Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • disruptions or inefficiencies in our supply chain, logistics, or operations; • changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • fluctuations in raw material prices, quality and supply, and in energy prices and supply; • demand for our products and services; • production outages or material costs associated with scheduled or unscheduled maintenance programs; • unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • information systems failures and cyberattacks; • our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; • amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; • other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts, and any recessionary conditions; and • other factors described in our Annual Report on Form 10-K under Item 1A, “Risk Factors.”Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

They are engineered to provide simplified installation, long service life, and overall cost effectiveness.

Long fibre reinforced materials have an added degree of modelling complexity due to the need to capture the effects of bundling, fibre entanglement and weld lines.

Fast, accurate and reliable results aid medical professionals to understand the illness and develop the strategy for an effective treatment.

DURABILITY High Impact Strength, Weatherability SOLUTION: PP, HDPE, ASA, Nylon Engineered Formulations AESTHETIC APPEAL Custom Color & Special Effects, Paint Replacement SOLUTION: Custom Polymer Colorants, Pre-Colored High-Gloss Thermoplastics THERMAL MANAGEMENT LED Heat Sinks, Design Flexibility SOLUTION: Thermally Conductive Formulations EXTREME PERFORMANCE Chemical & Fire Resistance, High Temperature Performance SOLUTION: Nylon Engineered Formulations, Long Fiber Reinforced Composites, Continuous Fiber Composite Tapes & Laminates, Flame Retardant Polyolefin Formulations STRUCTURAL INTEGRITY High Stiffness-to-Weight Ratio, Metal Replacement SOLUTION: Pultruded Rods, Tubes & Custom Profiles, Long Fiber Reinforced Composites SENSORY EXPERIENCE Vibration Damping, Durability, Customization, Custom Color, Low Friction SOLUTION: Thermoplastic Elastomers (TPEs), Custom Polymer Colorants, Internally Lubricated Formulations, Advanced Composite Springs STRENGTH & STABILITY Excellent Dimensional Stability, High Stiffness, Impact Resistance SOLUTION: Short & Long Fiber Formulations, Continuous Fiber Composite Tapes & Laminates SURFACE PROTECTION Performance Enhancements SOLUTION: Scratch & Mar Resistance, UV Stable Additives, Anti-Static Additives STRUCTURAL PERFORMANCE Corrosion Resistance, Lightweighting SOLUTION: Long Fiber Reinforced Composites, Nylon Engineered Formulations, Continuous Fiber Composite Tapes & Laminates, Chemical Foaming Additives METAL REPLACEMENT Lightweighting, Heat Management, Load Carrying Capability SOLUTION: Long Fiber Reinforced Composites, Continuous Fiber Composite Tapes & Laminates TACTILE EXPERIENCE Soft-Touch Feel, Durability SOLUTION: Thermoplastic Elastomers (TPEs) https://www.avient.com/industries/consumer/outdoor-recreation/powersports https://www.avient.com/industries/consumer/outdoor-recreation/powersports https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/maxxam-polyolefin-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/edgetek-engineered-polymer-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/edgetek-engineered-polymer-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax-bergamid-polymer https://www.avient.com/products/polymer-colorants https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/artisan-pre-colored-thermoplastics-paint-replacement https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/therma http://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax-bergamid-polymer http://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax-bergamid-polymer https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations/long-fiber https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations/long-fiber https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/maxxam-fr-flame-retardant-polyolefin-formulations https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/maxxam-fr-flame-retardant-polyolefin-formulations https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-pultruded-rods-tubes-custom-profiles https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/glasforms-pultruded-rods-tubes-custom-profiles https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations/long-fiber-thermoplastics https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations/long-fiber-thermoplastics https://www.avient.com/products/thermoplastic-elastomers https://www.avient.com/products/polymer-colorants https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/lubrione-internally-lubricated-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/lubrione-internally-lubricated-formulations https://www.avient.com/products/advanced-composites/pultrusion-and-continuous-filament-winding-technology/advanced-composite-springs https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-scratch-mar-resistance-additives https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-scratch-mar-resistance-additives https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-antistatic-additives https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-antistatic-additives https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations/long-fiber https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations/long-fiber https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax-bergamid-polymer https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/nymax-bergamid-polymer https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/polymer-additives/foaming-agents/colormatrix-excelite-chemical-foaming-additives https://www.avient.com/products/engineered-polymer-formulations/structural-fiber-reinforced-formulations/long-fiber https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates https://www.avient.com/products/thermoplastic-elastomers https://www.avient.com/products/thermoplastic-elastomers

Regular engagement with these key stakeholders builds positive community relations, sets the expectation for open dialogue related to the effectiveness of our policy implementation, and assists with preparedness and collaboration in the event of an issue in our operations in that community.

