This can be challenging for many companies as they strive to comply with regulations while managing product development, production efficiencies, and costs.

With heavy investment on a global scale, solar power farms are being developed worldwide, increasing the demand for photovoltaic cable.

With heavy investment on a global scale, solar power farms are being developed worldwide, increasing the demand for photovoltaic cable.

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; • 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; and • other factors described in our Annual Report on Form 10-K under Item 1A, “Risk Factors.”

Avient Corporation 1 JEFFERIES VIRTUAL INDUSTRIALS CONFERENCE A U G U S T 2 0 2 0 Avient Corporation 2 FORWARD LOOKING STATEMENTS Avient Corporation 3 USE OF NON-GAAP MEASURES Avient Corporation 4 UPDATE ON THE COVID-19 PANDEMIC Avient Corporation 5 2019 Transportation Consumer Discretionary Healthcare Packaging All Other Industries Cost Containment FX 2020 $64.3 18% 16% 2% $46.9 SECOND QUARTER 2020 IN REVIEW Consumer Discretionary Avient Corporation 6 CLARIANT MASTERBATCH STRATEGIC RATIONALE Avient Corporation 7 FIT W I T H FOUR PILLAR S T R A T E G Y Specialization Globalization Operational Commercial People Avient Corporation 8 2006 2019E PF* 2006 2019E PF* 38% * 2019E Pro Forma for PP&S Divestiture and Clariant Masterbatch business Percentage of Total Revenue E N D M A R K E T T R A N S F O R M A T I O N Building & Construction High Growth End Markets 50% 22% Avient Corporation 9 Electronic 38% 18%Transportation Building & Constrution Electrial & Electronic 2006 Pro Forma(1) Net Sales by End Market E N D M A R K E T T R A N S F O R M A T I O N Avient Corporation 10 U N I F I E D F O C U S O N S U S T A I N A B I L I T Y 2006 - 2013 2013 – 2019 PEOPLE PROD UC TS PLANET PER FOR M A NC E Avient Corporation 11 O V E R 8 5 % O F A D J U S T E D E B I T D A F R O M S P E C I A L T Y 46% 66% 0% 40% 60% 80% 100% 2005 2010 2015 Pro Forma % o f A d ju s te d E B IT D A ( 1) JVs Performance Products & Solutions Distribution Specialty 87% (2) Avient Corporation 12 T H E N E W A V I E N T : A S P E C I A L T Y G R O W T H C O M P A N Y Transaction expected to add $0.85 to pro forma adjusted EPS Avient Corporation 13 SUSTAINABILITY AT AVIENT P E O P L E , P R O D U C T S , P L A N E T , P E R F O R M A N C E Avient Corporation 13 Avient Corporation 14 V I S I O N To be the world’s premier provider of specialized polymer materials, services and C O R E V A L U E S P E R S O N A L V A L U E S Honesty IntegrityRespect Operational Commercial Specialization Globalization Collaboration ExcellenceInnovation To be the world’s premier provider of specialized polymer materials, services and sustainable Avient Corporation 15 1.3 1.1 1.1 0.85 0.65 0.57 0.54 0.97 0.84 0.74 0.74 0.69 0.51 0.56 0.14 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 YTD S A F E T Y F I R S T Injuries per 100 Workers Spartech Acquisition Avient Corporation 16 G R E A T P L A C E T O W O R K Avient Corporation 17 C O M M O D I T Y T O S P E C I A L T Y T R A N S F O R M A T I O N 2006 - 2013 2013 – 20192000-2005 2006 - 2013 2020 and Beyond Avient Corporation 18 A V I E N T 2 0 1 9 R E V E N U E | $ 2 . 9 B I L L I O N Segment End Market Geography Wire & Cable Building & Electrical & Electronics Color Additives & Inks 34% Distribution 41% Specialty Engineered Materials 25% United States 54% Latin America Avient Corporation 19 Operating Income % of Sales Color, Additives & Inks 1.7% 14.7% Specialty Engineered Materials 1.1% 11.6% Distribution 2.6% 6.3% 2009 2010 2011 2012 2013 2014 2015 2016*2017* 2018 $2.43 P R O O F O F P E R F O R M A N C E C O N S E C U T I V E Y E A R S 10 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 $1.96 $2.06 $2.21 A D J U S T E D E P S E X P A N S I O N 2018 2019 $1.69 $1.51 Avient Corporation 20 531 710 1,032 130 164 207 504 663 871 2014 2018 Pro Forma R&D / Technical Marketing Sales + 34% + 26% + 32% E X P A N S I O N O F COMMERCIAL RESOURCES D R I V I N G G R O W T H Revenue in Billions Total + 10% Organic + 7%+ 45% + 26% + 31% $4.0 $3.2 (2) (1) (1) $2.9 $2.9 $3.5 2015 2016 2017 2018 Pro Forma Total + 9% Organic + 5% Pro Forma(2) Avient Corporation 21 P R I O R A C Q U I S I T I O N S H I S T O R Y Commercial Resources(1) Operating Income ($ in millions) Operating Margins 256 350 $36 $100 Established Acquisitions (> 7 years) + 37% + 176% + 1000 bps Avient Corporation 22 A L I G N I N G W I T H T R E N D S F O R G R O W T H T R A N S P O R T A T I O N P A C K A G I N G H E A L T H C A R E C O N S U M E R Facilitate alternative energy Light- weighting Reduce packaging materials Improve recyclability Reduce spread of infection Avient Corporation 23 I N N O V A T I O N Customization 55% M&A 30% Innovation Pipeline Innovation comes from Research & Development Spend Vitality Index 37% $20 $51 Avient Corporation 24 R E V E N U E F R O M S U S T A I N A B L E S O L U T I O N S $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth Avient Corporation 25 SEGMENT HIGHLIGHTS I N N O V A T I N G W I T H A V I E N T Avient Corporation 25 Avient Corporation 26 C O L O R , A D D I T I V E S & I N K S E N D M A R K E T S & S O L U T I O N S Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants 31% Building & Construction Appliances Electrical & Electronics Avient Corporation 26 Avient Corporation 27 Operating Income & MarginRevenue by Region C O L O R , A D D I T I V E S & I N