To download a high-resolution image, please click here: FOR MEDIA USE ONLY  In addition to facilitating a more sustainable cellulosic dyeing process for textile processors, ITOFIX EVO dyes are formulated to contribute to the reduction of hazardous substances from the textile supply chain without compromising on high levels of color fastness performance.  The bluesign® label is a well-known label for textiles that certifies increased sustainable chemistry and high product safety in the textile industry.

EBITDA Margins • Focus on organic growth combined with transformative and bolt-on acquisitions • Divested commodity businesses tied to more cyclical end markets • Expanded presence in high growth areas of sustainable solutions, specialty healthcare applications, composites and more resilient end markets 5.4% 11.5% 16.1% 2006 2018 2022PF $142 $408 $585 2006 2018 2022PF 2006 figures exclude joint venture results 19 RETURNING CASH TO SHAREHOLDERS Growing Dividend 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 1.0 1.0 11 12 13 14 15 16 17 18 19 20 21 22 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 0.95 0.99 11 12 13 14 15 16 17 18 19 20 21 22 23 ~$1Bn REPURCHASED OVER LAST 11 YEARS ~$550MM PAID OVER LAST 11 YEARS Dividends Share Repurchases Cumulative Buybacks $B n $ p e r sh ar e 2022 PRO FORMA ADJUSTED EPS Earnings Growth Expanding Profitability $0.15 $1.09 $2.08 $2.67 2009 2012 2015 2018 2022PF T H IR D Q UART ER 2022 RE S U LTS $110 $119 $0.61 $0.59 Q3 2022 PERFORMANCE (TOTAL COMPANY CONT. OPS) 21 Sales Adjusted EBITDA $818 $823 + 1% Adjusted EPS + 8% - 3% (in millions) (in millions) (+ 9% excluding FX) (+ 18% excluding FX) (+ 5% excluding FX) Q3 EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 22 Price increases more than offset raw material and supply chain impacts $ millions CAI: Price / Mix 68 Inflation (44) SEM: Price / Mix 41 Inflation (26) Net Price Benefit 39 Wage and Energy Inflation (14) Clariant Color Integration Synergies 6 Incentives, Other Employee Costs 14 FX (11) Q3 2022 $137   Adjusted Q3 2021 $ 142 Demand (39) Q3 2022 SEGMENT PERFORMANCE 23 CAI $587 $566 Sales $93 $93 SEM Pro Forma $326 $319 Sales $70 $62 (+ 4% excluding FX) - 4% - 2% (+ 5% excluding FX) Flat (+ 7% excluding FX) - 11% (- 7% excluding FX) $500 $585 $2.60 $2.95 FULL YEAR 2022 GUIDANCE 24 Sales Adjusted EBITDA $3,375 $3,635 Adjusted EPS (in millions) (in millions) 25 SUMMARY • Executed the plans we laid out earlier this year • Completed the Dyneema acquisition and Distribution divestiture amid challenging market conditions • Paid down debt and expect to finish the year modestly levered at 3.1x net debt to 2022 pro forma adjusted EBITDA • Expect $200 million of free cash flow in 2022 • Entering an economic slowdown with a portfolio that is better positioned than ever before • Updated our EPS guidance to $2.60 from continuing operations APPENDIX Performance Additives Pigments TiO2 Dyestuffs 3%Polyethylene 12% Nylon Polypropylene Other Raw 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 27 • From Q2 to Q3, we have seen a 7-10% sequential decline in certain hydrocarbon-based raw materials • Other raw materials such as performance additives and pigments have shown moderate inflation sequentially from Q2 to Q3 Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Avient Protective Materials SEGMENT DATA U.S. & Canada Latin America 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 21% Building and END MARKET REVENUE (1) Total company adjusted EBITDA of $585M includes corporate costs.

