A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year. https://www.avient.com/investors https://edge.media-server.com/mmc/p/3u462yxq/ https://www.avient.com/investors https://register.vevent.com/register/BIfa0de3bdf9964987b4d7a1c21860e063 https://www.avient.com/investors/events-presentations 3 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year. https://www.avient.com/investors https://edge.media-server.com/mmc/p/tay7mbuw/ https://www.avient.com/investors https://register-conf.media-server.com/register/BI648915d05d0c44c4bdef681472840ace https://www.avient.com/investors/events-presentations 3 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year. https://www.avient.com/investors https://edge.media-server.com/mmc/p/uxwr6azx/ https://www.avient.com/investors https://register-conf.media-server.com/register/BI382391ef65ac4be8a89542609691ae56 https://www.avient.com/investors/events-presentations 3 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

STOCK PERFORMANCE PolyOne’s stock performance has significantly outpaced the S&P 500 index and the S&P Mid Cap Chemicals index. PolyOne Stock Performance The following is a graph that compares the cumulative total shareholder returns for PolyOne’s common shares, the S&P 500 index and the S&P Mid Cap Chemicals index, with dividends assumed to be reinvested when received. The S&P Mid Cap Chemicals index includes a broad range of chemical manufacturers.

A menos que tenga la aprobación previa del Departamento Jurídico de Avient para ello, no ofrezca a distintos distribuidores o clientes independientes del mismo nivel de distribución diferentes precios, descuentos, reducciones u otras condiciones de venta por los mismos productos o productos similares, a menos que sea necesario hacerlo para cumplir precios o condiciones de venta similares documentados ofrecidos a dicho distribuidor por un competidor, o bien haya un menor coste que se pueda demostrar para atender al cliente al que se le ha ofrecido el menor precio (p. ej., menor coste de envío debido a la proximidad del cliente).

Preete P. Nicolas P. Preete 38,612 P.

The folff lowing chart compares cumulative total shareholder return (“TSR”) on our common shares against the cumulative total return of the S&P 500 Index and the S&P Mid Cap Chemicals Index for the fivff e-year period December 31, 2011 to December 31, 2016, assuming in each case a fixff ed investment of $100 and reinvestment of all dividends. Comparison of Cumulative Total Return to Shareholders PolyOne Corporation S&P 500 Index S&P Mid Cap Chemicals POL 0% 25% 50% 75% 100% 0% 25% 50% 75% 100% Co m pe ns at io n % ile 2014 - 2016 TSR Performance %ile Peer Group Pay vs. p) “Incentive Stock Options” means Option Rights that are intended to qualify as “incentive stock options” under Section 422 of the Code or any successor provision.

Avient Stock Performance The following is a graph that compares the cumulative total shareholder returns for Avient’s common shares, the S&P 500 index and the S&P Mid Cap Chemicals index, with dividends assumed to be reinvested when received. The S&P Mid Cap Chemicals index includes a broad range of chemical manufacturers. Committees: 1, 2 A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2022 Challenge Accepted.

ANNUAL REPORT 2021 CREATING A WORLD-CLASS, SUSTAINABLE ORGANIZATION A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2021 CORPORATE OFFICERS ROBERT M. The S&P Mid Cap Chemicals index includes a broad range of chemical manufacturers. AVIENT.COM A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2021

Preete P. Nicolas P. Preete 38,612 P.