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 • 20 consecutive quarters of double- digit adjusted EPS growth • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Established aggressive 2015 targets • Continue specialty transformation • Goal of $2.50 adjusted EPS by 2015, three times the EPS generated in 2011 of $0.82 • Drive double digit operating income and adjusted EPS growth PolyOne Corporation Page 5 Building & Construction 13% Industrial 12% Transportation 18% Wire & Cable 9% Packaging 16% Consumer 10% HealthCare 11% Appliance 6% Electronics & Electrical 5% 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion PolyOne At A Glance United States 67% Europe 14% Canada 7% Asia6% Latin America 6% Specialty 54% PP&S 18% Distribution 28% $13 $31 $46 $46 $92 $96 $122 $195 $0 $50 $100 $150 $200 2006 2007 2008 2009 2010 2011 2012 2013 Specialty Operating Income PolyOne Corporation Page 6 Old PolyOne *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 YTD 2015 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 65-75% Specialty OI $5M $46M $87M $195M $191M Target Mix Shift Highlights Specialty Transformation Transformation 2015 Target 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 Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 '06 '07 '08 '09 '10 '11 '12 '13 ‘06-‘13 EPS CAGR = 41% EPS Share Price vs.

PolyOne Corporation Page 3 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 • 19 consecutive quarters of double- digit adjusted EPS growth • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Established aggressive 2015 targets • Continue specialty transformation • Goal of $2.50 Adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth PolyOne Corporation Page 4 Building & Construction 13% Industrial 12% Transportation 18% Wire & Cable 9% Packaging 16% Consumer 10% HealthCare 11% Appliance 6% Electronics & Electrical 5% 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion PolyOne At A Glance United States 67% Europe 14% Canada 7% Asia6% Latin America 6% Specialty 54% PP&S 18% Distribution 28% $13 $31 $46 $46 $92 $96 $122 $195 $0 $50 $100 $150 $200 2006 2007 2008 2009 2010 2011 2012 2013 Specialty Operating Income PolyOne Corporation Page 5 Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 66% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 YTD 2015 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 65-75% Specialty OI $5M $46M $87M $195M $129M Target Mix Shift Highlights Specialty Transformation 2015 Target PolyOne Corporation Page 6 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 7 -150% -50% 50% 150% 250% 350% 450% 550% POL S&P 500 Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 '06 '07 '08 '09 '10 '11 '12 '13 ‘06-‘13 EPS CAGR = 41% EPS Share Price vs.

Use of Non-GAAP Measures Page 3 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 • 18 consecutive quarters of double- digit adjusted EPS growth • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Established aggressive 2015 targets • Continue specialty transformation • Targeting $2.50 Adjusted EPS by 2015, nearly double 2013 EPS • Drive double digit operating income and adjusted EPS growth Page 4 2013 Revenues: $3.8 Billion End Markets 2013 Revenues: $3.8 Billion Page 5 PolyOne At A Glance United States 67% Europe 14% Canada 7% Asia6% Latin America 6% Specialty 54% PP&S 18% Distribution 28% $13 $31 $46 $46 $92 $96 $122 $195 $0 $50 $100 $150 $200 2006 2007 2008 2009 2010 2011 2012 2013 Specialty Operating Income Building & Construction 13% Industrial 12% Transportation 18% Wire & Cable 9% Packaging 16% Consumer 10% HealthCare 11% Appliance 6% Electronics & Electrical 5% Old PolyOne Transformation *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 64% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 Q1 2014 2015 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 65-75% Specialty OI $5M $46M $87M $195M $60M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 6 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence Page 7 -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% 450.00% 550.00% PolyOne S&P 500 Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 '06 '07 '08 '09 '10 '11 '12 '13 ‘06-‘13 EPS CAGR = 41% EPS Share Price vs.

