as of this
24th day of January 2024. /s/ Lisa K. Kunkle Lisa K. Kunkle, attorney-in-fact
for Insider