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ONZE GEDRAGSCODE UITGEGEVEN: OKTOBER 2024 INHOUDSOPGAVE Inleiding: Een Bericht van de CEO 1 Richtlijnen voor ethisch gedrag 3 Persoonlijke waarden 3 Uw verantwoordelijkheden 4 Bijkomende verantwoordelijkheden voor supervisors en managers van Avient 4 Vragen oplossen en het melden van niet in overeenstemming zijnde situaties 5 Ethiekhotline 5 Geen vergelding 6 Toepassing van de Gedragscode 6 Overtredingen van de code 6 Diversiteit en inclusie 8 Discriminatie of pesterijen 8 Relaties op de werkplek 9 Drugmisbruik 10 Fysieke beveiliging en geweld op de werkplek 10 Eerlijkheid op het werk Nauwkeurige informatie, gegevens en dossiers 12 Boekhoudkundige integriteit 12 Bedrijfscommunicatie 14 Beveiliging en gebruik van middelen 14 Eigendomsrechtelijke en vertrouwelijke informatie, ideeën en intellectueel eigendom 15 Privacy, persoonsgegevens en gagevensbescherming 16 Gebruik van internet en e-mail 16 Sociale media en sociale netwerken 17 Computerbeveiliging, softwarelicenties en copyrights 17 Handel met voorkennis 18 Politieke bijdragen/activiteiten en liefdadigheidsbijdragen 19 Overheidsonderzoeken en vragen 19 Integriteit in ons zakendoen Eerlijk Handelen 21 Omkoping en smeergeld 21 Vertegenwoordigers en consulenten 22 Concurrentie 22 Geschenken en gastvrijheid 23 Belangenverstrengeling 24 Zelf Handelen 25 Internationale handel 25 Witwassen 25 Sociale verantwoordelijkheid van het bedrijf Duurzaamheid 27 Veiligheid, gezondheid en milieu 28 Product-en dienstveiligheid 29 Respecteren van mensenrechten 29 Een gedeelde toewijding 29 Hulpbronnen en contactinformatie Ons beleid 30 Interne contacten 30 Ethiekhotline 30 Een Bericht van de CEO Beste Avient-team, Onze bedrijfsbeslissingen hebben verstrekkende implicaties in de complexe en onderling verbonden wereld van vandaag. GEDRAGSCODE | 12 RESPECT VOOR EERLIJKHEID OP INTEGRITEIT IN ONS SOCIALE VERANTWOORDELIJKHEID Sommige voorbeelden van onze zakelijke dossiers omvatten: • nieuwe productontwikkeling • testresultaten • laboratoriumverslagen • onderzoeksgegevens • financiële verslagen • kostendeclaraties • facturen • tijdregistraties • persoonlijke dossiers • bedrijfsplannen • brieven, nieuwsbrieven, memo’s en e-mails, geadresseerd aan medewerkers • informatie geplaatst op The Loop Eigendomsrechtelijke en vertrouwelijke informatie omvat: • bedrijfsplannen en strategieën omtrent de richting van het bedrijf • onderzoeks- en technische gegevens • productrecepten en procestechnologie • productstewardship • handelsgeheimen, technologie en ‘know-how’ • informatie over onze concurrentiepositie • niet-gepubliceerde financiële informatie en projecties • informatie over productkosten • informatie over voorgestelde contracten en transacties • informatie over klanten, leveranciers, prijsbepaling en andere commerciële informatie • computersoftware en -systemen die voor ons bedrijf ontwikkeld werden • alle andere informatie die nuttig zou zijn voor een concurrent GEDRAGSCODE | 13 RESPECT VOOR EERLIJKHEID OP INTEGRITEIT IN ONS SOCIALE VERANTWOORDELIJKHEID V: Mijn manager is op vakantie, en in haar afwezigheid werd mij gevraagd om een contract te ondertekenen namens het bedrijf. Details worden behandeld in het Wereldwijde beleid inzake privacy en gegevensbescherming dat beschikbaar is op The Loop, onder Mensen en afdelingen, Ethiek en Persoonlijke informatie is alle informatie die gebruikt kan worden om iemand te identificeren, zoals: • door de overheid uitgegeven identificatienummers, zoals een burgerservicenummer of een nationaal verzekeringsnummer • salarisinformatie • medische voorgeschiedenis • prestatiedossiers • persoonlijke adressen en telefoonnummers Gebruik van internet en e-mail Avient geeft onze medewerkers toegang tot vele vormen van elektronische media voor zakelijk gebruik.

