The products we produce can be no better than the raw materials we purchase from our suppliers. Supplier containment shall take place without undue delay to avoid additional defective material shipment. Changes in the supply chain can lead to a reassessment of the supplier.

We can help. Processing conditions can cause material properties to shift from the values stated in the information. This literature shall NOT operate as permission, recommendation, or inducement to practice any patented invention without permission of the patent owner.

Khandpur added, “Despite the near-term uncertainties in the macro environment, we remain focused on what we can control: staying close to our customers and executing our strategy. Building off our strong performance in 2024, I remain optimistic in our team’s ability to achieve the long-term financial targets we shared at Investor Day last December.” 3 Webcast Details Avient will provide additional details on its 2024 fourth quarter and full year results, as well as its 2025 full year outlook during its webcast scheduled for 8:00 a.m. The webcast can be viewed live at avient.com/investors, or by clicking on the webcast link here.

SPECIALTY ENGINEERED MATERIALS PRODUCT SELECTION GUIDE The product design and material specification process can be daunting. Processing conditions can cause material properties to shift from the values stated in the information. This literature shall NOT operate as permission, recommendation, or inducement to practice any patented invention without permission of the patent owner.

Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude. Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude.

You can identify these statements by the fact that they do not relate strictly to historic or current facts. Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, adjusted Free Cash Flow and Adjusted Earnings Per Share, to the most comparable GAAP financial measures on a forward- looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items, and the information is not available without unreasonable effort. Technology hybridization EXISTING EVOLVING Marine composite UV resistance Insulators Composite utility poles Fire-retardant composite Building & construction composite panels Next gen fire-retardant / UV resistant materials Fire-retardant, UV resistant composite utility polesFire retardants Copyright © . 2024 44 Personalized, self-administered 44 SEM PORTFOLIO Copyright © . 2024 45 • Global adoption of remote patient continuous glucose monitoring, respiratory remedies, and biopharmaceutical processes • Customers seek global suppliers, with required quality systems, that offer – Barrier properties to manage chemical ingress – Elasticity for conformance, patient comfort and sealing – Purity to manage extractables – Color / UV stability to differentiate products and extend life $6B ADDRESSABLE MARKET Continuous glucose monitors Respiratory care Biopharma tubing Catheters Copyright © . 2024 46 • Increase in NATO countries and defense spending • High demand for premium performance in military and law enforcement – reducing the weight burden • Strong demand for high performance helmets with capability to protect from increased threats • Dyneema™ provides the highest performance products in the market – up to 20% weight savings compared to competitive products $5B ADDRESSABLE MARKET Vests and inserts Helmets Shields Vehicle armor BUILDING NEW PLATFORMS OF SCALE IN...

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: the ability to successfully integrate acquired businesses into our operations, including whether such businesses will be accretive, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses; 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; an inability to raise or sustain prices for products or services; 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. performance in prior periods without the effect of items that, by their nature, tend to obscure Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude.

The webcast can be viewed at avient.com/investors, or by clicking here: https://edge.media- server.com/mmc/p/edkwvu9r. Examples include: • 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 employs approximately 8,700 associates and is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®. The Company does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for adjusted EBITDA, to the most comparable GAAP financial measures on a forward-looking basis because the Company is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort.

FL.Datasheet IndustrialFabricYarn.indd FIBER OPTICAL CABLES Key Features • Available Flat or Twisted • Material can be “Rolled flat” to remove false or producers’ twist • Metered lengths and various spool sizes available FIBER-LINE® FIBERS FOR INDUSTRIAL FABRIC YARN • Kevlar® Para-Aramid • Nomex® Meta-Aramid • Vectran® Liquid Crystal Polymer (LCP) • Carbon Fiber • Fiberglass • Technora® FIBER-LINE® PERFORMANCE ADDING COATINGS • FIBER-LINE® Colorcoat™: Vibrant Colors for Aesthetic Applications • FIBER-LINE® Wearcoat™: Abrasion & High-Temperature Resistance • FIBER-LINE® Bondcoat™: Adhesion Promotion • FIBER-LINE® Repelcoat™: Water Repellancy • FIBER-LINE® Protexcoat™: UV Degradation Prevention Overview • FIBER-LINE®’s offering of Industrial Fabric Yarn are utilized in a wide range of applications. Packages can be supplied on colored, embossed and/or slit tubes. The product properties may be changed without notice.

• FIBER-LINE® Ripcords can rip thru a myriad of thick jacketing materials and sheathing, even in below freezing temperatures. • Products are precision-wound for solid package integrity and minimal balooning, which yields the greatest length per package Packages can be supplied on colored, embossed and/or slit tubes. The product properties may be changed without notice.