Avient offers expertise in formulations, engineering services, and global technical and manufacturing support to address your unique challenges.

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. Platform operating income mix percentage 2005* 2008* 2010* 2013 2014 2015 YTD Global Color, Additives and Inks $ 4.3 $ 28.1 $ 37.7 $104.0 $124.9 $ 107.9 Global Specialty Engineered Materials 0.4 17.6 49.7 57.2 72.4 63.2 Designed Structures and Solutions - - - 33.4 45.1 12.0 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $194.6 $242.4 $ 183.1 Performance Products and Solutions 75.7 31.3 54.0 56.0 63.1 43.9 Distribution 19.5 28.1 42.0 63.3 68.2 52.4 Joint ventures 91.9 28.6 18.9 - - — Corporate and eliminations (51.5) (425.1) (27.7) (82.4) (218.6) (59.8) Operating income (loss) GAAP $140.3 $(291.4) $174.6 $231.5 $155.1 $ 219.6 Less: Corporate operating expense 51.5 425.1 27.7 82.4 218.6 59.8 Operating income excluding Corporate $191.8 $133.7 $202.3 $313.9 $373.7 $ 279.4 Specialty platform operating mix percentage 2% 34% 43% 62% 65% 66% Adjusted EPS is calculated as follows: Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y Net income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - Special items, after tax(1) (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 101.0 Tax adjustments(2) (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 (10.5) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 2 Adjusted EPS 2011 Q3 2012 Q3 2013 Q3 2014 Q3 2015 Q3 Net income attributable to PolyOne common shareholders $ 16.0 $ 19.4 $ 23.2 $ 32.3 $ 44.5 Special items, after tax(1) 3.1 5.3 10.5 13.2 12.6 Tax adjustments(2) (0.3) 0.1 1.8 (0.1) (9.6) Adjusted net income $ 18.8 $ 24.8 $ 35.5 $ 45.4 $ 47.5 Diluted shares 94.3 90.2 98.1 93.1 88.4 Adjusted EPS $ 0.20 $ 0.27 $ 0.36 $ 0.49 $ 0.54 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations Appendix Q3 2015 Financial Highlights At a Glance�Global Color, Additives and Inks At a Glance�Global Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Commitment to Operational Excellence Application Examples Outdoor Applications Slide Number 27 Authentication Technology 2015 Range Rover Evoque Interior Slide Number 30 Metal Replacement Solutions High-Barrier Packaging Containers Aerospace Applications Baird Non GAAP Rec.pdf Baird - November 10, 2015

IL TERMINE "GARANZIA" INCLUDE UNA QUALSIASI OBBLIGAZIONE, INDIPENDENTEMENTE DALLA DESCRIZIONE, DI PAGARE, SODDISFARE, FORNIRE FONDI PER IL PAGAMENTO O IL SODDISFACIMENTO DI, MANLEVARE E TENERE INDENNE DALLE CONSEGUENZE DI MANCATO PAGAMENTO O SODDISFACIMENTO DI, O ALTRIMENTI ESSERE RESPONSABILE DI QUALSIASI INDEBITAMENTO O OBBLIGAZIONI FINANZIARIE DI QUALSIASI ALTRA PERSONA; 3.7 L'ACQUISTO, LA LOCAZIONE, LA PERMUTA E L'ACQUISIZIONE DI QUALUNQUE BENE MOBILE O IMMOBILE O DI ALTRO TIPO E QUALSIASI DIRITTO O PRIVILEGIO SU O RELATIVO ALLO STESSO; 3.8 LA VENDITA, LA LOCAZIONE, LA PERMUTA E LA DISPOSIZIONE DI QUALUNQUE BENE MOBILE E IMMOBILE E/O DELL'AZIENDA DELLA SOCIETA', IN TUTTO O IN PARTE, A FRONTE DEL CORRISPETTIVO CHE L'AMMINISTRATORE UNICO O IL CONSIGLIO DI AMMINISTRAZIONE (A SECONDA DEI CASI) RITENGANO ADEGUATO, INCLUSE QUOTE, OBBLIGAZIONI E ALTRI TITOLI, VERSATI IN TUTTO O IN PARTE, DI QUALSIASI SOGGETTO CHE ABBIA O MENO UN OGGETTO SOCIALE (IN TUTTO O IN PARTE) SIMILE A QUELLO DELLA SOCIETA'; LA DETENZIONE DELLE AZIONI, OBBLIGAZIONI O ALTRI TITOLI COSI' ACQUISITI; L'APPORTARE MIGLIORIE, LA GESTIONE, LA VENDITA, LA PERMUTA, LA LOCAZIONE, IL PRESTITO, LA COSTITUZIONE DI IPOTECHE, LA DISPOSIZIONE DI, LA CONCESSIONE DI OPZIONI SU, LA MESSA A REDDITO E LA GESTIONE IN TUTTO O IN PARTE DEI BENI E DEI DIRITTI DELLA SOCIETA'; 3.9 IL COMPIMENTO DI TUTTE O PARTE DELLE ATTIVITA' ILLUSTRATE IN UNO QUALSIASI DEI PARAGRAFI DEL PRESENTE ARTICOLO 3 (A) IN QUALSIASI PARTE DEL MONDO; (B) IN QUALITA' DI MANDANTE, MANDATARIO, APPALTATORE, TRUSTEE O ALTRO; (C) CON O TRAMITE TRUSTEES, MANDATARI, SUBAPPALTATORI O ALTRI; E (D) SOLO O CON ALTRI SOGGETTI; 3.10 IL COMPIMENTO DI TUTTE LE ATTIVITA' (INCLUSA LA STIPULA E L'ESECUZIONE DI CONTRATTI, ATTI, ACCORDI E NEGOZIAZIONI CON O IN FAVORE DI QUALSIASI PERSONA) CHE NELL'OPINIONE DELL'AMMINISTRATORE UNICO O DEL CONSIGLIO DI AMMINISTRAZIONE (A SECONDA DEI CASI) SIANO CONNESSE O FAVOREVOLI AL PERSEGUIMENTO DI TUTTE O DI ALCUNE (DELLE ATTIVITA' INCLUSE) NELL'OGGETTO DELLA SOCIETA', O PER L'ESERCIZIO DI TUTTI O ALCUNI DEI SUOI POTERI; Visura ordinaria societa' di capitale • di 3 10 RESTANDO COMUNQUE INTESO CHE LA SOCIETA' NON STIPULERA' ALCUNA TRANSAZIONE CHE COSTITUISCA UNA ATTIVITA' REGOLAMENTATA DEL SETTORE FINANZIARIO O RICHIEDA LICENZA COMMERCIALE AI SENSI DELLA LEGGE LUSSEMBURGHESE SENZA LA DOVUTA AUTORIZZAZIONE PREVISTA DALLA LEGGE LUSSEMBURGHESE.

