Avient Design actively provides recommendations of new color and material technologies that make sense for clients, helping product teams anticipate opportunities in time to act and benefit.

TECHNICAL SERVICES Avient Specialty Engineered Materials COULD YOUR PRODUCT DEVELOPMENT PROCESS BENEFIT FROM ADDITIONAL RESOURCES THAT EXPAND YOUR DESIGN, DEVELOPMENT, TESTING, AND TECHNICAL CAPABILITIES?

Learn more about advanced polymer technologies that enhance EV battery design and performance to enable benefits such as extended vehicle range, lightweighting and sustainability. Overview of applications and benefits

The capability to repeatedly process thermoplastic elastomers provides the major benefit of TPEs over thermoset rubbers. What are the benefits of TPEs compared to thermoset rubbers?

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 Masterbatch 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.” ColorWorks innovation centers are specially designed to foster imagination and enable creative exploration of innovative solutions • Focus on customers’ sustainability initiatives through recyclability and post-consumer recycled materials for packaging applications • Supports 8-12% long-term revenue growth expectations across our sustainable solutions portfolio 14 2020 Pro forma $870 $69 Sustainable Solutions 66 37% 26 Healthcare 29 20% 7 Composites 12 36% 6 Growth in Asia / LATAM 47 39% 11 Other 190 48% 22 Sub-total $1,214 40% $141 COVID Response Applications (15) (8) FX Impact 36 4 Synergies 11 Incentives, Travel, Other Employee Costs (26) 2021 Actual $1,235 42% $122 Q2 2021 ORGANIC SALES AND OPERATING INCOME ( T O TA L C O M PA N Y ) 15 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Adjusted Operating Income$ millions (1) 16 Q2 2020PF Q2 2021 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) Financial information is presented on a constant currency basis (1,2) (44% of total revenue) (56% of total revenue) Q2 END MARKET SALES PERFORMANCE +26% +38% +46% +103% +51% +9% +7% +67% Energy Telecom Building & Construction Transportation Industrial Healthcare Packaging Consumer Q2 YEAR-OVER-YEAR EBITDA BRIDGE Q2 2020 Pro forma $ 106 Demand 69 17 Adjusted EBITDA$ millions • Demand impact driven by growth in sustainable solutions and consumer products • Price increases more than offset raw material and supply chain impacts (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1) CAI: Price / Mix 40 Inflation (32) SEM: Price / Mix 23 Inflation (18) Distribution: Price / Mix 81 Inflation (77) Net Price Benefit 17 Supply Chain Disruptions (14) COVID Response Applications (8) Synergies 11 Incentives, Travel, FX, Other (22) Q2 2021 Actual $ 159     Q1 2021 Actual $ 161 CAI: Price / Mix 32 Inflation (22) SEM: Price / Mix 15 Inflation (9) Distribution: Price / Mix 50 Inflation (48) Net Price Benefit 18 Supply Chain Disruptions (12) Demand / Seasonality (6) Other (2) Q2 2021 Actual $ 15918 Adjusted EBITDA$ millions • Price increases more than offset raw material and freight inflation impacts • Demand impact driven by Q2 seasonality for the business Q1 TO Q2 SEQUENTIAL EBITDA BRIDGE     Q 3 A N D F U L L Y E A R 2 0 2 1 O U T L O O K $74 $98 2020 2021E $0.46 $0.68 2020 2021E ORGANIC GROWTH PROJECTIONS – Q3 ( T O TA L C O M PA N Y ) 20 Sales Adjusted Operating Income $925 $1,150 2020 2021E + 24% Adjusted EPS + 32% + 48% (in millions) (in millions) FULL YEAR GUIDANCE INCREASED 21 Sales Adj. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Masterbatch revenue synergies, that will drive long-term revenue growth in excess of GDP o Clariant Masterbatch cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered.

