The healthcare industry is experiencing continual change driven by technological advancements, evolving patient needs, and increasing regulatory demands. Medical devices and equipment are at the forefront of this change, with innovations in diagnostic tools, surgical systems, and wearable health monitors reshaping patient care.

PROPOSAL 3 — APPROVAL OF THE POLYONE CORPORATION 2020 EQUITY AND INCENTIVE COMPENSATION PLAN General Why We Recommend That You Vote for this Proposaly p Our Board recommends a vote FOR this Proposal to approve the PolyOne Corporation 2020 Equity and Incentive Compensation Plan. 2020 Plan Highlights g g Administration Reasonable 2020 Plan Limits Allowances for Conversion Awards and Assumed Plans Limited Share Recycling Provisions Minimum Vesting No Repricing Without Shareholder Approval Change of Control Definition Exercise or Base Price Limitation. Section 162(m)( ) Summary of Other Material Terms of the 2020 Plany Administration Eligibility Share Counting Types of Awards Under the 2020 Plan Stock Options Appreciation Rights Restricted Stock Restricted Stock Units Performance Shares, Performance Units, and Cash Incentive Awards Awards to Non-Employee Directors Other Awards Change of Control: Management Objectives Transferability of Awards Adjustments Prohibition on Repricing Detrimental Activity and Recapture Grants to Non-U.S. Measure 2019 2018 Change Pay-for-Performance: 2019 Compensation Outcomes. 2019 Annual Incentive Program: 2017-2019 Long-Term Incentive Program: Listening to Shareholders.

In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Changes in laws and regulations regarding plastics in jurisdictions where we conduct business; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

In particular, these include statements relating to future actions; prospective changes in raw material costs, product pricing or product demand; future performance; estimated capital expenditures; results of current and anticipated market conditions and market strategies; sales efforts; expenses; the outcome of contingencies such as legal proceedings and environmental liabilities; and financial results. Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • 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; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • Changes in laws and regulations regarding plastics in jurisdictions where we conduct business; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, any recessionary conditions, and terrorism or hostilities Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures.

Measure 2018 2017 Change Return to Shareholders. Exercise or Base Price of Option Awards (column (i)) Grant Date Fair Value of Stock and Option Awards (column (j)) Narrative Disclosure Relating to the 2018 Summary Compensation Table and the 2018 Grants of Plan-Based Awards Table Outstanding Equity Awards at 2018 Fiscal Year-End Exercise Price Expiration Date Market Value of Shares or Units of Stock That Have Not Vested Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights that Have Not Vested (j) Stock Awards Equity Incentive Plan Awards: Number of Securities Underlying Unearned Options Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights that Have Not Vested (i) Number of Shares or Units of Stock That Have Not Vested Number of Underlying Unexercised Options (#) Unexercisable Number of Securities Underlying Options (#) Exercisable Option Awards Number of Securities Underlying Unexercised Options (#) Exercisable (column (b)) Number of Securities Underlying Unexercised Options (#) Unexercisable (column (c)) Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (column (d)) Option Exercise Price (column (e)) Option Expiration Date (column (f)) Number of Shares or Units of Stock That Have Not Vested (column (g)) Market Value of Shares or Units of Stock That Have Not Vested (column (h)) Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights That Have Not Vested (column (i)) Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights That Have Not Vested (column (j)) 2018 Option Exercises and Stock Vested Option Awards Stock Awards Acquired on Exercise Value Realized on Exercise Acquired on Vesting Value Realized on Vesting Option Awards (columns (b) and (c)) Stock Awards (columns (d) and (e)) 2018 Nonqualified Deferred Compensation Aggregate Executive Registrant Aggregate Aggregate Aggregate Balance at Contributions Contributions Earnings Withdrawals/ Balance at in Last FY in Last FY in Last FY Distributions Last FYE (1) ($)(2) ($)(3) ($)(4) ($) ($)(1)(5) Potential Payments Upon Termination or Change of Control Summary of Potential Payments Management Continuity Agreements Executive Severance Plan Annual Plan Long-Term Incentive Awards Retirement Benefits Payments and Benefits Upon Termination — As of the End of Fiscal Year 2018 CEO Pay Ratio Disclosure CEO Annual Total Compensation for 2018: $6,127,920 Median Employee Annual Total Compensation for 2018: $48,056 Ratio of CEO to Median Employee Annual Total Compensation for 2018: 128:1 How the Median Employee was Determined in 2017 Compensation Committee Interlocks and Insider Participation Policy on Related Person Transactions Risk Assessment of the Compensation Programs Compensation Committee Report The Compensation Committee of the Board of Directors MISCELLANEOUS MISCELLANEOUS PROVISIONS Voting at the Meeting not Shareholder Proposals MISCELLANEOUS Proxy Solicitation We will furnish without charge to each person from whom a proxy is being solicited, upon written request of any such person, a copy of the Annual Report on Form 10-K of the Company for the fiscal year ending December 31, 2018, as filed with the SEC, including the financial statements and schedules thereto. Kunkle APPENDIX A Year Ended Year Ended December 31, 2018 December 31, 2017 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Year Ended Year Ended December 31, 2016 December 31, 2015 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Year Ended December 31, 2014 Reconciliation to Condensed Consolidated Statements of Income $ EPS Year Ended December 31, Reconciliation to Consolidated Statements of Income 2018 2017 As of December 31, 2018 Table Of Contents Message From Our CEO Notice Of 2019 Annual Meeting Of Shareholders Proxy Summary Proxy Statement Proposal 1-Election Of Board Of Directors Proposal 2-Advisory Vote To Approve Named Executive Officer Compensation Proposal 3-Ratification Of Appointment Of Independent Registered Public Accounting Firm Corporate Governance 2018 Non-employee Director Compensation Ownership Of Polyone Shares Compensation Discussion And Analysis Executive Summary Executive Compensation Philosophy And Objectives What We Pay And Why: Elements Of Compensation Other Aspects Of Our Compensation Programs Executive Compensation 2018 Summary Compensation Table 2018 Grants Of Plan-Based Awards Outstanding Equity Awards At 2018 Fiscal Year-End 2018 Option Exercises And Stock Vested 2018 Nonqualified Deferred Compensation Potential Payments Upon Termination Or Change Of Control CEO Pay Ratio Disclosure Compensation Committee Interlocks And Insider Participation Policy On Related Person Transactions Risk Assessment Of The Compensation Programs Compensation Committee Report Miscellaneous Provisions Appendix A

