reSound™ Ultra-Low Carbon Footprint TPEs are formulated to achieve a negative, neutral or low carbon footprint versus traditional TPEs. reSound™ Biopolymer Formulations combine engineering thermoplastic resins with bio-polymers such as PLA, PHB, PHBV and biopolyesters.

Avient Launches Additional reSound™ Bio-Based TPEs Formulated with Renewable, Plant-Derived Content Avient expands sustainable portfolio with nine new reSound™ BIO TPEs formulated with up to 75% renewable, plant-based content.

Avient Expands reSound™ TPE Portfolio With New Grade Formulated With FDA-Reviewed, Post-Consumer Recycled Material Caption: Avient expands reSound™ TPE portfolio with a grade formulated using post-consumer recycled content that received No Objection Letter from U

I hope the relationship between Avient and Virginia Tech will continue to grow.” Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility   Dedicated to its motto, Ut Prosim (That I May Serve), Virginia Tech pushes the boundaries of knowledge by taking a hands-on, transdisciplinary approach to preparing scholars to be leaders and problem solvers.

Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) J A N UA RY 2 0 2 4 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. Avient reflects 2023 adjusted EBITDA guidance of $500M and estimated run-rate CAPEX of $110M. 2023E (%) 27 78 89 83 80 78 74 86 79 76 67 66 55 50 (39) Av ie nt KW R FU L PP G AV Y R PM FM C C E EC L AS H H XL H U N EM N SC L Avient Specialty Formulators Other Specialty / Chemical Companies MULTIPLE EXPANSION Source: Peer data per Bloomberg as of December 29, 2023 Note: Avient reflects 2023 adjusted EBITDA guidance of $500M and closing share price of $41.57. 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.

TU-0612072 NATURAL PC-30GF/15T NATURAL 386CGNS PANTONE(R) 386 C SIMULATION

16899-06 EXPL9098 natural Royalite R-59 16899-07 EXPL9098 natural Royalite R-59

X S1054A F-3 Natural X S1054A F-4 Natural 539CPFXAB EPIC PANTONE(R) 539 C SIM

16899-02 EXPL9095 NATURAL(Royalite R-61) 3435CAB PANTONE(R) 3435 C SIMULATION MB1767A LIGHT NATURAL BEIGE TL2

COOKWARE MANUFACTURER A I R F R Y E R W I N D O W • Clear, FDA food-contact compliant material that can be run through a dishwasher • Able to withstand long-term steam and heat • Allows injection molding of a complex shape with aesthetics that convey cleanliness and quality • Added concentrate to a natural PES material allowing it to retain clarity and aesthetics in an FDA-compliant solution • Enabled material to withstand sterilization and maintain continuous heat resistance • Provided a more pleasing appearance that could command a greater price point due to perception of higher quality Colorant Chromatics™ PESU Concentrate KEY REQUIREMENTS WHY AVIENT?