CORE(TM) DB5752 BLACK 72A NON PHTHALATE CORE(TM) DB4998B RED 4135 NON-PHTHALATE PP FR 8-6 LMS-1000

CORE(TM) DB3906B NEUTRAL NON CD/711 59820-F CORE(TM) DB3906B WHITE NON CD/711 59591-F46 PP FR 8-6 LMS-1000

In alcuni casi, alcuni soggetti non possono considerarsi funzionari o non possono essere trattati come tali dai loro governi, ma rientrano comunque nella definizione di funzionario pubblico riportata sopra. Avient non consente la creazione o l’utilizzo di conti “fuori bilancio” o “fondi neri”. Le voci fuorvianti, incomplete o false nei libri e nei registri di Avient non sono mai accettabili.

Non tolleriamo ritorsioni. Non l’ho riconosciuta e non indossava il badge Avient. Non imbarcateli in aereo e non lasciateli in luoghi non sicuri.

Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include: Adjusted Earnings Per Share, Adjusted EBITDA and adjusted EBITDA margins. The presentation of these measures may be different from non-GAAP financial measures used by other companies.

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. 4 Non-GAAP Financial Measures The Company uses both GAAP (generally accepted accounting principles) and non-GAAP financial measures. The non-GAAP financial measures include: adjusted EPS and free cash flow. Below is a reconciliation of these non-GAAP financial measures to their most directly comparable financial measures calculated and presented in accordance with GAAP.

PowerPoint Presentation M E D I C A L C O N N E C T O R S • Ongoing production with no change to regular set up • Excellent processing and demolding performance • Color stability during processing • Excellent chemical and impact resistance • Enabled efficient ongoing production rates without changing any processing parameters • Safeguarded color stability and transparency during processing for optimal aesthetics • Ensured regulatory requirements for biocompatible ISO109931 and FDA were met • Provided a solution effective across a range of high-temperature polymers, including PEEK, PPSU, PES, PSU, PEI, LCP, and PPS Colorant Chromatics Evoluscend non- PFAS* high-temperature polymer mold release additive KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION PRODUCTIVITY + REGULATORY LEARN MORE E L E C T R I C A L C O M P O N E N T O E M (*) A non-PFAS additive manufactured without non-intentionally added (NIA) PFAS or PTFE. (*) manufactured without intentionally added PFAS and without PTFE (1) refers to sulfone products only https://www.avient.com/products/polymer-additives/processing-enhancement-additives/colorant-chromatics-evoluscend-non-pfas-high-temperature-mold-release-additive Slide Number 1

Non-compliance with the Code of Ethics Verified non-compliance by any of the applicable officers with this code of ethics will result in an evaluation of the non-compliance situation by the Audit Committee. Code of Ethics Applicable to Senior Financial Officers Reporting of violations of the Code of Ethics Non-compliance with the Code of Ethics

With such a reputation, the pressure was on to bring Owner/ Inventor David Skedeleski’s idea for a non-abrasive grip tape for the deck of surfboards to life. Ultimately, Avient customized a GLS™ wet grip TPE that outmaneuvered traditional materials—delivering dynamic hydrophobic performance, translucent aesthetics, non-abrasive comfort grip, and excellent UV protection. Beyond grip, the non-abrasive material doesn’t peel up thanks to a durable bond with the adhesive backing, giving customers a reliable solution that eliminates the problem of a slippery surface.

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.