The EMEA region's organic revenues grew 5%, benefiting from share gains in packaging and continued strong demand for defense applications." 2024 Outlook "The year has continued to play out as we expected, and as we look at the fourth quarter, we are in a position to narrow our full-year guidance," said Jamie Beggs, Senior Vice President and Chief Financial Officer of Avient Corporation. This is due to the inherent difficulty of forecasting the timing and amount of certain items, such as, but not limited to, environmental remediation costs, mark-to-market adjustments associated with benefit plans, acquisition related costs, and other non-routine costs. 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

This translates to 6% adjusted EPS growth, excluding the impact of foreign exchange, and an encouraging start to the year, especially considering the outsized timing of defense orders that benefited the first quarter last year.” 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.

Nutritional components in dairy products are photosensitive, making them susceptible to light degradation • Light protection in dairy packaging helps maintain product integrity and extend shelf life A LIGHT BLOCKING SOLUTION THAT PROVIDES: • Light blocking and whiteness in PET dairy packaging • Protection from 2 weeks up to 12 months shelf life • Compatibility with monolayer and multilayer PET preforms • Full compatibility with rPET • Food contact approved (region dependent) • Low TiO₂ levels to increase recyclability, aligning with the emergence of white recycle streams PASTEURIZED MILK Typical shelf life 5–10 days WHITE COLOR LACTRA ESL LACTRA SX or LACTRA 4 EXTENDED SHELF LIFE MILK Typical shelf life 2 weeks–3 months UHT MILK & PRODUCTS Typical shelf life 4–12 months Lightweighting/CO2 reduction Reduced LDR – material & cost savings Improved processing performance BENEFITS OF COLORMATRIX™ LACTRA™ Improved bottle performance Compatibility with rPET Helps to Protect Performance Energy efficiency Whiteness 85–92 L* 30% less life cycle emissions Increased machinery life cycle due to reduced wear & tear 80–100% light blocking performance © 2024, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012

