Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). Avient Specialty Other Free Cash Flow Conversion (1) 2022E (%) Being asset light helps us to generate strong free cash flow that is in line with other specialty formulators. Our free cash flow supports shareholder value creation through investing in R&D for organic growth, completing bolt-on acquisitions, and returning cash to shareholders via our dividend program and opportunistic share repurchases. 44 1.

Eastern Time on July 30, 2021. 3 *Pro Forma The company acquired the Clariant Masterbatch business (“CMB”) on July 1, 2020 (the “Acquisition Date”). To participate in the audio-only portion of the call, dial 1-844-835- 7433 (domestic) or 1-914-495-8589 (international) and provide conference ID number 2587092. To access, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 2587092.

Webcast Details The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media- server.com/mmc/p/yrq7mgm9.To participate in the audio-only portion of the call, dial 1-844-835- 7433 (domestic) or 1-914-495-8589 (international) and provide conference ID number 7899765. To access, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 7899765. Three Months Ended September 30, 2021 2020 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results $ 61.1 $ 19.9 $ 81.0 $ 5.3 $ 50.0 $ 55.3 Income tax expense - GAAP (8.5) — (8.5) (2.7) — (2.7) Income tax impact of special items (Attachment 3) — (4.6) (4.6) — (12.7) (12.7) Tax adjustments (Attachment 3) — (3.6) (3.6) — 3.0 3.0 Income tax (expense) benefit $ (8.5) $ (8.2) $ (16.7) $ (2.7) $ (9.7) $ (12.4) Effective Tax Rate(1) 14.1 % 20.8 % 51.9 % 22.7 % (1) Rates may not recalculate from figures presented herein due to rounding 14 Nine Months Ended September 30, 2021 2020 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results $ 253.5 $ 36.5 $ 290.0 $ 81.6 $ 62.0 $ 143.6 Income tax expense - GAAP (51.8) — (51.8) (22.5) — (22.5) Income tax impact of special items (Attachment 3) — (8.9) (8.9) — (15.4) (15.4) Tax adjustments (Attachment 3) — (1.6) (1.6) — 4.9 4.9 Income tax (expense) benefit $ (51.8) $ (10.5) $ (62.3) $ (22.5) $ (10.5) $ (33.0) Effective Tax Rate(1) 20.5 % 21.5 % 27.6 % 23.0 % (1) Rates may not recalculate from figures presented herein due to rounding The following pro forma adjustments are referenced by management to provide comparable business performance by incorporating the Clariant Masterbatch business in periods prior to the acquisition date (July 1, 2020).

PolyOne Corporation Page 1 PolyOne Investor Presentation Goldman Sachs Basic Materials Conference May 2015 PolyOne Corporation Page 2 Forward-Looking Statements  In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. 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 Adjusted EPS 2010 Q1 2011 Q1 2012 Q1 2013 Q1 2014 Q1 2015 Q1 Net income attributable to PolyOne common shareholders $ 20.1 $ 106.0 $ 15.3 $ 11.2 $ 29.4 $ 30.2 Joint venture equity earnings, after tax (0.5) (3.7) - - - - Special items, after tax(1) (0.3) (79.8) 6.1 17.2 14.1 5.5 Tax adjustments(2) (3.5) (1.5) 0.1 0.5 (1.6) 5.9 Adjusted net income $ 15.8 $ 21.0 $ 21.5 $ 28.9 $ 41.9 $ 41.6 Diluted shares 95.3 96.4 90.7 92.8 95.7 90.1 Adjusted EPS $ 0.17 $ 0.22 $ 0.24 $ 0.31 $ 0.44 $ 0.46 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations 1) Special items are a non-GAAP financial measure.

Globale Richtlinie von Avient zur Bekämpfung von Bestechung und Korruption (Anti-Bribery and Anti-Corruption, ABAC) Veröffentlicht: 1. Juli 2020 Inhaltsangabe Unsere globale Richtlinie zur Bekämpfung von Bestechung und Korruption 1 Bedeutung der Compliance 1 Unsere Verantwortung 1 Was ist Bestechung? Das Anbieten geldwerter Zuwendungen sollte nicht mit angemessenen, begrenzten und gesetzlich zulässigen Ausgaben für Geschenke, Unterhaltung und andere legitime Aktivitäten verwechselt werden, die direkt mit der Geschäftstätigkeit von Avient zusammenhängen. 1 1 Richten Sie sich bei der Entscheidung, ob geplante Ausgaben zulässig sind, nach dem Abschnitt Geschenke und Bewirtung des Verhaltenskodex von Avient und nach unserer Richtlinie zu Geschenken und Unterhaltung.