 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 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 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 and 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 Corporation and Accella Performance Materials;  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;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains; 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 in jurisdictions 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;  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;  Our ability to continue to pay regular quarterly cash dividends and the amounts and timing of any future dividends;  The amount and timing of repurchases of our common shares, if any;  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 Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; employee separation costs resulting from personnel reduction programs, plant phase-in costs, executive separation agreements; asset impairments; mark-to-market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties, remediation costs 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; unrealized gains and losses from foreign currency option contracts; one-time, non-recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results. (2) Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuations allowance adjustments. 2 Adjusted net cash provided by operating activities is calculated as follows: 2008Y 2009Y 2010Y 2011Y 2012Y 2013Y 2014Y Net cash provided by operating activities $ 72.5 $ 229.7 $ 140.8 $ 72.5 $ 106.9 $ 109.0 $ 208.4 Dividends and distributions received from joint ventures (32.9) (36.5) (24.2) (6.0) - - - Pension Cash Contributions 35.9 28.5 37.5 38.1 68.8 69.8 21.6 Adjusted net cash provided by operating activities $ 75.5 $ 221.7 $ 154.1 $ 104.6 $ 175.7 $ 178.8 $ 230.0 Net debt to adjusted EBITDA is calculated as follows: Twelve Months Ended (In millions) December 31, 2011 December 31, 2012 December 31, 2013 December 31, 2014 Short-term portion and current portion of long-term debt $ 3.0 $ 3.8 $ 12.7 $ 61.8 Long-term debt 704.0 703.1 976.2 962.0 Less: Cash and cash equivalents (191.9) (210.0) (365.2) (238.6) Net Debt $ 515.1 496.9 623.7 785.2 Income before income taxes $ 168.9 $ 83.3 $ 151.0 $ 88.4 Interest expense, net 33.7 50.8 63.5 62.2 Depreciation and amortization 53.2 65.8 108.8 123.9 Equity income from equity affiliates (5.7) - - - Special items, impact on income before income taxes (48.1) 55.1 46.3 164.9 Interest expense included in special items - (1.3) (1.9) - Accelerated depreciation included in special items - - (12.7) (23.1) Adjusted EBITDA $ 202.0 $ 253.7 $ 355.0 $ 416.3 Net Debt/Adjusted EBITDA 2.6 2.0 1.8 1.9 Investor Day - May 18 2015 r11 Investor Day - May 18 2015 POL IR Presentation - Investor Day - 5_13_15 Master Version WEBSITE Investor Day Forward-Looking Statements Use of Non-GAAP Measures Agenda Introduction�� Slide Number 6 The Leaders Behind the Team Commodity to Specialty Transformation Proof of Performance Mix Shift Highlights Specialty Transformation Proof of Performance Successfully Navigating Change Since 2012 Strategy and Execution Drive Results Well Positioned for Accelerated Growth Global Color, Additives & Inks�� At a Glance A Case Study for Transformational Success Slide Number 18 Accelerating Growth Who We Are Growing With Innovation Pipeline Potential Megatrends Aligned with Key End Markets Key Initiatives Platinum Vision Summary Global Specialty Engineered Materials�� What We Do At a Glance A Case Study for Transformational Success Slide Number 30 Accelerating Growth Who We Are Growing With Innovation Pipeline Potential Megatrends Aligned with Key End Markets Key Initiatives Platinum Vision Summary �Designed Structures and Solutions�� At a Glance Early Progress A Lot of Work Remains with Tremendous Upside Potential Innovating with Cross-Business Unit Technologies Who We Are Growing With Key Initiatives Platinum Vision Summary Performance Products and Solutions�� At a Glance What We Have Delivered Slide Number 50 Accelerating Growth Who We Are Growing With Geographic Growth Opportunities Innovation Pipeline Potential Megatrends Aligned with Key End Markets Key Initiatives Platinum Vision Summary PolyOne Distribution�� At a Glance Slide Number 61 What We Have Delivered Accelerating Growth Who We Are Growing With Megatrends Aligned with Key End Markets Geographic Growth Opportunities Going Beyond Distribution Platinum Vision Summary Financial Highlights�� Who We Are Growing With 2014 Awards and Recognitions 2014 Financial Highlights Proof of Performance & 2015 Targets Ours is Not a Cost Cutting Story Financial Strength Financial Flexibility Cash to Generate Value Slide Number 79 Slide Number 80 2020 Platinum Vision�� PolyOne Core Values Confirmation of Our Strategy Strategy and Execution Drive Results Formula for Success Track Record of Successful Acquisitions Driving Toward Premier Profitability 2020 Platinum Vision Platinum Vision: Pathway to Accelerated Growth Driving Toward a Premium Specialty Multiple Why Invest In PolyOne?

