GUIDANCE 12 15.4% 15.9% Adjusted EBITDA Margin % Better-than-expected margins driven by: • Favorable mix - strong demand for composite applications • Raw material deflation Q2 EBITDA BRIDGE 13 ($ millions) CAI: Price / Mix 7) Deflation 11) SEM: Price / Mix 2) Deflation 6) Net Price Benefit 26) Wage and Energy Inflation (10) Cost Reductions 13) FX (2) Q2 2023 Actual $131) Adjusted EBITDA Q2 2022 Pro Forma $ 172) Demand (68) • Demand conditions vs. expectations: LATAM • Net price benefit remains greater than wage and energy inflation • Clariant synergies and reduced administrative costs Q2 2023 SEQUENTIAL SALES BY REGION Q 2 2 0 2 3 v s . Q 1 2 0 2 3 -8% +6% -1% Flat 14 Total Avient -2.6% 2023 G U IDA N CE $128 $525 $0.56 $2.40 2023 GUIDANCE 16 $800 $3,280 Sales Adjusted EBITDA Adjusted EPS (in millions) (in millions) 17 • Focused on working capital management, restructuring actions to streamline operations • IT investment to further integrate acquired businesses and capture operational efficiencies • Preserve Free Cash Flow to maintain net leverage CASH FLOW / LEVERAGE ($ 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 18 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.

Lowered energy requirements versus painting and the reduction of VOCs also made this masterbatch a more environmentally sustainable solution.

Lowered energy requirements versus painting and the reduction of VOCs also made this masterbatch a more environmentally sustainable solution.

Lowered energy requirements versus painting and the reduction of VOCs also made this masterbatch a more environmentally sustainable solution.

Lowered energy requirements versus painting and the reduction of VOCs also made this masterbatch a more environmentally sustainable solution.

Lowered energy requirements versus painting and the reduction of VOCs also made this masterbatch a more environmentally sustainable solution.

https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-bio-colorants

In 2020, we updated our applications and revenue to better represent how we enable our customers’ sustainability goals, as well reflect the sustainable technologies of recently acquired Clariant Masterbatch business. In 2020, we updated our applications and revenue to better represent how we enable our customers’ sustainability goals, as well reflect the sustainable technologies of recently acquired Clariant Masterbatch business. In 2020, we further evaluated our applications and revenue from our sustainable solutions, since the publishing of our last report and the acquisition of Clariant Masterbatch.

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https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/remafin-concentrates-polyolefins