Scope 1 Scope 2 Greenhouse Gas Emissions Intensity Sustainability Report | 2018 63 Environmental Metrics/Charts 0.0 0.3 0.6 0.9 1.2 h / P ro ct Energy Intensity 60,000 120,000 180,000 240,000 300,000 S co e 1 & 2 C 2e GHG Emissions (MT CO2e) Energy IntensityEnergy Source Breakdown Purchased Electricity Purchased Steam Natural Gas Diesel Fuel 43.85% 14.55% .28% 41.31% 41 Energy Saving Projects Eliminated 4600+ MT of Carbon Dioxide Per Year Emissions Reductions S co e 1 & 2 C 2 / P ro ce 1.00 .80 .60 .40 .20 .43 .37 .37 64 Sustainability Report | 2018 Lean Six Sigma Impact Efficiency and continuous improvement are at the core of our Operational Excellence strategy and also ensure we’re taking responsible care of our planet. Goff, Kim Ann Mink, Robert E. — Richard Fearon, Lead Director, PolyOne Corporation, Board of Directors 2020 2 0 % B Y 2 0 2 0 W E N O N B O A R D Sustainability Report | 2018 81 Environmental Data 82 Sustainability Report | 2018 Environmental Data* Category 2016 2017 2018 Change from 2016 Energy Total Energy (MWh) 756,838 817,877 863,614 14.1% Energy Intensity (MWh/MT Production) 1.26 1.10 1.11 -12.2% Percent Energy—Purchased Electricity (%) 41.31 Percent Energy—Natural Gas (%) 14.55 Percent Energy—Purchased Steam (%) 43.85 Percent Energy—Diesel Fuel (%) 0.28 Emissions Greenhouse Gas Emissions (MT Scope 1 & 2 CO2e) 254,995 275,811 288,436 13.1% Greenhouse Gas Emissions (MT Scope 1 CO2e) 21,211 21,546 23,439 10.5% Greenhouse Gas Emissions (MT Scope 2 CO2e) 233,784 254,265 264,997 13.4% Greenhouse Gas Emissions Intensity (MT Scope 1 & 2 CO2/ MT Produced) 0.43 0.37 0.37 -13.0% Reportable Releases (above permitted limits) 0 0 0 0.0% Waste Total Waste (MT) 18,449 19,037 18,465 0.1% Total Waste Intensity (Kg Waste/MT Production) 9.71 9.49 8.35 -14.1% Percent of Total Waste Recycled/ Beneficially Reused (%) 66.37 61.26 63.75 -3.9% Percent of Total Waste Landfilled (%) 31.52 37.17 34.53 9.5% Water Total Water Withdrawal (M m3) 1,316 1,609 1,505 14.4% Total Water Withdrawal Intensity (m3/MT Production) 2.18 2.15 2.01 -7.8% * Includes updated data as originally estimated in the 2018 Annual Report Sustainability Report | 2018 83 1.

