HOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | IndexHOME | Contents | Message from the CEO | Who We Are | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2021 9 https://www.avient.com/careers https://www.avient.com/company/sustainability/people/community-service https://www.avient.com/investors http://endplasticwaste.org Historic Transformation, Inspired Future Avient Corporation was originally established as PolyOne Corporation in 2000 through the consolidation of two companies in the materials industry. Avient Academy originated in 2003 to provide continual learning and professional development opportunities to associates around the globe. The events included humanitarian aid collection, food and PC drives, holiday activities for children, and support for local shelters and community centers.

PolyOne Academy originated in 2003 to provide continual learning and professional development opportunities to associates around the globe. — Richard Fearon, Lead Director, PolyOne Corporation, Board of Directors 2020 2 0 % B Y 2 0 2 0 W O M E N O N B O A R D S Sustainability Report | 2018 81 Appendix Environmental Data GRI Content Index 82 Sustainability Report | 2018 Environmental Data* Category 2016 2017 2018 Change from 2016 Energy Total Energy (MWh) 756,838 817,877 863,614 14.1% Energy Intensity (MWh/MT Production) 1.26 1.10 1.11 -12.2% Percent Energy—Purchased Electricity (%) 41.31 Percent Energy—Natural Gas (%) 14.55 Percent Energy—Purchased Steam (%) 43.85 Percent Energy—Diesel Fuel (%) 0.28 Emissions Greenhouse Gas Emissions (MT Scope 1 & 2 CO 2 e) 254,995 275,811 288,436 13.1% Greenhouse Gas Emissions (MT Scope 1 CO 2 e) 21,211 21,546 23,439 10.5% Greenhouse Gas Emissions (MT Scope 2 CO 2 e) 233,784 254,265 264,997 13.4% Greenhouse Gas Emissions Intensity (MT Scope 1 & 2 CO 2 / MT Produced) 0.43 0.37 0.37 -13.0% Reportable Releases (above permitted limits) 0 0 0 0.0% Waste Total Waste (MT) 18,449 19,037 18,465 0.1% Total Waste Intensity (Kg Waste/MT Production) 9.71 9.49 8.35 -14.1% Percent of Total Waste Recycled/ Beneficially Reused (%) 66.37 61.26 63.75 -3.9% Percent of Total Waste Landfilled (%) 31.52 37.17 34.53 9.5% Water Total Water Withdrawal (M m3) 1,316 1,609 1,505 14.4% Total Water Withdrawal Intensity (m3/MT Production) 2.18 2.15 2.01 -7.8% * Includes updated data as originally estimated in the 2018 Annual Report Sustainability Report | 2018 83 GRI Content Index GRI Standard Disclosure Title PolyOne Disclosures 1.

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; • 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; • our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning (ERP) system, S/4HANA; • 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, and any recessionary conditions; and • other factors described in this Annual Report on Form 10-K under Item 1A, “Risk Factors.” In addition, certain lease arrangements may be terminated prior to their original expiration date at our discretion. The following is a summary of sales and long-lived assets based on the geographic areas where the sales originated and where the assets are located: (In millions) 2023 2022 2021 Sales: United States and Canada $ 1,271.2 $ 1,372.9 $ 1,262.3 Latin America 167.5 180.1 158.5 Europe 1,151.9 1,213.1 1,195.7 Asia 552.2 630.8 699.0 Total Sales $ 3,142.8 $ 3,396.9 $ 3,315.5 2023 2022 Assets: Color, Additives and Inks $ 2,657.2 $ 2,703.1 Specialty Engineered Materials 2,532.6 2,526.5 Corporate 778.7 855.4 Total Assets $ 5,968.5 $ 6,085.0 2023 2022 Property, net: United States and Canada $ 506.4 $ 513.4 Latin America 29.4 26.5 Europe 284.2 272.2 Asia 208.9 237.1 Total Long-lived Assets $ 1,028.9 $ 1,049.2 Note 16 — DERIVATIVES AND HEDGING We are exposed to market risks, such as changes in foreign currency exchange rates and interest rates.

