Validity Avient Switzerland GmbH Hauptstrasse 30 4127 Birsfelden Switzerland Design and manufacture of colour and additive concentrates and specialty compounds for the Healthcare and Medical device market. Validity Avient (Taiwan) Co. EN ISO 13485:2016 H61173 01.03. 2025 29.02. 2028 Avient Colorants USA LLC 17 Foss Rd.

Avient Tedarikçi Davranış Kuralları Avient Corporation ve bağlı şirketleri ve iştirakleri (“Avient”) dünya standartlarında, sürdürülebilir bir kuruluş olmaya kararlıdır. Avient ticari yolsuzluk veya rüşveti yasaklar. Avient ile yapılan tüm işlemlere ve ilişkilere gizli ve özel muamelesi yapın.

COLLABORATION HELPS POTABLE WATER EQUIPMENT MANUFACTURER FEND OFF PIRATES To learn more about Avient’s lasermarking and anti-counterfeiting solutions, contact us at info@Avient.com. When this manufacturer approached Avient to explore solutions, it explained how customers had a hard time deciding which equipment was genuine and which was pirated. As the Avient team looked into the differences, it found that the customer was marking its genuine articles with direct or indirect hot stamp foil and ink methods.

NOTICE OF 2019 ANNUAL MEETING OF SHAREHOLDERS AND PROXY STATEMENT PolyOne Corporation MESSAGE FROM OUR CEO Your vote is very important. 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 Option Exercise Price ($) (e) Option Expiration Date (f) Market Value of Shares or Units of Stock That Have Not Vested ($) (h) Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights that Have Not Vested ($) (j) Name (a) Stock Awards Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (#) (d) Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights that Have Not Vested (#) (i) Number of Shares or Units of Stock That Have Not Vested (#) (g) Number of Securities Underlying Unexercised Options (#) Unexercisable (c) Number of Securities Underlying Unexercised Options (#) Exercisable (b) Option Awards EXECUTIVE COMPENSATION EXECUTIVE COMPENSATION Number of Securities Underlying Unexercised Options (#) Exercisable (column (b)) Number of Securities Underlying Unexercised Options (#) Unexercisable (column (c)) Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (column (d)) Option Exercise Price (column (e)) Option Expiration Date (column (f)) Number of Shares or Units of Stock That Have Not Vested (column (g)) Market Value of Shares or Units of Stock That Have Not Vested (column (h)) Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights That Have Not Vested (column (i)) EXECUTIVE COMPENSATION Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights That Have Not Vested (column (j)) 2018 Option Exercises and Stock Vested Name (a) Option Awards Stock Awards Number of Shares Acquired on Exercise (#) (b) Value Realized on Exercise ($) (c) Number of Shares Acquired on Vesting (#) (d) Value Realized on Vesting ($) (e) Option Awards (columns (b) and (c)) Stock Awards (columns (d) and (e)) 2018 Nonqualified Deferred Compensation EXECUTIVE COMPENSATION Name Aggregate Executive Registrant Aggregate Aggregate Aggregate Balance at Contributions Contributions Earnings Withdrawals/ Balance at in Last FY in Last FY in Last FY Distributions Last FYE (1) ($)(2) ($)(3) ($)(4) ($) ($)(1)(5) Potential Payments Upon Termination or Change of Control Summary of Potential Payments EXECUTIVE COMPENSATION Management Continuity Agreements Executive Severance Plan EXECUTIVE COMPENSATION Annual Plan Long-Term Incentive Awards Retirement Benefits Payments and Benefits Upon Termination — As of the End of Fiscal Year 2018 EXECUTIVE COMPENSATION EXECUTIVE COMPENSATION 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 EXECUTIVE COMPENSATION Compensation Committee Interlocks and Insider Participation Policy on Related Person Transactions Risk Assessment of the Compensation Programs EXECUTIVE COMPENSATION 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

TIER 2 SUPPLIER H V A C F L A P • Eliminate post treatment heating of parts to achieve required odor level (≤3.0 VDA 270) • Lowest VOC / FOG performance (VDA 278) at the same compression set as previous material • Reduced processing steps and lowered energy costs for the molder • Achieved targeted odor levels and met VOC / FOG performance and compression set standards OnFlex™ LO Thermoplastic Elastomer WHY AVIENT? AVIENT SOLUTION MEETS VIAQ STANDARDS LEARN MORE KEY REQUIREMENTS Copyright © 2020, Avient Corporation. WHY AVIENT?

ABS Quality Evaluations This is to certify that the Quality Management System of: Avient Corporation Avient Corporation - McHenry, IL 831 Ridgeview Drive McHenry, IL 60050 U.S.A. All rights reserved. 45324Certificate No: Facility: Avient Corporation - McHenry, IL 833 Ridgeview Drive McHenry, IL 60050 U.S.A. Facility: Avient Corporation - McHenry, IL 921 Ridgeview Drive McHenry, IL 60050 U.S.A.

SOFT TOUCH + COLORABILITY FOOTWEAR ACCESSORY BRAND F O O T W E A R I N S E R T • Low durometer with good processability • Optimal cushioning with high elasticity • Non-tacky feel • Excellent colorability • Customized a formulation to achieve super soft gel performance without a tacky finish • Provided material with sufficient cushioning and elasticity for all-day comfort • Optimized lead time and stable supply with local inventory Versaflex™ Customized TPE KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION LEARN MORE Copyright © 2021, Avient Corporation. All Rights Reserved.Copyright © 2022, Avient Corporation.

MUSIC ACCESSORIES OEM G U I T A R P I C K S • Achieve colors that provide enhanced visibility in low-light environments • Shorten the product development time to accelerate speed to market • Create a framework of accessibility-focused picks that meet quality and performance standards • Provided onsite exploration using color theory and trend research to develop three color options for use in dimly lit environments or by people with low vision • Expedited the process with rapid color matching, iterations, and approvals, allowing time for additional matches to be explored • Developed specific colors that met all quality standards and offered unique, vibrant, and fun options ColorWorks™ Design Center, Phoenix, AZ KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION COLOR + ACCESSIBILITY LEARN MORE Copyright © 2024, Avient Corporation. All Rights Reserved. https://www.avient.com/avient-colorworks

MAM L E A R N T O D R I N K ™ C U P • Compliance with EU fatty food contact regulations* • Soft, gentle feel • Non-BPA, non-phthalate • Great colorability • Provided customized solution to comply with Europe’s fatty food contact requirements and application needs • Enhanced customer appeal with a soft, durable and custom-colored solution Versaflex™ FFC Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION MEETS FATTY FOOD COMPLIANCE LEARN MORE* Limitations may apply – check with Avient for more information Copyright © 2020, Avient Corporation.

Copyright © 2020, Avient Corporation. VACUUM CLEANER MANUFACTURER G E A R O F V A C U U M C L E A N E R • Excellent wear resistance • Durability • Cost effective • Our product provides excellent wear resistance to improve durability and product life cycle. • Offered one-stop solution for technology services to meet customer demands of cost and performance LubriOne™ LB6600-8019 AR NC001 Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION SHORT LEAD TIME + ONE-STOP SERVICE LEARN MORE Copyright © 2020, Avient Corporation.