Three Months Ended September 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 38.2 $ 0.41 $ 5.1 $ 0.06 Special items, after-tax (Attachment 3) 6.6 0.07 32.0 0.35 Amortization expense, after-tax 15.0 0.16 15.2 0.16 Adjusted net income / EPS $ 59.8 $ 0.65 $ 52.3 $ 0.57 (1) Per share amounts may not recalculate from figures presented herein due to rounding Nine Months Ended September 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 121.2 $ 1.32 $ 48.0 $ 0.52 Special items, after-tax (Attachment 3) 33.9 0.37 73.9 0.81 Amortization expense, after-tax 44.7 0.49 46.5 0.51 Adjusted net income / EPS $ 199.8 $ 2.17 $ 168.4 $ 1.84 (1) Per share amounts may not recalculate from figures presented herein due to rounding 7 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Sales $ 815.2 $ 753.7 $ 2,493.9 $ 2,423.8 Cost of sales 553.8 558.4 1,696.7 1,740.2 Gross margin 261.4 195.3 797.2 683.6 Selling and administrative expense 184.2 161.0 553.5 529.9 Operating income 77.2 34.3 243.7 153.7 Interest expense, net (26.9) (30.3) (80.1) (88.5) Other (expense) income, net (0.3) 1.0 (2.1) 1.5 Income from continuing operations before income taxes 50.0 5.0 161.5 66.7 Income tax (expense) benefit (11.3) 0.1 (39.3) (18.0) Net income from continuing operations 38.7 5.1 122.2 48.7 Loss from discontinued operations, net of income taxes — — — (0.9) Net income $ 38.7 $ 5.1 $ 122.2 $ 47.8 Net income attributable to noncontrolling interests (0.5) — (1.0) (0.7) Net income attributable to Avient common shareholders $ 38.2 $ 5.1 $ 121.2 $ 47.1 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.42 $ 0.06 $ 1.33 $ 0.53 Discontinued operations — — — (0.01) Total $ 0.42 $ 0.06 $ 1.33 $ 0.52 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.41 $ 0.06 $ 1.32 $ 0.52 Discontinued operations — — — (0.01) Total $ 0.41 $ 0.06 $ 1.32 $ 0.51 Cash dividends declared per share of common stock $ 0.2575 $ 0.2475 $ 0.7725 $ 0.7425 Weighted-average shares used to compute earnings per common share: Basic 91.3 91.1 91.3 91.1 Diluted 92.3 91.9 92.0 91.8 8 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended September 30, Nine Months Ended September 30, 2024 2023 2024 2023 Cost of sales: Restructuring costs, including accelerated depreciation $ 1.8 $ (2.1) $ 5.6 $ (9.9) Environmental remediation costs (2.4) (38.1) (28.2) (52.5) Impact on cost of sales (0.6) (40.2) (22.6) (62.4) Selling and administrative expense: Restructuring and employee separation costs (3.1) (2.0) (6.6) (13.8) Legal and other (4.3) 1.7 (10.1) (9.1) Acquisition related costs (0.4) (0.5) (2.5) (4.6) Impact on selling and administrative expense (7.8) (0.8) (19.2) (27.5) Impact on operating income (8.4) (41.0) (41.8) (89.9) Interest expense, net - financing costs (1.3) (2.2) (2.3) (2.2) Other income (loss) — — 0.1 (0.1) Impact on income from continuing operations before income taxes (9.7) (43.2) (44.0) (92.2) Income tax benefit on special items 3.5 10.8 11.9 23.2 Tax adjustments(2) (0.4) 0.4 (1.8) (4.9) Impact of special items on net income from continuing operations $ (6.6) $ (32.0) $ (33.9) $ (73.9) Diluted earnings per common share impact $ (0.07) $ (0.35) $ (0.37) $ (0.81) Weighted average shares used to compute adjusted earnings per share: Diluted 92.3 91.9 92.0 91.8 (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; 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 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, 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. (2) Tax adjustments include the net tax impact from non-recurring income tax items and certain adjustments to uncertain tax position reserves and valuation allowances. 9 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) September 30, 2024 December 31, 2023 ASSETS Current assets: Cash and cash equivalents $ 505.7 $ 545.8 Accounts receivable, net 465.1 399.9 Inventories, net 377.8 347.0 Other current assets 108.8 114.9 Total current assets 1,457.4 1,407.6 Property, net 973.5 1,028.9 Goodwill 1,716.8 1,719.3 Intangible assets, net 1,542.5 1,590.8 Deferred income taxes 133.1 92.3 Other non-current assets 224.0 129.6 Total assets $ 6,047.3 $ 5,968.5 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 7.8 $ 9.5 Accounts payable 425.9 432.3 Accrued expenses and other current liabilities 460.8 331.8 Total current liabilities 894.5 773.6 Non-current liabilities: Long-term debt 2,059.9 2,070.5 Pension and other post-retirement benefits 63.7 67.2 Deferred income taxes 289.1 281.6 Other non-current liabilities 359.9 437.6 Total non-current liabilities 2,772.6 2,856.9 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,363.0 2,319.2 Noncontrolling interest 17.2 18.8 Total equity 2,380.2 2,338.0 Total liabilities and equity $ 6,047.3 $ 5,968.5 10 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Nine Months Ended September 30, 2024 2023 Operating activities Net income $ 122.2 $ 47.8 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 133.1 142.6 Accelerated depreciation 1.2 1.9 Share-based compensation expense 12.5 9.7 Changes in assets and liabilities: Increase in accounts receivable (65.7) (5.7) (Increase) decrease in inventories (30.2) 16.5 Decrease in accounts payable (5.7) (59.1) Taxes paid on gain on sale of business — (104.1) Accrued expenses and other assets and liabilities, net (33.2) (2.5) Net cash provided by operating activities 134.2 47.1 Investing activities Capital expenditures (80.8) (75.0) Net proceeds from divestiture — 7.3 Proceeds from plant closures 3.4 — Other investing activities (2.1) 2.3 Net cash used by investing activities (79.5) (65.4) Financing activities Proceeds from long-term borrowings 650.0 — Payments on long-term borrowings (659.1) (103.8) Cash dividends paid (70.5) (67.6) Debt financing costs (9.6) (2.3) Other financing activities (4.6) (2.3) Net cash used by financing activities (93.8) (176.0) Effect of exchange rate changes on cash (1.0) (7.2) Decrease in cash and cash equivalents (40.1) (201.5) Cash and cash equivalents at beginning of year 545.8 641.1 Cash and cash equivalents at end of period $ 505.7 $ 439.6 11 Attachment 6 Avient Corporation Business Segment Operations (Unaudited) (In millions) Operating income and earnings before interest, taxes, depreciation and amortization (EBITDA) at the segment level does not include: special items as defined in Attachment 3; corporate general and administration costs that are not allocated to segments; intersegment sales and profit eliminations; share-based compensation costs; and certain other items that are not included in the measure of segment profit and loss that is reported to and reviewed by the chief operating decision maker.

