Organic sales grew in all geographic regions with the U.S. and Canada growing at 6%, EMEA at 1%, Asia at 7% and Latin America at 14%.” 2 Commenting on full year 2024 results, Dr. Three Months Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 48.3 $ 0.52 $ 27.8 $ 0.30 Special items, after-tax (Attachment 3) (18.0) (0.20) 5.4 0.06 Amortization expense, after-tax 14.8 0.17 15.0 0.16 Adjusted net income / EPS $ 45.1 $ 0.49 $ 48.2 $ 0.52 (1) Per share amounts may not recalculate from figures presented herein due to rounding Year Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 169.5 $ 1.84 $ 75.8 $ 0.83 Special items, after-tax (Attachment 3) 15.9 0.17 79.3 0.86 Amortization expense, after-tax 59.5 0.65 61.5 0.67 Adjusted net income / EPS $ 244.9 $ 2.66 $ 216.6 $ 2.36 (1) Per share amounts may not recalculate from figures presented herein due to rounding 8 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended December 31, Year Ended December 31, 2024 2023 2024 2023 Sales $ 746.5 $ 719.0 $ 3,240.4 $ 3,142.8 Cost of sales 487.0 510.1 2,183.7 2,250.3 Gross margin 259.5 208.9 1,056.7 892.5 Selling and administrative expense 173.9 165.8 727.4 695.7 Operating income 85.6 43.1 329.3 196.8 Interest expense, net (25.5) (26.8) (105.6) (115.3) Other income, net 3.2 4.3 1.1 5.8 Income from continuing operations before income taxes 63.3 20.6 224.8 87.3 Income tax (expense) benefit (14.8) 7.0 (54.1) (11.0) Net income from continuing operations 48.5 27.6 170.7 76.3 Income (loss) from discontinued operations, net of income taxes — 0.8 — (0.1) Net income 48.5 28.4 170.7 76.2 Net (income) loss attributable to noncontrolling interests (0.2) 0.2 (1.2) (0.5) Net income attributable to Avient common shareholders $ 48.3 $ 28.6 $ 169.5 $ 75.7 Earnings per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.53 $ 0.30 $ 1.86 $ 0.83 Discontinued operations — 0.01 — — Total $ 0.53 $ 0.31 $ 1.86 $ 0.83 Earnings per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.52 $ 0.30 $ 1.84 $ 0.83 Discontinued operations — 0.01 — — Total $ 0.52 $ 0.31 $ 1.84 $ 0.83 Cash dividends declared per share of common stock $ 0.2700 $ 0.2575 $ 1.0425 $ 1.0000 Weighted-average shares used to compute earnings per common share: Basic 91.4 91.2 91.3 91.1 Diluted 92.2 91.9 92.0 91.8 9 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended December 31, Year Ended December 31, 2024 2023 2024 2023 Cost of sales: Restructuring costs, including accelerated depreciation $ (4.6) $ (2.0) $ 1.0 $ (11.9) Environmental remediation costs (6.8) (17.2) (35.0) (69.7) Reimbursement of previously incurred environmental costs 34.7 1.6 34.7 1.6 Impact on cost of sales 23.3 (17.6) 0.7 (80.0) Selling and administrative expense: Restructuring and employee separation costs (2.6) (1.1) (9.2) (14.9) Legal and other (0.3) (6.1) (10.4) (15.2) Acquisition related costs — (1.3) (2.5) (5.9) Impact on selling and administrative expense (2.9) (8.5) (22.1) (36.0) Impact on operating income 20.4 (26.1) (21.4) (116.0) Interest expense, net - financing costs — (0.1) (2.3) (2.3) Pension and post retirement mark-to-market adjustments and other 3.5 3.8 3.6 3.7 Impact on other income, net 3.5 3.8 3.6 3.7 Impact on income from continuing operations before income taxes 23.9 (22.4) (20.1) (114.6) Income tax (expense) benefit on above special items (5.8) 4.5 6.1 27.7 Tax adjustments(2) (0.1) 12.5 (1.9) 7.6 Impact of special items on net income from continuing operations $ 18.0 $ (5.4) $ (15.9) $ (79.3) Diluted earnings per common share impact $ 0.20 $ (0.06) $ (0.17) $ (0.86) Weighted average shares used to compute adjusted earnings per share: Diluted 92.2 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 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. 10 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (Unaudited) (In millions) Year Ended December 31, 2024 2023 ASSETS Current assets: Cash and cash equivalents $ 544.5 $ 545.8 Accounts receivable, net 399.5 399.9 Inventories, net 346.8 347.0 Other current assets 131.3 114.9 Total current assets 1,422.1 1,407.6 Property, net 955.3 1,028.9 Goodwill 1,659.7 1,719.3 Intangible assets, net 1,450.4 1,590.8 Operating lease assets, net 89.1 65.3 Deferred income tax assets 81.3 92.3 Other non-current assets 153.2 64.3 Total assets $ 5,811.1 $ 5,968.5 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 7.7 $ 9.5 Accounts payable 417.4 432.3 Accrued expenses and other current liabilities 331.0 331.8 Total current liabilities 756.1 773.6 Non-current liabilities: Long-term debt 2,059.3 2,070.5 Deferred income taxes 260.4 281.6 Other non-current liabilities 405.7 504.8 Total non-current liabilities 2,725.4 2,856.9 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,313.8 2,319.2 Noncontrolling interest 15.8 18.8 Total equity 2,329.6 2,338.0 Total liabilities and equity $ 5,811.1 $ 5,968.5 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Year Ended December 31, 2024 2023 Operating activities Net income $ 170.7 $ 76.2 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 179.7 188.8 Increase in environmental insurance receivable (34.0) — Deferred income tax benefit (23.8) (61.3) Share-based compensation expense 15.4 13.2 Changes in assets and liabilities, net of the effect of acquisitions: (Increase) decrease in accounts receivable (15.2) 38.6 (Increase) decrease in inventories (13.7) 24.3 Increase (decrease) in accounts payable 0.3 (22.2) Decrease in pension, retirement benefits and deferred compensation (34.3) (8.7) Taxes paid on gain on sale of business — (104.1) (Decrease) increase in environmental obligations (11.2) 38.9 Accrued expenses and other assets and liabilities, net 22.9 17.9 Net cash provided by operating activities 256.8 201.6 Investing activities Capital expenditures (121.9) (119.4) Net proceeds from divestiture — 7.3 Proceeds from plant closures 3.4 7.6 Other investing activities (2.1) 10.3 Net cash used by investing activities (120.6) (94.2) Financing activities Proceeds from long-term borrowings 650.0 — Payments on long-term borrowings (660.9) (105.8) Cash dividends paid (94.0) (90.2) Payments on withholding tax on share awards (6.4) (3.4) Debt financing costs (9.6) (2.3) Net cash used by financing activities (120.9) (201.7) Effect of exchange rate changes on cash (16.6) (1.0) Decrease in cash and cash equivalents (1.3) (95.3) Cash and cash equivalents at beginning of year 545.8 641.1 Cash and cash equivalents at end of year $ 544.5 $ 545.8 12 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.

