Factors that could cause actual results to differ materially from those implied by these forward- looking statements include, but are not limited to: 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 effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; disruptions or inefficiencies in our supply chain, logistics, or operations; changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; fluctuations in raw material prices, quality and supply, and in energy prices and supply; demand for our products and services; 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; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts, tariffs and any recessionary conditions.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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 effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Changes in laws and regulations regarding plastics in jurisdictions where we conduct business; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, any recessionary conditions, and terrorism or hostilities Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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 effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • The current and potential future impact of the COVID-19 pandemic on our business, results of operations, financial position or cash flows, including without any limitation, any supply chain and logistics issues; • Our ability to achieve the strategic and other objectives relating to the acquisition of Clariant’s Color business, including any expected synergies; • Changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; • 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 the anticipated financial benefit from initiatives related to acquisition and integration working capital reductions, cost reductions and employee productivity goals; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Our ability to consummate and successfully integrate acquisitions; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors described in our Annual Report on Form 10-K for the year ended December 31, 2020 under Item 1A, “Risk Factors.”

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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 effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Changes in laws and regulations regarding plastics in jurisdictions where we conduct business; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include 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 effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; the current and potential future impact of the COVID-19 pandemic on our business, results of operations, financial position or cash flows; our ability to achieve the strategic and other objectives relating to the acquisition of Clariant's Masterbatch business, including any expected synergies; changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; 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 the anticipated financial benefit from initiatives related to acquisition and integration working capital reductions, cost reductions and employee productivity goals; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; our ability to consummate and successfully integrate acquisitions; and amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions.

Lorsque vous postulez à un emploi, vous pouvez fournir des informations personnelles, notamment : https://avient.referrals.selectminds.com/ mailto:HR@polyone.com • Des identifiants et des coordonnées tels que votre nom, votre date de naissance, votre adresse personnelle, votre adresse e-mail, votre numéro de téléphone, les identifiants gouvernementaux (tels que votre numéro de permis de conduire ou d'identification national) ; • Des informations de connexion, y compris votre adresse électronique, votre nom d'utilisateur et votre mot de passe lorsque vous vous connectez pour soumettre votre candidature ; • Des données protégées, dans la mesure où la loi applicable le permet, telles que votre sexe, votre race et votre origine ethnique ; • Des informations professionnelles ou liées à l'emploi, telles que votre CV, vos antécédents professionnels, vos qualifications, l'emploi pour lequel vous souhaitez postuler, vos références professionnelles, votre salaire actuel, vos primes, vos attentes salariales ou toute autre information que vous choisissez de fournir, y compris les informations relatives à toute candidature antérieure que vous avez pu nous soumettre ou à toute expérience professionnelle antérieure avec Avient, vos affiliations ou adhésions professionnelles, et la date de début souhaitée ; • Des informations sur votre formation, telles que votre parcours scolaire, vos relevés de notes, vos antécédents en matière de diplôme et de formation, votre maîtrise de l'anglais qui peut être exigée pour certains postes, vos compétences linguistiques et techniques, des certificats ; et • D'autres informations personnelles que vous choisissez de nous communiquer dans le cadre de votre candidature, telles que les coordonnées de vos références, les informations divulguées lors d'un entretien ou votre situation personnelle.

Row 9 (7.30.17.1) Country/area of consumption of purchased renewable electricity Select from: ☑ Indonesia (7.30.17.2) Sourcing method Select from: 329 ☑ Unbundled procurement of Energy Attribute Certificates (EACs) (7.30.17.3) Renewable electricity technology type Select from: ☑ Geothermal (7.30.17.4) Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 841 (7.30.17.5) Tracking instrument used Select from: ☑ Other, please specify :REC - indonesia (7.30.17.6) Country/area of origin (generation) of purchased renewable electricity Select from: ☑ Indonesia (7.30.17.7) Are you able to report the commissioning or re-powering year of the energy generation facility? Row 16 (7.30.17.1) Country/area of consumption of purchased renewable electricity Select from: ☑ China (7.30.17.2) Sourcing method Select from: ☑ Retail supply contract with an electricity supplier (retail green electricity) (7.30.17.3) Renewable electricity technology type Select from: ☑ Solar (7.30.17.4) Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 25453.6 (7.30.17.5) Tracking instrument used Select from: ☑ Contract 334 (7.30.17.6) Country/area of origin (generation) of purchased renewable electricity Select from: ☑ China (7.30.17.7) Are you able to report the commissioning or re-powering year of the energy generation facility? Row 19 (7.30.17.1) Country/area of consumption of purchased renewable electricity Select from: ☑ Sweden (7.30.17.2) Sourcing method Select from: ☑ Retail supply contract with an electricity supplier (retail green electricity) 337 (7.30.17.3) Renewable electricity technology type Select from: ☑ Hydropower (capacity unknown) (7.30.17.4) Renewable electricity consumed via selected sourcing method in the reporting year (MWh) 1836.44 (7.30.17.5) Tracking instrument used Select from: ☑ Contract (7.30.17.6) Country/area of origin (generation) of purchased renewable electricity Select from: ☑ Sweden (7.30.17.7) Are you able to report the commissioning or re-powering year of the energy generation facility?

Avient Launches Medical TPE Grades Formulated Without Animal Derivatives New Technology from Avient Helps Trace Origin of Fibers in Polyester and Polyamide Textiles

PROXY SUMMARY 4 PROXY STATEMENT 2022 | Annual Meeting of Shareholders OUR COMPANY CULTURE Avient Corporation was originally established as PolyOne Corporation in 2000. We consider diversity to include differences in race, gender, national origin, ethnicity, nationality, and sexual orientation, as well as differences in viewpoint, background, experience and skills. At that time, we viewed the targeted level of performance for each original measure as challenging to achieve.

This renewed awareness for Received: 27 April 2021 Revised: 29 July 2021 Accepted: 21 September 2021 DOI: 10.1002/pen.25815 This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. © 2021 Avient Corporation.