Webcast Details Avient will provide additional details on its 2024 third quarter results and 2024 full-year outlook during its webcast scheduled for 8:00 a.m. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; disruptions or inefficiencies in our supply chain, logistics, or operations; changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; fluctuations in raw material prices, quality and supply, and in energy prices and supply; demand for our products and services; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; and other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts and any recessionary conditions. 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. 5 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

Depending on the wall thickness of the elastomer and the substrate, the production rate can be very high. Figure 3: Rheological behavior of Over-molding TPEs The viscosity is in the lower end of the spectrum as shown in the figure 3. in high shear rate regimes. For PC, ABS and PC/ABS, the adhesion values are plotted in Figure 8.

For the third quarter we expect adjusted EPS of $0.70, which represents 8% growth over the prior year quarter largely driven by higher margins.” Webcast Details Avient will provide additional details on its 2025 second quarter and its 2025 full year outlook during its webcast scheduled for 8:00 a.m. 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. 5 Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

8:00 a.m. 8:00 a.m. Effect of exchange rate changes on cash

Winona, Minnesota 8. Pamplona, Spain 8. Workforce Health & Safety (1) Total recordable incident rate (TRIR) and (2) fatality rate for (a) direct employees and (b) contract employees RT-CH-320a.1 1.

8:00 a.m. 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 Effect of exchange rate changes on cash

Online access will begin at 8:45 a.m. To obtain comparability based on company size, the Consultant’s analysis either referenced a specific sample of comparably-sized companies or calibrated the pay of a broad sample of companies against company size. Khandpur whose eligibility was pro-rated to reflect his partial year of service.

To ensure color accuracy, please contact a Avient representative for a sample. USING THIS CHART This color selection chart is a tool to assist in selecting the proper colorants for specific applications. • C.I. numbers refer to the Color Index, the industry’s standard guide. • In each pair of color chips, the left sample represents the masstone or full shade, which is the color hue in clear media. • The chip on the right shows the relative tint strength using 10 parts TiO2.

Properties shown are based on a representative sample and may vary based on actual material selection.

Samples are recommended.