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.

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.

F X ) -10% -11% -3% -12% 14 US & Canada Latin America EMEA Asia Avient ex. Avient Specialty Formulators Other Specialty / Chemical Companies 2023E(%) 36 79 87 83 81 76 73 90 79 77 76 73 69 60 22 A vi en t K W R P P G F U L A V Y R P M F M C C E H X L A S H E C L H U N E M N S C L MULTIPLE EXPANSION Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of April 28, 2023 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 A vi en t (2 01 1) A vi en t (2 01 8) A vi en t (2 02 3) K W R P P G R P M A V Y F U L E C L H X L F M C A S H S C L C E E M N H U N 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.

F X ) -10% -11% -3% -12% 10 US & Canada Latin America EMEA Asia Avient ex. Chamber of Commerce; BEAD refers to Broadband Equity, Access, and Deployment Program 12 • Fiscal Year 2024 U.S. Avient Specialty Formulators Other Specialty / Chemical Companies 2023E(%) 32 79 87 83 81 76 73 90 79 77 76 73 69 60 22 A vi en t K W R P P G F U L A V Y R P M F M C C E H X L A S H E C L H U N E M N S C L MULTIPLE EXPANSION Avient Specialty Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of April 28, 2023 Note: Avient reflects 2023 adjusted EBITDA guidance of $530M and closing share price of $38.51.

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