E) bei Ansprüchen nach § 1 Abs. 1 des Produkthaftungsgesetzes; dabei ist die Haftung des Verkäufers für Schadensersatzansprüche unter Gesamtschuldnern gemäß §§ 421 bis 425 BGB ausgeschlossen. 5 4.2 Liability for breach of Essential Duties (Kardinalspflichten) 4.2 Haftung für die Verletzung von Kardinalspflichten If essential duties (Kardinalspflichten) under the relevant contract are breached by Seller due to slight negligence and if, as a consequence, the achievement of the objective of the respective contract is endangered, or in the case of a slightly negligent failure to comply with duties, the very discharge of which is an essential prerequisite for the proper performance of the relevant contract, Seller’s liability shall be limited to foreseeable damage typical for the relevant contract. HAFTUNGSBESCHRÄNKUNG 4.1 Unlimited Liability 4.1 Unbeschränkte Haftung (A) in the event of wilful misconduct or gross negligence, (A) im Falle von Vorsatz oder grober Fahrlässigkeit, (B) within the scope of a guarantee expressly made by Seller in writing, (B) im Rahmen einer vom Verkäufer ausdrücklich und schriftlich abgegebenen Garantie, (C) in the event that a defect is maliciously concealed, (C) für den Fall, dass ein Mangel arglistig verschwiegen wurde, (D) in case of an injury to life, body or health, and (D) im Falle einer Verletzung von Leben, Körper oder Gesundheit und (E) claims under Section 1 para. 1 of the German Product Liability Act; whereby the liability of Seller for compensation claims among jointly-and-severally liable debtors pursuant to Sections 421 to 425 German Civil Code shall be excluded. E) bei Ansprüchen nach § 1 Abs. 1 des Produkthaftungsgesetzes; dabei ist die Haftung des Verkäufers für Schadensersatzansprüche unter Gesamtschuldnern gemäß §§ 421 bis 425 BGB ausgeschlossen. 4.2 Liability for breach of Essential Duties (Kardinalspflichten) 4.2 Haftung für die Verletzung von Kardinalspflichten 4.3 Liability Cap 4.3 Haftungshöchstgrenze 4.4 Scope 4.4 Scope 4.

OUR CODE OF CONDUCT ISSUED OCTOBER 2024 TABLE OF CONTENTS Introduction: A Message from the CEO 1 Guidelines for Ethical Behavior 3 Personal Values 3 Your Responsibilities 4 Additional Responsibilities of Avient Supervisors and Managers 4 Resolving Questions and Reporting Non-Compliance Situations 5 Ethics Hotline 5 Non Retaliation 6 Code of Conduct Application 6 Violations of the Code 6 Diversity and Inclusion 8 Discrimination or Harassment 8 Workplace Relationships 9 Substance Abuse 10 Physical Security and Workplace Violence 10 Accurate Information, Data and Records 12 Accounting Integrity 12 Company Communications 14 Safeguarding and Use of Assets 14 Proprietary and Confidential Information, Ideas and Intellectual Property 15 Privacy, Personal Information and Data Protection 16 Internet and E-mail Use 16 Social Media and Social Networking 17 Computer Security, Software Licensing and Copyrights 17 Insider Information and Trading 18 Political Contributions/Activities and Charitable Contributions 19 Government Investigations and Inquiries 19 Integrity in Our Business Fair Dealing 21 Bribery and Kickbacks 21 Agents and Consultants 22 Competition 22 Gifts and Hospitality 23 Conflicts of Interest 24 Self-Dealing 25 International Trade 25 Money Laundering 25 Corporate Social Responsibility Sustainability 27 Safety, Health and Environment 28 Product and Service Safety 29 Respecting Human Rights 29 A Shared Commitment 29 Resources and Contact Information Our Policies 30 Internal Contacts 30 Ethics Hotline 30 A Message from the CEO Dear Avient Team, Our company decisions have far-reaching implications in today’s complex and interconnected world. Details are covered in the Global Privacy and Data Protection