news library online, please visit www.polyone.com/news. Income taxes SEC Filings

news library online, please visit www.polyone.com/news. Tax adjustments include the net tax expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. SEC Filings

news library online, please visit www.polyone.com/news. Tax adjustments include the net tax benefit/(expense) from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. SEC Filings

news library online, please visit www.polyone.com/news. Tax adjustments include the net tax expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. SEC Filings

news library online, please visit www.avient.com/news. Tax adjustments(2) SEC Filings

news library online, please visit www.avient.com/news. Tax adjustments(2) SEC Filings

news library online, please visit www.avient.com/news-events. Tax adjustments(2) SEC Filings

To apply for an SSN, get Form SS-5, Application for a Social Security Card, from your local SSA office or get this form online at www.SSA.gov. An identity thief may use your SSN to get a job or may file a tax return using your SSN to receive a refund. You must provide your TIN whether or not you are required to file a tax return.

Richland Hills, Texas 4. Pasadena, Texas 5. Seabrook, Texas 6.

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