Formulated specifically for overmolding onto a wide variety of substrates, including PC/ABS, PA, PS, POM, PMMA, PETG, PK or COPE resins, for improved haptics and function

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • changes in polymer consumption growth rates where we conduct business; • changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online in the industries in which we participate; • 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, including any developments that would require any increase in our costs and/or reserves for such contingencies; • an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; • an inability to raise or sustain prices for products or services; • an inability to maintain appropriate relations with unions and employees; • the speed and extent of an economic recovery, including the recovery of the housing markets; • the financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; • disruptions, uncertainty or volatility in the credit markets that may limit our access to capital; • other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation; • the amount and timing of repurchases, if any, of PolyOne common shares; • our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; POLYONE CORPORATION 1 • our ability to realize anticipated savings and operational benefits from the realignment of assets, including the planned closure of certain manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen disruptions of service or quality caused by such closings and/or production shifts; separation and severance amounts that differ from original estimates, amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; • our ability to identify and evaluate acquisition targets and consummate acquisitions; • the ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies, and retain relationships with customers of acquired companies, including, without limitation, ColorMatrix, Glasforms and Spartech; • other factors described in this Annual Report on Form 10-K under Item 1A, “Risk Factors.” Following is a summary of sales and long-lived assets based on the geographic areas where the sales originated and where the assets are located: (In millions) 2013 2012 2011 Net sales: United States $ 2,538.2 $ 1,724.1 $ 1,628.3 Europe 519.7 488.1 491.3 Canada 267.8 248.1 248.7 Asia 239.0 221.2 196.3 Mexico 158.1 141.8 102.6 South America 48.4 37.5 42.2 Long-lived assets: United States $ 444.4 $ 240.9 $ 235.2 Europe 103.0 82.2 86.9 Canada 13.2 5.7 5.9 Asia 51.8 45.1 39.3 Mexico 20.5 3.5 2.7 South America 13.3 8.4 4.6 Note 17 — COMMON SHARE DATA Weighted-average shares used in computing net income per share are as follows: (In millions) 2013 2012 2011 Weighted-average shares — basic: 95.5 89.1 92.2 Plus dilutive impact of stock options and share-based awards 1.0 0.7 2.1 Weighted-average shares — diluted: 96.5 89.8 94.3 Basic net income per common share is computed as net income available to common shareholders divided by the weighted average basic shares outstanding. Newlin, originally effective as of February 13, 2006 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 2008, SEC File No. 1-16091) 10.16 Assumption of Liabilities and Indemnification Agreement, dated March 1, 1993, amended and restated by Amended and Restated Assumption of Liabilities and Indemnification Agreement, dated April 27, 1993 (incorporated by reference to Exhibit 10.14 to The Geon Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 1996, SEC File No. 1-11804) 10.17 Unconditional and Continuing Guaranty, between the Company and Olin Corporation and Sunbelt Chlor Alkali Partnership (incorporated by reference to Exhibit 10(c) to The Geon Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 1996, SEC File No. 1-11804) 10.18 Asset Contribution Agreement — PVC Partnership (Geon) (incorporated by reference to Exhibit 10.3 to The Geon Company’s Current Report on Form 8-K filed on May 13, 1999, SEC File No. 1-11804) 10.19+ Form of Award Agreement for Stock-Settled Stock Appreciation Rights (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2007, SEC File No. 1-16091) 10.20+ PolyOne Corporation 2008 Equity and Performance Incentive Plan (incorporated herein by reference to Appendix A to the Registrant’s proxy statement on Schedule 14A (SEC File No. 1-16091), filed on March 25, 2008) 10.21+ Form of Award Agreement for Stock-Settled Stock Appreciation Rights (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2008, SEC File No. 1-16091) 10.22+ First Amendment to The Geon Company Section 401(a)(17) Benefit Restoration Plan (December 31, 2007 Restatement) (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2009, SEC File No. 1-16091) 10.23+ Form of Grant of