Record Retention  Production records are stored for a minimum of 1 year.  ERP records are kept for a minimum of 5 years. The record retention period for these records is seven (7) years. The record retention period for these records is three (3) years.

Eastern Time www.virtualshareholdermeeting.com/POL2020 Record Date Voting Matters and Vote Recommendations Proposals For Your Vote Board Recommendation 1 2 3 4 Lisa K. PROXY SUMMARY PROXY SUMMARY VOTING AND MEETING INFORMATION www.virtualshareholdermeeting.com/POL2020 Attendance and Participation www.virtualshareholdermeeting.com/POL2020 Who is Eligible to Vote Shareholders of Record www.virtualshareholdermeeting.com/POL2020 f fBeneficial Owners of Shares Held in Street Name PROXY SUMMARY www.virtualshareholdermeeting.com/POL2020 Advance Voting Methods www.proxyvote.com OVER THE INTERNET BY TELEPHONE BY MAIL Each shareholder’s vote is important. EXECUTIVE COMPENSATION 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 2019 Summary Compensation Table and the 2019 Grants of Plan-Based Awards Table EXECUTIVE COMPENSATION Outstanding Equity Awards at 2019 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 ($) (j) Name (a) Stock Awards Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (#) (d) Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights that Have Not Vested (#) (i) Number of Shares or Units of Stock That Have Not Vested (#) (g) Number of Securities Underlying Unexercised Options (#) Unexercisable (c) Number of Securities Underlying Unexercised Options (#) Exercisable (b) Option Awardsp ( ) ( ) (j)( )( )( ) (g)( )( )( ) EXECUTIVE COMPENSATION Number of Securities Underlying Unexercised Options (#) Exercisable (column (b)) Number of Securities Underlying Unexercised Options (#) Unexercisable (column (c)) Equity Incentive Plan Awards: Number of Securities Underlying Unexercised Unearned Options (column (d)) Option Exercise Price (column (e)) EXECUTIVE COMPENSATION Option Expiration Date (column (f)) Number of Shares or Units of Stock That Have Not Vested (column (g)) Market Value of Shares or Units of Stock That Have Not Vested (column (h)) Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights That Have Not Vested (column (i)) Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights That Have Not Vested (column (j)) 2019 Option Exercises and Stock Vested Name (a) Option Awards Stock Awards Number of Shares Acquired on Exercise (#) (b) Value Realized on Exercise ($) (c) Number of Shares Acquired on Vesting (#) (d) Value Realized on Vesting ($) (e) Stock Awards (columns (d) and (e)) EXECUTIVE COMPENSATION 2019 Nonqualified Deferred Compensation Name Aggregate Executive Registrant Aggregate Aggregate Aggregate Balance at Contributions Contributions Earnings Withdrawals/ Balance at 12/31/2018 in Last FY in Last FY in Last FY Distributions Last FYE ($)(1) ($)(2) ($)(3) ($)(4) ($) ($)(1)(5) EXECUTIVE COMPENSATION Potential Payments Upon Termination or Change of Control Summary of Potential Payments Management Continuity Agreements EXECUTIVE COMPENSATION Executive Severance Plan Long-Term Incentive Awards Retirement Benefits EXECUTIVE COMPENSATION Payments and Benefits Upon Termination — As of the End of Fiscal Year 2019 Name Benefits and Payments Voluntary Termination ($) Retirement (1) t ($) Disabilitytt ($) Death ($) Involuntary Termination with Cause ($) Involuntary Termination without Cause ($) vo u ta yvo u ta y Termination without Cause or for Good Reason Following a Change of Control ($)( )( )( )( )y ( )( )( )y EXECUTIVE COMPENSATION CEO Pay Ratio Disclosure CEO Annual Total Compensation for 2019: $6,106,632 Median Employee Annual Total Compensation for 2019: $53,371 Ratio of CEO to Median Employee Annual Total Compensation for 2019: 114:1 How the Median Employee was Determined in 2017 EXECUTIVE COMPENSATION Compensation Committee Interlocks and Insider Participation Risk Assessment of the Compensation Programs Compensation Committee Report The Compensation Committee of the Board of Directors MISCELLANEOUS MISCELLANEOUS PROVISIONS Voting at the Meeting nott 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 ended December 31, 2019, as filed with the SEC, including the financial statements and schedules thereto.

Expects record fourth quarter adjusted EPS of approximately $0.48 compared to previous fourth quarter outlook of $0.40; increase is driven primarily by improved demand conditions across all business segments and regions We expect to achieve record fourth quarter adjusted EPS of approximately

Committee members will serve until their successors are elected and qualified, or until their earlier death, retirement, resignation, or removal by the Board. • The Committee will consist of a minimum of three directors. • The Board will select a Chair of the Committee.

Committee members will serve until their successors are elected and qualified, or until their earlier death, retirement, resignation, or removal by the Board.

While individual country laws vary, these laws make it illegal to engage in any form of corruption or bribery and require companies to keep books, records and accounts in reasonable detail. Any payments to government officials should be promptly reported and properly recorded and include the purpose, amount, and other relevant factors. Misleading, incomplete or false entries in Avient’s books and records are never acceptable.

to stockholders of record on

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Earnings webcast recording, slide presentation, and press release available at https://www.avient.com/investors/events-presentations.

The company has an exciting track record of success expanding its sustainable solutions portfolio, and leveraging digital technology will play an important role in accelerating growth.