Microsoft PowerPoint - AVNT Fermium Conference - May 2023 AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) M A Y 4 , 2 0 2 3 H O S T E D B Y : D I S C L A I M E R Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. 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 e n 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 M U LT I P L E E X PA N S I O N 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 e n t (2 0 1 1 ) A vi e n t (2 0 1 8 ) A vi e n t (2 0 2 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.

PE4125 B1 T/F HDPE BLACK CORE(TM) DB5181 YELLOW C LO TEMP FR PP FR 8-6 LMS-1000

S A F E T Y E Q U I P M E N T M A N U FAC T U R E R H E A R I N G P R O T E C T I O N H E A D S E T • High performing acoustic solution • Lightweight material • Good surface aspect • Lost cost solution • Met acoustic test and chemical resistance requirements

DB1574A BLACK T MM205AG356 AQUA GREEN #356 PP FR 8-6 LMS-1000

X PP-H-05G Black JA6A/BLACK/LG9000 PP FR 8-6 LMS-1000

UV Black Umber 3 PP-H-30T BLACK PP FR 8-6 LMS-1000

PP-H-20T-60053L DB3838 MATTE BLACK PP FR 8-6 LMS-1000

BLACK HF PE PA 6 30 H PP FR 8-6 LMS-1000

DC BLACK PE T-AURORA PINK PP FR 8-6 LMS-1000

BLACK UV BLUE ABS FR 276C T PP FR 8-6 LMS-1000