Stock-Settled Stock Appreciation Rights under the 2009 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2009, SEC File No. 1-16091) 10.24+ Executive Severance Plan, as amended and restated effective February 17, 2009 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2009, SEC File No. 1-16091) 10.25 First Amendment to the PolyOne Corporation 2010 Equity and Performance Incentive Plan (incorporated by reference to Appendix A to the Company’s definitive proxy statement on Schedule 14A, SEC File No. 1-16091, filed on March 23, 2012) 10.26+ Form of 2012 Award Agreement under the PolyOne Corporation 2010 Equity and Performance Incentive Plan, as amended (incorporated by reference to Exhibit 10.38 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012, SEC File No. 1-16091) POLYONE CORPORATION Exhibit No.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic materials where we conduct business; • changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online in the industries in which we participate; • 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, including any developments that would require any increase in our costs and/or reserves for such contingencies; • an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; • an inability to raise or sustain prices for products or services; • an inability to maintain appropriate relations with unions and employees; • the speed and extent of an economic recovery, including the recovery of the housing markets; • the financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; • disruptions, uncertainty or volatility in the credit markets that may limit our access to capital; • other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation; • the amount and timing of repurchases, if any, of PolyOne common shares; • our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • our ability to realize anticipated savings and operational benefits from the realignment of assets, including the closure of manufacturing facilities; the timing of closings and shifts of POLYONE CORPORATION 1 production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts; separation and severance amounts that differ from original estimates, amounts for non- cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; • our ability to identify and evaluate acquisition targets and consummate acquisitions; • the ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies, and retain relationships with customers of acquired companies, including, without limitation, Spartech and Accella Performance Materials; and • other factors described in this Annual Report on Form 10-K under Item 1A, “Risk Factors.” Following is a summary of sales and long-lived assets based on the geographic areas where the sales originated and where the assets are located: (In millions) 2014 2013 2012 Sales: United States $ 2,590.4 $ 2,538.2 $ 1,724.1 Europe 511.8 519.7 488.1 Canada 277.4 267.8 248.1 Asia 246.2 239.0 221.2 Mexico 178.4 158.1 141.8 South America 31.3 48.4 37.5 Total Sales $ 3,835.5 $ 3,771.2 $ 2,860.8 Long-lived assets: United States $ 421.1 $ 444.4 $ 240.9 Europe 95.7 103.0 82.2 Canada 12.8 13.2 5.7 Asia 39.5 51.8 45.1 Mexico 19.7 20.5 3.5 South America 7.9 13.3 8.4 Total Long-lived assets $ 596.7 $ 646.2 $ 385.8 Note 17 — COMMON SHARE DATA Weighted-average shares used in computing net income per share are as follows: (In millions) 2014 2013 2012 Weighted-average shares — basic: 92.3 95.5 89.1 Plus dilutive impact of share-based compensation 1.2 1.0 0.7 Weighted-average shares — diluted: 93.5 96.5 89.8 Outstanding share-based awards with exercise prices greater than the average price of the common shares are anti-dilutive and are not included in the computation of diluted net income per share. Newlin, originally effective as of February 13, 2006 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014, SEC File No. 1-16091) 10.13+ Assumption of Liabilities and Indemnification Agreement, dated March 1, 1993, amended and restated by Amended and Restated Assumption of Liabilities and Indemnification Agreement, dated April 27, 1993 (incorporated by reference to Exhibit 10.14 to The Geon Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 1996, SEC File No. 1-11804) 10.14+ Unconditional and Continuing Guaranty, between the Company and Olin Corporation and Sunbelt Chlor Alkali Partnership (incorporated by reference to Exhibit 10(c) to The Geon Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 1996, SEC File No. 1-11804) 10.15+ Asset Contribution Agreement — PVC Partnership (Geon) (incorporated by reference to Exhibit 10.3 to The Geon Company’s Current Report on Form 8-K filed on May 13, 1999, SEC File No. 1-11804) 10.16+ Form of 2007 Award Agreement