This is due to the inherent difficulty of forecasting the timing and amount of certain items, such as, but not limited to, mark-to-market adjustments associated with benefit plans, environmental remediation costs, acquisition-related costs, and other non-routine costs. GUIDANCE $800 $754 Guidance Actual $128 $123 Guidance Actual Sales Adjusted EBITDA (in millions) $0.56 $0.57 Guidance Actual Adjusted EPS (in millions) 13 • Demand impacted by destocking and cautious customer sentiment • Positive net price benefit: o CAI - Pricing flat and raw material deflation o SEM - Pricing flat with unfavorable mix related to healthcare, more than offset with raw material deflation • Cost reductions driven by Clariant synergies and reduced administrative costs Q3 EBITDA BRIDGE ($ millions) CAI: Price / Mix -) Deflation 22) SEM: Price / Mix (6) Deflation 13) Net Price Benefit 29) Cost Reductions 13) Wage Inflation (8) FX 1) Q3 2023 Actual $ 123) Adjusted EBITDA Q3 2022 Pro Forma $ 137) Demand (49) 14 2 0 2 3 G U I D A N C E Q4 2023 GUIDANCE VS. Three Months Ended September 30, 2023 Three Months Ended September 30, 2022 Reconciliation to Condensed Consolidated Statements of Income: $ EPS $ EPS Net income (loss) from continuing operations attributable to Avient shareholders $ 5.1 $ 0.06 $ (27.4) $ (0.30) Special items, after tax 32.0 0.35 68.3 0.75 Amortization expense, after-tax 15.2 0.16 $ 13.4 $ 0.14 Adjusted net income / EPS $ 52.3 $ 0.57 $ 54.3 $ 0.59 Three Months Ended September 30, Reconciliation to EBITDA and Adjusted EBITDA: 2023 2022 Sales - GAAP $ 753.7 $ 823.3 Pro Forma APM adjustments — 60.7 Pro forma adjusted sales $ 753.7 $ 884.0 Net income from continuing operations – GAAP $ 5.1 $ (27.8) Income tax (benefit) expense (0.1) (1.2) Interest expense, net 30.3 37.3 Depreciation and amortization 46.4 39.8 EBITDA from continuing operations $ 81.7 $ 48.1 Special items, before tax 43.2 82.0 Interest expense included in special items (2.2) (10.0) Depreciation and amortization included in special items — (0.8) Adjusted EBITDA $ 122.7 $ 119.3 Pro forma APM adjustments — 17.2 Pro forma adjusted EBITDA $ 122.7 $ 136.5 Pro forma adjusted EBITDA as a % of sales 16.3 % 15.4 % 1 Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2006 2018 Sales $ 2,622.4 $ 3,533.4 Net income from continuing operations – GAAP $ 133.5 $ 160.8 Income tax expense 29.7 36.4 Interest expense, net 63.1 62.8 Depreciation and amortization 57.1 91.5 EBITDA from continuing operations $ 283.4 $ 351.5 Special items, before tax (34.0) 59.5 Depreciation and amortization included in special items — (3.0) JV - equity income (107.0) — Adjusted EBITDA $ 142.4 $ 408.0 Adjusted EBITDA as a % of sales 5.4 % 11.5 % Reconciliation to EBITDA and Adjusted EBITDA: Three Months Ended December 31, 2022 Net loss from continuing operations – GAAP $ (16.6) Income tax benefit (60.8) Interest expense, net 49.4 Depreciation and amortization 48.6 EBITDA from continuing operations $ 20.6 Special items, before tax 104.3 Interest expense included in special items (16.0) Depreciation and amortization included in special items (1.5) Adjusted EBITDA $ 107.4 Reconciliation of Pro Forma Adjusted Earnings per Share: Three Months Ended December 31, 2022 Net loss from continuing operations attributable to Avient shareholders $ (17.0) Special items, after tax 38.3 Amortization expense, after-tax 14.6 Adjusted net income from continuing operations excluding special items 35.9 Pro forma adjustments* 2.5 Pro forma adjusted net income from continuing operations attributable to Avient shareholders $ 38.4 Weighted average diluted shares 91.7 Pro forma adjusted EPS - excluding special items pro forma for APM acquisition $ 0.42 * Pro forma adjustment to reflect APM results for the period before Avient ownership including the impacts of debt financing and paydown of debt with net proceeds from the Distribution sale. 2 AVNT November IR Presentation (11.3) 3PM Avient corporation�investor presentation DISCLAIMER Slide Number 3 Creating a world-class�sustainable organization Top-tier sustainability performance�and recognition What we do: We are a formulator Slide Number 7 Avient protective materials �First Year Slide Number 9 Slide Number 10 Slide Number 11 Slide Number 12 Slide Number 13 Slide Number 14 Slide Number 15 Slide Number 16 Slide Number 17 Slide Number 18 Slide Number 19 Slide Number 20 Slide Number 21 Slide Number 22 Slide Number 23 Slide Number 24 Slide Number 25 Avient is asset light Free cash flow conversion Multiple expansion Slide Number 29 Slide Number 30 Slide Number 31 2022 pro forma segment, end market and Geography Color, Additives & Inks Specialty Engineered Materials Slide Number 35 IR Deck - AVNT-2023.09.30 Non GAAP Recs Attachment

