A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year. https://www.avient.com/investors https://edge.media-server.com/mmc/p/fqwbh5zv https://www.avient.com/investors https://register.vevent.com/register/BI3f68f18c2b10416fa722221e3f01ea50 http://www.avient.com/investors/events-presentations 4 About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Examples include: • Dyneema®, the world’s strongest fiber™, enables unmatched levels of performance and protection for end-use applications, including ballistic personal protection, marine and sustainable infrastructure and outdoor sports • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®. Three Months Ended September 30, 2022 Three Months Ended September 30, 2021 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net (loss) income from continuing operations attributable to Avient shareholders $ (27.4) $ (0.30) $ 33.7 $ 0.37 Special items, after tax (Attachment 3) 68.3 0.75 11.7 0.13 Amortization expense, after-tax 13.4 0.14 $ 11.0 $ 0.11 Adjusted net income / EPS $ 54.3 $ 0.59 $ 56.4 $ 0.61 Nine Months Ended September 30, 2022 Nine Months Ended September 30, 2021 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 99.8 $ 1.08 $ 143.3 $ 1.56 Special items, after tax (Attachment 3) 77.9 0.85 26.0 0.28 Amortization expense, after-tax 34.9 0.38 $ 33.6 0.36 Adjusted net income / EPS $ 212.6 $ 2.31 $ 202.9 $ 2.20 8 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, 2022 2021 2022 2021 Sales $ 823.3 $ 818.0 $ 2,606.5 $ 2,508.5 Cost of sales 627.9 602.4 1,895.8 1,781.2 Gross margin 195.4 215.6 710.7 727.3 Selling and administrative expense 154.8 162.8 467.8 497.7 Operating income 40.6 52.8 242.9 229.6 Interest expense, net (37.3) (19.0) (70.4) (57.8) Other (expense) income, net (32.3) 1.6 (31.3) 4.3 (Loss) income from continuing operations before income taxes (29.0) 35.4 141.2 176.1 Income tax benefit (expense) 1.2 (2.0) (41.5) (32.1) Net (loss) income from continuing operations (27.8) 33.4 99.7 144.0 Income from discontinued operations, net of income taxes 17.1 19.2 58.8 57.7 Net (loss) income (10.7) 52.6 158.5 201.7 Net loss (income) attributable to noncontrolling interests 0.4 0.3 0.1 (0.7) Net (loss) income attributable to Avient common shareholders $ (10.3) $ 52.9 $ 158.6 $ 201.0 (Loss) earnings per share attributable to Avient common shareholders - Basic: Continuing operations $ (0.30) $ 0.37 $ 1.09 $ 1.57 Discontinued operations 0.19 0.21 0.65 0.63 Total $ (0.11) $ 0.58 $ 1.74 $ 2.20 (Loss) earnings per share attributable to Avient common shareholders - Diluted: Continuing operations $ (0.30) $ 0.37 $ 1.08 $ 1.56 Discontinued operations 0.19 0.20 0.64 0.62 Total $ (0.11) $ 0.57 $ 1.72 $ 2.18 Cash dividends declared per share of common stock $ 0.2375 $ 0.2125 $ 0.7125 $ 0.6375 Weighted-average shares used to compute earnings per common share: Basic 90.9 91.4 91.3 91.3 Diluted 90.9 92.2 92.0 92.1 9 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, 2022 2021 2022 2021 Cost of sales: Restructuring costs, including accelerated depreciation $ (2.8) $ (5.3) $ (9.8) $ (8.6) Environmental remediation costs (18.8) (9.4) (23.8) (22.4) Reimbursement of previously incurred environmental costs 0.1 — 8.3 4.5 Acquisition related costs (10.3) (2.6) (10.3) (1.2) Impact on cost of sales (31.8) (17.3) (35.6) (27.7) Selling and administrative expense: Restructuring, legal and other (0.2) — — (1.7) Acquisition related costs (8.2) (2.7) (13.2) (7.2) Impact on selling and administrative expense (8.4) (2.7) (13.2) (8.9) Impact on operating income (40.2) (20.0) (48.8) (36.6) Interest expense, net - costs related to committed financing (10.0) — (10.0) — Mark-to-market on derivative instruments (31.8) — (30.9) — Other — 0.1 