PolyOne Corporation Page 3 Use of Non-GAAP Measures  This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.  PolyOne’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources.  A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.polyone.com.

Department of the Treasury’s Office of Foreign Assets Control, Customs and Excise Act 91 of 1964; the Promotion to Administrative Justice Act 3 of 2000; the Promotion to Access to Information Act 2 of 2000 and the International Trade Administration Act 71 of 2002 ("Trade Control Laws"). Seller shall have the right to terminate an order confirmation with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer. To the extent Seller and Buyer have executed a separate confidentiality agreement, then the terms of such confidentiality agreement shall control.

A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.polyone.com. Non-GAAP financial measures have limitations as analytical tools and should not be considered in isolation from, or solely as alternatives to, financial measures prepared in accordance with GAAP. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures calculated and presented in accordance with GAAP.

Avient Code of Ethics Applicable to Senior Financial Officers Code of Ethics applicable to senior financial officers This statement has been published in accordance with section 54(1) of the Modern Slavery Act 2015 and constitutes the second modern slavery and human trafficking statement of ColorMatrix Europe Limited (“ColorMatrix”) and covers the 2022 financial year.

Forward – Looking Statements Page 2 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. PolyOne’s chief operating decision makers use these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources. A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.polyone.com.

Forward – Looking Statements Page 2 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. PolyOne’s chief operating decision makers use these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources. A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.polyone.com.

Explore What's Possible Explore What's Possible Explore What's Possible

Explore What's Possible Explore What's Possible Explore What's Possible

Explore What's Possible Explore What's Possible Explore What's Possible

Forward – Looking Statements Page 2 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. PolyOne’s chief operating decision makers use these financial measures to monitor and evaluate the ongoing performance of the Company and each business segment and to allocate resources. A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.polyone.com.