Europe and Asia regions benefited largely from restocking and share gains, particularly in the packaging end market." 2024 Outlook "Looking ahead to the third quarter, we expect adjusted EPS of $0.62, a 9% increase over the prior year," said Jamie Beggs, Senior Vice President and Chief Financial Officer of Avient Corporation. This is due to the inherent difficulty of forecasting the timing and amount of certain items, such as, but not limited to, environmental remediation costs, mark-to-market adjustments associated with benefit plans, acquisition related costs, and other non-routine costs. Three Months Ended June 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 33.6 $ 0.36 $ 22.1 $ 0.24 Special items, after-tax (Attachment 3) 21.8 0.24 19.6 0.21 Amortization expense, after-tax 14.8 0.16 16.2 0.18 Adjusted net income / EPS $ 70.2 $ 0.76 $ 57.9 $ 0.63 Six Months Ended June 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 83.0 $ 0.90 $ 42.9 $ 0.47 Special items, after-tax (Attachment 3) 27.3 0.30 41.9 0.46 Amortization expense, after-tax 29.7 0.32 31.3 0.34 Adjusted net income / EPS $ 140.0 $ 1.52 $ 116.1 $ 1.27 8 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Sales $ 849.7 $ 824.4 $ 1,678.7 $ 1,670.1 Cost of sales 592.1 583.7 1,142.9 1,181.8 Gross margin 257.6 240.7 535.8 488.3 Selling and administrative expense 185.1 178.4 369.3 368.9 Operating income 72.5 62.3 166.5 119.4 Interest expense, net (26.6) (29.4) (53.2) (58.2) Other (expense) income, net (0.9) (0.2) (1.8) 0.5 Income from continuing operations before income taxes 45.0 32.7 111.5 61.7 Income tax expense (11.2) (10.4) (28.0) (18.1) Net income from continuing operations 33.8 22.3 83.5 43.6 Loss from discontinued operations, net of income taxes — — — (0.9) Net income $ 33.8 $ 22.3 $ 83.5 $ 42.7 Net income attributable to noncontrolling interests (0.2) (0.2) (0.5) (0.7) Net income attributable to Avient common shareholders $ 33.6 $ 22.1 $ 83.0 $ 42.0 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.37 $ 0.24 $ 0.91 $ 0.47 Discontinued operations — — — (0.01) Total $ 0.37 $ 0.24 $ 0.91 $ 0.46 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.36 $ 0.24 $ 0.90 $ 0.47 Discontinued operations — — — (0.01) Total $ 0.36 $ 0.24 $ 0.90 $ 0.46 Cash dividends declared per share of common stock $ 0.2575 $ 0.2475 $ 0.5150 $ 0.4950 Weighted-average shares used to compute earnings per common share: Basic 91.3 91.1 91.3 91.1 Diluted 92.2 91.9 92.0 91.9 9 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Cost of sales: Restructuring costs, including accelerated depreciation $ 0.2 $ (1.2) $ 3.8 $ (7.8) Environmental remediation costs (21.8) (13.0) (25.8) (14.4) Impact on cost of sales (21.6) (14.2) (22.0) (22.2) Selling and administrative expense: Restructuring and employee separation costs (2.8) (0.5) (3.5) (11.9) Legal and other (2.3) (6.4) (5.8) (10.6) Acquisition related costs (0.5) (0.7) (2.1) (4.2) Impact on selling and administrative expense (5.6) (7.6) (11.4) (26.7) Impact on operating income (27.2) (21.8) (33.4) (48.9) Interest expense, net - financing costs (1.0) — (1.0) — Other income (loss) 0.1 0.1 0.1 (0.1) Impact on income from continuing operations before income taxes (28.1) (21.7) (34.3) (49.0) Income tax benefit on above special items 7.0 5.5 8.4 12.4 Tax adjustments(2) (0.7) (3.4) (1.4) (5.3) Impact of special items on net income from continuing operations $ (21.8) $ (19.6) $ (27.3) $ (41.9) Diluted earnings per common share impact $ (0.24) $ (0.21) $ (0.30) $ (0.46) Weighted average shares used to compute adjusted earnings per share: Diluted 92.2 91.9 92.0 91.9 (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

This is due to the inherent difficulty of forecasting the timing and amount of certain items, such as, but not limited to, environmental remediation costs, mark-to-market adjustments associated with benefit plans, acquisition related costs, and other non-routine costs. Income tax benefit on above special items Pension and other post-retirement benefits

Product description, value solution, key characteristics, target market, applications and technology benefits of ColorMatrix™ Lactra™ SX Light Blocking Additive for PET (Chinese language version) Product description, value solution, key characteristics, target market, applications and technology benefits of ColorMatrix™ Lactra™ SX Light Blocking Additive for PET (English language version) Product description, value solution, key characteristics, target market, applications and technology benefits of ColorMatrix™ Lactra™ SX Light Blocking Additive for PET (Spanish language version)

She has global responsibility for the Human Resources function, including performance management, succession planning, compensation, benefits administration, recruiting, labor relations, and talent development.

She has global responsibility for the Human Resources function, including performance management, succession planning, compensation, benefits administration, recruiting, labor relations, and talent development.

APPLICATIONS • Consumer products such as sporting goods, toys, boxes, pet accessories • Packaging bottles, containers and closures • Appliances, electronics and electrical housings • Automotive interior and exterior trim components BENEFITS • Includes a wide range of special effects for increased visual impact and differentiation • Eliminates the need for secondary processing like painting or decorating • Can be combined with performance additives into Smartbatch™ solutions for convenience Copyright © 2024, Avient Corporation.