0.1 0.1 Impact on other (expense)/income, net (31.8) 0.1 (30.8) 0.1 Impact on income from continuing operations before income taxes (82.0) (19.9) (89.6) (36.5) Income tax benefit on above special items 20.5 4.6 22.5 8.9 Tax adjustments(2) (6.8) 3.6 (10.8) 1.6 Impact of special items on net income from continuing operations $ (68.3) $ (11.7) $ (77.9) $ (26.0) Diluted earnings per common share impact $ (0.75) $ (0.13) $ (0.85) $ (0.28) Weighted average shares used to compute adjusted earnings per share: Diluted 91.6 92.2 92.0 92.1 (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 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. (2) Tax adjustments include the net tax benefit/ (expense) from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments. 10 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) September 30, 2022 December 31, 2021 ASSETS Current assets: Cash and cash equivalents $ 544.4 $ 601.2 Accounts receivable, net 504.6 439.9 Inventories, net 441.5 305.8 Current assets held for sale 367.8 360.2 Other current assets 130.0 119.9 Total current assets 1,988.3 1,827.0 Property, net 965.4 672.3 Goodwill 1,491.0 1,284.8 Intangible assets, net 1,525.7 925.2 Operating lease assets, net 56.0 58.2 Non-current assets held for sale — 22.0 Other non-current assets 280.7 207.7 Total assets $ 6,307.1 $ 4,997.2 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 613.9 $ 8.6 Accounts payable 448.7 429.5 Current operating lease obligations 18.1 21.1 Current liabilities held for sale 170.3 141.3 Accrued expenses and other current liabilities 304.6 340.2 Total current liabilities 1,555.6 940.7 Non-current liabilities: Long-term debt 2,502.9 1,850.3 Pension and other post-retirement benefits 91.6 99.9 Deferred income taxes 210.4 100.6 Non-current operating lease obligations 35.7 37.3 Non-current liabilities held for sale — 13.1 Other non-current liabilities 174.8 164.8 Total non-current liabilities 3,015.4 2,266.0 SHAREHOLDERS' EQUITY Avient shareholders’ equity 1,720.4 1,774.7 Noncontrolling interest 15.7 15.8 Total equity 1,736.1 1,790.5 Total liabilities and equity $ 6,307.1 $ 4,997.2 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Nine Months Ended September 30, 2022 2021 Operating Activities Net income $ 158.5 $ 201.7 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 110.3 105.8 Accelerated depreciation 4.0 1.9 Share-based compensation expense 9.5 8.4 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (66.5) (199.7) Increase in inventories (12.5) (156.2) Increase in accounts payable 43.5 95.3 Decrease in pension and other post-retirement benefits (15.8) (14.2) (Decrease) increase in accrued expenses and other assets and liabilities, net (7.1) 67.0 Net cash provided by operating activities 223.9 110.0 Investing activities Capital expenditures (55.1) (62.7) Business acquisitions, net of cash acquired (1,426.1) (47.6) Settlement of foreign exchange derivatives 93.3 — Net cash proceeds used by other assets — (2.0) Net cash used by investing activities (1,387.9) (112.3) Financing activities Debt proceeds 1,300.0 — Purchase of common shares for treasury (36.4) (4.2) Cash dividends paid (65.2) (58.2) Repayment of long-term debt (6.8) (16.5) Payments of withholding tax on share awards (4.2) (9.1) Debt financing costs (49.3) — Other financing activities — (3.5) Net cash provided (used) by financing activities 1,138.1 (91.5) Effect of exchange rate changes on cash (30.9) (10.5) Decrease in cash and cash equivalents (56.8) (104.3) Cash and cash equivalents at beginning of year 601.2 649.5 Cash and cash equivalents at end of period $ 544.4 $ 545.2 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.

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