Independent Registered Public Accountant Services and Related Fee Arrangements Report of the Audit Committee The Audit Committee of the Board of Directors Director Independence Lead Director Board Leadership Structure Board’s Oversight of Risk Code of Ethics, Code of Conduct and Corporate Governance Guidelines Communication with Board Board and Committees Board Attendance Board Committees AAudit Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 9 Compensation Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 5 MEMBERS: Nominating and Governance Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 4 Environmental, Health and Safety Committee – Primary Responsibilities and Requirements MEETINGS IN 2018: 3 Board Refreshment 0% 20% 40% 60% 80% 100% 5 or fewer 6 to 10 More than 10 Years of Service NON-EMPLOYEE DIRECTOR COMPENSATION 2018 NON-EMPLOYEE DIRECTOR COMPENSATION Role Annual Cash Retainers 2018 Director Compensation Table Fees Earned or Paid in Cash Stock Awards Total (1) NON-EMPLOYEE DIRECTOR COMPENSATION Fees Earned or Paid in Cash (column (a)) Stock Awards (column (b)) Option Awards Outstanding and Fully-Vested Deferred Shares Number of Deferred Shares(1) Beneficial Ownership of Our Common Shares Owned(1) Right to Acquire Shares Total Beneficial Ownership Name and Address Shares % of Shares Stock Ownership Guidelines for Non-Employee Directors Section 16(a) Beneficial Ownership Reporting Compliance Executive Summary Name Title How Pay is Tied to Company Performance.

KEY CHARACTERISTICS • Intended for use in a variety of thermoset epoxy systems • Based on heat stability, lightfastness, weatherability and toxicity • Use level is 1%–2% for thick casting and 5%–10% for a thin coating APPLICATIONS Stan-Tone EPX dispersions are suitable for use in a variety of applications, including: • Protective coatings • Adhesives • Epoxy flooring • Electrical potting • Composites • Laminates Stan-Tone Code Pigment Type Approx. % Pigment Specific Gravity Color Index Lightfastness WHITE 10EPX03 Titanium Dioxide, Rutile 57 1.95 PW-6 I/O YELLOW 12EPX01 Diarylide AAOT GS 25 1.22 PY-14 I 12EPX03 Diarylide HR RS 20 1.2 PY-83 I/O (Mass) 13EPX02 Isoindolinone RS 30 1.3 PY-110 I/O 13EPX03 Benzimidazolone GS 40 1.27 PY-151 I/O (Mass) 81EPX01 Iron Oxide 40 1.62 PY-42 I/O ORANGE 15EPX03 Benzimidazolone 30 1.26 PO-36 I/O RED 23EPX04 Quinacridone BS 25 1.21 PV-19 I/O 23EPX06 Specialty Naphthol BS 30 1.21 PR-170 I/O (Mass) C 25EPX01 Red 2B, Ca Salt Bs 24 1.27 PR-48:2 I/O (Mass) 28EPX01 Red 2B, Ba Salt YS 23 1.29 PR-48:1 I/O (Mass) 82EPX01 Iron Oxide, Light BS 40 1.67 PR-101 I/O 82EPX02 Iron Oxide, Dark BVS 40 1.68 PR-101 I/O 82EPX04 Iron Oxide, Light VYS 40 1.67 PR-101 I/O BLUE 40EXP03 Phthalocyanine GS 25 1.25 PB-15:3 I/O 40EXP05 Phthalocyanine RS 25 1.25 PB-15:3 I/O 42EXP02 Ultramarine 50 1.54 PB-29 I/O 49EXP01 Cobalt 50 1.83 PB-28 I/O GREEN 50EPX02 Phthalocyanine BS 18 1.34 PG-7 I/O 50EPX03 Phthalocyanine YS 25 1.42 PG-7 I/O 59EPX01 Chromium Oxide 40 1.64 PG-17 I/O VIOLET/MAGENTA 24EPX03 Quinacridone Violet 15 1.2 PV-19 I/O 24EPX04 Ultramarine Violet 50 1.66 PV-15 I/O 24EPX05 Quinacridone Magenta 20 1.21 PR-122 I/O 24EPX06 Benzimidazolone 20 1.2 PV-32 I/O 24EPX07 Carbazole Violet 15 1.2 PV-23 I/O BROWN/TAN 83EPX01 Iron Oxide, Light 39 1.64 PBr-6 I/O 83EPX02 Iron Oxide, Dark 40 1.66 PBr-6 I/O BLACK 90EPX01 Furnace - High Jet 14 1.23 PBk-7 I/O 90EPX04 Furnace - Medium 20 1.25 PBk-7 I/O 90EPX05 Iron Oxide 50 1.77 PBk-11 I/O EPX RS = Red Shade YS = Yellow Shade VYS = Very Yellow Shade BS = Blue Shade VBS = Very Blue Shade GS = Green Shade HR = Heat-Resistant LIGHTFASTNESS I = Indoor Only I/O = Indoor or Outdoor Mass = Outdoor Masstone Application Only C = Some Caution Advised www.avient.com Copyright © 2020, Avient Corporation.

