Platform operating income mix percentage 2005Y 2008Y 2011Y Global Specialty Engineered Materials $ 0.4 $ 17.6 $ 45.9 Global Color, Additives and Inks 4.3 28.1 43.4 Specialty Platform $ 4.7 $ 45.7 $ 89.3 Performance Products and Solutions 75.7 31.3 62.4 Distribution 19.5 28.1 56.0 SunBelt Joint Venture 91.9 28.6 5.0 Corporate (51.5) (425.1) 20.3 Operating income (loss) GAAP $ 140.3 $ (291.4) $ 233.0 Less: Corporate operating expense (income) 51.5 425.1 (20.3) Operating income excluding Corporate $ 191.8 $ 133.7 $ 212.7 Specialty platform operating mix percentage 2% 34% 42% Pro forma platform operating income mix percentage 2007 Pro forma 2011Y Specialty Platform $ 30.6 $ 89.3 Pro forma ColorMatrix - 27.7 Specialty Platform pro forma ColorMatrix $ 30.6 $ 117.0 Performance Products and Solutions 65.8 62.4 Distribution 22.1 56.0 SunBelt Joint Venture 34.8 5.0 Corporate (73.3) 20.3 Operating income pro forma ColorMatrix $ 80.0 $ 260.7 Less: Corporate and SunBelt operating income 73.3 (25.3) Operating income excluding Corporate operating income $ 153.3 $ 235.4 Specialty platform operating mix percentage 20% 50% Adjusted EPS 2006Y 2007Y 2008Y 2009Y 2010Y 2011Y Net Income $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 162.6 $ 172.6 SunBelt and OxyVinyls equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) Special items, after tax (21.2) 41.4 310.0 (31.0) 15.8 (30.5) Tax adjustments (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 75.4 $ 96.1 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.79 $ 1.02 Adjusted EPS Q1 2011 Q1 2012 Net Income $ 110.2 $ 20.2 SunBelt equity earnings, after tax (3.7) - Special items, after tax (79.8) 6.1 Tax adjustments (1.5) 0.1 Adjusted net income $ 25.2 $ 26.4 Diluted shares 96.4 90.7 Adjusted EPS $ 0.26 $ 0.29 Platform sales and operating income (OI) 2005 2006 2007 2008 2009 2010 2011 Global Specialty Engineered Materials Sales $ 282.5 $ 345.3 $ 384.4 $ 514.0 $ 402.9 $ 517.4 $ 575.1 Global Color, Additives and Inks Sales 503.7 531.8 560.5 554.3 459.8 527.4 544.6 Specialty Platform Sales $ 786.2 $ 877.1 $ 944.9 $ 1,068.3 $ 862.7 $ 1,044.8 $ 1,119.7 Performance Products and Solutions Sales 1,136.3 1,166.2 1,086.8 1,001.4 667.7 776.3 865.4 PolyOne Distribution Sales 679.2 732.8 744.3 796.7 625.1 911.9 996.5 Corporate and Eliminations (151.1) (153.7) (133.3) (127.7) (94.8) (111.1) (118.1) Total Sales $ 2,450.6 $ 2,622.4 $ 2,642.7 $ 2,738.7 $ 2,060.7 $ 2,621.9 $ 2,863.5 Pro forma ColorMatrix Sales 196.0 Total sales pro forma ColorMatrix $ 3,059.5 Global Specialty Engineered Materials OI $ 0.4 $ 3.9 $ 4.9 $ 17.6 $ 20.6 $ 49.7 $ 45.9 Global Color, Additives and Inks OI 4.3 8.9 25.7 28.1 25.2 37.7 43.4 Specialty Platform OI $ 4.7 $ 12.8 $ 30.6 $ 45.7 $ 45.8 $ 87.4 $ 89.3 Performance Products and Solutions OI 75.7 64.2 65.8 31.3 33.1 54.0 62.4 PolyOne Distribution OI 19.5 19.2 22.1 28.1 24.8 42.0 56.0 Sunbelt Joint Venture OI 91.9 102.9 34.8 28.6 25.5 18.9 5.0 Corporate and eliminations (21.8) (4.6) (25.5) (28.9) (40.8) (32.5) (26.4) Special items (29.7) 39.1 (47.8) (396.2) 48.7 4.8 46.7 Operating income (loss) GAAP $ 140.3 $ 233.6 $ 80.0 $ (291.4) $ 137.1 $ 174.6 $ 233.0 Sunbelt equity income (72.5) (107.0) (40.8) (32.5) (29.7) (23.1) (5.7) Special items 29.7 (39.1) 47.8 396.2 (48.7) (4.8) (46.7) Operating income adjusted $ 97.5 $ 87.5 $ 87.0 $ 72.3 $ 58.7 $ 146.7 $ 180.6 Operating income pro forma ColorMatrix 27.7 Operating income adjusted pro forma ColorMatrix $ 208.3 Global Specialty Engineered Materials - OI as a percentage of sales 0.1% 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% Global Color, Additives and Inks - OI as a percentage of sales 0.9% 1.7% 4.6% 5.1% 5.5% 7.1% 8.0% Specialty platform OI as a percentage of sales 0.6% 1.5% 3.2% 4.3% 5.3% 8.4% 8.0% Specialty platform OI as a percentage of sales - pro forma ColorMatrix 8.9% Global Color, Additives and Inks OI as a percentage of sales – pro forma ColorMatrix 9.6% PP&S operating OI as a percentage of sales 6.7% 5.5% 6.1% 3.1% 5.0% 7.0% 7.2% Distribution OI as a percentage of sales 2.9% 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% PolyOne OI adjusted, as a percentage of sales 4.0% 3.3% 3.3% 2.6% 2.8% 5.6% 6.3% PolyOne OI adjusted, pro forma for ColorMatrix, as a percent of sales 6.8% Operating income (OI) Q1 2011 Q1 2012 Global Specialty Engineered Materials OI $ 14.0 $ 11.8 Global Color, Additives and Inks OI 11.2 17.3 Specialty Platform OI $ 25.2 $ 29.1 Performance Products and Solutions OI 14.3 17.8 PolyOne Distribution OI 14.7 16.7 Corporate and eliminations (1.6) (10.2) Special items 127.2 (8.5) Operating income (loss) GAAP $ 179.8 $ 44.9 Research and Development (R&D) – Pro forma ColorMatrix 2011 PolyOne R&D $ 36.9 ColorMatrix R&D 3.6 Pro forma R&D $ 40.5 Gross Margin as a percentage of Sales 2006 2011 2011 Pro forma ColorMatrix Specialty platform sales $ 877.1 $ 1,119.7 $ 1,315.7 Specialty platform gross margin 125.2 263.4 345.9 Specialty platform gross margin percentage 14.3 % 23.5 % 26.3 % Average Debt Q4 2010 Q1 2011 Q2 2011 Q3 2011 Q4 2011 Average PolyOne Debt $ 452.9 $ 432.9 $ 432.9 $ 432.9 $ 707.0 n/a Pro forma ColorMatrix 274.1 274.1 274.1 274.1 - n/a Total Debt $ 727.0 $ 707.0 $ 707.0 $ 707.0 $ 707.0 $ 711.0 Average Equity Q4 2010 Q1 2011 Q2 2011 Q3 2011 Q4 2011 Average PolyOne $ 516.0 $ 615.2 $ 629.6 $ 608.5 $ 588.3 $ 591.5

