F X ) -10% -11% -3% -12% 14 Avient ex. Avient Specialty Other Specialty / 2023E(%) 36 79 87 83 81 76 73 90 79 77 76 73 69 60 22 MULTIPLE EXPANSION Avient Specialty Other Specialty / Note: Avient reflects 2023 adjusted EBITDA guidance of $530M and closing share price of $38.51. Avient 2011 and 2018 valuations reflect trailing 12 months EBITDA at December 31 of the respective years. 37 EV / 2023E EBITDA Historic Multiple 6.5 8.3 9.9 14.6 13.7 13.0 11.9 8.8 18.7 17.4 11.8 10.0 9.7 9.1 8.0 7.9 01 1) 01 8) 02 3) Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Note: If the account is in more than one name, see the instructions for line 1. Association, club, religious, charitable, educational, or other tax- exempt organization The organization 12. Note: The grantor also must provide a Form W-9 to trustee of trust.

Odkarby, Finland 12. Lockport, New York 12. ITEM 12.

Note: SDS access methods vary by region - please read the instructions for your region carefully. Material or Material Number) has either 12 or 14 characters. Note: SDS access methods vary by region - please read the instructions for your region carefully.

Note: SDS access methods vary by region - please read the instructions for your region carefully. Material or Material Number) has either 12 or 14 characters. Note: SDS access methods vary by region - please read the instructions for your region carefully.

Note: SDS access methods vary by region - please read the instructions for your region carefully. Material or Material Number) has either 12 or 14 characters. Note: SDS access methods vary by region - please read the instructions for your region carefully.

Note: SDS access methods vary by region - please read the instructions for your region carefully. Material or Material Number) has either 12 or 14 characters. Note: SDS access methods vary by region - please read the instructions for your region carefully.

Note: SDS access methods vary by region - please read the instructions for your region carefully. Material or Material Number) has either 12 or 14 characters. Note: SDS access methods vary by region - please read the instructions for your region carefully.

Note: SDS access methods vary by region - please read the instructions for your region carefully. Material or Material Number) has either 12 or 14 characters. Note: SDS access methods vary by region - please read the instructions for your region carefully.