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;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. Q1 2023 ( T O TA L C O M PA N Y ) $846 $829 Q1 23 Q1 24 $134 $143 Q1 23 Q1 24 17.3% Sales Adjusted EBITDA (in millions) $0.63 $0.76 Q1 23 Q1 24 Adjusted EPS (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 9 - 2% 15.8% +150 bps * * * Adjusted EBITDA Margin % Q1 2024 SEGMENT PERFORMANCE ( C O L O R , A D D I T I V E S & I N K S ) $537 $515 Q1 23 Q1 24 $91 $97 Q1 23 Q1 24 18.8% Sales Adjusted EBITDA (in millions) (in millions) + 7% Sales Adjusted EBITDA 10 - 4% 17.0% +180 bps * * * Adjusted EBITDA Margin % • Year over year demand continues to improve for the segment but slowly due to continued weakness in Europe • Raw material deflation & cost reduction actions primary drivers of adjusted EBITDA growth and margin expansion of +180 bps vs Q1 2023 Q1 2024 SEGMENT PERFORMANCE ( S P E C I A LT Y E N G I N E E R E D M AT E R I A L S ) $310 $314 Q1 23 Q1 24 $64 $73 Q1 23 Q1 24 23.2% Sales Adjusted EBITDA (in millions) (in millions) + 14% Sales Adjusted EBITDA 11 + 1% 20.8% +240 bps * * * Adjusted EBITDA Margin % • Sales growth in defense end market offset by weaker demand in telecommunications end market • Raw material deflation and favorable mix impact from defense sales primary drivers of adjusted EBITDA growth and margin expansion of +240 bps vs Q1 2023 Q1 EBITDA BRIDGE ( T O TA L C O M PA N Y ) 12 $ millions CAI: Price / Mix (1) Deflation 16 SEM: Price / Mix 4 Deflation 7 Net Price Benefit 26 Wage/Other Inflation (9) FX (2) Q1 2024 $143 Adjusted EBITDA Q1 2023 $ 134 Demand (6) • Positive net price benefit: o Favorable raw material deflation in both segments • Wage and other inflation more than offset cost reductions/synergies 2 0 2 4 G U I D A N C E FY 20 24 GUIDA NC E Original Revised Adjusted EBITDA $505 to $535 million $510 to $535 million Adjusted EPS $2.40 to $2.65 $2.50 to $2.65 Interest Expense $105 to $110 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 14 Q2 2024: Adjusted EPS of $0.71 C E O “ T O P O F M I N D ” F O C U S A R E A S AREAS OF FOCUS 16 +7% Drive Profitable Organic Top-Line Growth with Margin Expansion Amplify Innovation Build Leadership & Talent Pipeline A P P E N D I X 19 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RA W MATERI AL BA SKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 21 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2 0 2 3 R E V E N U E | $ 2 . 0 B I L L I O N US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 22 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR , AD DI TI VES & INKS 2 0 2 3 R E V E N U E | $ 1 . 1 B I L L I O N US & Canada 52% EMEA 35% Asia 13% 23 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPEC IA LTY ENGI NEER ED MATERI ALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 3 AV I E N T R E G I O N A L S A L E S Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 24 B Y E N D M A R K E T Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

This document is property of Avient Corporation and may not be reproduced or communicated to third parties without authorization. 8.0 Technology Is there a review program to control and assure proper development of products from the research state through production? Is an effective internal auditing program in place? Does Avient have a supplier rating/evaluation program?

3.6.1.26) Strategy to realize opportunity Our Research and Development teams are continually tasked with the development of new products and services, while continuing to adhere to standards defined by programs such as our Sustainability Solutions, where possible. Below is an example of our global recognition programs: Our Chairman’s Leadership Award recognizes our top performing General Manager for performance, culture and inspirational leadership These sites are currently developing site-specific mitigation actions including water conservation programs.

These collections, which draw upon global trends and expertise in color research, have been developed for brands and designers to inspire future creative decision-making. Whether they are developing a new color range or adapting existing colors to accommodate a new phase in their product’s lifecycle, these innovators can work with InVisiO services throughout the design development process to bring their vision to life.” Color Inspirations 2016 is just one of the exciting elements from InVisiO Color and Design Services, which leverages comprehensive color and materials resources from PolyOne to drive innovation in plastic product development.

CLEVELAND – When French outdoor equipment specialist Avanona began development of a new range of hunting and camping knives, the company’s designers wanted to extend the innovation to the knives’ sheaths as well. PolyOne developed a material for our company that is durable, functional and looks great, just like our knives,” said Jean-Charles Quesnel and Philippe Héberlé, the co-founders of Avanona. Collaborating closely with Avanona, polymer science experts from PolyOne developed the Bergamid material to provide excellent surface finish and the durability to withstand extreme use.

Available for polyester and polyamide (nylon), including recycled grades – possibility to develop solutions for bio-polymers Discover Cesa™ Fiber Tracer Concentrates, a low-investment and efficient taggant technology specifically developed for synthetic fibers. Find out how you can increase the traceability of textile products with Cesa Fiber Tracer Concentrates, a low-investment and efficient taggant technology specifically developed for spun-dyed polypropylene and polyamide (nylon) fibers.

Discover FEA capabilities and the benefits for new product development. Learn best practices to reduce development time and improve product performance Transform Product Development

We continue to work with our customers to develop innovative sustainable solutions. In addition to our material solutions, Avient has developed services to further enable our customers’ ability to meet their commitments, including Cycleworks, ColorWorks and Avient Design. Avient’s PCR Color Prediction Service helped L’Oréal simplify overall color development with recycled resin.

History Kevlar® was first developed by chemist Stephanie Kwolek at DuPont™ in the 1930’s. Key Features • High strength to weight ratio • Low elongation to break • Good heat & flame resistance • Good chemical resistance • High cut resistance • Excellent ballistic properties Disadvantages • Kevlar® suffers from UV degradation, which causes strength loss and discoloration • Propensity to absorb moisture, up to 5% moisture regain • Poor compressive force properties FIBER-LINE® PROCESS FOR KEVLAR® • Coating • Twisting • Extrusion • Pultrusion • Precision Winding FIBER-LINE® KEVLAR® PRODUCTS • Ripcords • Strength Members • Industrial Fabric Yarn • Swellcoat® Binder Yarn in between strength members and industrial fabric yarn • Belt & Hose Reinforcement Yarn • Packing Yarn • Wire Harness Yarn • Synthetic Wire Rope • Kevlar® Distribution Program Property UOM Value Breaking Tenacity g/d 23.6 Specific Gravity Ratio 1.44 Elongation @ Break % 2.5 Tensile Modulus g/d 885 Moisture Regain* % 5.0 Creep** % Through this program, we hope to introduce busi- nesses of all sizes to the benefit of Aramid fibers.

To enable sustainability for our customers, key areas of focus include advancing a circular economy, reducing carbon footprint and developing alternative materials. Organization for Economic Co-operation and Development (OECD) and National Geographic Developing More Sustainable Alternatives