Politica globale Avient anti-concussione e anti-corruzione Politica globale Avient anti-concussione e anti-corruzione La nostra Politica globale su anti-corruzione e anti-concussione 1 Importanza della conformità 1 La nostra responsabilità 1 Cos’è una tangente? Anche 1 Consultate la sezione Regali e Ospitalità del Codice di condotta di Avient e la nostra Politica sui doni e intrattenimento per stabilire se la spesa proposta sia consentita. Tale divieto si applica sia se l’offerta o il pagamento sono effettuati direttamente sia tramite un’altra persona • Inserire voci fuorvianti, incomplete o false nei libri e nei registri di Avient • Ignorare i segnali di allerta quando si tratta con terze parti Nord America Sede globale Avon Lake, Stati Uniti 33587 Walker Road Avon Lake, Ohio, Stati Uniti 44012 Numero verde: +1 866 765 9663 Telefono: +1 440 930 1000 Fax: +1 440 930 3064 Asia Pacifico Sede regionale Shanghai, Cina 2F, Block C 200 Jinsu Road Pudong, 201206 Shanghai, Cina Telefono: +86 (0) 21 6028 4888 Fax: +86 (0) 21 6028 4999 America del Sud Sede regionale San Paolo, Brasile Av.

Globalna polityka przeciwdziałania łapownictwu i korupcji Avient Data wydania: 1 lipca 2020 r. Nasza globalna polityka przeciwdziałania łapownictwu i korupcji 1 Znaczenie postępowania zgodnego z przepisami 1 Nasza odpowiedzialność 1 Co to jest łapówka? Ofert korzyści majątkowych nie należy mylić z uzasadnionymi, mieszczącymi się w rozsądnych granicach i zgodnymi z prawem wydatkami na upominki, rozrywki biznesowe i inne legalne działania bezpośrednio związane z prowadzaniem działalności przez Avient. 1 1 Aby określić, czy proponowany wydatek jest dozwolony, należy zapoznać się z treścią części Upominki oraz przejawy gościnności w Kodeksie postępowania Avient oraz z Polityką dotyczącą upominków i rozrywki.

PolyOne Corporation Page 1 PolyOne Investor Presentation Jefferies 2015 Industrials Conference August 2015 PolyOne Corporation Page 2 Forward-Looking Statements  In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. 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 Adjusted EPS 2010 Q2 2011 Q2 2012 Q2 2013 Q2 2014 Q2 2015 Q2 Net income attributable to PolyOne common shareholders $ 44.7 $ 23.1 $ 18.4 $ 38.6 $ 30.9 $ 66.8 Joint venture equity earnings, after tax (4.5) - - - - - Special items, after tax(1) (9.0) 0.9 8.0 (2.2) 22.6 8.0 Tax adjustments(2) (13.1) 0.4 0.9 0.2 (5.2) (23.9) Adjusted net income $ 18.1 $ 24.4 $ 27.3 $ 36.6 $ 48.3 $ 50.9 Diluted shares 96.3 95.5 90.7 99.1 94.3 89.8 Adjusted EPS $ 0.19 $ 0.26 $ 0.30 $ 0.37 $ 0.51 $ 0.57 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations 1) Special items are a non-GAAP financial measure.

PolyOne - Bilingual T&Cs - Hungary - 1 - PAI-376902v1 TERMS AND CONDITIONS OF SALE The Terms and Conditions herein apply to the sale of PolyOne products 1. All late payments shall bear an annual interest of one month (1) EURIBOR plus 8% accrued on a daily basis, notwithstanding any damages. Minden késedelmes fizetés az EURIBOR egy (1) hónapra vetített éves kamatának plusz 8 százaléknak a felszámítását vonja maga után napi elszámolással, a károk nélkül.

