Energy Management To continuously track progresses made toward achieving environmental goals, Avient has implemented a reporting program that can be found here. Financial Report Our most recent Financial Report can be found here. Information that Avient considers as confidential and will not communicate through questionnaires:  Building and facilities figures  Workforce effective  Organization charts  Shift organization  Unions affiliations  Customers  Suppliers  Procedures  Work instructions  Quality Manuals  FMEA/CCP  Control plans http://www.avient.com/company/sustainability/environmental/global-iso-certificate-library https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/company/sustainability/sustainability-report/people/human-rights https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/company/policies-and-governance-0/global-iso-certificate-library https://www.avient.com/resources/safety-data-sheets https://www.avient.com/resources/technical-data-sheets https://www.avient.com/company/sustainability/people/safety https://www.avient.com/company/sustainability/sustainability-report/planet/energy-ghg-emissions https://www.avient.com/investors/investor-news?

It is a remarkable achievement that we are proud of, yet we are still enthusiastic about building upon. (1) Adjusted EPS reported in this proxy statement differs from what is reported under United States GAAP. See Appendix A for an explanation of management’s use of non-GAAP financial measures and a reconciliation of non- GAAP financial measures to our results as reported under GAAP. Requests for copies of such Annual Report on Form 10-K or for information on how to obtain directions to be able to attend the Annual Meeting and vote in person should be directed to: PolyOne Center, 33587 Walker Road, Avon Lake, Ohio 44012, Attention: Secretary.

Our full regulatory support enables customers to navigate and comply with complex reporting requirements such as REACH, RoHs, Prop 65, Class VI, FDA etc., essential to compete in today’s global economy. Values reported as “typical” or stated without a range do not state minimum or maximum properties; consult your sales representative for property ranges and min/max specifications. Values reported as “typical” or stated without a range do not state minimum or maximum properties; consult your sales representative for property ranges and min/max specifications.

La conformité d’Avient aux exigences de reporting et autres normes établies par la loi est tout aussi importante. Les processus de reporting financier de la société contiennent des contrôles comptables internes, conçus afin de produire des rapports financiers et autres informations financières fiables. Chacun d’entre nous, et plus spécifiquement les membres du service des finances, est tenu de signaler toute affaire comptable ou d’audit qui semble contourner la préparation de rapports financiers fiables ou le système de contrôle interne, et signaler toute autre préoccupation concernant des affaires comptables ou d’audit douteuses.

Chacun d’entre nous, et plus spécifiquement les membres du service des finances, est tenu de signaler toute affaire comptable ou d’audit qui semble contourner la préparation de rapports financiers fiables ou le système de contrôle interne, et signaler toute autre préoccupation concernant des affaires comptables ou d’audit douteuses. CODE DE CONDUITE | 27 TABLE DES MATIÈRES INTRODUCTION NOTRE CODE DE CONDUITE RESPECT POUR TOUS HONNÊTETÉ AU TRAVAIL INTÉGRITÉ DANS NOTRE ACTIVITÉ RESPONSABILITÉ SOCIALE D’ENTREPRISE RESSOURCES https://www.avient.com/company/sustainability/sustainability-report http://avient.com/sustainability https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge-0 Q&R Q : Mon superviseur m’a demandé de suivre une nouvelle procédure de mise au rebut des déchets, mais je ne suis pas certain qu’elle soit sans danger ni même légale. Si vous avez des doutes sur ce qu’il convient de faire, posez des questions et continuez de les poser jusqu’à ce que vous soyez certains que vous faites ce qu’il convient CODE DE CONDUITE | 29 TABLE DES MATIÈRES INTRODUCTION NOTRE CODE DE CONDUITE RESPECT POUR TOUS HONNÊTETÉ AU TRAVAIL INTÉGRITÉ DANS NOTRE ACTIVITÉ RESPONSABILITÉ SOCIALE D’ENTREPRISE RESSOURCES https://www.avient.com/sites/default/files/2021-07/avient-human-rights-position-statement-updated-july-2021.pdf Contacts internes - Ressources en matière d’éthique et de conformité Pour plus d’informations sur le Code ou nos attentes, veuillez contacter directement les ressources suivantes : • Votre superviseur ou tout responsable d’Avient • Votre représentant des ressources humaines ou le département des ressources humaines • Le directeur de l’éthique d’entreprise • Tout membre du département juridique • La fonction jouissant de l’expertise appropriée (par exemple, finance du groupe, audit interne ou approvisionnements) Ligne d’assistance liée à l’éthique Appelez ou utilisez la ligne d’assistance liée à l’éthique si : • Vous avez besoin d’un conseil ou avez une question ; • Vous souhaitez signaler un problème ou une préoccupation ; • Vous avez signalé un problème ou une préoccupation, mais n’avez pas été satisfait ; • Vous avez des doutes sur la personne à qui vous adresser pour obtenir des informations ; • Vous êtes gêné à l’idée d’utiliser l’une des autres ressources mentionnées dans le Code.