ColorMatrix™ Ultimate™ UV390 ColorMatrix™ Ultimate™ UV390R UV Protection Up to 390 nm Up to 390 nm User Convertor Convertor Color Colorless Colorless Recycling Accreditation EPBP APR EPBP* APR* Lightweighting ✘ ✔ Productivity Saving ✘ ✔ * Individual components are EPBP approved Product Type CC Code EU FDA Mercosur China ColorMatrix™ Ultimate™ UV 390 CC01055275 • • • • ColorMatrixw Ultimate™ UV 390R CC10348919 • • • – Food contact uses are subject to regulatory limitations and use conditions COLORMATRIX™ ULTIMATE™ UV TECHNICAL AND REGULATORY INFORMATION

GLOBAL REGULATORY COMPLIANCE Our regional tech centers around the world offer regulatory support and product stewardship expertise to help you qualify your products BIO-COMPATIBILITY APPLICATIONS Bio-compatible additives and colorants, tested under USP Class VI and ISO 10993, allow your materials to achieve required functional performance while meeting brand and color standards STERILIZATION REQUIREMENTS A standard color range and deliberate formulations provide stability under harsh sterilization methods AUTHENTICATION TECHNOLOGY Protect your brands with our Percept™ anti-counterfeit, security and tracking taggant technologies, or utilize radiopacifiers for placement protection LASER MARKING SOLUTIONS Optimized for color and contrast without diminishing physical property characteristics for branding, inventory management, data coding, or universal device identification PRODUCT & PROCESS OPTIMIZATION Maximize production throughput or eliminate waste with solutions including dimensional stabilization, cycle time reducers, chemical foaming agents, nucleation or hybrid technology ONCOLOR™ HC Colorants designed to be healthcare-friendly.

Upon approval of the final CMF concept, the product code is issued, and a production location for the masterbatch is determined.

Bourg-en-Bresse - 22/12/2021 - 10:38:15 page 1/2 Extrait Kbis EXTRAIT D'IMMATRICULATION PRINCIPALE AU REGISTRE DU COMMERCE ET DES SOCIETES à jour au 21 décembre 2021 Code de vérification : iWCDBNXrir https://www.infogreffe.fr/controle IDENTIFICATION DE LA PERSONNE MORALE Immatriculation au RCS, numéro 842 455 487 R.C.S.

Code of Ethics, Code of Conduct and Corporate Governance Guidelines In accordance with applicable NYSE listing standards and Securities and Exchange (“SEC”) regulations, the Board has adopted a Code of Ethics, Code of Conduct and Corporate Governance Guidelines. We adhere to executive compensation best practices P No excise tax gross-up for “excess parachute payments” under Section 280G of the Internal Revenue Code of 1986, as amended (“Code”) in any new management continuity agreements or for financial planning benefits. Deferrals under Internal Revenue Code tax-qualified plans, such as a 401(k) plan, do not affect our current tax deduction.

They apply to, among other things, electrical appliances, power electronics, smart buildings and grid infrastructure, electronic/electrical connectors and Electric Vehicle charging infrastructure.