Medical textile manufacturer LEARN MORE MEDICAL TEXTILE MANUFACTURER S U R G I C A L D R A P E S & G O W N S • Pre-tested for ISO 10993 biocompatibility standard • Available in standard blue or other customized colors • Compatible with ETO sterilization • Suitable for use in non-woven SMS spunbond layer • Offered standard blue and custom colors such as green • Pre-tested raw materials for biocompatibility ISO10993 standard • Manufactured under ISO 13485 certified medical sites with change control in place MevopurTM Healthcare Colorants and Formulations KEY REQUIREMENTS WHY AVIENT?

DONGGUAN FYRNETICS F I R E A L A R M C O M P O N E N T S • Excellent conductive performance, EMI shielding • Excellent IR absorption • Quality stability • Formulated material to meet all customer’s CTQs and support sensor’s certification for sensitivity and accuracy • Provided shorter lead time than previous material supplier, plus excellent service to support material change • Tested surface resistivity using ASTM D257 method, achieving result of E3-E4 Stat-Tech™ ST7400-8010 ESD Formulations KEY REQUIREMENTS WHY AVIENT?

AUTOMOTIVE OEM V E H I C L E L I G H T H E A T S I N K S • Replace aluminium to reduce part weight and cost • Excellent thermal performance • Simplify manufacturing process • Reduced part weight by 40% and 44% in two heat sink designs while matching the performance of the incumbent material • Met thermal efficiency demands through part re-design and material selection support • Customized multiple formulations to satisfy customer needs • Improved manufacturability by changing to a single injection molding step Therma-Tech™ Thermally Conductive Formulations KEY REQUIREMENTS WHY AVIENT?

PERSONAL WATERCRAFT OEM S T E E R I N G C O L U M N • Similar strength performance to existing aluminum assembly • Withstand outdoor UV exposure • Weight reduction for improved performance • Corrosion and moisture resistance • Premium aesthetic • Provided a material that met application load requirements and allowed for part consolidation • Delivered confidence in changing material through design consultation, robust Mold Flow simulation support, and UV customization • Incorporated carbon fiber to support a marketing story Complēt™ Hybrid Moisture Resistant Composite KEY REQUIREMENTS WHY AVIENT?

BLOOD LANCET MANUFACTURER S E A L I N G R I N G • Compliance with strict regulations for medical materials • Excellent sealing performance • Good compression set • Provided a recycled TPE solutions compared to silicone without increasing system cost • Delivered a TPE that complied with ISO 10993-4 & -5 and USP Class VI • Supported a change to an injection molded material to ease production and enhance assembly capabilities Versaflex™ HC TPEs – OM1040-1 Grade KEY REQUIREMENTS WHY AVIENT?