TECHNICAL BULLETIN 1.844.4AVIENT www.avient.com PROPERTY TEST METHOD UNITS VERSAFLEX™ CE 3130-80N VERSAFLEX™ CE 3130-70N Shore Hardness ASTM D2240 Shore A 79 69 Specific Gravity ASTM D792 g/cm3 1.08 1.04 Tensile Strength ASTM D412 psi 2,484 2,222 Melting Flow Index (190°C, 21.6kg) ASTM D1238 g/10min 5.2 4.4 Elongation ASTM D412 % 864 667 Flexural Modulus @ 300% ASTM D790 psi 975 855 Viscosity @ 11,170 sec, 200°C ASTM D3835 Pa.s 30.6 22.2 Abrasion (Mass Lost) ASTM D3389 mg 1.1 2.6 UV Resistance 0.68W/m2 45°C 168hours — Good Good Stain Resistance *Condition 1 *Condition 2 — Excellent Excellent Blooming 85% RH 30°C,168 hours — Non Non Processing (Demold) — — Excellent Good Cycle Time — — Short Middle Overmold Substrate — — PC/ABS PC/ABS KEY PROPERTIES AND OVERMOLD PERFORMANCE Copyright © 2021, Avient Corporation. TEST METHODS Stain Test - Condition 1: Tea, coffee, ketchup, mustard stand on the surface for 2 minutes at room temperature, then removed to observe the surface performance. Condition 2: Sunblock and hand cream stand on the surface for 24 hours at 50°C, then removed to observe the surface performance.

This will require a massive investment and deployment of smaller antennas and fiber optic cables strategically placed close together to deliver its intended performance," said High-frequency 5G networks rely on the densification of transmission antennae, resulting in an increased number of fiber optic cables and components capable of performing in harsh conditions.  provides specialty materials in applications such as fiber optic cables, antennas, base stations, resonators, lenses, automotive radar, IoT devices, routers, and modems.