Policy available on The Loop, under People & Personal information is any information that can be used to identify someone, such as: • Government-issued identification numbers, such as Social Security or national insurance numbers • Compensation information • Medical history • Performance records • Personal addresses and phone numbers Internet and E-mail Use Avient provides our associates with access to many forms of electronic media for business use. Employee Name (Please print) Signature Date Work Location Table of Contents A Message from the CEO Our Code of Conduct Guidelines for Ethical Behavior Personal Values Your Responsibilities Additional Responsibilities of Avient Supervisors and Managers Resolving Questions and Reporting Non-Compliance Situations Ethics Hotline Non Retaliation Code of Conduct Application Violations of the Code Respect for All Diversity and Inclusion Discrimination or Harassment Workplace Relationships Substance Abuse Physical Security and Workplace Violence Honesty at Work Accurate Information, Data and Records Accounting Integrity Company Communications Safeguarding and Use of Assets Proprietary and Confidential Information, Ideas and Intellectual Property Privacy, Personal Information and Data Protection Internet and E-mail Use Social Media and Social Networking Computer Security, Software Licensing and Copyrights Insider Information and Trading Political Contributions / Activities and Charitable Contributions Government Investigations and Inquiries Integrity in Our Business Fair Dealing Bribery and Kickbacks Agents and Consultants Competition Gifts and Hospitality Conflicts of Interest Self-Dealing International Trade Money Laundering Corporate Social Responsibility Sustainability Safety, Health and Environment Product and Service Safety Respecting Human Rights A Shared Commitment Resources and Contact Information Our Policies Internal Contacts—Ethics and Compliance Resources Ethics Hotline

Davranış Kurallarımız 2023 İcra Kurulu Başkanı’ndan Mesaj 1 Vizyonumuz ve Stratejimiz 2 Temel ve Kişisel Değerler 2 Davranış Kurallarımız Etik Davranış için Kurallar 4 Kişisel Değerler 4 Sorunların Çözümlenmesi ve Uygunsuz Durumların Rapor Edilmesi 6 Etik Yardım Hattı 6 Misilleme Yapmama 6 Davranış Kurallarının Uygulaması 6 Kuralların İhlalleri 7 Çeşitlilik ve Katılım 9 Ayırımcılık veya Taciz 9 İşyeri İlişkileri 9 Madde Bağımlılığı 10 Fiziksel Güvenlik ve İşyerinde Şiddet 10 Doğru Bilgiler, Veriler ve Kayıtlar 12 Muhasebe Dürüstlüğü 12 Şirket İletişimleri 14 Varlıkların Korunması ve Kullanımı 14 Özel ve Gizli Bilgiler, Fikirler ve Fikri Mülkiyet 14 Gizlilik, Kişisel Bilgiler ve Veri Koruma 15 İnternet ve E-posta Kullanımı 15 Sosyal Medya ve Sosyal Ağ Oluşturma 15 Bilgisayar Güvenliği, Yazılım Lisansı ve Telif Hakları 16 İçeriden Bilgiler ve Bunlara Dayalı Menkul Değer Alım Satımı 16 Siyasi Katkılar/Faaliyetler ve Yardım Amaçlı Katkılar 16 Hükümet Soruşturmaları ve Araştırmaları 17 Dürüst İş Yapmak 19 Rüşvet ve Bahşişler 19 Temsilciler ve Danışmanlar 20 Rekabet 20 Hediyeler ve Ağırlama 20 Çıkar Çatışması 21 Kendi Yararına İşlem 22 Uluslararası Ticaret 22 Kurumsal Sosyal Sorumluluk Sürdürülebilirlik 24 Güvenlik, Sağlık ve Çevre 24 Ürün ve Hizmet Güvenliği 25 İnsan Haklarına Saygı 25 Ortak Bir Taahhüt 25 Kaynaklar ve İletişim Bilgileri 26 1 İcra Kurulu Başkanı’ndan Mesaj Sayın Avient Çalışanları, Büyüyen, küresel bir şirketin bir parçası olarak zorlu durumlar ve karmaşık bir karar verme süreci ile karşı karşıyayız. Yanlış giderleri ve/veya kötü belgelenmiş giderleri göndermeniz durumunda iş akdinin feshi de dâhil olmak üzere uygun disiplin cezasının alınacağını unutmayın. 