Factors that could cause our actual results to differ materially from those implied by forward-looking statements are described in detail in Part l of the Form 10-K. THIS PAGE IS NOT PART OF AVIENT’S FORM 10-K FILING THIS PAGE IS NOT PART OF POLYONE’S FORM 10-K FILINGTHIS PAGE IS NOT PART OF POLYONE’S FORM 10-K FILINGTHIS PAGE IS NOT PART OF AVIENT’S FORM 10-K FILING Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. Management excludes intangible asset amortization from adjusted EPS as it believes excluding acquired intangible asset amortization is a useful measure of current period earnings per share.

How to Perfect Thermal Management in LED Lighting Applications Learn how polymers can improve heat management, reduce weight, and expand design freedom A shift from metal to Therma-Tech™ formulation drives improved product line for LED component manufacturer

How to Perfect Thermal Management in LED Lighting Applications Learn how polymers can improve heat management, reduce weight, and expand design freedom A shift from metal to Therma-Tech™ formulation drives improved product line for LED component manufacturer

Find out how you can strengthen your design game with this principle. We've interviewed Chris Lefteri, Marshall Hamachi, and Owen Foster to glean their insights on materials-centric design, plus rounded up some success stories from the Avient Design team to illustrate how this concept plays out in the real world. 

from May 10 SEC Filings

They are based on management’s expectations that involve a number of business risks and uncertainties, any of which could cause actual results to differ materially from those expressed in or implied by the forward-looking statements. 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. Christopher Murphy Vice President, Research and Development Chief Innovation Officer PolyOne Corporation Page 22 2 lbs Plastic = 3 lbs aluminum or 8 lbs steel or 27 lbs glass 33% less material by weight than aluminum 75% less material by weight than steel 93% less material by weight than glass Requires 91% less energy to recycle a pound of plastic versus a pound of paper Source: SPI: Sustainability and the Plastics Industry Plastics: Key to Future Sustainable Development PolyOne Corporation Page 23 Decreasing Dependence on Fossil Fuels Globalizing and Localizing • Aging population • Longer life expectancy • Healthy living • Aging in place • Environmental consciousness • Alternative energy • Resource efficiency • Biotechnology • Global leader/local expert with customized solutions • Global OEMs seeking one standard of service everywhere • Efficiency focus • Reduced size/weight • Mass transit • Alternative materials • Electric vehicles Protecting the Environment Improving Health and Wellness Alignment with Megatrends PolyOne Corporation Page 24 Innovation Drives Earnings Growth $20 $53 2006 2013 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* *Percentage of Specialty Platform revenue from products introduced in last five years 14.3% 30.7% 2006 2013 Specialty Platform Gross Margin % 19.5% 43.0% 2006 2013 PolyOne Corporation Page 25 Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 4 11 5 10 6 9 3 4 2 15 9 1 10 4 Breakthrough Platform Derivative A Rich Pipeline of Opportunity Number of Projects 25 14 19 17 18 93 Addressable Market ($ millions) TBD TBD $800 $450 $450 $1,700 PolyOne Corporation Page 26 Recent Innovations Aligned with Megatrends in Key End Markets and 2015 Goals Robert M.

Thickness from 0.010" tape to 0.375" multi-ply laminates 10 Continuous fiber reinforced thermoplastic composite tape is slit to custom widths from 2" to 24"

Avient Specialty Inks is excited to exhibit its sustainable portfolio of reduced energy use and eco-conscious inks with a new video showcasing how the team is working to lower ink curing temperatures and expand PVC-free portfolios to help customers meet their sustainability goals. From eco-conscious inks to a refreshed look for one of our most iconic, classic brands, the Avient Specialty Inks team is pleased to continue to offer innovative and inspired solutions.” The Avient Specialty Inks team is exhibiting in booth 1127 at the Impressions Expo in Long Beach, California, from January 20-22, 2023.

Learn how Avient's black IR sortable packaging improves recyclability. New Black Colorants from Avient turn former waste into recyclable packaging The effects can last as long as 10 hours and are available in three glow colors: yellow, aqua and violet

How can you make the most of color, from design through processing? Creative and effective use of polymer colorants can have an effect all along the value chain, from brand recognition to competitive differentiation and a greater emotional connection with the product. To get the best results and the maximum benefits from a color strategy, you need the right colorant for the job.