Energy: o Diesel Fuel Consumption: 2,868,323 kWh o Natural Gas Fuel Consumption: 178,696,287 kWh o Renewable Energy Consumed - Self Generated (solar): 681,059 kWh o Renewable Energy Consumed - Self Generated (Wind): 2,385,048 kWh o Grid Electricity Consumed: 409,650,679 kWh o Renewable Energy Credits (REC) Purchased: 112,413,420 kWh o Renewable Electricity Consumed – Offsite: 138,415,253 kWh Page 2 Period covered by GHG emissions verification: • 2023年1月1日 to 2023年12月31日 Global Warming Potential (GWP) and emission factor data sets: • IPCC GWP: AR6 • USEPA Emission Factor Hub, released 2024 • USEPA eGRID, released 2024 • Final Rule (40 CFR 98) - Industrial Sector 2013 • DEFRA, released 2023 • IEA, released 2023 • European Residual Mix, released 2022 v2.0 GHG Reporting Protocols against which verification was conducted: • World Resources Institute (WRI)/World Business Council for Sustainable Development (WBCSD) Greenhouse Gas Protocol, Corporate Accounting and Reporting Standard, Revised Edition (Scope 1 and 2) and the GHG Protocol Scope 2 Guidance, an amendment to the GHG Protocol Corporate Standard • WRI/WBCSD Corporate Value Chain (Scope 3) Accounting and Reporting Standard Verification Protocols used to conduct the verification: • ISO 14064-3 Second Edition 2019-04: Greenhouse gases - Part 3: Specification with guidance for the verification and validation of greenhouse gas statements • Apex’s standard procedures and guidelines for external Assurance of Sustainability Reports and International Standard on Assurance Engagements (ISAE) 3000 Revised, Assurance Engagements Other than Audits or Reviews of Historical Financial Information (effective for assurance reports dated on or after Dec. 15, 2015), issued by the International Auditing and Assurance Standards Board.

Seller shall have the right to terminate an order confirmation with immediate effect if at any time prior to delivery, a person or group of persons who are unrelated to the persons controlling Buyer as of the date of the order confirmation, acquires control, through ownership of voting securities or otherwise, over Buyer. In the event of invalidity of a provision of these Terms, the parties shall deem that provision stricken in its entirety (i.e. pro non scripto) and the balance of these Terms shall remain in full force and effect or affecting the validity or enforceability of such provision in any other jurisdiction. 24. The expiration or termination of this Term shall not affect such of the provisions of these Terms which are expressly provided to operate after any such expiration or termination, or which of necessity must continue to have effect after such expiration or termination, notwithstanding that the relevant provisions themselves do not provide for this. 27.

Subject to compliance with the above mentioned quantity tolerance thresholds, the quantity delivered by Seller shall be deemed to be the quantity effectively ordered by Buyer. 13. SHORTAGE OF THE PRODUCT Unless otherwise prescribed under a pre-existing master agreement then in effect between Buyer and Seller, during periods when demand for the Product munkaerőhiány, energia, üzemanyag vagy nyersanyagok hiánya, (6) az Eladó üzemének rendes karbantartása miatti teljes vagy részleges leállás, (7) avagy bármely típusú más ok vagy okok, amelyek nyilvánvalóan a nem teljesítő fél ráhatásán kívül esnek, függetlenül attól, hogy hasonló vagy különböző formában jelennek meg, mint az itt felsorolt esetek („vis major”). Except in the case of a pre-existing master agreement in effect between Buyer and Seller, no statement or agreement, oral or written, made before or at the signing of the relevant purchase order(s) shall vary or modify the written terms hereof, and neither party shall claim any amendment, modification or release from any provision hereof unless such change occurs in a writing signed by the other party and specifically identifying it as an amendment to these Terms and Conditions.

Senior management believes these measures are useful to investors because they allow for comparison to PolyOne's performance in prior periods without the effect of items that, by their nature, tend to obscure PolyOne's operating results due to the potential variability across periods based on timing, frequency and magnitude. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. Reconciliation to Adjusted EPS Excluding Special Items and Impacts of February 2020 Equity Offering and May 2020 Debt Offering Three Months Ended 2020年6月30日 Net income from continuing operations attributable to Avient common shareholders $ 23.0 Special items, after tax(1) 2.6 After tax interest expense, net arising from equity offering and debt offering proceeds 4.1 Adjusted net income excluding special items and impact of interest expense, net arising from equity offering and debt offering proceeds $ 29.7 Diluted weighted-average shares used to compute earnings per common share 91.8 Weighted-average impact of 15.3 million shares issued in February 2020 equity offering (15.3) Diluted weighted-average shares excluding impact of shares issued in February 2020 equity offering 76.5 Adjusted EPS excluding special items and impact of equity offering and debt offering $ 0.39 (1) Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures, including adjustments related to contingent consideration; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to-market adjustments associated with actuarial gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, joint ventures and equity investments; gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non- recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results.