Personal Values INTEG IT Y R SP ECT H O N E S T Y Core Values COLLABO E X EL LE NCE INNOVATION OUR CULTURE 1 Annual Report | 2021 2 0 2 1 Dear Avient Shareholders, 2021 was our first full year as Avient Corporation. BEGGS Senior Vice President and Chief Financial Officer (Principal Financial and Accounting Officer) /S/ ROBERT E. ABERNATHY Director February 22, 2022 Robert E.

Garratt 51 Senior Vice President, President of Performance Products and Solutions Michael E. Michael E. JOHNSON Vice President, Tax MICHAEL E.

A N N U A L R E P O R T 2 0 1 6P A R 2 PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions. CONTROLS AND PROCEDURES Disclosure controls and procedures PolyOne’s management, with the participation of the Chief Executive Officer and the Chief Financial Officer, has evaluated the effectiveness of the design and operation of PolyOne’s disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934) as of December 31, 2016. The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have: (a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared; (b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles; (c) Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and (d) Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and 5.

FORCE MAJEURE Chacune des parties pourra suspendre l'exécution du présent contrat (sauf le paiement d'un Produit déjà reçu) en cas de : (1) catastrophe naturelle, incendie, inondation, ouragan ; (2) grèves, lock-out ou autre perturbation industrielle ou émeute ; (3) guerre, déclarée ou non ; (4) conformité avec tout(e) loi, règlement, décret ou jugement, étranger ou interne, y compris notamment toute restriction des licences d'exportation, injonction de priorité, rationnement, attribution ou préemption ou annulation de la licence - 5 - PAI-376900v1 the party having the difficulty, and the above requirements for remedy of any force majeure with all reasonable dispatch shall not require the settlement of strikes or lockouts by acceding to the demands of the employees involved, when deemed inadvisable by the party having the labor difficulty. 11.

El hecho de que el Comprador no dé tal aviso dentro del plazo de tiempo aplicable constituirá una renuncia absoluta e incondicional de todos esos reclamos. Si las partes no pueden ponerse de acuerdo e implementar tales cambios dentro de los sesenta (60) días calendario después de dicho aviso, el Vendedor tendrá entonces el derecho de terminar este contrato de inmediato mediante notificación escrita al Comprador. 8.

Richardson      /S/ ROBERT E. ABERNATHY Robert E. Goff, Robert E.

Adjusted EBITDA from Specialty Applications % o f A d ju st d E B IT D A Commodity JV’s Performance Products & Solutions Distribution Specialty Businesses Specialty Transformation Expands Margin Profile (1) Pro forma for the acquisition of Clariant Color (2) Pro forma for the acquisition of APM and divestiture of Distribution 0% 40% 80% 2005 2010 2015 2020PF(1) 2022PF(2) 7% 46% 66% 87% Adjusted EBITDA Margins ���� ���� 16.2% 11.5% 5.4% 2006 2018 2022PF(2) HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 74Sustainability Report | 2022 74 Performance Overview With the acquisition of Dyneema®, the world’s strongest fiber, and divestiture of Distribution, 2022 was a pivotal and progressive year for Avient and our vision to be a world-class, sustainable organization. End Market Transformation(1) 2006 2022PF(2) 2006 2022PF(2) Building & Construction Packaging Consumer 57% 19% 58% 22% 14% 43% 9% Defense (1) End market revenue as a percent of total company revenues (2) Pro forma for the acquisition of APM and divestiture of Distribution Increased End Market Diversification Provides Sustained EPS Growth Adjusted EPS Growth 2006 2018 2022PF(2) $2.67 $0.14 $3.04 E n in g s P r S h e HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2022 75Sustainability Report | 2022 75 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (1Pro Forma to include full year of the Clariant Color business (2)Pro Forma for the acquisition of APM and the divestiture of Distribution Revenue from Sustainable Solutions* 2016–2022 Lightweighting Eco-conscious Sustainable Infrastructure Human Health & Safety Reduced Energy Use Biopolymers Recycle Solutions VOC Reduction 2016 2017 2018 2019 2020PF(1) 2021 2022PF(2) $790M $550M $405M $455M $340M $915M $1,175M 11% Organic CAGR Organic Future Growth Revenue Assumptions From Sustainable Solutions: 8–12% Sustainable Solutions As highlighted in our Products section, Avient has a highly technical and broad portfolio of material solutions that help our customers—and our planet—be more sustainable. Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Robert E.

