The concentrates can be tailored to achieve the desired level of jetness while also taking into account other considerations such as lot-to-lot consistency, cost, and formulation transfer to different regions and technologies.

The concentrates can be tailored to achieve the desired level of jetness while also taking into account other considerations such as lot-to-lot consistency, cost, and formulation transfer to different regions and technologies.

The concentrates can be tailored to achieve the desired level of jetness while also taking into account other considerations such as lot-to-lot consistency, cost, and formulation transfer to different regions and technologies.

The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures1.

According to the World Health Organization, children under 5 are the most vulnerable group affected by malaria, accounting for 67% (274,000) of all malaria deaths worldwide in 2019.

The non-GAAP financial measures include: Adjusted Earnings Per Share, Free Cash Flow, Net Debt/Adjusted EBITDA, Adjusted EBITDA and Adjusted EBITDA Margin. Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share, Net Debt/Adjusted EBITDA and Free Cash Flow to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. Q 1 2 0 2 3 -8% +6% -1% Flat 10 US & Canada Latin America EMEA Asia Total Avient -2.6% 2023 G U IDA N CE $128 $525 Q3 FY $0.56 $2.40 Q3 FY 2023 GUIDANCE 12 $800 $3,280 Q3 FY Sales Adjusted EBITDA Adjusted EPS (in millions) (in millions) 13 • Focused on working capital management, restructuring actions to streamline operations • IT investment to further integrate acquired businesses and capture operational efficiencies • Preserve Free Cash Flow to maintain net leverage CASH FLOW / LEVERAGE ($ 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.

Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include: adjusted EPS, adjusted operating income, free cash flow and adjusted EBITDA. Our free cash flow supports shareholder value creation through investing in R&D for organic growth, completing bolt-on acquisitions, and returning cash to shareholders via our dividend program and opportunistic share repurchases. 25 1.

Market Size and Drivers In 2020, the global rPET market was valued at $8.56 billion with Asia Pacific as the largest regional market, accounting for over 45% revenue share. PET Types Clear PET—Clear PET accounted for over 76% of the revenue share in 2020 and is expected to continue as the market leader. PET End Uses Fiber—Fiber accounted for over 44% of the global revenue share and is used for clothing, athletic jerseys and accessories, mattresses, cushions, car seating and insulation products.