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; • Our ability to achieve the strategic and other objectives relating to the acquisition of Clariant’s Masterbatch 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.” Clariant Masterbatch performance will be included in this year’s report. 2021 Sustainalytics ESG Risk Ranking Newsweek Most Responsible Companies 2016 2017 2018 2019 2020PF VOC Reduction Reduced Energy Use Bio-derived Content Eco-conscious Renewable Energy Applications Recyclability Reduced Material Requirements Lightweighting $275M $325M $355M $410M $560M 9 (1) Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”)(2) 2020 is Pro forma to include full year of the Clariant Masterbatch business (2) Revenue from Sustainable Solutions 2016 – 2020 (1) S U S TA I NA B I L I T Y F O R A B ET T E R TO M O R ROW 10 • Revenue from sustainable solutions expected to grow 11% in 2021 as our innovation efforts and collaboration with customers continues to accelerate • Relentless focus on delivering our 2030 sustainability targets to benefit the planet and people of the world while adding value to our customers, communities, associates and shareholders • Investments centered around innovation and global sustainability megatrends o Improving Recyclability – Technologies that allow for increased use of post-consumer recycled (PCR) material o Light-weighting – Composites and CAI applications to reduce weight and material requirements, which minimize energy and carbon emissions o Eco-Conscious – Health and human safety applications as well as Avient’s alternative materials to replace lead, PVC, halogens, BPA and other less eco-friendly options o Avient CycleWorks – New innovation center dedicated to advancing recycling and the circular economy through collaboration with customers and brand owners Enable 100% of products manufactured for packaging applications to be recyclable or reusable. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Masterbatch revenue synergies, that will drive 2021 revenue growth of 14% and long-term growth in excess of GDP o Clariant Masterbatch cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered.

If (i) Buyer is in default of performance of its obligations towards Seller and fails to provide adequate assurance of Buyer’s performance before the date of scheduled delivery; or (ii) if Seller has reasonable doubts with respect to Buyer’s performance of its obligations and Buyer fails to provide to Seller adequate assurance of Buyer’s performance before the date of scheduled delivery and in any case within thirty (30) days of Seller’s demand for such assurance; or (iii) if Buyer becomes insolvent or unable to pay its debts as they mature, or goes into liquidation or any bankruptcy proceeding shall be instituted by or against Buyer or if a trustee or receiver or administrator is appointed for all or a substantial part of the assets of Buyer or if Buyer makes any assignment for the benefit of its creditors; or (iv) in case of non-compliance of Buyer with any law, statute ordinance, regulation, code or standard (“Laws and Standards”), then Seller may by notice in writing to Buyer, without prejudice to any of its other rights: (a) demand return and take repossession of any delivered Products which have not been paid for and all costs relating to the recovery of the Products shall be for the account of Buyer; and/or (b) suspend its performance or terminate its order confirmation for pending delivery of Products unless Buyer makes such payment for Products on a cash in advance basis or provides adequate assurance of such payment for Products to Seller. Buyer intends that its indemnification obligations for claims related to or brought by anyone directly or indirectly employed by Buyer or its subcontractors will not be limited by any provision of any worker’s compensation act, disability benefit act or other employee benefit act, and Buyer hereby waives immunity under such acts to the extent it would bar recovery under or prevent enforcement of Buyer’s indemnification obligations.