KEY CHARACTERISTICS Formulated with bio-based resin and/or 10–50% filler from renewable plant sources, Maxxam BIO formulations: • Reduce product carbon footprint • Achieve equivalent performance to standard polyolefin formulations • Provide good stiffness, durability, impact resistance and UV stability • Deliver good surface finish and are easy to color • Enable customized performance characteristics depending on application need • Offer food contact compliance MARKETS AND APPLICATIONS Maxxam BIO formulations are suitable for use across many industries and applications where traditional polyolefin materials are used, including: • Transportation Interior Applications - Decorative profiles, trunk side liners, pillars, T-cup • Industrial - Structural parts, furniture • Consumer - Household goods, personal care items, packaging, office supplies, food contact applications • Electrical and Electronic – Housings, buttons, junction boxes SUSTAINABILITY BENEFITS • Formulated with bio-based resin and/or 10–50% natural filler • Utilize natural filler from renewable plant sources including olive seed based powder and cellulose fiber • Offer a lower product carbon footprint compared to traditional petroleum-based feedstock • Can be recycled at end of life PRODUCT BULLETIN CHARACTERISTICS UNITS Maxxam BIO MX5200-5036 Natural FD Maxxam BIO MX5200-5030 Natural FD Maxxam BIO MX5200-5030 Natural FD X1 Maxxam BIO MX5200-5001 Maxxam BIO MX5200-5033 Maxxam BIO MX5200-5034 Maxxam BIO MX5200-5035 Filler/Reinforcement Unfilled Unfilled Unfilled 30% Glass Fiber 10% 20% 30% Density (ISO 1183) g/cm 0.90 0.90 0.90 1.12 0.96 1.03 1.12 Tensile Modulus (ISO 527-1) @ 23°C MPa 1500 1000 1000 6400 1350 1650 2100 Tensile Stress (ISO 527-2) @ 23°C MPa 27.0 20.0 20.0 75.0 13.0 14.0 15.0 Tensile Strain at Break % 5 50 50 3.0 50 37 18 Charpy Notched (ISO 179) kJ/m 5 20 25 10 12 10 10 CHARACTERISTICS UNITS Maxxam BIO MX5200-5023 RS HS HI Natural 70 Maxxam BIO MX5200-5025 RS HS Natural 70 Maxxam BIO MX5200-5004 RS HS Maxxam BIO MX5200-5003 RS Maxxam BIO MX5200-5009 RS HS Natural 70 Maxxam BIO MX5200-5024 RS HS Maxxam BIO MX5200-5022 RS HS Filler/Reinforcement 15% Olive Seed Based 25% Olive Seed Based 30% Olive Seed 10% 35% Olive Seed 5% 15% Olive Seed 17% Glass Fiber/ 20% Olive Seed 20% Glass/ 10% Olive Seed 20% Density (ISO 1183) g/ccm 1.00 1.15 1.10 1.07 1.09 1.25 1.10 Tensile Modulus (ISO 527-1) @ 23°C MPa 1750 2000 2700 2500 3800 3500 4100 Tensile Stress at Break MPa 21.0 20.0 30.0 20.0 40.0 35.0 42.0 Tensile Strain at Break % 24 5 3 5 3 4 2 Notched Izod (ISO 180) kJ/m 15 7 3 2 5 15 7 MAXXAM BIO POLYOLEFINS – BIO-BASED RESIN – TECHNICAL PERFORMANCE MAXXAM BIO POLYOLEFINS – OLIVE SEED BASED FILLER – TECHNICAL PERFORMANCE CHARACTERISTICS UNITS Maxxam BIO MX5200-5029 NF HI UV Black X1 Maxxam BIO MX5200-5032 NFS UV Natural Maxxam BIO  MX5200-5020 NF/NFS UV Natural X1​ Maxxam BIO MX5200-5016 NF Natural Filler/Reinforcement 10% Cellulose Fiber 20% Cellulose Fiber 30% Cellulose Fiber 40% Cellulose Fiber Density (ISO 1183) g/ccm 0.95 1.00 1.02 1.07 Tensile Modulus ISO 527-1) @ 23°C MPa 1550 1750 2640 3600 Tensile Stress at Break (ISO 527-2) @ 23°C MPa 33 30 48 55 Tensile Strain at Break (ISO 527-2) @ 23°C % 8 12 9 4 Charpy Notched Impact Strength (ISO 179/1eA) kJ/m2 5 6 5 5 Charpy Unnotched Impact Strength (ISO 179/1eU) kJ/m2 33 49 38 30 MAXXAM BIO POLYOLEFINS – CELLULOSE FIBER FILLER – TECHNICAL PERFORMANCE Copyright © 2023, Avient Corporation.