��� ��� ��� ��� ��� ��� ��� ��� ��� In ju ri e s p e r 1 0 0 W o rk e rs 0.58 Injury Incidence Rate* Rubber & Plastics Mfg. 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 0 .32 2019 2020 2021 2022 2023 .28 118 Resulting in 13,000 MWh Annual Savings Energy Saving Projects in 2023 G H G E m is si o n s (M T ) G H G E m is si o n s In te n si ty (M T G H G /M T s a le s) HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | Index Sustainability Report | 2023 54 https://sciencebasedtargets.org/ https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report https://www.cdp.net/en https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report Reducing Emissions Across Our Value Chain Scope 3 emissions include upstream emissions from products and ser vices 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. Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Robert E.

��� ��� ��� ��� ��� ��� ��� ��� ��� In ju ri e s p e r 1 0 0 W o rk e rs 0.58 Injury Incidence Rate* Rubber & Plastics Mfg. 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 0 .32 2019 2020 2021 2022 2023 .28 118 Resulting in 13,000 MWh Annual Savings Energy Saving Projects in 2023 G H G E m is si o n s (M T ) G H G E m is si o n s In te n si ty (M T G H G /M T s a le s) HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | Index Sustainability Report | 2023 54 https://sciencebasedtargets.org/ https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report https://www.cdp.net/en https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report Reducing Emissions Across Our Value Chain Scope 3 emissions include upstream emissions from products and ser vices 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. Preete Retired Executive Vice President, Chief Strategy Officer, Monsanto Company Robert E.

Einige Beispiele unserer Geschäftsaufzeichnungen umfassen: • Entwicklung neuer Produkte • Testergebnisse • Laborberichte • Forschungsdaten • Finanzberichte • Ausgabenberichte • Rechnungen • Zeitaufzeichnungen • Personalaufzeichnungen • Geschäftspläne • Briefe, Newsletter-Memoranden und E-Mails an Mitarbeiter • Auf The Loop gepostete Informationen Unternehmenseigene und vertrauliche Informationen umfassen: • Geschäftspläne und Richtungsstrategien • Forschungs- und technische Daten • Produktrezepte und Verfahrenstechnologien • Produktverantwortung • Handelsgeheimnisse, Technologien und „Know-how“ • Informationen über unsere Wettbewerbssituation • Unveröffentlichte Finanzinformationen und finanzielle Prognosen • Produktkosteninformationen • Informationen über vorgeschlagene Verträge und Transaktionen • Kunden-, Lieferanten-, Preisgestaltungs- und sonstige Informationen • Computersoftware und für unser Unternehmen entwickelte Computersysteme • Alle sonstigen Informationen, die für einen Konkurrenten nützlich sein könnten VERHALTENSKODEX | 13 INHALTSANGABE EINLEITUNG UNSER VERHALTENSKODEX RESPEKT FÜR ALLE EHRLICHKEIT BEI DER ARBEIT INTEGRITÄT IN UNSEREM GESCHÄFT SOZIALE VERANTWORTUNG DES UNTERNEHMENS RESSOURCEN Fragen & Antworten F: Mein Vorgesetzter ist im Urlaub und ich bin in seiner Abwesenheit gebeten worden, einen Vertrag im Namen des Unternehmens zu unterzeichnen. Personenbezogene Daten sind alle Daten, die zur Identifizierung einer Person verwendet werden können, wie etwa: • Von einer Regierung ausgegebene Erkennungsnummern, wie etwa Sozialversicherungs- oder nationale Versicherungsnummern • Vergütungsinformationen • Krankenakten • Leistungsaufzeichnungen • Privatadressen und private Telefonnummern Verwendung von Internet und E-Mail Avient stellt unseren Mitarbeitern Zugang zu vielen Formen von elektronischen Medien zur geschäftlichen Verwendung bereit. Einige Beispiele: • Einnahmen oder Schätzungen oder sonstige Finanzinformationen vor ihrer öffentlichen Freigabe • Erhebliche Änderungen des Betriebsniveaus • Diskussionen über wichtige Transaktionen, einschließlich Akquisitionen, Joint-Ventures oder Veräußerungen • Informationen über unsere finanzielle Verfassung, Prognosen und Pläne, Marketing- und Verkaufsprogramme und F & E-Informationen • Veränderungen in der oberen Geschäftsführung, die noch nicht öffentlich bekannt gegeben worden sind • Vergabe oder Aufhebung wichtiger Verträge mit Kunden oder Lieferanten • Anstehende Produkte oder neue Produkte, Dienstleistungen oder Verfahren • Das Bestehen von wichtigen Aufsichtsverfahren, Regierungsermittlungen und Gerichtsverfahren unter Beteiligung des Unternehmens und Entwicklungen mit Bezug zu solchen Verfahren VERHALTENSKODEX | 18 INHALTSANGABE EINLEITUNG UNSER VERHALTENSKODEX RESPEKT FÜR ALLE EHRLICHKEIT BEI DER ARBEIT INTEGRITÄT IN UNSEREM GESCHÄFT SOZIALE VERANTWORTUNG DES UNTERNEHMENS RESSOURCEN Politische Spended/Aktivitäten und gemeinnützige Spenden Avient fordert Sie auf, über wichtige Themen informiert zu bleiben, zu wählen und sich am politischen Prozess zu beteiligen.