EBITDA Margins • Focus on organic growth combined with transformative and bolt-on acquisitions • Divested commodity businesses tied to more cyclical end markets • Expanded presence in high growth areas of sustainable solutions, specialty healthcare applications, composites and more resilient end markets 5.4% 11.5% 16.1% 2006 2018 2022PF $142 $408 $585 2006 2018 2022PF 2006 figures exclude joint venture results 19 RETURNING CASH TO SHAREHOLDERS Growing Dividend 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 1.0 1.0 11 12 13 14 15 16 17 18 19 20 21 22 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 0.95 0.99 11 12 13 14 15 16 17 18 19 20 21 22 23 ~$1Bn REPURCHASED OVER LAST 11 YEARS ~$550MM PAID OVER LAST 11 YEARS Dividends Share Repurchases Cumulative Buybacks $B n $ p e r sh ar e 2022 PRO FORMA ADJUSTED EPS Earnings Growth Expanding Profitability $0.15 $1.09 $2.08 $2.67 2009 2012 2015 2018 2022PF T H IR D Q UART ER 2022 RE S U LTS $110 $119 $0.61 $0.59 Q3 2022 PERFORMANCE (TOTAL COMPANY CONT. OPS) 21 Sales Adjusted EBITDA $818 $823 + 1% Adjusted EPS + 8% - 3% (in millions) (in millions) (+ 9% excluding FX) (+ 18% excluding FX) (+ 5% excluding FX) Q3 EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 22 Price increases more than offset raw material and supply chain impacts $ millions CAI: 68Price / Mix (44)Inflation SEM: 41Price / Mix (26)Inflation 39Net Price Benefit (14)Wage and Energy Inflation 6Clariant Color Integration Synergies 14Incentives, Other Employee Costs (11)FX $137 Q3 2022   Adjusted $ 142Q3 2021 (39)Demand Q3 2022 SEGMENT PERFORMANCE 23 CAI $587 $566 Sales $93 $93 SEM Pro Forma $326 $319 Sales $70 $62 (+ 4% excluding FX) - 4% - 2% (+ 5% excluding FX) Flat (+ 7% excluding FX) - 11% (- 7% excluding FX) $500 $585 $2.60 $2.95 FULL YEAR 2022 GUIDANCE 24 Sales Adjusted EBITDA $3,375 $3,635 Adjusted EPS (in millions) (in millions) 25 SUMMARY • Executed the plans we laid out earlier this year • Completed the Dyneema acquisition and Distribution divestiture amid challenging market conditions • Paid down debt and expect to finish the year modestly levered at 3.1x net debt to 2022 pro forma adjusted EBITDA • Expect $200 million of free cash flow in 2022 • Entering an economic slowdown with a portfolio that is better positioned than ever before • Updated our EPS guidance to $2.60 from continuing operations APPENDIX Performance Additives Pigments TiO2 Dyestuffs 3%Polyethylene 12% Nylon Polypropylene Other Raw 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 27 • From Q2 to Q3, we have seen a 7-10% sequential decline in certain hydrocarbon-based raw materials • Other raw materials such as performance additives and pigments have shown moderate inflation sequentially from Q2 to Q3 Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Avient Protective Materials SEGMENT DATA U.S. & Canada Latin America 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 21% Building and END MARKET REVENUE (1) Total company adjusted EBITDA of $585M includes corporate costs.

High density materials that can deliver a premium feel Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (English language version) Gravi-Tech™ replaces metal and maintains a high quality look and feel for luxury closure (Spanish language version)

Long fiber reinforced thermoplastics (LFTs) provide alternatives to and benefits over traditional materials used in aftermarket parts, offering designers fresh options with high strength, low density, resistance to moisture absorption, excellent design freedom, and the ability to eliminate secondary processing.  High design freedom through injection molding Environmentally stabilized nylon 6 and 6/6 long fiber composites for application intermittently exposed to water high humidity that require consistent structural performance

To download a high-resolution image, please click here: FOR MEDIA USE ONLY Moreover, coloring processes for dark recycled material can be challenging due to the need for high amounts of colorant to overcome the PCR base color.  The joint study demonstrated that using certain components together from both companies can more consistently produce a wide range of color options for PCR material without having to add high levels of colorant.

Design for shelf-impact and differentiation Impress™ High Gloss Colorants - Product Bulletin (Chinese) OnColor™ Impress™ High Gloss Metallic Effect Colorants (English)

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; disruptions or inefficiencies in our supply chain, logistics, or operations; changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; fluctuations in raw material prices, quality and supply, and in energy prices and supply; demand for our products and services; production outages or material costs associated with scheduled or unscheduled maintenance programs; unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; information systems failures and cyberattacks; amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; and other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts and any recessionary conditions. 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.

Complēt™ MT 40% Long Glass Fiber Impact Modified Formulation used to produce fans for lawn blowers and vacuums

Complēt™ MT 40% Long Glass Fiber Impact Modified Formulation used to produce fans for lawn blowers and vacuums