Color-coated, high-performance fabric for a textile manufacturer Colorant Chromatics™ Pre-colored Grey PSU offered customizable high-performance solutions along with a variety of color design possibilities High-Temperature Cables for Oil & Gas Industry

Color-coated, high-performance fabric for a textile manufacturer Colorant Chromatics™ Pre-colored Grey PSU offered customizable high-performance solutions along with a variety of color design possibilities High-Temperature Cables for Oil & Gas Industry

Minimize signal loss to enable high-speed connectivity with Versaflex™ CE 3140 TPEs with 5G transparency for phone cases and 5G devices (Chinese language version) Achieved miniaturization through customized high dielectric constant (Dk) materials Minimize signal loss to enable high-speed connectivity with Versaflex™ CE 3140 TPEs with 5G transparency for phone cases and 5G devices

Minimize signal loss to enable high-speed connectivity with Versaflex™ CE 3140 TPEs with 5G transparency for phone cases and 5G devices (Chinese language version) Achieved miniaturization through customized high dielectric constant (Dk) materials Minimize signal loss to enable high-speed connectivity with Versaflex™ CE 3140 TPEs with 5G transparency for phone cases and 5G devices

High Performance Clear Thermoplastics Elastomer - White Paper Learn about colorful options for high temperature polymers Learn about how our high quality antioxidant dispersions and emulsions achieve standardization in meeting global requirements

MAJOR AUTOMOTIVE OEM R O O F R A C K • Impact resistance • UV stability over time • Color match to specific black color • Developed a supply chain agreement to ensure reliable supply and mitigate risk • Provided just-in-time delivery to help the customer keep working capital low and maximize warehouse space • Provided a product that supports sustainability to potentially enhance the marketplace appeal of the customer’s end product Nymax™ REC Recycled Nylon Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION IMPACT + UV STABILITY LEARN MORE Copyright © 2024, Avient Corporation.

M I L I TA RY A N D TA C T I C A L G E A R M A N U FA C T U R E R H O L S T E R • Impact resistance in all temperatures • Strength • Ductility • UV resistance • Easy to process • Color match to specific black color • Supported material selection and provided technical processing expertise through our application development and technical service team • Enabled two-day delivery through regional stocking strategies Nymax™ REC Post-Industrial Recycled Nylon Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION IMPACT + TENSILE STRENGTH LEARN MORE Copyright © 2020, Avient Corporation.

T P E E A N D T P U F I L M M A N U FAC T U R E R H O T M E L T A D H E S I V E F I L M • Anti-phenol yellowing after storage • Keep natural color of product • No impact on melt flow ability • Prevented the appearance quality from yellowing after storage • Had no negative impact on the product’s mechanical properties • Extended the shelf life and durability of the product CesaTM Anti-phenolic Yellowing Additive KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION FUNCTIONALITY + CONVENIENCE LEARN MORE Avient Corporation 1 https://www.avient.com/products/polymer-additives Slide 1: TPEE and TPU Film MANUFACTURER

Special items for the fourth quarter of 2022 had a $(0.42) impact on EPS and included acquisition-related costs that primarily consist of inventory step-up adjustments, restructuring costs, debt extinguishment costs, and a pension market-to-market adjustment. 2 On a pro forma basis, fourth quarter and full year adjusted EPS were $0.42 and $3.04, respectively, which excludes special items and intangible amortization expense, exceeding previous guidance of $0.33 and $2.95. That being said, versus the prior year, global demand conditions and inventory destocking negatively impacted nearly every industry and region during the quarter,” Mr. Three Months Ended December 31, 2022 2021 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results (Loss) income from continuing operations before income taxes $ (77.4) $ 104.3 $ 26.9 $ 27.4 $ 20.5 $ 47.9 Income tax benefit (expense) - GAAP 60.8 — 60.8 (17.1) — (17.1) Income tax impact of special items (Attachment 3) — (26.8) (26.8) — (4.1) (4.1) Tax adjustments (Attachment 3) — (39.2) (39.2) — 7.5 7.5 Income tax benefit (expense) $ 60.8 $ (66.0) $ (5.2) $ (17.1) $ 3.4 $ (13.7) Effective Tax Rate(1) 78.5 % 19.6 % 62.4 % 28.6 % (1) Rates may not recalculate from figures presented herein due to rounding 15 Year Ended December 31, 2022 2021 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results Income from continuing operations before income taxes $ 63.8 $ 194.0 $ 257.8 $ 203.5 $ 57.1 $ 260.6 Income tax benefit (expense) - GAAP 19.3 — 19.3 (51.9) — (51.9) Income tax impact of special items (Attachment 3) — (49.4) (49.4) — (13.0) (13.0) Tax adjustments (Attachment 3) — (28.4) (28.4) — 5.9 5.9 Income tax expense $ 19.3 $ (77.8) $ (58.5) $ (51.9) $ (7.1) $ (59.0) Effective Tax Rate(1) (30.2)% 22.7 % 25.5 % 22.7 % (1) Rates may not recalculate from figures presented herein due to rounding Three Months Ended Year Ended Reconciliation of Pro Forma Adjusted Earnings per Share December 31, 2022 Net (loss) income from continuing operations attributable to Avient shareholders $ (17.0) $ 82.8 Special items, after tax (Attachment 3) 38.3 116.2 Amortization expense, after-tax (Attachment 1) 14.6 49.0 Adjusted net income from continuing operations excluding special items 35.9 248.0 APM pro forma adjustments to net income from continuing operations* 2.5 13.6 APM amortization expense, after tax* — 19.1 Pro forma adjusted net income from continuing operations attributable to Avient shareholders $ 38.4 $ 280.7 Weighted average diluted shares 91.7 92.2 Pro forma adjusted EPS - excluding special items $ 0.42 $ 3.04 * Pro forma adjustment for January - August 2022 APM results (period before Avient ownership) including the impacts of debt financing and prepayments on net income from continuing operations.

High density materials that can deliver a premium feel Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (English language version) Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (Spanish language version)