Avient will provide additional details on its 2022 fourth quarter and full year performance and 2023 outlook during its webcast scheduled for 8:00 a.m. Webcast Details Avient will host a webcast on Wednesday, February 15, 2023 at 8:00 a.m. See Attachment 3 for a definition and summary of special items.

You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. These investments also consider our global footprint, and we are positioned very well and strategically from a regional perspective. 9 Growth Drivers 2020E Revenue Long-Term Growth Rate Sustainable Solutions $ 550 8–12% Healthcare 520 8–10% Composites / 5G 200 10% Growth in Emerging Regions 650 5% Other (GDP growth) 1,730 2–3% Pro Forma Avient $ 3,650 6.5% (1) Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) (2) 2020 is estimated and Pro forma to include full year of the Clariant Masterbatch business SUSTAINABLE SOLUTIONS Avient has a highly technical and broad portfolio of material solutions that help our customers—and our planet—be more sustainable. PEER COMPARISONS 16 2 3 2 3 3 3 6 3 4 4 4 4 5 5 6 6 7 8 9 23 nt nt ( xc l.

Injection molding parameters and troubleshooting recommendations for Gravi-Tech™ Injection molding parameters and troubleshooting recommendations for Gravi-Tech™ (Chinese language version)   Injection molding parameters, startup and shutdown, mold design and troubleshooting recommendations for Stat-Tech™ Static Dissipative and Conductive Formulations

plans to present additional details about composite innovation as one of several high-growth focus areas that underpin the company's expectation of delivering double digit EPS growth in 2018 and beyond. You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the

plans to present details about technology innovation as it pertains to several high-growth focus areas that underpin the company's expectation of delivering double digit EPS growth in 2018 and beyond.  You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the

~ Atul Khanzode, Chief Technology and Innovation Officer, DPR Construction as quoted in Construction Digital magazine, October 2024 “ ” The good news: we’ve developed advanced composite panels for walls, ceilings, floors, and more, designed specifically for these pressures. Multi-family new construction starts are down roughly 30% YOY, while single-family starts are down over 3% in the same period. 2,100 1,800 1,500 1,200 900 600 300 0 Th ou sa nd s o f U ni ts Sep-19 New Residential Construction (Seasonally Adjusted Annual Rate) Sep-20 Sep-21 Sep-22 Source: U.S. Traditional material prices have been volatile post- pandemic, rising from 8 to 77%.

Our goal is to deliver cumulative annual revenue growth from our Sustainable Solutions portfolio of 8-12% by 2030. Potential financial impact with 8 or 12% YoY growth = 2021 portfolio $ amount * (8% or 12% + 1)^number of years of investment Minimum: $960 million * (8%+1)^9 = $1,831,088,238 Maximum: $960 million * (12%+1)^9 = $2,540,140,142 Cost to realize opportunity 83,000,000 Strategy to realize opportunity and explanation of cost calculation Our Research and Development teams are continually tasked with the development of new products and services, while continuing to adhere to standards defined by programs such as our Sustainability Solutions, where possible. The 8 ways in which we enable our customers sustainability goals support our efforts to lower carbon footprint.

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Key performance indicators and goals are set for each business 8. Yes, as part of the ISO 9001 documentation. 8. Business is PolyOne Quality Survey Standard Response 2015 12 09 Source: Corporate Quality Page: 8 of 14 awarded to vendors on the basis of their performance. 3.

No:8 , 34538 Esenyurt, Türkiye Avient Corporation Design and Manufacture of Colorants and Additives for Plastics No. 8 Third Chin Bee Road, Jurong Industrial Estate Singapore 618684 Avient Corporation Design & Manufacture of Color, Additive Concentrate & Specialty Kalol Works, Shed No.18-22, GIDC Estate Kalol Gujarat 389330 India Page 2 of 5 ul. Water Street North Baltimore OH 45872 United States NEU Specialty Engineered Materials, LLC Compound, Supply, and Prototyping Services of Thermoplastics 15 Corporate Drive North Haven CT 06473 United States Avient Corporation Design and Manufacture of Colorants and Additives for Plastics 80 North West Street Norwalk OH 44857 United States Page 3 of 5 Avient Corporation Manufacture of Masterbatches, Additives, ECCOH, and Compounds for Pigmenting Thermoplastic Pol. Unit 3 Dodworth Business Park, Dodworth Barnsley South Yorkshire S75 3SP United Kingdom Page 5 of 5