for Stock-Settled Stock Appreciation Rights (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2007, SEC File No. 1-16091) 10.17+ PolyOne Corporation 2008 Equity and Performance Incentive Plan (incorporated herein by reference to Appendix A to the Registrant’s proxy statement on Schedule 14A (SEC File No. 1-16091), filed on March 25, 2008) 10.18+ Form of 2008 Award Agreement for Stock-Settled Stock Appreciation Rights (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2008, SEC File No. 1-16091) 10.19+ First Amendment to The Geon Company Section 401(a)(17) Benefit Restoration Plan (December 31, 2007 Restatement) (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2009, SEC File No. 1-16091) 10.20+ Form of 2009 Grant of Stock-Settled Stock Appreciation Rights under the 2009 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2009, SEC File No. 1-16091) 10.21+ Executive Severance Plan, as amended and restated effective May 15, 2014 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2014, SEC File No. 1-16091) 10.22+ First Amendment to the PolyOne Corporation 2010 Equity and Performance Incentive Plan (incorporated by reference to Appendix A to the Company’s definitive proxy statement on Schedule 14A, SEC File No. 1-16091, filed on March 23, 2012) 10.23+ Form of 2012 Award Agreement under the PolyOne Corporation 2010 Equity and Performance Incentive Plan, as amended (incorporated by reference to Exhibit 10.38 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012, SEC File No. 1-16091) 10.24+ Form of 2013 Award Agreement under the PolyOne Corporation 2010 Equity and Performance Incentive Plan, as amended (incorporated by reference to Exhibit 10.27 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2013, SEC File No. 1-16091) 10.25+ Form of Director and Officer Indemnification Agreement (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on July 5, 2006, SEC File No. 1-16091) 10.26+ Form of 2014 Award Agreement under the PolyOne Corporation 2010 Equity and Performance Incentive Plan, as amended (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2014, SEC File No. 1-16091) 21.1 Subsidiaries of the Company** POLYONE CORPORATION Exhibit No.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • effects on foreign operations due to currency fluctuations, tariffs and other political, economic and regulatory risks; • changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic materials where we conduct business; • changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online in the industries in which we participate; • 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, including any developments that would require any increase in our costs and/or reserves for such contingencies; • an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; • an inability to raise or sustain prices for products or services; • an inability to maintain appropriate relations with unions and employees; • the strength and timing of economic recoveries; • the financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability; • disruptions, uncertainty or volatility in the credit markets that may limit our access to capital; • other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation; • the amount and timing of repurchases, if any, of PolyOne common shares; POLYONE CORPORATION 1 • our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • our ability to realize anticipated savings and operational benefits from the realignment of assets, including the closure of manufacturing facilities; the timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts; separation and severance amounts that differ from original estimates, amounts for non- cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates; • our ability to identify and evaluate acquisition targets and consummate acquisitions; • the ability to successfully integrate acquired businesses into our operations, including whether such businesses will be accretive to our earnings, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses, including, without limitation, Spartech, Accella Performance Materials and Magenta; • information systems failures and cyberattacks; and • other factors described in this Annual Report on Form 10-K under Item 1A, “Risk Factors.” Following is a summary of sales and long-lived assets based on the geographic areas where the sales originated and where the assets are located: (In millions) 2015 2014 2013 Sales: United States $ 2,244.9 $ 2,590.4 $ 2,538.2 Europe 430.1 511.8 519.7 Canada 241.3 277.4 267.8 Asia 235.9 246.2 239.0 Mexico 209.7 178.4 158.1 South America 15.7 31.3 48.4 Total Sales $ 3,377.6 $ 3,835.5 $ 3,771.2 Long-lived assets: United States $ 418.1 $ 421.1 $ 444.4 