Patterson said, “I am pleased we achieved double- digit EPS growth, which remains our ongoing objective. As the year progresses, I believe we are doing an outstanding job of managing what we can control, improving profitability and delivering record earnings as a result. Investor Relations Contact: Eric R.

Microsoft PowerPoint - AVNT Mar 2022 Presentation AVIENT CORPORATION I N V E S T O R M E E T I N G S (NYSE: AVNT) M A R C H 2 0 2 2 DISCLAIMER 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. D is t. ) K W R P P G F U L R P M A V Y F M C H U N H X L S C L E C L E M N C E A S H Source: Peer data per Bloomberg market data as of February 15, 2022. OUR VALUATION VERSUS PEERS Avient Specialty Formulators Other Chemical/Specialty Companies 5.4 8.5 10.1 10.0 15.7 15.0 14.2 12.7 10.2 25.0 19.7 17.7 13.2 12.3 10.0 9.9 8.9 8.5 8.3 6.6 A vi en t (2 01 1) A vi en t (2 01 6) A vi en t (2 02 1) A vi en t (T o da y) R P M K W R P P G A V Y F U L A L B E C L H X L A S H F M C B N R E M N U N V R C E S C L H U N Historic Multiple SUMMARY: WHY INVEST IN AVIENT?

COLLABO R A T IO N INNOVATION E X C EL LE NCE CORE VALUES INTEG R IT Y HONESTY R E SP EC T PERSONAL VALUES Historic Transformation PolyOne was established in 2000 through the consolidation of two historic companies in the materials industry. I look forward to communicating our progress as we move forward on this important journey! Lin, and William R.

A circular economy aims to design out waste and pollution, keep products and materials in use, and regenerate natural systems. Avient’s product stewardship team monitors the status of various chemistries and works with our R&D teams to drive the innovation pipeline with these alternative solutions.

Chairman of Magna, commented, "While growing Magna, I had a goal to revolutionize the industry and promote sustainable options – our proven technology accomplishes that.  With Avient, I have found a leader aligned with our sustainability values to take us to the next level and truly globalize the business.

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 AY 4 , 2 0 2 3 H O S T E D B Y : DISCLAIMER 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 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. Senior management believes the measures described above are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2 0 2 4 2024 ANNUAL REPORT Innovator of Materials Solutions AVIENT.COM Our purpose at Avient Corporation (NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. As we embark on 2025, I do so with optimism and energy for our company and the stakeholders we serve. Committees: 1, 2 A V IE N T C O R P O R A T IO N A N N U A L R E P O R T 2 0 2 4 2024 ANNUAL REPORT Innovator of Materials Solutions AVIENT.COM

X TR1-40GF/000 NATURAL X TR1-20GF/000 NATURAL 293CPFXAB EPIC PANTONE(R) 293 C SIM

476CPFXATH EPIC ATH PANTONE(R) 476 C SIM X ET-6349-001-2 Natural X ET-6349-001-5 Natural

X LFT TR2-40LGF/000 NATURAL NA X LFT TR2-40LGF/000 HF NATURAL NA 102CPFX EPIC PANTONE(R) 102 C (SIM) HO