Each common share is entitled to one vote for each Director nominee and one vote for each of the other proposals to be voted on at the Annual Meeting. SAR grants for which stock price hurdles have been met vest in one-third increments on the first, second and third anniversary of the grant date. Each share is entitled to one vote.

Sustainable Development Goals • Updates sustainable solutions portfolio performance • Introduces latest Employee Resource Group (EMBRACE) focused on attracting and retaining racially diverse talent • Recognizes Avient as one of America’s Most Responsible Companies by Newsweek 2020 SUSTAINABILITY REPORT 19 Reduce Scope 1 & 2 greenhouse gas emissions by 60%. D is t. ) K W R P P G A V Y F U L R P M G C P H X L F M C H U N IF F E C L A S H K R A E M N C E S C L A LB Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of July 28, 2021 Avient reflects 2021 estimated revenue of $4,650M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA Median: 81% Median: 78% HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $580M and excludes one-time synergy capture CAPEX ($20M) Source: Peer data per Bloomberg market data as of July 28, 2021 87 90 86 82 80 78 73 87 82 82 79 79 78 78 77 76 71 67 46 A vi en t K W R P P G A V Y F U L R P M G C P F M C U N V R C E IF F A S H E C L B N R E M N H X L H U N K R A S C L A L B (6) Source: Peer data per Bloomberg market data as of July 28, 2021 Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the median of other selected chemical / specialty companies.

In addition, a recording of the audio will be available for one week, beginning at 11:00 a.m. Three Months Ended June 30, 2021 Three Months Ended June 30, 2020 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 68.8 $ 0.74 $ 23.0 $ 0.25 Special items, after tax (Attachment 3) 11.7 0.13 2.6 0.03 Adjusted net income / EPS - excluding special items $ 80.5 $ 0.87 $ 25.6 $ 0.28 Six Months Ended June 30, 2021 Six Months Ended June 30, 2020 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 148.1 $ 1.60 $ 56.1 $ 0.63 Special items, after tax (Attachment 3) 14.3 0.16 11.2 0.12 Adjusted net income / EPS - excluding special items $ 162.4 $ 1.76 $ 67.3 $ 0.75 7 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, 2021 2020 2021 2020 Sales $ 1,235.2 $ 609.1 $ 2,397.5 $ 1,320.6 Cost of sales 946.5 459.4 1,806.4 999.4 Gross margin 288.7 149.7 591.1 321.2 Selling and administrative expense 180.6 111.7 362.6 230.4 Operating income 108.1 38.0 228.5 90.8 Interest expense, net (19.5) (16.2) (38.8) (25.6) Other income, net 1.2 9.5 2.7 11.1 Income from continuing operations before income taxes 89.8 31.3 192.4 76.3 Income taxes (20.4) (7.9) (43.3) (19.8) Net income from continuing operations 69.4 23.4 149.1 56.5 Loss from discontinued operations, net of income taxes — (0.2) — (0.5) Net income 69.4 23.2 149.1 56.0 Net income attributable to noncontrolling interests (0.6) (0.4) (1.0) (0.4) Net income attributable to Avient common shareholders $ 68.8 $ 22.8 $ 148.1 $ 55.6 Earnings per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.75 $ 0.25 $ 1.62 $ 0.63 Discontinued operations — — — — Total $ 0.75 $ 0.25 $ 1.62 $ 0.63 Earnings per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.74 $ 0.25 $ 1.60 $ 0.63 Discontinued operations — — — (0.01) Total $ 0.74 $ 0.25 $ 1.60 $ 0.62 Cash dividends declared per share of common stock $ 0.2125 $ 0.2025 $ 0.4250 $ 0.4050 Weighted-average shares used to compute earnings per common share: Basic 91.3 91.4 91.3 88.8 Diluted 92.4 91.8 92.3 89.4 8 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, 2021 2020 2021 2020 Cost of sales: Restructuring costs, including accelerated depreciation and amortization $ (1.5) $ (1.2) $ (3.3) $ (1.2) Environmental remediation costs (12.5) (3.1) (13.0) (3.5) Reimbursement of previously incurred environmental costs — 8.5 4.5 8.7 Acquisition related costs 1.4 — 1.4 — Impact on cost of sales (12.6) 4.2 (10.4) 4.0 Selling and administrative expense: Restructuring, legal and other (1.4) (3.5) (2.7) (5.3) Acquisition earn-out adjustments — — — (1.0) Acquisition related costs (0.2) (9.7) (3.5) (16.4) Impact on selling and administrative expense (1.6) (13.2) (6.2) (22.7) Impact on operating income (14.2) (9.0) (16.6) (18.7) Costs related to committed financing in interest expense, net — (0.5) — (0.5) Other income, net — 0.2 — 0.3 Pension settlement gain and mark-to-market adjustment — 6.9 — 6.9 Impact on income from continuing operations before income taxes (14.2) (2.4) (16.6) (12.0) Income tax benefit on above special items 3.4 0.7 4.3 2.7 Tax adjustments(2) (0.9) (0.9) (2.0) (1.9) Impact of special items on net income from continuing operations attributable to Avient Shareholders $ (11.7) $ (2.6) $ (14.3) $ (11.2) Diluted earnings per common share impact $ (0.13) $ (0.03) $ (0.16) $ (0.12) Weighted average shares used to compute adjusted earnings per share: Diluted 92.4 91.8 92.3 89.4 (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. 9 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) June 30, 2021 December 31, 2020 ASSETS Current assets: Cash and cash equivalents $ 616.2 $ 649.5 Accounts receivable, net 705.2 516.6 Inventories, net 412.5 327.5 Other current assets 124.2 108.5 Total current assets 1,858.1 1,602.1 Property, net 680.1 694.9 Goodwill 1,281.7 1,308.1 Intangible assets, net 944.9 1,008.5 Operating lease assets, net 87.3 80.9 Other non-current assets 195.3 176.0 Total assets $ 5,047.4 $ 4,870.5 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 18.8 $ 18.6 Accounts payable 574.6 471.7 Current operating lease obligations 24.9 25.1 Accrued expenses and other current liabilities 316.0 285.6 Total current liabilities 934.3 801.0 Non-current liabilities: Long-term debt 1,852.2 1,854.0 Pension and other post-retirement benefits 112.6 115.0 Non-current operating lease obligations 62.8 56.0 Other non-current liabilities 299.1 332.8 Total non-current liabilities 2,326.7 2,357.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 1,768.2 1,697.1 Noncontrolling interest 18.2 14.6 Total equity 1,786.4 1,711.7 Total liabilities and equity $ 5,047.4 $ 4,870.5 10 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Six Months Ended June 30, 2021 2020 Operating Activities Net income $ 149.1 $ 56.0 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 69.5 40.8 Accelerated depreciation and amortization 1.4 — Share-based compensation expense 5.6 5.7 Changes in assets and liabilities, net of the effect of acquisitions: (Increase) decrease in accounts receivable (196.1) 16.8 (Increase) decrease in inventories (88.1) 17.4 Increase (decrease) in accounts payable 108.4 (23.5) Decrease in pension and other post-retirement benefits (9.2) (12.7) Increase (decrease) in accrued expenses and other assets and liabilities, net 27.5 (3.5) Payment of post-acquisition date earnout liability — (21.0) Net cash provided by operating activities 68.1 76.0 Investing activities Capital expenditures (42.1) (21.3) Net proceeds from divestiture — 7.1 Net cash proceeds provided by other assets (2.0) 5.2 Net cash used by investing activities (44.1) (9.0) Financing activities Debt offering proceeds — 650.0 Purchase of common shares for treasury (4.2) (13.6) Cash dividends paid (38.8) (34.3) Repayment of long-term debt (4.4) (4.2) Payments of withholding tax on share awards (4.2) (1.6) Debt financing costs — (9.7) Equity offering proceeds, net of underwriting discount and issuance costs — 496.1 Payment of acquisition date earnout liability — (32.9) Net cash (used) provided by financing activities (51.6) 1,049.8 Effect of exchange rate changes on cash (5.7) (4.5) (Decrease) increase in cash and cash equivalents (33.3) 1,112.3 Cash and cash equivalents at beginning of year 649.5 864.7 Cash and cash equivalents at end of period $ 616.2 $ 1,977.0 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.