i) If Buyer is in default of performance of its obligations towards Seller and fails to provide adequate assurance of Buyer’s performance before the date of scheduled delivery; or (ii) if Seller has reasonable doubts with respect to Buyer’s performance of its obligations and Buyer fails to provide to Seller adequate assurance of Buyer’s performance before the date of scheduled delivery and in any case within thirty (30) days of Seller’s demand for such assurance; or (iii) if Buyer becomes insolvent or unable to pay its debts as they mature, or goes into liquidation or any bankruptcy proceeding shall be instituted by or against Buyer or if a trustee or receiver or administrator is appointed for all or a substantial part of the assets of Buyer or if Buyer makes any assignment for the benefit of its creditors; or (iv) in podstatnú časť alebo ak kupujúci zrealizuje akékoľvek postúpenie v prospech svojich veriteľov, alebo (iv) v prípade nedodržania akéhokoľvek zákona, nariadenia, predpisu, zákonníka alebo normy (ďalej len „zákony a normy“) zo strany kupujúceho, potom bez toho, aby tým boli dotknuté ostatné jeho práva, je predávajúci oprávnený v písomnej podobe od kupujúceho: (a) požadovať vrátenie a znovunadobudnutie akýchkoľvek dodaných výrobkov, ktoré neboli uhradené, pričom všetky náklady súvisiace so znovunadobudnutím výrobkov bude znášať kupujúci, a/alebo (b) prerušiť svoje plnenie alebo zrušiť svoje potvrdenie objednávky v súvislosti s nevykonanou dodávkou výrobkov, kým kupujúci za výrobky najprv nezaplatí alebo neposkytne predávajúcemu primerané ubezpečenie o takejto platbe za výrobky. Buyer intends that its indemnification obligations for claims related to or brought by anyone directly or indirectly employed by Buyer or its subcontractors will not be limited by any provision of any worker’s compensation act, disability benefit act or other employee benefit act, and Buyer hereby waives immunity under such acts to the extent it would bar recovery under or prevent enforcement of Buyer’s indemnification obligations. 16.

Suspension og ophør Suspension and Termination Hvis (i) Køber misligholder sine forpligtelser over for Sælger og undlader at stille tilstrækkelig sikkerhed for Købers opfyldelse inden datoen for planlagt levering; eller (ii) hvis Sælger har rimelig tvivl med hensyn til Købers opfyldelse af sine forpligtelser, og Køber undlader at give Sælger tilstrækkelig sikkerhed for Købers opfyldelse inden datoen for planlagt levering og under alle omstændigheder inden for tredive (30) dage efter Sælgers krav om sådan sikkerhed; eller (iii) hvis Køber bliver insolvent eller ude af stand til at betale sin gæld, efterhånden som den forfalder, eller træder i likvidation, eller hvis en konkursbehandling indledes af eller mod Køber, eller hvis en kurator, rekonstruktør eller administrator udpeges for alle eller en væsentlig del af Købers aktiver, eller hvis Køber foretager en overdragelse til fordel for sine kreditorer; eller (iv) i tilfælde af Købers manglende overholdelse af enhver lov, vedtægt, regulering, forskrift eller standard ("Love og standarder"), så kan Sælger ved skriftlig meddelelse til Køber, uden at det berører nogen af Sælgers andre If (i) Buyer is in default of performance of its obli- gations towards Seller and fails to provide adequate assurance of Buyer’s performance before the date of scheduled delivery; or (ii) if Seller has reasonable doubts with respect to Buyer’s performance of its obligations and Buyer fails to provide to Seller ade- quate assurance of Buyer’s performance before the date of scheduled delivery and in any case within thirty (30) days of Seller’s demand for such assur- ance; or (iii) if Buyer becomes insolvent or unable to pay its debts as they mature, or goes into liquida- tion or any bankruptcy proceeding shall be instituted by or against Buyer or if a trustee or receiver or ad- ministrator is appointed for all or a substantial part of the assets of Buyer or if Buyer makes any assign- ment for the benefit of its creditors; or (iv) in case of non-compliance of Buyer with any law, statute ordi- nance, regulation, code or standard (“Laws and Standards”), then Seller may by notice in writing to Buyer, without prejudice to any of its other rights: rettigheder: (a) kræve tilbagelevering og overtage alle leverede Produkter, der ikke er betalt for, og alle omkostninger i forbindelse med tilbagetagelsen af Produkterne skal være for Købers regning; og/eller (b) suspendere sin ydelse eller ophæve sin ordrebekræftelse for kommende levering af Produkter, medmindre Køber foretager en sådan betaling for Produkterne på forudbetalingsbasis eller stiller tilstrækkelig sikkerhed for en sådan betaling for Produkterne til Sælger. Buyer intends that its indemnification obligations for claims related to or brought by any- one directly or indirectly employed by Buyer or its subcontractors will not be limited by any provision of any worker’s compensation act, disability benefit act or other employee benefit act, and Buyer hereby waives immunity under such acts to the extent it hermed afkald på immunitet i henhold til sådanne love, i det omfang det ville forhindre inddrivelse eller forhindre håndhævelse af Købers skadesløsholdelsesforpligtelser.