AEROSPACE INTERIORS OEM S E A T S P A C E R & A R M R E S T • Weight reduction to increase airliner fuel economy • Meet FAA safety requirements for FST compliance and 16G kinetic survivability • Agility to delivery solution within 8-month compressed product development timeline • Achieved 40% weight reduction generating $16,000 per year reduction in fuel costs • Optimized component designs for long fiber material and conducted FEA validation • Performed prototype molding and testing for load and impact specifications to expedite development Complēt™ Long Carbon Fiber PES Composite KEY REQUIREMENTS WHY AVIENT?

Englewood, Colorado 4. Montrose, Colorado 5. In 2021, 161 leaders completed the experience.

Englewood, Colorado 3. Montrose, Colorado 4. Through Avient Academy, associates can participate in classroom, online, and webinar based training sessions.

Englewood, Colorado 3. Montrose, Colorado 4. Through Avient Academy, associates can participate in classroom, online, and webinar based training sessions.

Dean's Advisory Board for the College of Science and Engineering news library online, please visit www.avient.com/news.

Complēt™ REC Long Fiber Reinforced Composites Incorporating Recycled Resin The Complēt™ REC portfolio consists of long fiber reinforced composites incorporating post-consumer recycled (PCR) nylon 6 resin, post-industrial recycled (PIR) nylon 66 resin, and PIR thermoplastic polyurethane (TPU) resin. COMPLĒT REC PIR NYLON 66 COMPARISON Complēt REC PIR PA66 materials are available in black or natural. COMPLĒT REC PCR NYLON 6 COMPARISON Complēt REC PCR PA6 materials are available in black.

Complēt™ PKE Formulations Complēt™ PKE formulations are long glass fiber reinforced polyketone solutions for structural applications using metal today. Helping to improve sustainability over the end- product lifecycle, Complēt PKE formulations offer a reduced carbon footprint as a result of the base resin. ■ Notched 23C ■ Unnotched 23C ■ Unnotched -30C■ Notched -30C 0 5 10 15 20 25 Complēt LGF30-PKE NAT Complēt LGF40-PKE NAT Complēt LGF50-PKE NAT Izod Impact Notched ASTM D256/Unnotched ASTM D4812 4.1 4.7 5.4 18.9 19.5 19.919.1 19.8 20.1 4.0 4.6 5.0 (1) Data based on single lot of lab generated samples.

Annual Report | 2024 2 STOCK EXCHANGE LISTING Avient's Common Stock is listed on the New York Stock Exchange, Symbol: AVNT SHAREHOLDER INQUIRIES If you have any questions concerning your account as a shareholder, name or address changes, inquiries regarding stock certificates, or if you need tax information regarding your account, please contact our transfer agent: Equiniti Trust Company, LLC 1110 Centre Pointe Curve, Suite 101 Mendota Heights, MN 55120-4100 Phone: 1-855-598-2615 or 1-651-450-4064 www.shareowneronline.com Additional information about Avient, including current and historic copies of Annual Reports on Form 10-K and other reports filed with the Securities and Exchange Commission, is available online at www.avient.com or free of charge from: Investor Relations Avient Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 1-440-930-1000 ANNUAL MEETING The annual meeting of Avient will be held virtually via live webcast at 9:00 a.m. Shareholders will be able to attend and participate in the annual meeting online, vote shares electronically, and submit questions during the annual meeting by visiting www.virtualshareholdermeeting.com/AVNT2025. Further, as a result of Avient's strategic shift to an innovator of materials solutions, it has completed several acquisitions and divestitures which have resulted in a significant amount of intangible asset amortization.

We partnered with EcoVadis and IntegrityNext in order to complete these assessments. In 2022, Avient also completed a Climate Change Scenario analysis. To date we have completed over 2,000 product carbon footprint calculations.

Consequently, you should not consider any such list to be a complete set of all potential risks or uncertainties. Online access will begin at 8:45 a.m. Voting electronically online during the Annual Meeting will replace any previous votes.