Wire & cable manufacturer WIRE & CABLE MANUFACTURER A E R O N A U T I C D A T A T R A N S M I S S I O N C A B L E S • Permanent contrast marking meeting aerospace industry standards SAE AS4373F and EN-3475-706 • Benign marking that, compared to infrared (IR) laser marking, will not damage the jacket surface • Elevated temperature performance in corrosive environments, maintaining dielectric properties under continuous service • No vital optical fiber or data transmission cable interference • Demonstrated fluorinated ethylene propylene (FEP) application expertise incorporating laser marks • Provided formulation expertise in PTFE alternatives • Delivered a high-quality product with no clumping during the extrusion process • Offered a proven array of specific aeronautic colors • Provided commercial, technical, and operational support KEY REQUIREMENTS APPEARANCE + PERFORMANCE WHY AVIENT? All Rights Reserved https://www.avient.com/products/polymer-additives/laser-marking-additives/colorant-chromatics-uv-laser-marking-technology Wire & cable manufacturer

OnColor™ Colorants for Wire & Cable OnColor™ for Wire & Cable Ripcords for Fiber Optic Cable

Syncure™ XLPE Cross-linkable Polyethylene Formulations FOR LOW VOLTAGE CABLES PRODUCT SELECTION GUIDE Syncure™ XLPE MOISTURE CROSS-LINKABLE POLYETHYLENE INSULATION FOR LOW VOLTAGE CABLE SYSTEMS SYSTEM S100FH S100FH-XUV S100FH-UV S100FV S100FV-UV S112NA S120NA S200FH S200FV Applications Building Wire, Tray Cable Building Wire, Tray Cable Photo-Voltaic (PV) Wire Building Wire, Tray Cable Building Wire, Tray Cable Building Wire, Teck-90 Pipe and Tube Building Wire, Tray Cable, Service Entrance Building Wire, Tray Cable, Service Entrance Specification UL 44 UL 44 UL 44, UL 4703 UL 44 UL 44 CSA 22.2 Suitable for NSF 61 UL 44 UL 44 Wire Type XHHW-2, RHW-2, USE-2, SIS XHHW-2, RHW-2, USE-2, SIS XHHW-2, RHW-2, USE-2, SIS, PV XHHW-2, RHW-2, SIS XHHW-2, RHW-2, USE-2, SIS, PV RW-90, Teck-90 – RHW-2, RHW, RHH, XHHW-2, XHH, XHHW, SIS RHW, RHH, RHW-2 Components % 83% S1054A 17% V0022G RoHS 83% S1054A 17% V0022G-UV RoHS 70% S1054A 30% V0022G-UV RoHS 50% S1054A 50% V0044G RoHS 50% S1054A 50% V0044G-UV RoHS 95% S1054A 5% S1000B 95% S1016A 5% S1037B 78% S1054A 22% SC5400-0002 RoHS MB ALT FR 50% S1054A 50% SC5400-0003 RoHS MB ALT FR Features Horizontal Flame Horizontal Flame, UV Resistant, Colors Possible Horizontal Flame, FV-1 Flame, UV Resistant, Colors Possible VW-1 VW-1, UV Resistant, Colors Possible Non-FR Rigid Pipe Applications Horizontal Flame, DBDPE-free VW-1, DBDPE-free GENERAL PROPERTIES Specific Gravity 1.01 1.02 1.10 1.31 1.31 0.92 0.95 1.01 1.31 Hardness Shore D, 10 Seconds 47 47 47 48 48 47 59 47 48 Gel 68 68 70 70 70 72 72 68 70 TENSILE PROPERTIES Tensile Strength (psi) 2800 2500 2650 3200 2650 2800 4500 2800 3200 Elongation % 400 400 540 470 540 400 80 400 470 Tensile Retention % 100 100 97 110 110 95 75 95 100 Elongation Retention % 90 90 94 100 100 90 75 90 93 ELECTRICAL Dielectric Strength (V/mil) 1000 1400 1400 1200 1200 1000 – 1000 1200 Dielectric Constant 2.31 2.45 2.61 2.61 2.61 2.24 2.1 2.31 2.61 Dissipation Factor % 0.0012 0.0080 0.008 0.0043 0.0043 0.0008 0.002 0.0012 0.0043 THERMAL Temperature Rating °C 90 90 90 90 90 90 125 90 90 Heat Deformation % 10 5 5 5 5 10 10 10 5 The Syncure™ XLPE portfolio is a two-step, silane- grafted, moisture cross-linkable polyethylene system.

Avient offers a full range of material solutions that enable renewable energy infrastructure, from high performance ropes or structural composites for wind energy infrastructure to materials for cable jacketing and insulation in solar installations. Additionally, protective cable insulation and jacketing can be made from ECCOH™ Low Smoke and Fume, Non-Halogen Formulation

Coaxial Signal Cable Jacket Maxxam™ Polyolefin Formulations provided excellent performance with low dielectric constant to make the jacket layer of signal cables have low capacitance loss

Avient Wire & Cable Industry Bulletin Overview of how Avient serves wire & cable customers, highlighting both power and data cables technologies Colorants and Additives for Wire & Cable