T H E N E W P O L Y O N E : A S P E C I A L T Y G R O W T H C O M P A N Y SERVICE: T H E T I M E L E S S D I F F E R E N T I A T O R PolyOne Corporation 31 T A L E N T D E V E L O P M E N T PolyOne Corporation 32 Leadership Program Participants 2012 2013 2015 47 86 2016 2018 125 169 315 Campus Hires 2008 2011 2017 25 90 47 PolyOne LSS Blackbelts 2008 2011 2018 67 220 147 2018 141 A U N I Q U E C U S T O M E R E X P E R I E N C E Industrial Design IQ DESIGN LABS PolyOne Corporation 33 Material & Color Expertise Manufacturing Expertise 3 14 Industrial designers $0 $10M $4M $80M Opportunity funnel New business revenue LSS CUSTOMER FIRST PolyOne Corporation 34 Customer Projects 2 104 3 D P R I N T I N G B R I N G I N G N E W I D E A S T O L I F E PolyOne Corporation 35 PolyOne Corporation 36 99.9% up to 24 weeks 6 hours C O L O R M A T R I X S E L E C T ™ I N N O V A T I N G W I T H P O L Y O N E PolyOne Corporation 37 SEGMENT HIGHLIGHTS C O L O R , A D D I T I V E S & I N K S PolyOne Corporation 38 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants 14% Textiles 13% Building & Construction 8% 8% Appliances Electrical & Electronic 1% Operating Income & MarginRevenue by Region C O L O R , A D D I T I V E S & I N K S 2 0 1 8 R E V E N U E | O V ER $ 1 B I L L I O N $4 $25 $104 $159 0.9% 5.5% 12.2% 15.1% PolyOne Corporation 39 45% 14% 1% Mexico South America S P E C I A L T Y E N G I N E E R E D M A T E R I A L S PolyOne Corporation 40 Engineered Formulations Advanced Composites Thermoplastic Elastomers 21% 13%Healthcare 9% 9% Building & Construction 4% Electrical & Electronics 16% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Revenue by Region Operating Income & Margin 2 0 1 8 R EV EN U E | $ 6 4 6 M I L L I O N PolyOne Corporation 41 $21 $57 $72 0.1% 5.1% 9.3% 11.2% 46% 24% P E R F O R M A N C E P R O D U C T S & S O L U T I O N S PolyOne Corporation 42 Specialty Vinyl Solutions Healthcare Formulations Smart Device Flame Retardant Polymers Building & 16%Consumer 4% Electrical & 4% Asia 78% Mexico P E R F O R M A N C E P R O D U C T S & S O L U T I O N S Operating Income & MarginRevenue by Region 2 0 1 8 R EV EN U E | $ 7 3 6 M I L L I O N $40 $24 $56 $74 4.6% 3.6% 7.2% 10.0% PolyOne Corporation 43 D I S T R I B U T I O N EN D M A R K ET S & S U P P L I ER S PolyOne Corporation 44 27% 22% Electrical & Building & $20 $25 $63 $71 2.9% 4.0% 5.9% 5.6% Operating Income & Margin2018 Revenue | $1.3 Billion http://www.avient.com/Pages/VariationRoot.aspx O V E R V I E W O F R A W M A T E R I A L P U R C H A S E S PolyOne Corporation 45 T A R G E T E N D M A R K E T S & A P P L I C A T I O N E X A M P L E S PolyOne Corporation 46 Thermally Conductive Chemical Resistant Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Target End Markets… Healthcare Catheter Technologies Under-hood Components Target End Markets… Automotive Interior Structural Sound & Vibration Management Roof Systems Air Management Electronics and Cameras Lighting Exterior / Interior Trim Braces & Brackets Fasteners Seals & Flaps Target End Markets… Consumer Thermally Conductive Polymer Colorants Elastomeric Grips and Handles Structural Composite Oxygen Scavenger Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Antioxidant Technologies Density Modified Target End Markets… Packaging Luxury Packaging GravitechTM Density Modified Polymers Optimize Color Usage OnColorTM Super Concentrates Combat Bacteria Formation WithStandTM Antimicrobial Technology Medical Device Housings Chemically Resistant Engineered Polymers Color & Design Services Outdoor Applications Fiber Colorants Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to PolyOne shareholders, excluding special items, to assess performance and facilitate comparability of results.

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?