To access PolyOne’s news library online, please visit www.avient.com/news a) Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuation allowance adjustments. Tax adjustments

To access PolyOne’s news library online, please visit www.avient.com/news. Tax adjustments(2) 2) Tax adjustments include the net tax expense/benefit from one-time income tax items and deferred income tax valuations allowance adjustments.

To access PolyOne's news library online, please visit www.avient.com/news. 2) Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuation allowance adjustments. Effective Tax Rate

Yes ‘ No Í Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Louis, Missouri Carolina 6.Hackensack, Tennessee 4.Gaggenau, Germany 5.Sullivan, Missouri 6.Elyria, Ohio New Jersey (4) 7.Pasadena, Texas 5.Istanbul, Turkey 6.Massillon, Ohio 7.La Porte, Texas 7.La Mirada, California (4) 8.Seabrook, Texas 6.Barbastro, Spain 7.Norwalk, Ohio 8.Brampton, Ontario, 8.Manitowoc, 9.Orangeville, 7.Melle, Germany 8.North Baltimore, Ohio Canada Wisconsin (4) Ontario, Canada 8 & 9.Suzhou, China (2) 9.Lehigh, Pennsylvania (8 Distribution 9.McMinnville, 10.St. As a result, pre-tax income by location and the components of income tax expense by taxing jurisdiction are not directly related.

Pasadena, Texas Seabrook, Texas (1) 5. Seabrook, Texas 4. Richland Hills, Texas 27.

Pasadena, Texas 8.   Seabrook, Texas   9. La Porte, Texas 10.

Avient’s Publication of Polish 2023 Tax Strategy Avient’s Publication of Polish 2023 Tax Strategy Avient’s Publication on Polish 2022 Tax Strategy

Avient’s Publication of Polish 2023 Tax Strategy Avient’s Publication of Polish 2023 Tax Strategy Avient’s Publication on Polish 2022 Tax Strategy

Yes ‘ No Í Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Louis, Missouri Jersey 5.La Mirada, Tennessee 4.Gaggenau, Germany 5.Sullivan, Missouri 5.Statesville, North California 7.Pasadena, Texas 5.Istanbul, Turkey 6.Massillon, Ohio Carolina 6.Manitowoc, 8.Seabrook, Texas 6.Barbastro, Spain 7.Norwalk, Ohio 6.Elyria, Ohio Wisconsin 9.Orangeville, Ontario, 7.Melle, Germany 8.North Baltimore, 7.La Porte, Texas 7.McMinnville, Canada 8 & 9. As a result, pre-tax income by location and the components of income tax expense by taxing jurisdiction are not directly related.

To access PolyOne's news library online, please visit www.avient.com/news. a) Tax adjustments include the net tax expense (benefit) from one-time income tax items and deferred income tax valuation allowance adjustments. Income tax expense