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.  Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • Our ability to identify and evaluate acquisition targets and consummate acquisitions; • The ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies, retain relationships with customers of acquired companies, and achieve the expected results of such acquisitions, including whether such businesses will be accretive to our earnings; • 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; • Our ability to achieve new business gains; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business; • Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; • Fluctuations in raw material prices, quality and supply and in energy prices and supply; 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; • An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; • Information systems failures and cyber attacks; • Our ability to continue to pay regular cash dividends and the amounts and timing of any future dividends; and • Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.  The above list of factors is not exhaustive.  We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. PolyOne �Investor Presentation Slide Number 2 Slide Number 3 Slide Number 4 Slide Number 5 Slide Number 6 Slide Number 7 Slide Number 8 Slide Number 9 Slide Number 10 Slide Number 11 Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 Slide Number 18 Slide Number 19 Slide Number 20 Slide Number 21 Slide Number 22 Slide Number 23 Slide Number 24 Slide Number 25 Slide Number 26 Slide Number 27 Slide Number 28 Slide Number 29 Slide Number 30 Slide Number 31 Slide Number 32 Investor Presentation - March 2018 r4.pdf Investor Presentation - March 2018

We are committed to doing our part in what must be a multi-faceted, global approach throughout supply chains and all stakeholders to successfully address the issue. Adopting new technologies in our global network of facilities We have completed over 100 waste minimization projects globally, driving site-specific and innovative solutions.

The number of shares of common shares outstanding as of February 6, 2023 was 90,966,406. Progress toward this goal is measured at the business unit and regional levels, communicated globally, and linked to a number of recognition mechanisms. Our internet address is www.avient.com.

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. POL IR Presentation - February 2016 2.26.2016 ��PolyOne Investor Presentation�March 2016�� Forward-Looking Statements Use of Non-GAAP Measures PolyOne Commodity to Specialty Transformation 25 Consecutive Quarters of EPS Growth PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Color and Engineered Materials at the�Heart of Specialty Transformation Proof of Performance & 2020 Goals Slide Number 10 Slide Number 11 Slide Number 12 Slide Number 13 Innovation Drives Earnings Growth Investing to Drive Growth Design and Service as a Differentiator Customer First Through World-Class Service Debt Maturities & Pension Funding Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return Why Invest In PolyOne? Appendix Recent Acquisitions 2015 Full Year Financial Highlights At a Glance�Color, Additives and Inks At a Glance�Specialty Engineered Materials At a Glance�Designed Structures and Solutions At a Glance�Performance Products and Solutions At a Glance�Distribution Plastics: Key to Future Sustainable Development Application Examples Outdoor Applications Slide Number 32 Authentication Technology Metal Replacement Solutions Range Rover Evoque Interior Slide Number 36 High-Barrier Packaging Containers Aerospace Applications Investor Presentation - March 1, 2016 r36 Investor Presentation - March 1, 2016

CABLE MANUFACTURER A E R I A L D R O P C A B L E J A C K E T • Pass clamp test requested by end user • Strong UV resistance & mechanical performance • Excellent processing • Good fire performance to pass CPR class Cca / Dca • Low shrinkage (< 1%) • Exceeded material fire performance requirements and met all other performance criteria • Simplified supply chain with local manufacture in Europe • Enabled customer to run material at optimum processing conditions by providing support with machine set up.

LEADING ANTENNA MANUFACTURER A N T E N N A C O M P O N E N T S • Extremely tight performance tolerance • Dielectric performance of 3 – 7Dk • Ability to utilize existing injection molding machinery • High mold flow index (MFI) • On demand material delivery • Provided technical support throughout the development of multiple, highly technical materials • Formulated high quality materials that aligned with stringent specification, at a cost effective price • Provided order flexibility, allowing customer to order on demand • Collaborated across the supply chain, enabling customer to take a premium solution to market that can reduce maintenance and construction costs for end users Custom PREPERM™ Low Loss Dielectric Formulations KEY REQUIREMENTS WHY AVIENT?

Versaflex - CPAP tubing film CPAP TUBING C O R R U G A T E D T U B I N G F I L M • Replacement for polyolefins • Good spring-back • Bondable cuffs • Clear & clean look • Minimize humidity and condensation within the tube • No noticeable odor • FDA, ISO 10993 & USP VI compatible • Provided TPE solution to meet market expectations for improved user comfort & aesthetics • Reduced tube noise and improved drape compliance with new material solution versus polyolefins • Offered solution with improved thermal properties to combat humidity Versaflex™ CL2250 KEY REQUIREMENTS WHY AVIENT?