MEDICAL EQUIPMENT MANUFACTURER C L O S E D S Y S T E M D R U G T R A N S F E R D E V I C E • A new material for a seal inside the next generation of closed system drug transfer device • Compliance with stringent regulatory standards: • Biocompatibility to ISO10993 • USP VI compliance • Provided regulatory support services and expertise throughout extensive medical approval process • Provided a custom formulation compliant with the highest healthcare regulatory standards • Enabled material to be manufactured and shipped globally Custom Versalloy™ HC 9220-90 Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION REGULATORY COMPLIANCE LEARN MORE © 2020, All Right Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 https://www.polyone.com/products/thermoplastic-elastomers/versalloy-thermoplastic-elastomers Medical equipment Manufacturer

INDUSTRIAL FAN MANUFACTURER A X I A L F A N B L A D E • Replace aluminium alloy • Reduce thickness and weight of fan blade • Withstand 920 Pa of static pressure, high relative humidity (90-95%), and max temperature of 104ºF • Redesigned the 1600mm blade utilizing 3D modeling and mold flow analysis services from Avient Design • Simulated mechanical load to determine which new design would provide optimal performance • Increased strength using a carbon fiber grade, enabling injection-moldable parts and streamlined production • Reduced blade thickness to 35% of the original and blade weight from 7.71 lbs to 1.76 lbs (77% decrease) • Improved overall efficiency of fan with a thinner, lighter blade that cuts through the air Complēt Long Fiber Reinforced Thermoplastic KEY REQUIREMENTS WHY AVIENT? LEARN MORE https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-long-fiber-reinforced-structural-thermoplastics Slide 1: Industrial fan manufacturer

Phil Clark is Senior Vice President, Chief Technology Officer, for Avient Corporation, the world’s premier provider of specialized and sustainable material solutions and services. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com http://www.avient.com/

Home printer OEM HOME PRINTER OEM R E C Y C L E D H I P S I N J E C T I O N C O V E R O F P R I N T E R • Provide PCR-based colorants for a more sustainable solution • Meet both color and mechanical requirements in PCR materials • Offer user-friendly PCR + Colorants solution to address the batch variance problem of PCR in an economical way • Offered revolutionary supply model of PCR + Colorants, ensuring precise quality and color • Helped customers solve the batch variance problem of PCR in a digital way and shortened the color-matching time with PCR Color Prediction Service • Provided on-site technical support to customer Rejoin PCR Colorants KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/rejoin-pcr-colorants Slide 1: Home printer OEM

ROSE Vice President, Corporate Communications Kyle Rose is Vice President, Corporate Communications, for Avient Corporation, the world’s premier provider of specialized and sustainable material solutions and services. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com http://www.avient.com/

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. Tax Consequences to the Company or its Subsidiaries Registration with the SECg EQUITY COMPENSATION PLAN INFORMATION AS OF DECEMBER 31, 2019 Number of securities to be issued upon exercise of outstanding options, warrants and rights Weighted-average exercise price of outstanding options, warrants and rights Number of securities remaining available for future issuance under equity compensation plans (excluding securities reflected in column (a)) PROPOSAL 4 — RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM Our Board recommends a vote FOR this Proposal to ratify the Audit Committee’s appointment of EY as our independent registered public accounting firm for 2020. Other Benefits. 2019 Grants of Plan-Based Awards Estimated Future Payouts Under Non-Equity Incentive Plan Awards (columns (c), (d) and (e)) (1) 2019 Annual Incentive Program Payments Maximum All Other Stock Awards: Number of Shares of Stock or Units Estimated Future Payouts Under Equity Incentive Plan (a) Grant Date Grant Date Fair Value of Stock and Option Threshold Exercise or Base Price of Option Awards ($/Sh) Threshold (f)ff Estimated Future Payouts Under Non-Equity Incentive Plan Awards ( ) ( ) ( ) (j)( )( )(g)( ) ( )( ) (j)( )( )(g)( ) ( )( )( ) ( ) ( ) (2) Cash-Settled Performance Units.

will provide additional details on its 2024 first quarter and 2024 outlook during its webcast scheduled for Webcast Details For more information, visit https://www.avient.com.

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About PolyOne PolyOne Corporation, with 2016 revenues of $3.3 billion, is a premier provider of specialized polymer materials, services and solutions. EDITORS: For a high-resolution image, please click here: OnCap™ anti-fog additive solutions To access PolyOne’s news library online, please go to http://www.polyone.com/news.

About PolyOne PolyOne Corporation, with 2015 revenues of $3.4 billion, is a premier provider of specialized polymer materials, services and solutions. http://www.ecocenter.org/article/news-ecolink-press-releases/new-ecology-center-guide-toxic-chemicals-cars-helps-consumers