PolyOne Helps Global Vision 2020 Bring the USee™ to Life Global Vision 2020 is a nonprofit on a mission to bring better vision to the 2.5 billion people across the globe who currently have no access to eye c

Avient can help. With our color and design support, your bottle can get noticed quickly. ACHIEVING BOTTLE OPTIMIZATION Avient can support every type of bottle blow- molding application.

The webcast can be viewed live at avient.com/investors, or by clicking on the webcast link here. https://www.avient.com/investors https://sustainabilityday2023.avient.com/ https://www.avient.com/investors https://register.vevent.com/register/BI0b9400e410674b9d9dc80471579b64b9 https://www.avient.com/investors/events-presentations About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Examples include: • Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®.

You can identify these statements by the fact that they do not relate strictly to historic or current facts. D I S T R IBU T I O N) 18 END-MARKET FOCUS FOR NEW INNOVATION Semiconductors Robotics Healthcare Interconnected disruptive markets with massive innovation needs 19 APPENDIX Performance Additives Pigments TiO2 Dyestuffs 3%Polyethylene Nylon 6% Polypropylene Other Raw Materials 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 22 • Significant raw material price inflation and tight inventory continued in Q2 2022, although at a slightly lesser rate compared to the prior quarter o For Q2 2022, the average cost of key hydrocarbon based materials was up 15%, roughly the same as the average cost of non- hydrocarbon based materials Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% Latin America 2021 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 19% Building and END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $4,819M and $581M, respectively, include intercompany sales eliminations and corporate costs $2,402M $409M $919M $164M $1,631M $94M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $581M$4,819M (1) 24 34% Building & 1% Telecommunications C O L O R , A D D I T I V E S & I N K S 2021 REVENUE | $2 .4 BILL ION 32% 40% Latin America END MARKET REGION 25 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 27% Building & 2021 REVENUE | $919 MILLION END MARKET 55% REGION 26 D I S T R I BU T I O N 26% Building and 80% 3% Latin America END MARKET REGION K E Y S U P P L I ER S 2021 REVENUE | $1 .6 B ILL ION 27 TOTA L C O M PA N Y R E G I O N A L S A L E S BY END MARKET 30% 26%Healthcare 14% Building & 2% Energy (16% of sales) 32% Building & (25% of sales) 28 19% Building & US & Canada (50% of sales) 38% 33% Building & LATAM (9% of sales) 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.

We work collaboratively to fully understand the performance requirements, industry nuances, and regulatory demands needed to bring a vision to life. Product Validation Molding With Customer Tooling • Avient also has the ability to bring customer tooling onsite to conduct trials. Processing conditions can cause material properties to shift from the values stated in the information.

We work collaboratively to fully understand the performance requirements, industry nuances, and regulatory demands needed to bring a vision to life. Product Validation Molding With Customer Tooling • Avient also has the ability to bring customer tooling onsite to conduct trials. Processing conditions can cause material properties to shift from the values stated in the information.

This means ensuring the materials and products we create and bring into the ecosystem can be recycled or upcycled to avoid waste and minimize downcycling (reuse in a degraded form). If not recycled properly, plastics can ends up in a landfill or, even worse, the ocean. Efforts can be made and systems can be built to keep discarded plastic in the economy to either be upcycled, recycled, reused or composted.

We understand the challenges you face and are ready to help you bring your next-generation designs to life. Processing conditions can cause material properties to shift from the values stated in the information. Contact Avient to tap into our material science expertise and comprehensive product development support services to help you bring your ideas to market faster.

It sparks innovation, creates choice, and brings about higher-quality products and services at lower prices. Violations can happen without corrupt intent and can lead to serious consequences for both you and the Company. Reciprocal Dealing—Any agreement with a customer that says, “I will buy from you provided that you buy from me

Thermoset Composite Springs For Indoor and Outdoor Furniture APPLICATION BULLETIN Bringing you one of the most comprehensive spring portfolios in the industry. Make the switch to Avient’s thermoset composite springs, made with our proprietary resin/fiber reinforcement technologies, to gain value in a variety of furniture spring applications: • Superior overall performance • Long term corrosion resistance • High fatigue strength • Deep deflection • Excellent inter-laminar shear strength • Creep resistance • Minimal work hardening • Consistent, repeatable cycles for a lifetime of use With extensive experience in composite spring technology, a wide range of rectangular sizes, and rapid, customized product development capabilities, we can help you create durable, reliable and cost-effective furniture for indoor or outdoor use. Processing conditions can cause material properties to shift from the values stated in the information.