First quarter sales of $827 million, reflects 2% organic growth over the prior year quarter, excluding the impact of foreign exchange Fir Avient Announces Fourth Quarter and Full Year 2024 Results Fourth quarter sales increased 4% to $747 million and full year sales increased 3% to $3,240 million Organic sales, which excludes the im

First quarter sales of $827 million, reflects 2% organic growth over the prior year quarter, excluding the impact of foreign exchange Fir Avient Announces Fourth Quarter and Full Year 2024 Results Fourth quarter sales increased 4% to $747 million and full year sales increased 3% to $3,240 million Organic sales, which excludes the im

ThermoBallistic™ thermoplastic composite panels Thermoplastic Composites: Thermoset Composites:

Thermoplastic Composites: Thermoset Composites: Gordon Composites™ continuous glass and carbon fiber bar stock, laminates, and composite springs, including springs for high-temperature industrial applications

Thermoplastic Composites: Hammerhead™ marine composite panels Thermoset Composites:

In January we acquired Fiber-Line, a global leader in customized engineered fibers and composite materials that serves the fiber optic cable, oil & gas, industrial and consumer industries. Of particular note, our high-strength composites that enable lightweighting and barrier additives that reduce material requirements and increase shelf life both performed exceptionally well. Composites and additives are delivering today, and we expect they will continue to grow well into the future.

Homepage // News Center // Avient Debuts New Composite Formulations Virtually at CAMX 2020 CLEVELAND– September 10, 2020 – At the virtual Composites and Advanced Materials Expo (CAMX), Avient Corporation will introduce new enhanced adhesion formulations for its Glasforms™ thermoset pultruded composites. The Avient advanced composites portfolio includes Polystrand™ continuous fiber reinforced thermoplastics, Gordon Composites™ thermoset barstock and laminates, and Glasforms™ thermoset pultrusions.

Continuous Fiber Composite Panels Hammerhead™ FR Flame Retardant Composite Panels Interested in learning more about Avient’s composite panels in modular construction?

ABOVE GROUND SWIMMING POOL C O M P O S I T E S I D E W A L L • Corrosion resistance to withstand salt water pool treatment • UV resistance for durability over years of use • Weight reduction vs. traditional metal to reduce shipping costs and simplify installation • Field tested for 3 years to prove Polystrand solution provides excellent UV, creep, and corrosion resistance • Reduced weight by 50% compared to metal • Rolled product enabled standard shipping vs. coiled steel sidewalls that require LTL delivery Polystrand™ thermoplastic composite laminate (4-ply) with integrated decorative film KEY REQUIREMENTS WHY AVIENT? https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates

Please submit your vote and proxy by telephone or over the Internet, or complete, sign, date and return your proxy or voting instruction form. Measure 2018 2017 Change Return to Shareholders. 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