73029 70% WHITE PP BLACK F PP FR 8-6 LMS-1000

XBERGAMID A70 G15 BLACK TM-X 70 BLACK SAN MB PP FR 8-6 LMS-1000

GEON WJAX236 BLACK 2999 GREY 70 PP UV PP FR 8-6 LMS-1000

Geon(TM) MB2821 Black Thixo 70 BLKPWDMB (0.20% Monarch 700 Black) 450A PP FR 8-6 LMS-1000

EVER D2394A CLEAR BASE- 70 19140SLNS MSM-YM BLACK PP FR 8-6 LMS-1000

S-1044B BLACK Geon(TM) MB2737 Black 70 FR PP FR 8-6 LMS-1000

Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) F E B R U A R Y 2 0 2 4 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. AS HIS H KHANDP UR P R E S I D E N T & C E O 7 8 PORTFOLIO TRANSFORMATION 8 7% 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 2023 % o f A dj us te d E B IT D A Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications SUSTAINABILITY AS A GROWTH DRIVER 9 LONG-TERM REVENUE GROWTH DRIVERS Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other 60%+ Key Growth Drivers Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other 0–2% Avient 6% END MARKET OBSERVATIONS ( % O F C O M PA N Y S A L E S ) ENERGY 5% DEFENSE 7% TELECOMMUNICATIONS 4% HEALTHCARE 7% 10 TRANSPORTATION 10% INDUSTRIAL 16% BUILDING & CONSTRUCTION 9% CONSUMER 19% PACKAGING 23% 11 REGIONAL OBSERVATIONS ( % O F C O M PA N Y S A L E S ) 11 US & Canada Latin America EMEA Asia 41% 36% 18% 5% Q 4 2 0 2 3 R E S U L T S Q4 2023 PERFORMANCE VS. GUIDANCE ( T O TA L C O M PA N Y ) 13 $710 $719 Guidance Actual $112 $114 Guidance Actual Sales Adjusted EBITDA (in millions) $0.47 $0.52 Guidance Actual Adjusted EPS (in millions) 13.5% 15.9% 2022 2023 Results vs.

T RED ACRYLIC 2 MM481 BLACK 2040 TYPE PP FR 8-6 LMS-1000

Geon(TM) DB5171 BLACK FR NON-PHTHALATE T-LIGHTEST SMOKE PP FR 8-6 LMS-1000