There are two types of recycled content: post-consumer recycled (PCR) or post-industrial recycled (PIR). Due to the commingled nature of the recycled stream for PCR raw material, the application will typically need to be a darker color such as black or dark gray Uncolored TPEs are naturally dark (typically in gray or brown), based on assorted colors from recycle streams 

Recycled-content TPEs and polyamides Available in North America, injection-moldable reSound R VX TPEs utilize 25 percent (PCR) and up to 40 percent (PIR) recycled content, and both grades can be overmolded onto polypropylene (PP). TPEs, as well as recycled nylon 6 and 66, are commercially available in North America. About Oceanworks Oceanworks® is the global marketplace for recycled ocean plastics.

This innovation drives performance and is reflective of consistent, strategic investments in technology and people Clariant Color business acquired July 1, 2020 1 1 2 3 5 7 7 7 9 10 30 40 14 25 13 22 35 9 19 13 18 41 Current Additional share needed to reach 2025 target B R A N D O W N E R S C O M M I T T E D TO I N C R E A S I N G U S E O F R E C YC L E D M AT E R I A L S 8 Brand Owner 1 Brand Owner 3 Brand Owner 2 Brand Owner 7 Brand Owner 4 Brand Owner 10 Brand Owner 6 Brand Owner 11 Brand Owner 5 Brand Owner 8 Brand Owner 9 Brand Owner 12 Brand Owner 13 Percent recycled plastic used: (examples and not exhaustive) (1) (1) Latest year reported. Post-consumer recycled content as percentage of total plastic packaging volume, by weight E NA B L I N G T H E U S E O F R E C YC L E D C O N T EN T T O P 5 G A P S T H A T W E A R E A D D R E S S I N G 2) DECONTAMINATION1) COLOR MANAGEMENT 3) MAINTAINING MECHANICAL PROPERTIES 4) MONO-MATERIAL CONSTRUCTION 5) CONSISTENT RECYCLED MATERIAL QUALITY 9 G U I D I N G B R A N D S T O W H A T I S P O S S I B L E C A S E S T U DY W I T H B R A N D OW N E R Recycled ResinVirgin Resin 10 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 11 • Revenue from sustainable solutions expected to grow 18% in 2021 as our innovation efforts and collaboration with customers continues to accelerate • Investments centered around innovation and global sustainability megatrends o Enabling a circular economy – Technologies that allow for increased use of post-consumer recycled (PCR) material and improve recyclability of plastics 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 1111 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business 2016 2017 2018 2019 2020PF** 2021E $405M $455M $340M $550M $790M Revenue From Sustainable Solutions* 2016-2021 $930M Q3 2020 $925 $74 Sustainable Solutions 35 19% 14 Healthcare 51 44% 10 Composites 13 39% 6 Growth in Asia / LATAM 14 11% 3 Other 177 39% 16 Sub-total $1,215 31% $123 Supply Chain Disruption Costs (19) COVID Response Applications (5) (3) FX Impact 10 2 Synergies 12 Incentives, Travel, Other Employee Costs (16) Q3 2021 $1,220 32% $99 Q3 2021 SALES AND OPERATING INCOME ( T O TA L C O M PA N Y ) 12 Sales Growth Rate Adjusted Operating Income$ millions 13 Q3 2020 Q3 2021 (1) Financial information is presented on a constant currency basis (1) (44% of total revenue) (56% of total revenue) Q3 END MARKET SALES PERFORMANCE +20% +31% +40% +24% +46% +40% +14% +33% Energy Telecom Building & Construction Transportation Industrial Healthcare Packaging Consumer Q3 YEAR-OVER-YEAR EBITDA BRIDGE 14 • Demand driven by growth in sustainable solutions, healthcare and consumer applications • Price increases more than offsets raw material and supply chain impacts • Synergy capture on pace to achieve $50M in annual savings in 2021 Q3 2020 $ 111 Demand 29 Adjusted EBITDA$ millions CAI: Price / Mix 51 Inflation (37) SEM: Price / Mix 25 Inflation (22) Distribution: Price / Mix 108 Inflation (103) Net Price Benefit 22 Supply Chain Disruption Costs (19) COVID Response Applications (3) Synergies 12 Incentives, FX, Other (16) Q3 2021 $ 136     15 • Price increases have more than covered raw material and freight inflation impacts of $300M year- to-date compared to 2020 • Demand impact driven by Q3 seasonality for the business Q2 TO Q3 SEQUENTIAL EBITDA BRIDGE Q2 2021 $ 159 CAI: Price / Mix 17 Inflation (8) SEM: Price / Mix 6 Inflation (5) Distribution: Price / Mix 35 Inflation (35) Net Price Benefit 10 Supply Chain Disruption Costs (4) Demand / Seasonality (35) Other 6 Q3 2021 $ 136 Adjusted EBITDA$ millions     F U L L Y E A R 2 0 2 1 O U T L O O K $308 $430 2020PF 2021E $1.93 $3.00 2020PF 2021E FULL YEAR GROWTH PROJECTIONS ( T O TA L C O M PA N Y ) 17 Sales Adjusted Operating Income $3,783 $4,750 2020PF 2021E + 26% Adjusted EPS + 40% + 55% (in millions) (in millions) (1) Financial information is pro forma to include a full year of Clariant Color acquisition (1)(1)(1) $1.74 $1.93 $3.00 2019PF 2020PF 2021E $442 $457 $580 2019PF 2020PF 2021E FULL YEAR 2019 – 2021 GROWTH ( T O TA L C O M PA N Y ) 18 Sales Adjusted EBITDA $3,981 $3,783 $4,750 2019PF 2020PF 2021E + 19% Adjusted EPS (1) Financial information is pro forma to include a full year of Clariant Color acquisition (1) (1) (in millions) (in millions) (1)(1) + 31% + 72% (1) (1) 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 1.0 11 12 13 14 15 16 17 18 19 20 21 40% 99% YTD 5 - YR 10 - YR 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 0.95 11 12 13 14 15 16 17 18 19 20 21 22 2.1x Q4 NET LEVERAGE ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$450MM PAID OVER LAST 11 YEARS C R E AT I N G VA LU E F O R SH A R E H O L D E R S 19 Share Performance Dividends Share Repurchases Deleveraging 3.5x 2.1x 2019PF 2021E Growing Dividend Cumulative Buybacks Net Leverage $ B n $ p e r sh a re Total Shareholder Return ~$4Bn MARKET CAP INCREASE OVER LAST 10 YEARS (1) Share performance includes reinvested dividends and is as of 10.25.2021 (2) Financial information is pro forma to include a full year of Clariant Color acquisition (1) (2) 494% 2 0 2 1 AV I E N T I N V E S TO R DAY 20 • Investor Day to be held December 9, 2021 in New York, NY • The company will be doing a deep dive into its key long- term growth drivers with a particular focus on sustainable solutions Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites / 5G 10% Growth in Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% • Senior leadership team will also provide further details on the Clariant Color integration, as well as capital allocation priorities PEER COMPARISONS 21 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. With the Clariant Color business acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 24 Avient reflects 2021 estimated EBITDA of $580M O U R VA LUATI O N V E R S U S P E E R S Avient Specialty Formulators Other Chemical/Specialty Companies 11.0 18.3 16.3 15.4 14.5 11.6 11.1 36.2 28.0 24.9 13.0 11.5 11.3 10.0 9.2 8.8 7.7 6.7 A vi e n t K W R P P G A V Y R P M F U L G C P A L B H X L E C L A S H F M C B N R S C L U N V R E M N C E H U N S U M M A RY: W H Y I N V E S T I N AV I E N T ?