Personal Values INTEG R IT Y R E S P EC T H O N E S T Y Core Values COLLABO R A T IO N E X C E LL EN CE INN OVAT I O N OUR CULTURE 1 Annual Report | 2022 Dear Avient Shareholders, 2022 was a challenging year but also one filled with significant accomplishments that we look back on with a great sense of pride. Beggs /S/ ROBERT E. ABERNATHY Director February 22, 2023 Robert E.

Richardson 55 Executive Vice President and Chief Financial Officer Michael E. Michael E. 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, 2013.

Nikrant 2:30 Designed Structures and Solutions Michael E. Van Hulle Senior Vice President, President of Global Color, Additives & Inks Michael E. Garratt Senior Vice President, President of Performance Products & Solutions John Midea Senior Vice President, Global Operations & Process Improvement Mark Crist Senior Vice President, President of PolyOne Distribution Cathy Dodd Vice President, Marketing Chris Murphy Vice President, Research & Development, Chief Innovation Officer Kurt Schuering Vice President, Global Key Account Management The Leaders Behind the Team PolyOne Corporation Page 8 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 9 2006 2014 “Where we were” “Where we are” Operating Income % Specialty: Global Color, Additives & Inks 1.7% 14.7% Global Specialty Engineered Materials 1.1% 12.1% Designed Structures & Solutions 1.4%(2012) 7.3% Performance Products & Solutions 5.5% 7.7% Distribution 2.6% 6.1% Specialty Platform % of Operating Income 6.0% 65% ROIC 5.0% 11.3% Adjusted EPS Growth N/A 37% Proof of Performance PolyOne Corporation Page 10 2% 34% 43% 62% 65% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty Old PolyOne Mix Shift Highlights Specialty Transformation New PolyOne Transformation Specialty OI $5M $46M $87M $195M $242M *Operating Income excludes corporate charges and special items PolyOne Corporation Page 11 2014 2015 Target “Where we are” (Est. in 2012) Operating Income % Specialty: Global Color, Additives & Inks 14.7% 12 – 16% Global Specialty Engineered Materials 12.1% 12 – 16% Designed Structures & Solutions 7.3% 8 – 10% Performance Products & Solutions 7.7% 9 – 12% Distribution 6.1% 6 – 7.5% Specialty Platform % of Operating Income 65% 65 – 75% ROIC 11.3% 15% Adjusted EPS Growth 37% Double Digit Expansion Proof of Performance PolyOne Corporation Page 12 • Sold non-core resin assets – EPS dilutive • Completed acquisition of Spartech • Housing starts below 1.25 million units Single family units 30% below expectations • Longstanding weakness in Europe, and decline in Euro Successfully Navigating Change Since 2012 PolyOne Corporation Page 13 -100% 0% 100% 200% 300% 400% 500% 600% POL S&P 500 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.

Personal Values INTEG R IT Y R E S P EC T H O N E S T Y Core Values COLLABO R A T IO N E X C E LL EN CE INN OVAT I O N OUR CULTURE 1 Annual Report | 2021 2 0 2 1 Dear Avient Shareholders, 2021 was our first full year as Avient Corporation. Beggs /S/ ROBERT E. ABERNATHY Director February 22, 2022 Robert E.