Process reporting Advice and direction on where production efficiencies can be achieved through applying Avient technologies. Full on-site technical support Process reporting Regulatory advice and documentation Custom dosing systems Rapid color development Colorant and additive technologies COLOR IS GLOBAL At Avient we think a lot about plastics: how to make them process better, perform better, look better and be kinder to the planet. Values reported as “typical” or stated without a range do not state minimum or maximum properties; consult your sales representative for property ranges and min/max specifications.

Global Compact & fulfilled Communication of Progress (COP) requirements • New Sustainability Strategy overview page including our 2022 AIP ESG metrics • New ESG Performance page with ESG ratings, awards, and certifications • Increased disclosures on carbon emissions, including disclosure of Climate Change Scenario Analysis • Added new Product Stewardship and Chemical Management policies • Enhanced data reporting for Workforce Demographics • Improved social disclosures on human rights, dependent care and special leave and strategic training management 2021 SUSTAINABILITY REPORT Launching integrated sustainability website in parallel with report Aligned with leading reporting frameworks 6 Released July 2022 ESG RATINGS PERFORMANCE ESG AWARDS AND CERTIFICATIONS ESG PERFORMANCE & AWARDS 84th 3 1 2 7 T RAN S FO R MAT IO NAL OVE RV IE W Avient Protective Materials Dyneema ® RECENT TRANSACTIONS Acquired Divested $1.45 B $0.95 B 9 Distribution UPDATED CAPITAL STRUCTURE & LIQUIDITY • Proceeds from completed sale of Distribution used to pay near-term maturing debt to strengthen balance sheet • Fixed/floating debt ratio of ~55/45 • Proven track record of deleveraging following major acquisitions through strong free cash flow generation • 2022 pro forma net debt/adjusted EBITDA expected to be 3.1x $725 $725 $575 $500 $600 $525 $650 $650 $600 Capital Structure Cas h $544 Undr awn Rev olve r $250 Liquidity $3.15B $2.40B 2030 Notes 2029 Term Loan 2026 Term Loan 2025 Notes 2023 Notes After Dyneema Acquisition After Distribution Divestiture $794M (1) (1) $250M reflects estimated undrawn revolver following the divestiture of Distribution 10 PREVIOUS TRANSACTIONS Performance Solutions Products & $0.8 B COLOR $1.4 B Acquired (2020)Divested (2019) 11 • Acquisition of Clariant Color business significantly expanded presence in healthcare, packaging and consumer end markets • Strength of portfolio – double-digit annual EBITDA growth since acquisition • $75 million of realized synergies anticipated in 2022 • Acquisition completed on July 1, 2020 for $1.45 billion.

Process reporting Advice and direction on where production efficiencies can be achieved through applying Avient technologies. Full on-site technical support Process reporting Regulatory advice and documentation Custom dosing systems Rapid color development Colorant and additive technologies COLOR IS GLOBAL At Avient we think a lot about plastics: how to make them process better, perform better, look better and be kinder to the planet. Values reported as “typical” or stated without a range do not state minimum or maximum properties; consult your sales representative for property ranges and min/max specifications.

Process reporting Advice and direction on where production efficiencies can be achieved through applying Avient technologies. Full on-site technical support Process reporting Regulatory advice and documentation Custom dosing systems Rapid color development Colorant and additive technologies COLOR IS GLOBAL At Avient we think a lot about plastics: how to make them process better, perform better, look better and be kinder to the planet. Values reported as “typical” or stated without a range do not state minimum or maximum properties; consult your sales representative for property ranges and min/max specifications.

Climate Change As more scientific reports continue to warn of the urgent and impending effects of climate change, implementation of circular economics can be a powerful step towards helping to solve the world’s climate crisis. SOURCE: https://www.sourcetoday.com/supply-chain/article/21142961/four-challenges-standing-in-the-way- of-a-circular-economy Report According to the 2021 Circularity Gap Report, our global economy is only 8.6% circular. The report also identifies strategies for nearly doubling that figure to 17% by 2030 by identifying sectors with a high potential for change.