POLYOLEFINS ALIGNING WITH SUSTAINABILITY GOALS POLYOLEFINS ARE EVERYWHERE Polyethylene (PE) and polypropylene (PP) are among the most popular plastics in the world. And, they can fit a sustainable model as they have a high potential to be successfully recycled. This can include increasing the percentage of post-consumer recycled content (PCR), reducing the carbon footprint during production or shipping, or improving package recyclability.

Recycled raw materials come in two forms: post-industrial recycled (PIR) and post-consumer recycled (PCR). Black or dark gray colors are typically easier to achieve with recycled materials due to the comingled items that may contaminate the recycling stream. However, black or dark gray colors can be difficult to be detected by near-infrared (NIR) automatic sorting equipment at recycling facilities.

Nymax™ REC Recycled Nylon Formulations: two new super tough PA6 and PA66 grades added to Avient’s recycled content portfolio, each containing post-industrial recycled content, resulting in up to 81% lower cradle-to-gate product carbon footprint than traditional alternatives made without recycled content, and will be presented during Avient’s technical seminar at NPE, “Exploring Sustainable Alternatives to Traditional Polyamides,” by Jeremy Gray, Application Development and Technical Service Engineer, Specialty Engineered Materials at Avient, on May 9 at 11 a.m. Enhancing Recyclability: Increasing recycled content in polymers and enhancing recyclability through intelligent design to develop innovative approaches to brand differentiation and meet consumer demands for eco-conscious products   Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy

CHEMICAL RESISTANT TPEs ADD FUNCTIONALITY THAT BRINGS VALUE TO CONSUMERS • Chemical Resistance – Resists aggressive soaps, detergents, lotions, oils and solvents found in cosmetic, personal care and household products • Regulatory* – Compositionally compliant with certain FDA and REACH regulations • Value – Economical alternative to silicone and over-engineered medical grade TPEs • Easy to Process – Can be injection molded and overmolded right onto the substrate including PP, ABS, etc Differentiation – Add color and texture to stand out from the competition • Recyclable – TPEs are compatible with most municipal recycle streams • Global Support – Avient is a global supplier with manufacturing and technical support in Europe, Asia and North America To learn more about chemical resistant GLS TPEs for packaging, contact Avient at +1.844.4AVIENT (+1.844.428.4368).

Homepage // News Center // New Black Colorants from PolyOne Support Circular Economy, Turn Former Waste into Recyclable Packaging These colorants will help black packaging support the circular economy by enabling them to be recycled rather than landfilled. OnColor™ Infrared Sortable Black for Recyclable Packaging contain no carbon black pigment, permitting the automatic optical sorting sensors used in many waste management plants to detect black polymers and sort waste into the correct recycling streams.

PMS 324C PMS Cool Gray 11C PMS Black 6C PMS 290C PMS 1767C PMS 144C PMS 3405C PMS 358C

Recycled Content & Recyclability We offer color concentrates that use post-consumer recycled (PCR) polypropylene (PP) and polystyrene (PS) as carrier resin. Recyclability Assessment at CycleWorks™ Our Cycleworks™ Innovation Center specializes in testing and evaluating recycling solutions. Recycling trials taking into consideration standard recycling protocols can be run to provide a real- world recyclability evaluation.