TRANS BLUE K RESIN YLWPWDMB (50.00% Yellow V-9415 or TY-70) STAN-TONE DB-15597 HI LITE BLUE

STAN-TONE MB-34423 DARK BLUE/GREEN 70/30 STAN-TONE DB-15597 HI LITE BLUE

DEEP BLUE GREEN SAN 70% CRO GREEN/N-HCC12114-G STAN-TONE DB-15597 HI LITE BLUE

In 2023, Avient collected sustainable assessments for 70% of our total direct spend for sourcing.

This high recycled content supports a Product Carbon Footprint (PCF) reduction of >70% compared to technically comparable virgin material¹.

Mevopur™ Healthcare Bio-based Polymer Solutions — to help reduce carbon footprint, this range of color and additive concentrates are formulated with bio-based polypropylene, polyethylene, polycarbonate, acrylonitrile butadiene styrene, and styrenic polymers, offering significant carbon footprint reductions of 70% to 120% compared to their fossil-fuel-based counterparts, and manufactured under the same quality management system as other Mevopur products, they are drop-in solutions that can be used like their fossil-fuel-based counterparts in the injection molding, blow molding, and extrusion of medical devices and pharmaceutical packaging

Bergamid™ polymer formulations and GLS™ TPEs replace metal and provide comfort and usability for Swiss soldiers pocket knife Versaflex™ CE Blue Jean Stain Resistant TPEs

Bergamid™ polymer formulations and GLS™ TPEs replace metal and provide comfort and usability for Swiss soldiers pocket knife Versaflex™ CE Blue Jean Stain Resistant TPEs

AVIENT CORPORATION S E C O N D Q U A R T E R 2 0 2 3 R E S U L T S (NYSE: AVNT) J U LY 2 7 , 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. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 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 4 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 5 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. Q 1 2 0 2 3 -8% +6% -1% Flat 10 Total Avient -2.6% 2023 G U IDA N CE $128 $525 $0.56 $2.40 2023 GUIDANCE 12 $800 $3,280 Sales Adjusted EBITDA Adjusted EPS (in millions) (in millions) 13 • Focused on working capital management, restructuring actions to streamline operations • IT investment to further integrate acquired businesses and capture operational efficiencies • Preserve Free Cash Flow to maintain net leverage CASH FLOW / LEVERAGE ($ millions) 2023E Cash Flow from Operating Activities 320$ Less: CapEx (140) Free Cash Flow 180$ Adjusted EBITDA 525$ Net Debt / Adjusted EBITDA 3.0x SUSTAINABILITY AS A GROWTH DRIVER 14 LONG-TERM REVENUE GROWTH DRIVERS Revenue From Sustainable Solutions* 2016-2022 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** $1,175M *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business ***2022 is Pro Forma for the acquisition of Avient Protective Materials and the divestiture of Distribution 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue SUSTAINABILITY REPORT 2022 • Provides progress on 2030 goals • Reaffirms commitment to U.N.

XHN13301991B EPIC COSMIC BLUE 110ULBFF EPIC PANTONE(R) 110 U HO SIM STAN-TONE DB-15597 HI LITE BLUE