Energy and Greenhouse Gas (GHG) Emissions (continued from previous page) Greenhouse Gas Emissions (MT Scope 1 &2) Intensity (MT Scope 1 & 2 GHG/MT sales) GHG Emissions � ������ .44 .28 .30 .50 .40 .30 .20 .10 .32 2019 2020 2021 2022 2023 .28 118 Resulting in 13,000 MWh Annual Savings Energy Saving Projects in E m is s (M ) E m is s In te ty (M G /M s al s) HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 54 https://sciencebasedtargets.org/ https://www.cdp.net/en Reducing Emissions Across Our Value Chain Scope 3 emissions include upstream emissions from products and services we procure from suppliers, as well as downstream emissions from the transportation of our products and the emissions generated from the use and disposal of our sold products. Portfolio Transformation Provides Foundation for Sustainable Long-Term Growth 2006 2014 2023 10.9% 5.4% 16.0% A d ju st d E B IT D A M ar g in % Total Company Revenue 60%+ Key Growth Drivers Sustainable Overlap Composites, Healthcare, Asia/LATAM Other HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 66Sustainability Report | 2023 66 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (1)2020 is Pro Forma to include full year of the Clariant Color business (2)2022 is Pro Forma for the acquisition of APM and the divestiture of Distribution Revenue from Sustainable Solutions*Sustainable Solutions As highlighted in our Products section, Avient has a highly technical and broad portfolio of materials solutions that help our customers—and our planet—be more sustainable. Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Robert E.

Energy and Greenhouse Gas (GHG) Emissions (continued from previous page) Greenhouse Gas Emissions (MT Scope 1 &2) Intensity (MT Scope 1 & 2 GHG/MT sales) GHG Emissions � ������ .44 .28 .30 .50 .40 .30 .20 .10 .32 2019 2020 2021 2022 2023 .28 118 Resulting in 13,000 MWh Annual Savings Energy Saving Projects in E m is s (M ) E m is s In te ty (M G /M s al s) HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 54 https://sciencebasedtargets.org/ https://www.cdp.net/en Reducing Emissions Across Our Value Chain Scope 3 emissions include upstream emissions from products and services we procure from suppliers, as well as downstream emissions from the transportation of our products and the emissions generated from the use and disposal of our sold products. Portfolio Transformation Provides Foundation for Sustainable Long-Term Growth 2006 2014 2023 10.9% 5.4% 16.0% A d ju st d E B IT D A M ar g in % Total Company Revenue 60%+ Key Growth Drivers Sustainable Overlap Composites, Healthcare, Asia/LATAM Other HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 66Sustainability Report | 2023 66 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (1)2020 is Pro Forma to include full year of the Clariant Color business (2)2022 is Pro Forma for the acquisition of APM and the divestiture of Distribution Revenue from Sustainable Solutions*Sustainable Solutions As highlighted in our Products section, Avient has a highly technical and broad portfolio of materials solutions that help our customers—and our planet—be more sustainable. Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Robert E.

PolyOne Corporation Page 4 PolyOne Commodity to Specialty Transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2014 2015 and beyond • Steve Newlin appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • Substantial EPS growth from $0.13 to all-time high of $1.80 • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Specialty mix expands to 65% of Operating Income – strongest mix of earnings in history • Accelerating growth • Deliver consistent double digit annual EPS growth • Maintain >35% vitality index • Pursue strategic acquisitions that expand specialty offerings and geographic breadth • Invest and grow current and next generation talent PolyOne Corporation Page 5 Building & 10% Electrical & 11% 9% Distribution 28% PP&S 52% 69% 13% 7% Asia 2014 Revenues: $3.8 Billion End Markets 2014 Revenues: $3.8 Billion PolyOne At A Glance $13 $31 $46 $46 $92 $96 $122 $195 $242 2006 2007 2008 2009 2010 2011 2012 2013 2014 Specialty Operating Income ($M) PolyOne Corporation Page 6 Old PolyOne *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65% 69% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 Q1 2015 2020 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 80%+ Specialty OI $5M $46M $87M $195M $242M $60M Mix Shift Highlights Specialty Transformation Transformation 2020 Platinum Vision Platinum Vision PolyOne Corporation Page 7 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence PolyOne Corporation Page 8 -100% 0% 200% 300% 400% 500% 600% Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 '06 '07 '08 '09 '10 '11 '12 '13 '14 ‘06-‘14 Adjusted EPS CAGR = 40% Adjusted EPS Share Price vs.