Müller, CEO sqs.ch Swiss Made Member of Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland

Additionally, 52% of our facilities are certified to ISO 14001, 56% to Responsible Care 14001 and ISO 45001, and 10% of our high energy sites are certified to ISO 50001. Our CEO is ultimately accountable to our Board, and our Board also has determined that it has responsibility for overseeing the actions of the CEO (and management) in these areas. iii. Additionally, 52% of our facilities are certified to ISO 14001, 56% to Responsible Care 14001 and ISO 45001, and 10% of our high energy sites are certified to ISO 50001.

The high level of attention, engagement and collaboration among member CEOs has been instrumental in AEPW’s very first year. PolyOne’s best days are ahead, and it remains an honor to serve all of our many stakeholders as Chairman, President and CEO of this great company! Patterson Chairman, President and CEO 74424.indd main_16 3/16/20 12:26 PM 4424_NARc5.indd 17 3/17/20 12:52 PM [THIS�PAGE�INTENTIONALLY�LEFT�BLANK] 1 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47 49 51 53 55 57 59 61 63 65 67 69 71 73 [THIS PAGE INTENTIONALLY LEFT BLANK] [THIS�PAGE�INTENTIONALLY�LEFT�BLANK] [THIS�PAGE�INTENTIONALLY�LEFT�BLANK] STOCK EXCHANGE LISTING PolyOne's Common Stock is listed on the New York Stock Exchange, Symbol: POL.

TECHNICAL BULLETIN UV RESISTANCE • UV testing: QUV-A Test, 0.68 @ 45C • Comparable results to traditional TPEs reSound OM 5510-45N reSound OM 5510-60N Bio-derived Content (%) 40% 50% Hardness, Shore A 45 60 Delta E after 150 hrs. 0.22 0.23 Delta E after 300 hrs. 1.68 0.56 AGING – BONDING STRENGTH ONTO ABS reSound OM 5520-55N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 49% 49% 49% 49% 49% 49% 49% Hardness, Shore A 54 54 55 54 55 56 OM Substrate ABS ABS ABS ABS ABS ABS ABS OM Avg. Peel, PLI 12 19 23 20 19 reSound OM 5510 for PP reSound OM 5510-60N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 50% 50% 50% 50% 50% 50% 50% Hardness, Shore A 60 60 60 60 60 60 60 Specific Gravity 0.89 0.89 0.89 0.89 0.89 0.89 0.90 50% Modulus, PSI 247 241 244 251 234 244 240 100% Modulus, PSI 343 333 338 339 321 331 326 Tensile Strength, PSI 625 621 647 610 633 662 642 Elongation, % 306 314 309 313 312 315 315 Tear Strength, PLI 109 108 113 113 111 117 115 reSound OM 5520-55N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 49% 49% 49% 49% 49% 49% 49% Hardness, Shore A 54 54 55 55 54 55 56 Specific Gravity 0.95 0.95 0.96 0.96 0.95 0.96 0.96 50% Modulus, PSI 258 256 256 265 266 271 257 100% Modulus, PSI 353 355 357 362 373 379 367 Tensile strength, PSI 637 615 637 669 651 674 642 Elongation, % 319 315 319 333 313 319 315 Tear Strength, PLI 146 136 133 142 137 138 141 reSound OM 5510-45N Room Temperature 70C 1 day 1 week 2 weeks 6 months 1 week 2 weeks 3 weeks Bio-derived Content (%) 40% 40% 40% 40% 40% 40% 40% Hardness, Shore A 45 46 47 46 46 45 45 Specific Gravity 0.88 0.89 0.89 0.89 0.89 0.89 0.90 50% Modulus, PSI 153 158 154 162 137 136 133 100% Modulus, PSI 251 259 259 261 226 222 218 Tensile Strength, PSI 438 481 451 495 417 470 486 Elongation, % 215 240 211 243 204 227 238 Tear Strength, PLI 84 81 87 82 83 85 84 AGING – PROPERTY RETENTION • Tested at room temperature and 70° C for comparison • Hardness, tensile strength elongation and modulus showed great retention Overmolding onto PP Overmolding onto ABS RHEOLOGY Suitable for injection molding and overmolding 1.0 10 100 1000 10000 100000 10.0 100.0 1000.0 reSound OM 5510-30N reSound OM 5510-45N reSound OM 5510-60N reSound OM 5510-70N Shear Rate, 1/s Ca pi lla ry V is co si ty , P a* s 1.0 10 100 1000 10000 100000 10.0 100.0 1000.0 reSound OM 5520-55N Shear Rate, 1/s Ca pi lla ry V is co si ty , P a* s Capillary viscosity at 200°C Capillary viscosity at 200°C reSound OM 5510 for PP reSound OM 5520 for ABS www.avient.com Copyright © 2020, Avient Corporation.

Müller, CEO SQS 66 60 _2 / J un e 20 19 / V er si on 2 .0 Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland A.

Müller, CEO SQS 66 60 _2 / J un e 20 19 / V er si on 2 .0 Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland A.

Ashish Khandpur President and CEO December 18, 2023

Midea previously was President and CEO Resco Products and President and COO at Ennis Traffic Solutions.

NOTICE OF 2020 ANNUAL MEETING OF SHAREHOLDERS AND PROXY STATEMENT PolyOne Corporation PROPOSAL 1 — ELECTION OF BOARD OF DIRECTORS ............................................................................................................ 11 PROPOSAL 2 — ADVISORY VOTE TO APPROVE NAMED EXECUTIVE OFFICER COMPENSATION ............................ 16 PROPOSAL 3 — APPROVAL OF THE POLYONE CORPORATION 2020 EQUITY AND INCENTIVE COMPENSATION PLAN .........................................................................................................................................17 PROPOSAL 4 — RATIFICATION OF APPOINTMENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM ................................................................................................................................................30 MESSAGE FROM OUR CEO www.virtualshareholdermeeting.com/POL2020 Your vote is very 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. Stock-Based Awards in Substitution for Option Rights or Awards Granted by Other Company (a) (b) (c) Sections 22(a) 22(b) ( ) ( ) Section 3 Sections 22(a) 22(b)( ) ( ) Section 3(a)(i) ( )( ) Table Of Contents Message From Our Ceo Notice Of 2020 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 - Approval Of The Polyone Corporation 2020 Equity And Incentive Compensation Plan Proposal 4 - Ratification Of Appointment Of Independent Registered Public Accounting Firm Corporate Governance 2019 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 2019 Summary Compensation Table 2019 Grants Of Plan-based Awards Outstanding Equity Awards At 2019 Fiscal Year-end 2019 Option Exercises And Stock Vested 2019 Nonqualified Deferred Compensation Potential Payments Upon Termination Or Change Of Control Ceo Pay Ratio Disclosure Compensation Committee Interlocks And Insider Participation Risk Assessment Of The Compensation Programs Compensation Committee Report Miscellaneous Provisions Appendix A Appendix B

Ashish Khandpur President and CEO December 18, 2023