A reconciliation of each historical non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.avient.com. Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. To provide comparable financial results, the Company references “pro forma” financial metrics, which include the business results of Clariant Color for periods prior to the Acquisition Date.

What we do: Materials Science Advancing Development of Treated Bed Nets for Malaria Control

What we do: Materials Science Advancing Development of Treated Bed Nets for Malaria Control

CLEVELAND – PolyOne today announced that Franklin Electric selected Geon™ Fiberloc™ glass-reinforced vinyl composite for the control head of its new Inline 400 booster pump. The Franklin Electric Inline 400 booster pump, features Geon Fiberloc™ glass-reinforced vinyl composite in the control head. Geon Fiberloc™ glass-reinforced vinyl composite houses the electronic “smart” system for the Franklin Electric Inline 400 booster pump control head.

What is Classed as Recycled Content Infographic_Select GLOSSARY OF TERMS POST- CONSUMER RECYCLE (PCR) TRADITIONAL BLACK MASTERBATCH AVIENT ONCOLOR™ IR SORTABLE BLACK MASTER- BATCH RETAIL/ CONSUMER RECLAIMER LANDFILL MATERIAL MANUFACTURER RECYCLE VALUE CHAIN BLACK PACKAGING Material Manufacturer - Raw material suppliers or processors who produce materials ready for manufacturing Masterbatch - A solid or liquid additive used for coloring plastics Retail/Consumer - End user Reclaimer - Local recycling center for consumer goods Post-Consumer Recycle (PCR) - Materials derived from polymers reclaimed at the end of their lifecycle that have been through waste treatment Landfill - Infrastructure with highly engineered containment systems that act as a safe and permanent repository for waste material that cannot be reused or recycled

Each of such adjustments has not yet occurred, are out of Avient’s control and/or cannot be reasonably predicted. Sharpening focus on cost control & driving productivity in SG&A and in our plants 4. EPS – Q2 2025 $0.79 2025 financial guidance unchanged

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 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include estimated 2022 Dyneema business and Composites Platform pro forma EBITDA. Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted.

Page 3 • This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. In certain cases throughout this presentation, we have presented GAAP and non-GAAP financial measures Use of Non GAAP Measures presentation, we have presented GAAP and non-GAAP financial measures adjusted to reflect full-year 2011 Pro forma results, including ColorMatrix A reconciliation of each non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.polyone.com.

Some PET container designs and shapes include varying thicknesses. Some UV additives can affect the clarity of clear and transparent PET containers.

Housing for Crane Control What's the Difference? What's the Difference?