13 İş kayıtlarımızın bazı örnekleri şunları içermektedir: • Yeni ürün geliştirme • Test sonuçları • Laboratuvar raporları • Araştırma verileri • Finansal Raporlar • Harcama raporları • Faturalar • Zaman kayıtları • Personel kayıtları • İş planları • Çalışanlara gönderilen mektuplar, bülten notları ve e-postalar • Loop’ta yayınlanan bilgiler Özel ve gizli bilgiler şunları içermektedir: • İş planları ve yönetim stratejileri • Araştırma ve teknik veriler • Ürün verileri ve süreç teknolojileri • Ürün yönetimi • Ticari sırlar, teknolojiler ve “know how” • Rekabetçi konumumuz hakkındaki bilgiler • Yayınlanmamış mali bilgiler ve projeksiyonlar • Ürün maliyeti bilgisi • Önerilen sözleşmeler ve işlemler hakkındaki bilgiler • Müşteri, satıcı, fiyatlandırma ve diğer ticari bilgiler • İşletmemiz için geliştirilen bilgisayar yazılımı ve sistemleri • Bir rakip için yararlı olabilecek diğer bilgiler 14 S: Yöneticim tatilde ve onun yokluğunda benden Şirket adına bir sözleşmeye imza atmamı istedi. Kişisel bilgiler, birisini tanımlamak amacıyla kullanılabilecek her türlü bilgidir, örneğin: • Sosyal Güvenlik ya da ulusal sigorta numaraları gibi devlet tarafından verilen kimlik numaraları • Tazminat bilgileri • Tıbbi geçmiş • Performans kayıtları • Kişisel adres ve telefon numaraları İnternet ve E-posta Kullanımı Avient, çalışanlarının iş amacıyla pek çok elektronik iletişim aracına erişmesine imkân sunar.

PolyOne Corporation Page 4 PolyOne Commodity to Specialty Transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2015 2016 and beyond • Steve Newlin appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • Substantial EPS growth from $0.13 to all-time high of $1.96 • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Specialty mix expands to 65% of Operating Income – strongest mix of earnings in history • Deliver consistent double digit annual EPS growth • Maintain >35% vitality index • Pursue strategic acquisitions that expand specialty offerings and geographic breadth • Invest and grow current and next generation talent PolyOne Corporation Page 5 25 Consecutive Quarters of EPS Growth Note: 2009 has not been restated for subsequent changes in accounting principles or discontinued operations -$0.10 $0.00 $0.10 $0.30 $0.50 $0.60 2009 2010 2011 2012 2013 2014 2015 Adjusted Earnings Per Share -2% 0% 10% 2009 2010 2011 2012 2013 2014 2015 Adjusted Consolidated Operating Margin 2.8% 5.2% 5.6% 6.7% 8.3% 6.9% 9.5% PolyOne Corporation Page 6 2015 Revenues: $3.4 Billion End Markets 2015 Revenues: $3.4 Billion PolyOne At A Glance $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Adjusted EPS 66% Building & 10%Electrical & Textiles Distribution 29% PP&S Specialty 51% $1.96 PolyOne Corporation Page 7 Old PolyOne *Operating Income excludes corporate charges and special items 2% 43% 65% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 80%+ Specialty OI $5M $87M $229M Mix Shift Highlights Specialty Transformation Transformation 2020 Platinum Vision Platinum Vision PolyOne Corporation Page 8 Color and Engineered Materials at the Heart of Specialty Transformation OPERATING MARGIN 1.7% 4.6% 5.1% 5.5% 7.2% 8.1% 9.7% 12.2% 14.7% 16.7% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2020 Platinum Vision COLOR, ADDITIVES AND INKS 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 8.6% 9.3% 12.1% 14.7% 20%+ 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2020 Platinum Vision SPECIALTY ENGINEERED MATERIALS PolyOne Corporation Page 9 2006 2015 2020 “Where we were” “Where we are” Platinum Vision 1) Operating Income % Specialty: Color, Additives & Inks 1.7% 16.7% 20%+ Specialty Engineered Materials 1.1% 14.7% 20%+ Designed Structures & Solutions 1.4% (2012) 3.0% 12 – 14% Performance Products & Solutions 5.5% 8.3% 10 – 12% Distribution 2.6% 6.6% 6.5 