Discharge inks allow printers to achieve bright discharge whites and colors, and are available in non-formaldehyde-containing ranges All Zodiac Aquarius inks comply with the Pantone® system of colors and are available in the PolyOne IMS 3.0 color matching system

Manufactured and commercially available in North America only, they provide a UL 94 flame rating and structural integrity to manufacturers seeking alternatives to metal or underperforming short-fiber solutions. These formulations are not available for purchase and are not intended for use in countries outside of North America and South America.

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 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; 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.

• You can be certain that Avient meets or exceeds the material safety data reporting requirements of your country or region. • When you choose Avient, you can be confident our products will help you meet or exceed today’s stringent compliance standards. CHARACTERISTICS TPE THERMOSET RUBBER LIM* SILICONE PVC Compression Set Good Excellent Excellent Fair Heat Resistance Good Excellent Excellent Fair UV/Ozone Resistance Good Good Good Good Chemical Resistance Good Excellent Excellent Good Barrier Properties Excellent Good Excellent Excellent # of Manufacturing Steps Excellent Good Good Excellent Supply Chain Availability Excellent Excellent Fair Excellent Colorability Excellent Good Good Excellent Total Costs $$ $$$ $$$$ $ THERMOPLASTIC ELASTOMERS FOR HEALTHCARE GENERAL CHARACTERISTICS COMPARING TPE, RUBBER, SILICONE, AND PVC We offer a broad range of TPEs solutions that are specially formulated to meet demanding healthcare device and application challenges. MATERIAL DESCRIPTION BASE RESIN Trilliant™ HC2020 Copolyester Trilliant™ HC8910/8920 Polyketone/ABS blend Trilliant™ HC2120 Tritan Trilliant™ HC3120 PC Trilliant™ HC5210 PP Trilliant™ HC6010 PA6 Trilliant™ HC6610 PA66 Trilliant™ GRV-NP-110-W PA12 TRILLIANT™ HC THERMOPLASTICS • Chemically resistant replacement for FR PC/ABS, FR PC/PET & FR COPE, providing UL 94 Yellow Card V-0 flame rating at 1.5 mm, V-1 at 0.75 mm thicknesses for a broad color spectrum • Outperforms PC/ABS, PC/PET and COPE in resistance to common disinfectants • Retains tensile strength after 72-hour exposure to common hospital disinfectants, and shows better long-term chemical resistance as compared to PC blends and COPE • Exhibits good impact and temperature resistance • Available in natural grades, standard medical colors, or custom pre-colored products Applications: • Medical device housings • MRI, X-ray, CT scanner components • Surgical instruments such as staplers, dissectors, scissors • Auto-injector pen TRILLIANT™ HC ELECTRICALLY CONDUCTIVE FORMULATIONS • Consistent conductivity ensures repeatable part performance and minimizes failures related to inconsistent electrical conductivity • High flow and easy processing facilitate filling of thin wall parts and multiple cavity tools, which enable faster cycle times and lower per-unit part costs • Superior durability reduces breakage and resultant scrap related costs • Less tendency to flash results in improved appearance and less fluid retention in or on the tip, thus driving greater accuracy and less potential for cross-contamination • High strength produces parts with greater stiffness and warp resistance, again minimizing scrap-related costs Applications: • Conductive pipette tips TEST TEMS SPECIFIC GRAVITY MELT FLOW RATE (230OC, 2.16KG) TENSILE STRENGTH FLEXURAL STRENGTH FLEXURAL MODULUS IMPACT STRENGTH NOTCHED, IZOD SURFACE RESISTIVITY Method ASTM D-792 ASTM D-1238 ASTM D-638 ASTM D-790 ASTM D-790 ASTM D-256 ASTM D-257 Unit -- g/10min MPa MPa MPa J/m Ohms/sq.

The meeting notice and proxy materials were made available to shareholders with this annual report. FINANCIAL INFORMATION Security analysts and representatives of financial institutions are invited to contact: Joe Di Salvo Vice President, Treasurer and Investor Relations Phone: 1-440-930-1921 Email: giuseppe.disalvo@avient.com AUDITORS Ernst & Young LLP North Point Tower II, Suite 1800 1001 Lakeside Ave Cleveland, OH 44114 INTERNET ACCESS Information on Avient’s products and services, news releases, corporate governance, EDGAR filings, Reports on Forms 10-K and 10-Q, etc. as well as an electronic version of this annual report, are available on the Internet at www.avient.com. THIS PAGE IS NOT PART OF AVIENT’S FORM 10-K FILING THIS PAGE IS NOT PART OF POLYONE’S FORM 10-K FILINGTHIS PAGE IS NOT PART OF POLYONE’S FORM 10-K FILINGTHIS PAGE IS NOT PART OF AVIENT’S FORM 10-K FILING Reconciliation of Non-GAAP Financial Measures (Unaudited) (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.

Hydrocerol concentrates in pellets are available in different carriers and loadings and a variety of endothermic components. Endothermic versus exothermic PROCESSING GUIDE In principle, CFAs can be processed on almost any commercially available injection molding unit. The activation of Hydrocerol Chemical Foaming Agents should happen approximately in the middle of the barrel exceeding the temperature indicated in the technical data sheet of the processed Hydrocerol concentrates grade.

We began making our proxy materials available to shareholders on March 27, 2024. In preparing competitive market data for 2023, we drew from two independent sources. The second independent source of data that we used to augment the peer proxy analysis was the Consultant’s analysis of competitive market data relating to other applicable general industries.

Available in North America, injection-moldable reSound™ REC TPEs utilize 9-83% recycled content, and both grades can be overmolded onto polypropylene (PP).

Available in North America, injection-moldable reSound™ REC TPEs utilize 9-83% recycled content, and both grades can be overmolded onto polypropylene (PP).

The pre-formulated material boasted one more important property: it was available for just-in-time delivery.