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Microsoft PowerPoint - AVNT Q1 2024 Investor Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) M A Y 2 0 2 4 D I S C L A I M E R Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. When showing constant dollar figures on GAAP and non-GAAP financial measures, the foreign exchange impact is calculated by using current foreign exchange rates and applying them to the prior period results. FX -1.5% FX -0.5% Total Avient -2.0% Q 1 2 0 2 4 R E S U L T S Q1 2024 PERFORMANCE VS.

We are focused on executing what we can influence, which includes staying close to our customers, winning share and new business, proactively working to offset raw material or tariff-related inflation, controlling our costs and strengthening our balance sheet. Three Months Ended March 31, 2025 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net (loss) income attributable to Avient common shareholders $ (20.2) $ (0.22) $ 49.4 $ 0.54 Special items, after-tax (Attachment 3) 75.7 0.82 5.5 0.06 Amortization expense, after-tax 14.5 0.16 14.9 0.16 Adjusted net income / EPS $ 70.0 $ 0.76 $ 69.8 $ 0.76 (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 March 31, 2025 2024 Sales $ 826.6 $ 829.0 Cost of sales 563.4 550.8 Gross margin 263.2 278.2 Selling and administrative expense 262.5 184.2 Operating income 0.7 94.0 Interest expense, net (26.9) (26.6) Other expense, net (0.4) (0.9) (Loss) income before income taxes (26.6) 66.5 Income tax benefit (expense) 6.7 (16.8) Net (loss) income $ (19.9) $ 49.7 Net income attributable to noncontrolling interests (0.3) (0.3) Net (loss) income attributable to Avient common shareholders $ (20.2) $ 49.4 (Loss) earnings per share attributable to Avient common shareholders - Basic: $ (0.22) $ 0.54 (Loss) earnings per share attributable to Avient common shareholders - Diluted: $ (0.22) $ 0.54 Cash dividends declared per share of common stock $ 0.2700 $ 0.2575 Weighted-average shares used to compute (loss) earnings per common share: Basic 91.5 91.2 Diluted 91.5 92.0 8 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended March 31, 2025 2024 Cost of sales: Restructuring costs, including accelerated depreciation $ (4.1) $ 3.6 Environmental remediation costs (4.9) (4.0) Reimbursement of previously incurred environmental costs 1.3 — Impact on cost of sales (7.7) (0.4) Selling and administrative expense: Restructuring and employee separation costs (5.1) (0.7) Legal and other (0.4) (3.5) Cloud-based enterprise resource planning system impairment (86.3) — Acquisition related costs — (1.6) Impact on selling and administrative expense (91.8) (5.8) Impact on operating income (99.5) (6.2) Interest expense, net - financing costs (1.7) — Impact on (loss) income before income taxes (101.2) (6.2) Income tax benefit on special items 25.5 1.4 Tax adjustments(2) — (0.7) Impact of special items on net (loss) income $ (75.7) $ (5.5) Diluted (loss) earnings per common share impact $ (0.82) $ (0.06) Weighted average shares used to compute adjusted earnings per share: Diluted 91.8 92.0 (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 Three Months Ended March 31, Reconciliation to Consolidated Statements of Income 2025 2024 Sales $ 826.6 $ 829.0 Gross margin - GAAP 263.2 278.2 Special items in gross margin (Attachment 3) 7.7 0.4 Adjusted gross margin $ 270.9 $ 278.6 Adjusted gross margin as a percent of sales 32.8 % 33.6 % Operating income - GAAP 0.7 94.0 Special items in operating income (Attachment 3) 99.5 6.2 Adjusted operating income $ 100.2 $ 100.2 Adjusted operating income as a percent of sales 12.1 % 12.1 % Three Months Ended March 31, Reconciliation to EBITDA and Adjusted EBITDA: 2025 2024 Net (loss) income – GAAP $ (19.9) $ 49.7 Income tax (benefit) expense (6.7) 16.8 Interest expense, net 26.9 26.6 Depreciation & amortization 45.3 44.3 EBITDA $ 45.6 $ 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) — Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA $ 144.7 $ 143.1 Adjusted EBITDA as a percent of sales 17.5 % 17.3 % 13 Year Ended December 31, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income attributable to Avient common shareholders $ 169.5 $ 1.84 Special items, after-tax 15.9 0.17 Amortization expense, after-tax 59.5 0.65 Adjusted net income / EPS $ 244.9 $ 2.66 (1) Per share amounts may not recalculate from figures presented herein due to rounding Three Months Ended June 30, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income attributable to Avient common shareholders $ 33.6 $ 0.36 Special items, after-tax 21.8 0.24 Amortization expense, after-tax 14.8 0.16 Adjusted net income / EPS $ 70.2 $ 0.76 (1) Per share amounts may not recalculate from figures presented herein due to rounding

First quarter 2024 adjusted EPS was $0.76 compared to $0.63 in the prior year. Avient will provide additional details on its 2024 first quarter and 2024 outlook during its webcast scheduled for 8:00 a.m. Eastern Time on May 7, 2024.

Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation - Barbastro Pol. Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation - Suzano, Brasil Av. Dominic Townsend, President Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Avient Corporation - Toluca, Mexico AV.

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