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Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • The impact of the COVID-19 pandemic has on our business, results from operations, financial condition and liquidity; • Our ability to achieve the strategic and other objectives relating to the acquisition of Clariant’s Masterbatch business, including any expected synergies; • 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; • Changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; • 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; • Our ability to continue to pay cash dividends including at the increased rate; • Our ability to consummate and successfully integrate acquisitions; • An inability to raise or sustain prices for products or services; • An ability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisitions and integration, working capital reductions, cost reductions, and employee productivity goals; • Information systems failures and cyber attacks; 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. WHY AVIENT WINS Deep Customer Relationships & Application Know-How Superior Design Capabilities & Advanced Analytics Global Footprint Strategically Aligned to Serve Customers We iterate fast and often. 37 24 10 36 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia We produce locally, serve globally. Whether it’s an ambitious start-up bringing a new product to market, or a large, multi- national OEM looking for consistency and reliability of global supply, Avient is built for long-term partnerships.

Avient Terms and Conditions of Purchase for Goods and/or Services These Terms and Conditions of Purchase for Goods and/or Services (“Terms of Purchase”) apply to and form an integral part of all requests for proposal, quotations and Purchase Orders. Services” are the services and/or all pertaining deliverables to be provided as specified in the applicable Purchase Order. Avient Terms and Conditions of Purchase for Goods and/or Services 3.2.2 Asia.