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 65% 80%+ 3) ROIC* 5.0% 11.8% 15% 4) Adjusted EPS Growth N/A 25 Consecutive Quarters of YOY EPS Growth Double Digit Expansion Proof of Performance & 2020 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period PolyOne Corporation Page 10 Therma-Tech™ & Sheet GEON™ Vinyl Polymer Colorants Therma-Tech™ TPE’s & Film TPE + OnForce™ Gravi-Tech™ Page 10 Film Target End Markets… Healthcare PolyOne Corporation Page 11 TPE + OnForce OnForce TPE Vibration Dampening (SEM/GLS) TPE & Film (SEM + DSS) Polymer Colorants (CAI) Thermatech Thermoplastic Elastomers TPE + OnForce OnForce Thermoplastic Elastomers Polymer Colorants (CAI) Sheet (DSS) Source: Outdoor Industry Association Target End Markets… Outdoor High Performance PolyOne Corporation Page 12 Sound & Vibration Management Fuel Handling Systems Interior & Exterior Trim Structural Braces & Brackets Interior Structural Components Lighting Air management Electronics & Cameras Fluid Handling Target End Markets… Automotive Underhood Components Roof Systems PolyOne Corporation Page 13 Target End Markets… Packaging PreservaPak™ OnColor™ Smart Batch™ VersaFlex™ TPE Cap Liner ColorMatrix™ Amosorb™ Oxygen Scavenger ColorMatrix™ Ultimate™ UV Light Barrier OnCap™ Laser Marking Additives PolyOne Corporation Page 14 Innovation Drives Earnings Growth *Specialty Platform revenue from products introduced in last five years $20 $53 2006 2015 Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 28% 2006 2015 Specialty Platform Gross Margin 12% 43% 2006 2015 Target ≥ 35% Innovation Pipeline Potential PolyOne Corporation Page 15 2,883 2,414 2006 2015 Volume (lbs in millions) -16% $103 $192 2006 2015 Commercial, R&D and Marketing Spending ($M) +86% $303 $721 2006 2015 Adjusted Gross Margin ($M) +138% Investing to Drive Growth Ours Is Not a Cost Cutting Story PolyOne Corporation Page 16 Design and Service as a Differentiator Right Material & Color Desired Product Design Appropriate Manufacturing Process Delivering Concept to Commercialization Connecting the Dots with iQ Design Labs and InVisiO Color Design PolyOne Corporation Page 17 Customer First Through World-Class Service Strengthening relationships through:  Providing LSS services to small/medium sized customers  Providing training in Customer Centric Selling Skills with customers World’s Best Business Process Excellence Program in 2012* World’s Best Start-up program for Lean Six Sigma Deployment in 2009* 81% 93% 2006 2015 16.2% 9.7% 2006 2015 On-Time Delivery Working Capital % of Sales  52% of associates trained in LSS  Five consecutive years – CFO Magazine Best Working Capital Management in the chemical industry Commitment to Operational Excellence PolyOne Corporation Page 18 60% 97% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 Q4 2015 Pension Funding** As of December 31, 2015 Debt Maturities & Pension Funding Net Debt / Adjusted EBITDA*= 2.1x ** includes US-qualified pension plans only *TTM 12/31/2015 $550 $600 $200 $300 $400 $500 $600 $700 $800 2022 2023 Debt Maturities As of December 31, 2015 ($ millions) Coupon Rate: 3.750% 5.250% PolyOne Corporation Page 19 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~75% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends $0.16 $0.20 $0.32 $0.40 $0.48 $0.10 $0.20 $0.30 $0.40 $0.50 2011 2012 2013 2014 2015 2016 Annual Dividend  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Synergy opportunities  Adjacent material solutions  Repurchased nearly 1.0 million shares in Q4 2015  Repurchased 15.8 million shares since early 2013  4.2 million shares are available for repurchase under the current authorization $0.24 PolyOne Corporation Page 20 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?

