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: Wells Fargo Shareowner Services 1110 Centre Pointe Curve, Suite 101 Mendota Heights, MN 55120-4100 Phone: 1-855-598-2615 www.shareowneronline.com Additional information about PolyOne, 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.polyone.com or free of charge from: Investor Affairs Administrator PolyOne Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 440-930-1522 ANNUAL MEETING The annual meeting of shareholders of PolyOne will be held May 14, 2015 at 9:00 a.m. at PolyOne’s Corporate headquarters, 33587 Walker Road, Avon Lake, Ohio. FINANCIAL INFORMATION Security analysts and representatives of financial institutions are invited to contact: Eric Swanson Director, Investor Relations Phone: 440-930-1013 Fax: 440-930-1446 Email: eric.swanson@polyone.com AUDITORS Ernst & Young LLP 950 Main Ave., Suite 1800 Cleveland, OH 44113 INTERNET ACCESS Information on PolyOne’s products and services, news releases, corporate governance, EDGAR filings, Reports on Forms 10-K and 10-Q, etc. as well as an electronic version of this annual report, are available on the Internet at www.polyone.com.

Box 43078 Providence, Rhode Island 02940-3078 Phone: 877-498-8861 www.computershare.com Additional information about PolyOne, including current and historic copies of Form 10-K and other reports filed with the Securities and Exchange Commission, is available online at www.polyone.com or free of charge from: Investor Affairs Administrator PolyOne Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 440-930-1522 ANNUAL MEETING The annual meeting of shareholders of PolyOne Corporation will be held May 9, 2012 at 9:00 a.m. at the LACENTRE Conference and Banquet Facility, Champagne C Ballroom, 25777 Detroit Road, Westlake, Ohio. Tomasch Vice President, Planning and Investor Relations Phone: 440.930.3155 Fax: 440.930.1446 E-mail: cynthia.tomasch@polyone.com AUDITORS Ernst & Young LLP 925 Euclid Avenue, Suite 1300 Cleveland, Ohio 44115-1476 INTERNET ACCESS Information on PolyOne’s products and services, news releases, corporate governance, EDGAR filings, Forms 10-K and 10-Q, etc., as well as an electronic version of this annual report, are available on the Internet at www.polyone.com.

AVIENT CORPORATION 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 Avient Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 440-930-1000 ANNUAL MEETING The annual meeting of shareholders of Avient will be held virtually on May 12, 2022 at 9:00 a.m. FINANCIAL INFORMATION Security analysts and representatives of financial institutions are invited to contact: Joe Di Salvo Vice President, Treasurer and Investor Relations Phone: 440-930-1921 Email: giuseppe.disalvo@avient.com AUDITORS Ernst & Young LLP 950 Main Ave., Suite 1800 Cleveland, OH 44113 INTERNET ACCESS Information on Avient’s products and services, news releases, corporate governance, EDGAR filings, Reports on Forms 10-K and 10-Q, etc. as well as an electronic version of this annual report, are available on the Internet at www.avient.com.

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 PolyOne, 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.polyone.com or free of charge from: Investor Affairs Administrator PolyOne Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 440-930-1000 ANNUAL MEETING The annual meeting of shareholders of PolyOne will be held May 16, 2019 at 9:00 a.m. at PolyOne’s Corporate headquarters, 33587 Walker Road, Avon Lake, Ohio. FINANCIAL INFORMATION Security analysts and representatives of financial institutions are invited to contact: Joe Di Salvo Vice President, Investor Relations Phone: 440-930-1921 Email: giuseppe.disalvo@polyone.com AUDITORS Ernst & Young LLP 950 Main Ave., Suite 1800 Cleveland, OH 44113 INTERNET ACCESS Information on PolyOne’s products and services, news releases, corporate governance, EDGAR filings, Reports on Forms 10-K and 10-Q, etc. as well as an electronic version of this annual report, are available on the Internet at www.polyone.com.

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: Wells Fargo Shareowner Services 1110 Centre Pointe Curve, Suite 101 Mendota Heights, MN 55120-4100 Phone: 1-855-598-2615 www.shareowneronline.com Additional information about PolyOne, 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.polyone.com or free of charge from: Investor Affairs Administrator PolyOne Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 440-930-1522 ANNUAL MEETING The annual meeting of shareholders of PolyOne will be held May 15, 2014 at 9:00 a.m. at PolyOne’s Corporate headquarters, 33587 Walker Road, Avon Lake, Ohio. DeLuca Vice President, Investor Relations Phone: 440-930-1226 Fax: 440-930-1446 Email: isaac.deluca@polyone.com AUDITORS Ernst & Young LLP 950 Main Ave., Suite 1800 Cleveland, OH 44113 INTERNET ACCESS Information on PolyOne’s products and services, news releases, corporate governance, EDGAR filings, Reports on Forms 10-K and 10-Q, etc. as well as an electronic version of this annual report, are available on the Internet at www.polyone.com.

En fonction des lois de votre pays, celles-ci peuvent inclure : • la race ; • la religion ; • le sexe ; • l’origine ethnique ou l’ascendance ; • l’âge ; • l’orientation sexuelle ; • le statut militaire ou de vétéran ; • le statut marital, familial ou civil ; • un handicap • une grossesse et une maternité • la nationalité. 10 Table des matières La toxicomanie/L’alcoolisme Il nous incombe à tous de prendre des mesures pour nous assurer que nous travaillons dans un environnement exempt de tous les effets de l’alcool et des drogues illégales et autres substances contrôlées.

En fonction des lois de votre pays, celles-ci peuvent inclure : • La race ; • La religion ; • Le sexe ; • L’origine ethnique ou l’ascendance ; • L’âge ; • L’orientation sexuelle ; • Le statut militaire ou de vétéran ; • Le statut marital, familial ou civil ; • Un handicap • Une grossesse et une maternité • La nationalité.

In 2020 alone we launched 10 new sustainable product families. 100% of Avient’s R&D budget is used to address customer demand, which increasingly Avient CDP Climate Change Questionnaire 2021 Tuesday, August 3, 2021 25 includes sustainable solutions.