Europe 94.0 95.7 103.0 Canada 6.9 12.8 13.2 Asia 40.2 39.5 51.8 Mexico 19.4 19.7 20.5 South America 4.9 7.9 13.3 Total Long-lived assets $ 583.5 $ 596.7 $ 646.2 Note 17 — COMMON SHARE DATA Weighted-average shares used in computing net income per share are as follows: (In millions) 2015 2014 2013 Weighted-average shares — basic: 87.8 92.3 95.5 Plus dilutive impact of share-based compensation 0.9 1.2 1.0 Weighted-average shares — diluted: 88.7 93.5 96.5 Outstanding share-based awards with exercise prices greater than the average price of the common shares are anti-dilutive and are not included in the computation of diluted net income per share. Newlin, originally effective as of February 13, 2006 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014, SEC File No. 1-16091) 10.17+ Assumption of Liabilities and Indemnification Agreement, dated March 1, 1993, amended and restated by Amended and Restated Assumption of Liabilities and Indemnification Agreement, dated April 27, 1993 (incorporated by reference to Exhibit 10.14 to The Geon Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 1996, SEC File No. 1-11804) 10.18+ Unconditional and Continuing Guaranty, between the Company and Olin Corporation and Sunbelt Chlor Alkali Partnership (incorporated by reference to Exhibit 10(c) to The Geon Company’s Quarterly Report on Form 10-Q for the quarter ended September 30, 1996, SEC File No. 1-11804) 10.19+ Asset Contribution Agreement — PVC Partnership (Geon) (incorporated by reference to Exhibit 10.3 to The Geon Company’s Current Report on Form 8-K filed on May 13, 1999, SEC File No. 1-11804) 10.20+ PolyOne Corporation 2008 Equity and Performance Incentive Plan (incorporated herein by reference to Appendix A to the Registrant’s proxy statement on Schedule 14A (SEC File No. 1-16091), filed on March 25, 2008) 10.21+ Form of 2009 Grant of Stock-Settled Stock Appreciation Rights under the 2009 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.4 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2009, SEC File No. 1-16091) 10.22+ Executive Severance Plan, as amended and restated effective May 15, 2014 (incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2014, SEC File No. 1-16091) 10.23+ Form of 2012 Award Agreement under the PolyOne Corporation 2010 Equity and Performance Incentive Plan, as amended (incorporated by reference to Exhibit 10.38 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2012, SEC File No. 1-16091) 10.24+ Form of 2013 Award Agreement under the PolyOne Corporation 2010 Equity and Performance Incentive Plan, as amended (incorporated by reference to Exhibit 10.27 to the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2013, SEC File No. 1-16091) 10.25+ Form of Director and Officer Indemnification Agreement (incorporated by reference to Exhibit 10.1 to the Company’s Current Report on Form 8-K filed on July 5, 2006, SEC File No. 1-16091) 10.26+ Form of 2014 Award Agreement under the PolyOne Corporation 2010 Equity and Performance Incentive Plan, as amended (incorporated by reference to Exhibit 10.2 to the Company’s Quarterly Report on Form 10-Q for the quarter ended June 30, 2014, SEC File No. 1-16091) 21.1 Subsidiaries of the Company** 23.1 Consent of Independent Registered Public Accounting Firm — Ernst & Young LLP** POLYONE CORPORATION Exhibit No.

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.”

A seconda delle leggi del vostro Paese, queste caratteristiche potrebbero includere: • Razza • Religione • Sesso • Origine etnica o discendenza • Età • Orientamento sessuale • Condizione di militare o veterano • Stato civile • Invalidità • Gravidanza e maternità • Nazionalità Abuso di sostanze È compito di tutti noi adoperarci per assicurare un ambiente di lavoro privo degli effetti di alcolici, droghe e altre sostanze controllate.

HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Per formance | Metrics | Index Sustainability Report | 2022 9 https://www.avient.com/careers https://www.avient.com/company/sustainability/people/community-service https://www.avient.com/investors http://endplasticwaste.org/ Historic Transformation, Inspired Future Avient Corporation was originally established as PolyOne Corporation in 2000 through the consolidation of two companies in the materials industr y. Avient Academy originated in 2003 to provide continual learning and professional development opportunities to associates around the globe. Avient has elected to utilize the reporting template provided by the Responsible Minerals Initiative (RMI—formerly Conflict-Free Sourcing Initiative), which facilitates the transfer of information through the supply chain regarding mineral countr y of origin and smelters and refiners being utilized.