Avient reflects 2022 estimated revenue of $5,100M and estimated CAPEX of $90M (excludes IT system upgrade of $25M and synergy capture CAPEX of $20M) Avient Specialty Other Free Cash Flow Conversion (1) 2022E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $635M and estimated CAPEX of $90M (excludes IT system upgrade of $25M and synergy capture CAPEX of $20M) Source: Peer data per Bloomberg market data as of February 15, 2022 86 89 85 80 76 76 89 85 79 78 76 76 76 70 69 63 8 LB Source: Peer data per Bloomberg market data as of February 15, 2022 Total Enterprise Value / 2022E EBITDAWith the Clariant Color business acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets. We expect this expansion to continue as we execute our strategy, increase margins and consistently grow earnings in excess of the market. 32 Avient reflects 2022 estimated EBITDA of $635M Past Avient valuations reflect forward 12 months EBITDA at December 31 of the respective years.

These valuations reflect assumptions about financial markets and interest rates. This acquisition reflects our strategy to expand our specialty business and our international presence. ColorMatrix has been reflected in our 2012 Consolidated Statement of Income.

Rather, it’s reflective of consistent, strategic investments in our portfolio…and people. Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA Avient reflects 2021 Adjusted EBITDA of $580M and estimated CAPEX of $80M (excludes one-time synergy capture CAPEX of $20M) High Free Cash Flow Conversion Avient Specialty Other Specialty / Chemical Companies Avient Corporation 131 16% 15%+ 16% 16% 16% 14% 14% 14% 34% 26% 22% 21% 16% 15% Avient reflects 2021 Adjusted EBITDA of $580M and guided revenue of $4,750M. We expect this expansion to continue as we execute our strategy, increase margins and consistently grow earnings in excess of the market. 6.5 9.0 11.2 17.7 16.7 15.5 15.3 14.5 12.2 25.7 25.5 13.5 12.2 10.7 9.8 8.6 8.5 6.9 6.2 01 1) 01 6) 02 1) Total Enterprise Value / 2021E EBITDA Avient 2011 and 2016 valuations reflect trailing 12 months EBITDA at December 31 of the respective years.

For cash-settled performance units granted in 2020, awards reflect actual performance. In the case of involuntary termination following a change of control, all of these awards reflect their full value 5) Performance shares granted in 2014 reflect a prorated amount in cases of disability or death.

In certain cases throughout this presentation, we have presented GAAP and non-GAAP financial measures adjusted to reflect full- year 2012 Pro forma results, including Spartech and Glasforms and excluding discontinued operations Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y Net Income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 SunBelt equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - Special items, after tax (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 Tax adjustments (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations.

For cash-settled performance units granted in 2019, awards reflect actual performance. 5) Performance shares granted in 2014 reflect a prorated amount in cases of disability or death. In the case of involuntary termination following a change of control, this award reflects its full value.

For cash-settled performance units granted in 2022, awards reflect actual performance. In the case of involuntary termination following a change of control, all of these RSU awards reflect their full value. SARs granted in 2024 and 2023 reflect a prorated amount of the award in cases of retirement, disability or death.

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AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.

AVIENT MAKES NO WARRANTIES, EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, either with respect to the information or products reflected by the information.