Webcast Details The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media- server.com/mmc/p/yrq7mgm9.To participate in the audio-only portion of the call, dial 1-844-835- 7433 (domestic) or 1-914-495-8589 (international) and provide conference ID number 7899765. http://www.avient.com/investors https://edge.media-server.com/mmc/p/yrq7mgm9 https://edge.media-server.com/mmc/p/yrq7mgm9 http://www.avient.com/investors 3 Full Year Comparisons Pro Forma for Acquisition of Clariant’s Color Business The company acquired Clariant’s color (“Clariant Color”) business on July 1, 2020 (the “Acquisition Date”). # # http://www.avient.com/ 4 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

Webcast Details The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media- server.com/mmc/p/k7okojz2. http://www.avient.com/investors https://edge.media-server.com/mmc/p/k7okojz2 https://edge.media-server.com/mmc/p/k7okojz2 http://www.avient.com/investors 4 About Avient Avient Corporation (NYSE: AVNT), with 2021 revenues of $4.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. # # https://www.avient.com/ 5 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

Este Aviso de privacidad del Candidato ("Aviso") establece cómo Avient recopila, usa o revela datos personales de los solicitantes de empleo y candidatos (colectivamente, "usted") cuando usted accede o usa nuestros sitios web de carreras, incluyendo https://avient.referrals.selectminds.com/ (los “Sitios”). Tenga en https://edpb.europa.eu/about-edpb/board/members_en cuenta que la ley aplicable puede requerir que Avient conserve su curriculum vitae durante un periodo específico incluso si usted solicita que Avient no considere su candidatura para el empleo. 8. mailto:PRIVACY.OFFICER@AVIENT.COM https://privacyportal.onetrust.com/webform/b25cf7b1-a93a-4d26-8c84-ceda4d0ae91b/e180cbe4-d1b9-49bd-b621-cb5f6a0f42cb https://privacyportal.onetrust.com/webform/b25cf7b1-a93a-4d26-8c84-ceda4d0ae91b/e180cbe4-d1b9-49bd-b621-cb5f6a0f42cb mailto:PRIVACY.OFFICER@AVIENT.COM ** En el caso de los candidatos de Perú, los datos personales se conservarán en el banco de datos"[avient.taleo.net]" registrado en el Registro Nacional de Protección de Datos Personales, con el código RNPDP-PJP, N.º [*].”

https://www.avient.com/investors https://edge.media-server.com/mmc/p/pyh3w2ip/ https://www.avient.com/investors https://register.vevent.com/register/BId7a8a09515a442e9b13c4d5558d927fe https://www.avient.com/investors/events-presentations 4 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. For more information, visit https://www.avient.com/. 5 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/cesa-light-additives Slide 1: PP NONWOVEN MANUFACTURER

https://www.avient.com/products/polymer-colorants/healthcare-colorants/mevopur-healthcare-colorants-and-formulations Slide 1: Medical textile manufacturer

https://www.avient.com/products/advanced-composites/continuous-fiber-composite-panels/crtm-panels

Provided excellent dispersion with highly concentrated TiO2 • Offered customized solutions to achieve customer request on TiO2 % @ 80% • Maintained good light fastness https://www.avient.com/products/polymer-colorants Slide 1: EXTRUSION FILM MANUFACTURER

LEARN MORE https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/maxxam-fr-flame-retardant-polyolefin-formulations

https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-cross-linkable-solutions