PolyOne Corporation Page 4 PolyOne Commodity to Specialty Transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2014 2015 and beyond • Steve Newlin appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • Substantial EPS growth from $0.13 to all-time high of $1.80 • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Specialty mix expands to 65% of Operating Income – strongest mix of earnings in history • Accelerating growth • Deliver consistent double digit annual EPS growth • Maintain >35% vitality index • Pursue strategic acquisitions that expand specialty offerings and geographic breadth • Invest and grow current and next generation talent PolyOne Corporation Page 5 Building & 10% Electrical & 11% 9% Distribution 28% PP&S Specialty 52% 69% 13% 7% Asia 2014 Revenues: $3.8 Billion End Markets 2014 Revenues: $3.8 Billion PolyOne At A Glance $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 2006 2007 2008 2009 2010 2011 2012 2013 2014 Adjusted EPS PolyOne Corporation Page 6 Old PolyOne *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65% 66% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 YTD 2015 2020 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 80%+ Specialty OI $5M $46M $87M $195M $242M $183M Mix Shift Highlights Specialty Transformation Transformation 2020 Platinum Vision Platinum Vision PolyOne Corporation Page 7 Confirmation of Our Strategy Specialization Globalization Operational Excellence Commercial Excellence Driven by our core values of Collaboration, Innovation and Excellence, we are the world’s premier provider of specialized polymer materials, services and solutions PolyOne Corporation Page 8 2006 YTD 2015 2020 “Where we were” “Where we are” Platinum Vision 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 17.2% 20%+ Global Specialty Engineered Materials 1.1% 15.1% 20%+ Designed Structures & Solutions 1.4% (2012) 3.5% 12 – 14% Performance Products & Solutions 5.5% 8.1% 10 – 12% Distribution 2.6% 6.6% 6.5 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 66% 80%+ 3) ROIC 5.0% 11.9% 15% 4) Adjusted EPS Growth N/A 24 Consecutive Quarters of YOY EPS Growth Double Digit Expansion Proof of Performance & 2020 Goals PolyOne Corporation Page 9 Innovation Drives Earnings Growth *Percentage of Specialty Platform revenue from products introduced in last five years $20 $52 2006 TTM Research & Development Spending ($ millions) Specialty Platform Vitality Index Progression* 14% 28% 2006 TTM Specialty Platform Gross Margin % 12% 43% 2006 TTM Specialty Vitality Index Target ≥ 35% TTM 9/30/15 TTM 9/30/15 TTM 9/30/15 PolyOne Corporation Page 10 Innovation Pipeline Potential Prototype Frame Opportunity Scale-up & Test Market Build Business Case Commercial Launch Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 12 4 9 6 1 6 3 7 4 5 6 1 1 7 2 Breakthrough Platform Derivative Number of Projects 12 10 23 19 10 74 Specialty Addressable Market ($ millions) - - $1,150 $1,000 $250 $2,400 PolyOne Corporation Page 11 Lightweighting with Advanced Composites Increasing Healthcare Penetration Innovation Initiatives Expansion in Consumer Markets New Market Development $$$ $$ $ High Temperature Polymers PolyOne Corporation Page 12 Design and Service as a Differentiator Right Material & Color Desired Product Design Appropriate Manufacturing Process Delivering Concept to Commercialization Connecting the Dots with iQ Design Labs and InVisiO Color Design PolyOne Corporation Page 13 Customer First Through World-Class Service Strengthening relationships through:  Providing LSS services to small/medium sized customers • Supporting customers who lack their own formal process improvement initiatives  Providing training in Customer Centric Selling Skills with customers’ sales force PolyOne Corporation Page 14 60% 97% 20% 