Bio-Derived TPEs: reSound™ BIO

Recycled Content Thermoplastic Elastomers: reSound™ REC

Recycled Content Thermoplastic Elastomers: reSound™ REC

AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) AU G U S T 2 0 2 3 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. WHAT WE DO: WE ARE A FORMULATOR 6 CUSTOM FORMULATION JU LY 27 , 2023 W EB CAS T P RE SE N TATI O N COMPOSITES PORTFOLIO D Y N E E M A ® E X P A N D S O U R E N G I N E E R E D F I B E R S A N D P A N E L S T E C H N O L O G Y LFT Tapes Laminates/Panels Shapes Pultrusion Engineered Fibers 8 DEFENSE TELECOMMUNICATIONS ENERGY TRANSPORTATION Military • Law Enforcement First Responders Body Armor • Helmets Vehicle Protection Sustainable Infrastructure Offshore Wind Electrical Grid Protection EV Battery Components Commercial Laminates Body & Trim • Air Cargo and Railroad Car Panels 5G Applications Fiber Optic Cables Satellite Communications Connectors and Components 9 COMPOSITES SERVE DIVERSIFIED END MARKETS INDUSTRIAL Lifting Slings • Aquaculture High Pressure Pipe Conveyer Springs Q 2 P ER FO RM A N CE Q2 2023 PERFORMANCE VS. Senior management believes the measures described above are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

Edgetek AM-35GF/000 FR NH Natural PINK R-232

4371807C PANTONE(R) 1807C SIMULATION HTR GEON W780L NATURAL 0000

YELLOWCPFXFSB EPIC PANTONE(R) YELLOWC SIM GEON D8501 NATURAL 0000

16220-01 EXPE2585 NATURAL 0000 504CPFX EPIC PANTONE(R) 504 C SIMULATION

368PFX EPIC PANTONE(R) 368 C SIMULATION X ONFORCE LFT PP-60LGF/000 Natural

361CPFX EPIC PANTONE(R) 361 C SIMULATION GF 600 A 20 NATURAL