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; • Changes in 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • 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; 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 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. AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial GuidanceCompany Overview 2022 Pro Forma Revenue By: 9,700 Employees 104 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable material solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.3B Revenue $2.40 $525M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $180M Free Cash Flow 3.0x Net Leverage Over $1B in share buybacks since 2011 Raised dividend for 12 consecutive years, a 16% CAGR since 2011 Geography Segment Industry U.S. & Canada 64% 36% Specialty Engineered Materials Color Additives and Inks 40% 37% 18% 9% 4% 4% Building & Energy Telecom 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6.5% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. Global Compact • Highlights ESG Performance, including ratings, awards, and certifications • Features increased carbon emissions disclosures, including Climate Change Scenario Analysis and Scope 3 emissions data • Outlines Sustainable Supplier Program, designed to enable supplier evaluation & collaboration • Reflects Great Place To Work® culture focused on safety, employee engagement and advancing diversity, equity and inclusion 2022 SUSTAINABILITY REPORT 19 Avient Confidential 20 • Virtual presentation to be held September 20, 2023 • Leadership will be conducting an investor-focused presentation around our sustainable solutions portfolio • Deep dive into how we enable customers to achieve their sustainability goals SUSTAINABILITY DAY 20 …are Growing at Twice the Rate as Conventional Products Sustainably-Branded Products… STAKEHOLDER INFLUENCE DRIVES DEMAND Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords Brand Owners Have committed to ambitious goals to achieve sustainability metrics 21 AP P EN D IX 24 Performance Additives 16% Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,280 and estimated run-rate CAPEX of $110M. 26 3 3 4 4 4 5 5 7 7 9 10 FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Patterson reflected on 2020 saying, “It was a historic year where we brought two global leaders together to create an even stronger company – now known as Avient. We held our priorities firm by keeping health and safety first, providing world-class service to our customers, and utilizing our unique position to aid in recovery efforts as an essential supplier throughout the world.” 2021 Outlook Commenting on the Company’s 2021 outlook, Mr. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include the impact the COVID-19 pandemic has on our business, results from operations, financial condition and liquidity; our ability to achieve the strategic and other objectives relating to the acquisition of Clariant’s Masterbatch business, including any expected synergies; 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; changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; 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; our ability to continue to pay cash dividends including at the increased rate; an inability to raise or sustain prices for products or services; an ability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisitions and integration, working capital reductions, costs reductions and employee productivity goals; information systems failures and cyberattacks; 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.

Frequently Asked Questions about TPEs Is there a service temperature for TPEs? The term Service Temperature is loosely used to define the maximum temperature at which a material is suited for use.

Frequently Asked Questions about TPEs Is there a service temperature for TPEs? The term Service Temperature is loosely used to define the maximum temperature at which a material is suited for use.

Kedrowski Page 38 Operational Excellence • Operational Excellence is a never-ending quest for improvement in response to the voice of our customers and shareholders • It is all about strengthening our capabilities to deliver value flawlessly to our customers deliver value flawlessly to our customers • It challenges us to enhance our productivity, profitability, and efficiency in all phases of our business, from safety to quality to waste elimination to environmental stewardship Page 39 Lean Six Sigma Initiative • In 2009, Lean Six Sigma was launched to improve execution skills across all businesses, functions, and global regions • A company-wide diagnostic was conducted, resulting in identification of six conducted, resulting in identification of six strategic improvement platforms • Financial targets were estimated, resources identified and trained results delivered , Page 40 PolyOne OSHA Recordable Incidence Rate 4 5 6 5.1 Safety Performance *Rubber And Plastics Manufacturing Industry (2010 Bureau of Labor Statistics). 0 1 2 3 2005 2006 2007 2008 2009 2010 2011 Industry Average 1.4 1.3 1.1 1.1 0.85 0.65 0.57 Page 41 • Exemplary on-time delivery • Best-in-class working capital % of sales 81% 87% 88% 95% 93% 92% 94% 2005 2006 2007 2008 2009 2010 2011 On-Time Delivery* Lean Six Sigma Delivering Results • Approximately $200M in cash driven by working capital improvements 16.2% 14.4% 18.9% 11.7% 9.6% 9.6% 2006 2007 2008 2009 2010 2011 WC % of Sales 2005 2006 2007 2008 2009 2010 2011 *As measured to customer request date Page 42 40.0% Percent of Associates Trained in LSS World’s Best Start-up Program in 2009* World’s Best Business Process Excellence Program in 2012* Award-Winning Lean Six Sigma Program *Both awards received from International Quality and Productivity Center 16.5% 40.0% 2009 2011 Page 43 • Globally leverage strategic supplier management best practices • Implement world class demand management processes Critical Imperatives • Improve operational reliability and efficiencies • Optimize global freight management Drive 50 – 100 basis points of gross margin expansion per year Page 44 Page 45

LEADING GARDEN TOOLS BRAND O S C I L L A T I N G S P R I N K L E R S • Superior abrasion resistance performance • Ability to pass standard UV testing as well as the customer’s more stringent UV criteria • Global support and material availability • Developed a customized TPE material with superior UV resistance, adhesion to ABS, and demolding • Leveraged in-house UV chamber tests to exceed UV parameter requirements • Worked closely with customer’s product development, engineering and quality teams to test and specify material • Supplied grade globally with local technical and manufacturing support OnFlex™ S KE Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION GLOBAL PRESENCE + UV RESISTANCE LEARN MORE Copyright © 2020, Avient Corporation.