K S 2 0 1 9 R E V E N U E | O V E R $ 1 B I L L I O N 34% United States 44% Mexico South America $4 $25 $104 $147 0.9% 5.5% 12.2% 14.7% Avient Corporation 27 Avient Corporation 28 S P E C I A L T Y E N G I N E E R E D M A T E R I A L S E N D M A R K E T S & S O L U T I O N S Engineered Formulations Advanced Composites Thermoplastic Elastomers Wire & Cable* 28% Electrical & Electronics Building & Construction Avient Corporation 28 Avient Corporation 29 S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Revenue by Region Operating Income & Margin 2 0 1 9 R E V E N U E | $ 7 5 0 M I L L I O N 27% United States 54% 17% $21 $57 $87 0.1% 5.1% 9.3% 11.6% Avient Corporation 29 Avient Corporation 30 D I S T R I B U T I O N E N D M A R K E T S & S U P P L I E R S 28% 17% Electrical & Electronics Building & Operating Income & Margin2019 Revenue | $1.2 Billion $25 $63 $75 $20 2.9% 4.0% 5.9% 6.3% Avient Corporation 30 http://www.avient.com/Pages/VariationRoot.aspx Avient Corporation 31 O V E R V I E W O F R A W M A T E R I A L P U R C H A S E S Avient Corporation 31 Avient Corporation 32 Avient Corporation 33 Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016** 2017** 2018 2018*** Q1 2019*** 2019 Q1 2020 Net income from continuing operations attributable to PolyOne common shareholders Joint venture equity earnings, after tax Special items, before tax Special items, tax adjustments Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 $ 87.7 $ 22.4 $ 75.5 $ 33.1 (19.0) (14.7) (3.7) — — — — — — — — — — — (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 58.7 12.2 61.7 9.6 (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) (25.1) (1.2) (5.9) (1.0) $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 $ 121.3 $ 33.4 $ 131.3 $ 41.7 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 78.2 77.7 86.7 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 $ 1.51 $ 0.43 $ 1.69 $ 0.48 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation. ** Pro forma for sale of Designed Structures and Solutions segment (DSS). *** Pro forma for sale of Performance Products and Solutions segment (PP&S). Reconciliation to Adjusted EPS Excluding Special Items and Impacts of February 2020 Equity Offering and May 2020 Debt Offering Three Months Ended June 30, 2020 Net income from continuing operations attributable to Avient common shareholders $ 23.0 Special items, after tax(1) 2.6 After tax interest expense, net arising from equity offering and debt offering proceeds 4.1 Adjusted net income excluding special items and impact of interest expense, net arising from equity offering and debt offering proceeds $ 29.7 Diluted weighted-average shares used to compute earnings per common share 91.8 Weighted-average impact of 15.3 million shares issued in February 2020 equity offering (15.3) Diluted weighted-average shares excluding impact of shares issued in February 2020 equity offering 76.5 Adjusted EPS excluding special items and impact of equity offering and debt offering $ 0.39 (1) Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures, including adjustments related to contingent consideration; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to-market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, joint ventures and equity investments; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non- recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results.

Avient has developed a comprehensive program for implementing this Policy through appropriate guidance, training, investigation and oversight.

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 system, S/4HANA;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 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 but are not limited to:• Factors that could cause actual results to differ materially from those implied by these forward‐looking statements include, but are not limited to:  Our ability to achieve the strategic and other objectives relating to the Spartech acquisition, including any expected synergies; our ability to successfully  integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  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 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;liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The amount and timing of repurchases, if any, of PolyOne common shares and our ability to pay regular quarterly cash dividends and the amounts and  timing of any future dividends;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;g p y p g ;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  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 or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital  reductions, cost reductions, employee productivity goals, and an inability to raise or sustain prices for products or services;, , p y p y g , y p p ;  An inability to maintain appropriate relations with unions and employees; and  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 above list of factors is not exhaustive. • We undertake no obligation to publicly update forward‐looking statements, whether as a result of new information, future events or otherwise.  

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; • 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 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 our Annual Report on Form 10-K for the year ended December 31, 2023 under Item 1A, “Risk Factors.”

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