Wulfsohn 69 AVIENT CORPORATION [This page intentionally left blank] [This page intentionally left blank] [This page intentionally left blank] STOCK EXCHANGE LISTING Avient's Common Stock is listed on the New York Stock Exchange, Symbol: AVNT SHAREHOLDER INQUIRIES If you have any questions concerning your account as a shareholder, name or address changes, inquiries regarding stock certificates, or if you need tax information regarding your account, please contact our transfer agent: Equiniti Trust Company 1110 Centre Pointe Curve, Suite 101 Mendota Heights, MN 55120-4100 Phone: 1-855-598-2615 or 1-651-450-4064 www.shareowneronline.com Additional information about Avient, including current and historic copies of Annual Reports on Form 10-K and other reports filed with the Securities and Exchange Commission, is available online at www.avient.com or free of charge from: Investor Relations 33587 Walker Road Avon Lake, Ohio 44012 Phone: 1-440-930-1000 ANNUAL MEETING The annual meeting of Avient will be held virtually via live webcast at 9:00 a.m.

The reports, proxy statements and other information we file may be inspected and copied at prescribed rates at the SEC’s Public Reference Room and via the SEC’s website (see below for more information). Our filings are available to the public at the SEC’s website at http://www.sec.gov.

The reports, proxy statements and other information we file may be inspected and copied at prescribed rates at the SEC’s Public Reference Room and via the SEC’s website (see below for more information). Our filings are available to the public at the SEC’s website at http://www.sec.gov.

The reports, proxy statements and other information we file may be inspected and copied at prescribed rates at the SEC’s Public Reference Room and via the SEC’s website (see below for more information). Our filings are available to the public at the SEC’s website at http://www.sec.gov.

The reports, proxy statements and other information we file may be inspected and copied at prescribed rates at the SEC’s Public Reference Room and via the SEC’s website (see below for more information). Our filings are available to the public at the SEC’s website at http://www.sec.gov.

Für Hinweise gemäß der Allgemeinen Datenschutzgrundverordnung (Regulation (EU) http://www.avient.com/ 19 2016/679) sollte der Käufer die Website des Verkäufers unter www.avient.com einsehen. 26.

Cutting-edge liquid toner for polycarbonate resins that provides visual clarity for PC and improves aesthetics on the product surface

The reports, proxy statements and other information we file are available to the public at the SEC’s website at http://www.sec.gov.