Requirements: High density injection molded plastic for weighting and balancing and noise isolation from spring mechanism Solution: Trilliant™ Gravi-Tech™ Density Modified Formulations 7 Soft touch grip 8 Weighted shell Color, Material & Finish Differentiate the same base injector for multiple price points, medications, or even licensing opportunities with body and grip material, color and texture. • Design conceptualization and rendering services can help bring your vision to life and embody your brand • Recommendations on overmolding and texture will optimize your production and performance Avient Corporation 7 Dampener 11 Stopper 12 9 Plunger 10 Avient Corporation 8 Internal Mechanical Performance Performance and reliability are vital when designing for more effective treatments and better patient outcomes.

COLOR, MATERIAL & FINISH DESIGN SERVICE FIVE WAYS TO BRING CLARITY TO COLOR, MATERIAL & FINISH SELECTION D E M Y S T I F Y I N G C M F FINDING THE RIGHT BALANCE BETWEEN LOOK, FEEL AND FUNCTION IS IMPORTANT BUT CHALLENGING NEARLY 90% OF ALL PURCHASE DECISIONS ARE MADE SUBCONSCIOUSLY.

The Compensation Committee and management annually review and consider tally sheets, which are developed by our human resources department to provide greater context for the compensation of our Named Executive Officers. The tally sheets provide information regarding each Named Executive Officerʼs base salary, annual incentives, and long-term incentives, and are reviewed by the Consultant. Name Aggregate Balance at 12/31/2020(1) ($) Executive Contributions in Last FY(2) ($) Registrant Contributions in Last FY(3) ($) Aggregate Earnings in Last FY(4) ($) Aggregate Withdrawals/ Distributions ($) Aggregate Balance at Last FYE(1)(5) ($) R.M.

Within the limits of Article 5, Seller warrants good and clear title in goods subject to the sale and that the Product conforms at the time of shipment to a Certificate of Analysis, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”). Buyer acknowledges that information in Seller’s marketing materials, technical data sheets and other descriptive publications distributed or published on its websites may vary from time to time without notice. Buyer acknowledges that Seller has furnished to Buyer Safety Data Sheets, which include warnings together with safety and health information concerning the Product and/or the containers for such Product.

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.

