Backed by decades of TPE expertise, our team can help you choose the best polymer for your product or customize a material to meet your specific challenges.

Strong past performance demonstrates that our strategy and execution are working • Megatrends align with our strengths • Innovation and services provide differentiation and competitive advantage • Strong and proven management team driving growth and performance • Addressable market exceeds $40 billion The New PolyOne: A Specialty Growth Company 2015 Target: $2.50 Adjusted EPS Page 15 Schedule I Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S.

Overview of how Avient serves wire & cable customers, highlighting both power and data cables technologies

Our research, development, and engineering teams are continuously evaluating new materials and processes that allow us to offer improved products and solutions to meet your requirements.

Calculate using Let Down Percentage: Cost/lb of Concentrate x (Let Down Percentage/100) = Coloring Cost Calculate using Let Down Ratio: Cost/lb of Concentrate – Cost/lb of Resin Let Down Ratio +1 = Coloring Cost TWO WAYS TO CALCULATE COLORING COSTS OMNICOLOR™ TROUBLESHOOTING TWO WAYS TO CALCULATE COLORING COSTS SYMPTOM CAUSE REMEDY Color Variation Shot-to-Shot Poor Omnicolor preblending Pigment has insufficient thermal stability More thorough blending Ensure correct machine temperature control Screw Slip Premature melting of Omnicolor Excessive addition rate Reduce heat in feed zone Check addition rate and reduce if necessary Overall Good Distributive Mixing With Streaks or Dots of Another Color Poor pigment dispersion in concentrate Return concentrate for replacement Black Streaks or Splotches Degraded polymer in barrel Clean screw and barrel Poor Distributive Mixing (Streaking) Insufficient plastification See processing instructions Loss of Color Pigment has insufficient thermal stability Change to more heat stable colorant Ensure correct machine temperature control OMNICOLOR™ PROCESSING TEMPERATURES RECOMMENDED MAXIMUM PROCESSING TEMPERATURES FOR OMNICOLOR IN SELECTED POLYMERS IN °C UK COLOR NO.

Special items for the fourth quarter of 2014, the largest of which was the mark-to-market pension adjustment, resulted in a net after-tax charge of $47.5 million, or $0.52 per share (see Attachment 3). With global markets for our products and services totaling approximately $40 billion in size and trends that favor our light-weight, high performance materials, we see tremendous growth opportunities to pursue and capture regardless of economic conditions." See Attachment 3 for a definition of special items.

• Changements dans la haute direction qui n’ont pas encore été annoncés publiquement • Attribution ou annulation de contrats importants avec des clients ou des fournisseurs • Produits en attente ou nouveaux produits, services ou procédés Existence et faits nouveaux concernant des procédures réglementaires, des enquêtes gouvernementales et des litiges importants concernant l’Entreprise 17 Table des matières Contributions/activités politiques et contributions de bienfaisance Avient vous encourage à rester informé des questions importantes, à voter et à vous impliquer dans le processus politique.

Quelques exemples comprennent : • les bénéfices, estimations ou autres informations financières avant leur diffusion publique ; • les changements significatifs dans les niveaux des opérations ; • les discussions sur les transactions majeures, y compris les acquisitions, co-entreprises ou cessions ; • les informations sur notre situation financière, les perspectives ou les plans, les programmes marketing et commerciaux, et les informations de R&D ; • les changements de dirigeants supérieurs, qui n’ont pas encore été annoncés publiquement ; • les attributions ou annulations de contrats importants avec des clients ou fournisseurs ; • les produits à venir, ou nouveaux produits, services ou processus ; l’existence de et les développements concernant toute procédure réglementaire, enquête du gouvernement et litige important impliquant la société. 17 Table des matières Contributions/activités politiques et contributions de caritatives Avient vous encourage à vous tenir au courant des problèmes importants, à voter et à participer au processus politique.

CODE DE CONDUITE | 18 TABLE DES MATIÈRES INTRODUCTION NOTRE CODE DE CONDUITE RESPECT POUR TOUS HONNÊTETÉ AU TRAVAIL INTÉGRITÉ DANS NOTRE ACTIVITÉ RESPONSABILITÉ SOCIALE D’ENTREPRISE RESSOURCES Contributions/activités politiques et contributions caritatives Avient vous encourage à vous tenir au courant des problèmes importants, à voter et à participer au processus politique.

Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 SUSTAINABILITY TARGETS 20 2021 AVIENT INVESTOR DAY 21 • Investor Day to be held December 9, 2021 in New York, NY • Company will provide updates on its key growth drivers with a deep focus on sustainable solutions Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites / 5G 10% Growth in Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% • Senior leadership team to also present on Clariant MB integration, M&A opportunities and capital allocation priorities PEER COMPARISONS 22 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from.