30% 40% 50% 60% 70% 80% 90% 100% 2008 Q3 2015 Pension Funding** As of September 30, 2015 Debt Maturities & Pension Funding Net Debt / Adjusted EBITDA** = 2.1x $49 $121 $317 $600 $400 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2018 2020 2023 Debt Maturities As of September 30, 2015 ($ millions) Coupon Rate: 7.500% Variable* 7.375% 5.250% ** includes US-qualified pension plans only *Weighted average rate on revolver was 2.49% as of 9/30/15 **TTM 9/30/2015 PolyOne Corporation Page 15 Free Cash Flow and Strong Balance Sheet Fund Investment / Shareholder Return  Expanding our sales, marketing, and technical capabilities  Investing in operational and LSS initiatives  ~75% of capital expenditures fund growth initiatives Organic Growth Acquisitions Share Repurchases Dividends $0.16 $0.20 $0.32 $0.40 $0.48 $0.10 $0.20 $0.30 $0.40 $0.50 2011 2012 2013 2014 2015 2016 Annual Dividend  Targets that expand our: • Specialty offerings • End market presence • Geographic breadth  Synergy opportunities  Adjacent material solutions  Repurchased nearly 2.4 million shares in Q3 2015  Repurchased 14.8 million shares since early 2013  5.2 million shares are available for repurchase under the current authorization $0.24 PolyOne Corporation Page 16 The New PolyOne: A Specialty Growth Company Why Invest In PolyOne?

PolyOne Corporation Page 4 PolyOne Commodity to Specialty Transformation • Volume driven, commodity producer • Heavily tied to cyclical end markets • Performance largely dependent on non- controlling joint ventures 2000-2005 2006 - 2009 2010 – 2014 2015 and beyond • Steve Newlin appointed, Chairman, President and CEO • New leadership team appointed • Implementation of four pillar strategy • Focus on value based selling, investment in commercial resources and innovation to drive transformation • Substantial EPS growth from $0.13 to all-time high of $1.80 • Shift to faster growing, high margin, less cyclical end markets • Key acquisitions propel current and future growth, as well as margin expansion • Specialty mix expands to 65% of Operating Income – strongest mix of earnings in history • Accelerating growth • Deliver consistent double digit annual EPS growth • Maintain >35% vitality index • Pursue strategic acquisitions that expand specialty offerings and geographic breadth • Invest and grow current and next generation talent PolyOne Corporation Page 5 Building & 10% Electrical & 11% 9% Distribution 28% PP&S 52% 69% 13% 7% Asia 2014 Revenues: $3.8 Billion End Markets 2014 Revenues: $3.8 Billion PolyOne At A Glance $13 $31 $46 $46 $87 $96 $122 $195 $242 2006 2007 2008 2009 2010 2011 2012 2013 2014 Specialty Operating Income ($M) PolyOne Corporation Page 6 Old PolyOne *Operating Income excludes corporate charges and special items 2% 34% 43% 62% 65% 69% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2013 2014 Q1 2015 2020 % o f O pe ra tin g In co m e* JV's Performance Products & Solutions Distribution Specialty 80%+ Specialty OI $5M $46M $87M $195M $242M $60M Mix Shift Highlights Specialty Transformation Transformation 2020 Platinum Vision Platinum Vision PolyOne Corporation Page 7 Confirmation of Our Strategy The World’s Premier Provider of Specialized Polymer Materials, Services and Solutions Specialization Globalization Operational Excellence Commercial Excellence PolyOne Corporation Page 8 -100% 0% 200% 300% 400% 500% 600% Strategy and Execution Drive Results $0.12 $0.27 $0.21 $0.13 $0.68 $0.82 $1.00 $1.31 $1.80 '06 '07 '08 '09 '10 '11 '12 '13 '14 ‘06-‘14 Adjusted EPS CAGR = 40% Adjusted EPS Share Price vs.

Applications Middleware Database Data networks (internal and external) Desktop E September 11th E1 Did your organization invoke its business continuity or IT disaster recovery plan(s) as a result of the September 11 tragedy?