Vice President and Treasurer of Novelis, Inc. Vice President, Controller and Chief Accounting Officer of Novelis from 2006 to 2007. 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.

Vice President and Treasurer of Novelis, Inc. Vice President, Controller and Chief Accounting Officer of Novelis from 2006 to 2007. 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.

Virgin Pulse Further supporting the wellness of our associates, we offer Virgin Pulse, an interactive, multi-faceted online platform that connects and inspires associates to make healthy, informed decisions. Through Avient Academy, associates can participate in classroom, online, and webinar based training sessions. Various levels of training are provided, depending on prior commercial experience and need, and participants train collaboratively—both online and regionally in-person to maximize collaborative learning.

Du kan välja att lämna din rapport online eller tala med någon genom att ringa de telefonnummer som anges för ditt land. Ett oberoende bolag tar emot alla online- och telefonrapporter som kommer in till Ethics Hotline och rapporterar informationen till Corporate Ethics Officer.

Sie können Ihre Meldung online machen oder über die für Ihr Land angegebenen Telefonnummern mit jemandem sprechen. Dies beinhaltet Online- Kommunikationen und Soziale Medien.

U hebt toegang tot de Ethiekhotline door op onze intranetsite, The Loop, in de sectie Mensen en afdelingen, Ethiek en bedrijfsbeleid of op Avient. com, in de zoekbalk, Ethiekhotline in te voeren U kunt ervoor kiezen om uw melding online te doen of om met iemand te spreken via de telefoonnummers die voor uw land vermeld staan. Dit omvat online communicatie en sociale media.

Vice President and Treasurer of Novelis, Inc. Vice President, Controller and Chief Accounting Officer of Novelis from 2006 to 2007. 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 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 11, 2023 at 9:00 a.m.

This includes online communications and social media.

 Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  Our ability to realize anticipated savings and operational benefits from the realignment of assets, including the planned closure of certain manufacturing facilities;  The timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts;  Separation and severance amounts that differ from original estimates and amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates;  Our ability to identify and evaluate acquisition targets and consummate acquisitions;  The ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies and retain relationships with customers of acquired companies including, without limitation, Spartech Corporation and Accella Performance Materials;  Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future;  The financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks;  Changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic materials in jurisdictions where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online in the industries in which we participate;  Fluctuations in raw material prices, quality and supply and in energy prices and supply;  Production outages or material costs associated with scheduled or unscheduled maintenance programs;  Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  Our ability to continue to pay regular quarterly cash dividends and the amounts and timing of any future dividends;  The amount and timing of repurchases of our common shares, if any;  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation  The above list of factors is not exhaustive.  We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

Virgin Pulse Further supporting the wellness of our associates, we offer Virgin Pulse, an interactive, multi-faceted online platform that connects and inspires associates to make healthy, informed decisions. Through Avient Academy, associates can participate in classroom, online, and webinar based training sessions. Various levels of training are provided, depending on prior commercial experience and need, and participants train collaboratively—both online and regionally in-person to maximize collaborative learning.