• 10 standard colors • All colors are heavy metal-free • Special color matches can be done upon request using Pantone® or RAL color standards • Customized pigment loadings can be provided to address specialized coloration needs • Functional additives can be provided to address tailored properties Let-down ratios and specific processing suggestions are provided in the product data sheet available from your Avient representative. OUR CUSTOMER SUPPORT ACTIVITIES INCLUDE: • Food and Drug Administration (FDA) compliance support • Compliance with National Inventories • Biocompatibility compliance • REACH – European Legislation on Registration, Evaluation, Authorization and Restriction of Chemicals • Restriction on Hazardous Substances (RoHS) and Waste Electrical and Electronic Equipment (WEEE) electronics compliance • Data entry into the International Material Database System (IMDS) • Hazardous communication, including safety data sheets (SDS) and labeling GENERATING REGULATORY COMPLIANCE DOCUMENTATION INCLUDING: • California Proposition 65 • European Food Contact • Individual Customer Restricted Substance lists • Drug Master Files • Medical Application Files • Food and Drug Administration Certification • Potable Water Certification Contact us if you have questions or for specific information on your application’s regulatory compliance requirements.

The other commercially available TPE’s were processed as per the recommendations made in their respective data sheets. B-TPE-65A B-TPV-55A B-TPE-35A B-TPE-50A B-TPV-55A B-TPV-70A Cycoloy C2950 (PC/ABS) 12.8 8.1 10.4 15.1 Cycolac T1000 (ABS) 10.2 9.1 9 12.4 Lexane 141 (PC) 11.7 10.2 8.1 15 Zytel 7331F (PA6) 7.2 8.8 Zytel 73G33L (33% GF PA6) 8.1 8.2 Zytel 101L (PA66) 6.8 7.2 All TPE’s processed at the recommended conditions from their respective data sheets.

While our second quarter is seasonally our strongest, we expect to deliver strong year-over-year double-digit EPS expansion for the balance of 2014. Condensed Consolidated Balance Sheets

DESIGN & PROCESSING Material flexibility and customization, extrusion and molding optimization techniques SOLUTION: Advanced polymer science, application development, technical service VISUAL AESTHETICS Custom colors, deep shades, special effects SOLUTION: Metallic colorants, granite & woodgrain effects DURABILITY Wind & impact resistance, chemical resistance, weatherability SOLUTION: Scratch & mar resistant or IR/UV resistant additives, dimensional stabilizers TECHNOLOGY DESCRIPTION TYPICAL APPLICATIONS Antimicrobial Additives Antimicrobial technology to limit microbe growth— reduces bacterial, mold and fungal growth on surface and through thickness, protecting finished part • Potable water equipment • Roofs & eaves • Decking, fencing & railings • High-touch surfaces • Bath surrounds, liners & inserts Scratch & Mar Resistance Additives For applications requiring resistance to daily surface abrasion, and management of surface energy • Exterior fencing, decking, railings & shutters • Outdoor furniture • Playground equipment Flame Retardant Additives Reduces spread of fire and heat release by creating a char to limit oxygen at the flame source • Wire & cable • Telecommunications • Decking, fencing & railings • Conduit • Exterior siding & cladding • Housings UV and Light Blocking Additives UV stabilizers help mitigate the harmful effects of UV radiation while light blocking additives protect products sensitive to light • Exterior siding & cladding • Trim & moldings • Roofing, shingles, tiles • Outdoor furniture • Fencing, decking, railings & shutters Anti-static and Conductive Additives Controls build-up of static charges to create static-dissipated parts while reducing related dust accumulation • Electrical connectors • Conduit or tubing • Junction boxes • Flooring • 5G enabling Chemical Foaming Agents Reduces weight and density without compromising mechanical properties • Exterior siding & cladding • Modular panels • Decking, fencing & railings Optimization Additives Cycle-time reducers that help optimize production while allowing improved dimensional stability and energy efficiency, among other processing benefits • Used in extrusion and injection molding processes to improve thermal conductivity, and lower processing temperatures and energy consumption Laser Marking Supports design and production flexibility and offers a new level of control in marking polymers with speed and clarity • Wire & cable • Outdoor furniture • Equipment & housings • Pipes & fittings Anti-counterfeiting Additives Customizable in-plastic authentication technologies that enable positive identification versus counterfeit products • Wire & cable jacketing • Pipes & fittings • Telecommunications • Potable water equipment Wood Plastic Composite (WPC) Capstock Technology Pair with traditional WPC materials as a substrate for a durable outer layer • Exterior siding & cladding • Outdoor furniture • Fencing, decking & railings Sustainable Colorants & Additives Color concentrates and additives carefully chosen to meet industry requirements and legislation, and designed to lower environmental impact while improving sustainability • Green building roofing • OSHA compliance • Sheet & profile extrusions • LEED building & material credits FX Special Effects Colorants Granite, marbling, woodgrain and other distinctive colorant technologies to provide special surface effects • Decorative molding • Chair or hand rails • Wallcovering • Blinds & shutters • Any surface or part demanding a distinctive look Pool Colorants Durable, long-lasting pigment formulations for finishes that hold up to pool water chemistries • Pool decks • Coping • In-ground swimming pools Metallic Flooring & Stain Colorants Colorants designed to give concrete floors and surfaces a distinctive appearance • Concrete flooring • Countertops • Decorative concrete • Walls While this listing represents many Avient solutions and addresses common applications, we can tackle many other building & construction needs.