T H E N E W P O L Y O N E : A S P E C I A L T Y G R O W T H C O M P A N Y  Growing leadership position in attractive markets  Innovation, technology and service are differentiators  Capital management is a strength: Record-setting cash generation to continue for years  Expand ROIC while increasing invested capital  Proven acquisition strategy with robust pipeline  Commercial investments are fueling momentum and generating organic growth SEGMENT HIGHLIGHTS PolyOne Corporation 17 C O L O R , A D D I T I V E S & I N K S E N D M A R K E T S & S O L U T I O N S PolyOne Corporation 18 Solid Colorants Performance Additives Screen Printing Inks Liquid Colorants Packaging 27% Industrial 14% Textiles 12% Building & Construction 10% Wire & Cable 10% Transportation 8% Consumer 7% Healthcare 6% Electrical & Electronics 3% Appliance 3% Operating Income & MarginRevenue by Region C O L O R , A D D I T I V E S & I N K S 2 0 1 7 R E V E N U E | $ 8 9 3 M I L L I O N $4 $25 $104 $139 0.9% 5.5% 12.2% 15.5% 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% 14.0% 16.0% 18.0% 20 30 40 50 60 70 80 90 100 110 120 130 140 150 2005 2009 2013 2017 PolyOne Corporation 19 Europe 32% United States 46% Asia 15% Canada 1% Mexico 4% Brazil 2% (in millions) S P E C I A L T Y E N G I N E E R E D M A T E R I A L S E N D M A R K E T S & S O L U T I O N S PolyOne Corporation 20 Engineered Formulations Advanced Composites Thermoplastic Elastomers Consumer 20% Transportation 19% Electrical & Electronics 15% Wire & Cable 13% Healthcare 11% Industrial 8% Packaging 7% Appliance 4% Building & Construction 3% S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Revenue by Region Operating Income & Margin 2 0 1 7 R E V E N U E | $ 6 2 4 M I L L I O N PolyOne Corporation 21 $21 $57 $78 0.1% 5.1% 9.3% 12.5% 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% 14.0% 20 30 40 50 60 70 80 90 2005 2009 2013 2017 Europe 28% United States 48% Asia 22% Canada 2% (in millions) P E R F O R M A N C E P R O D U C T S & S O L U T I O N S E N D M A R K E T S & S O L U T I O N S PolyOne Corporation 22 Specialty Vinyl Solutions Healthcare Formulations Smart Device Materials Flame Retardant Polymers Building & Construction 30% Industrial 18% Transportation 16% Wire & Cable 15%Appliance 7% Packaging 5% Consumer 5% Electrical & Electronics 3% Healthcare 1% Mexico 5% United States 77% Latin America 2% Canada 16% P E R F O R M A N C E P R O D U C T S & S O L U T I O N S Operating Income & MarginRevenue by Region 2 0 1 7 R E V E N U E | $ 7 2 1 M I L L I O N $40 $33 $56 $77 4.6% 3.6% 7.2% 10.7% 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% 14.0% 16.0% 0 10 20 30 40 50 60 70 80 90 100 2005 2009 2013 2017 PolyOne Corporation 23 (in millions) D I S T R I B U T I O N E N D M A R K E T S & S U P P L I E R S PolyOne Corporation 24 Transportation 23% Healthcare 22% Industrial 18% Consumer 15% Appliance 7% Electrical & Electronics 6% Building & Construction 4% Packaging 3% Wire & Cable 2% $20 $25 $63 $73 2.9% 4.0% 5.9% 6.3% 0.0% 1.0% 2.0% 3.0% 4.0% 5.0% 6.0% 7.0% 15 25 35 45 55 65 75 2005 2009 2013 2017 Operating Income & Margin (in millions) 2017 Revenue | $1.2 Billion http://www.polyone.com/Pages/VariationRoot.aspx http://www.polyone.com/Pages/VariationRoot.aspx T A R G E T E N D M A R K E T S & A P P L I C A T I O N E X A M P L E S PolyOne Corporation 25 Thermally Conductive Technologies Chemical Resistant Technologies Polymer Colorants Elastomeric Grips and Handles Structural Composites Antimicrobial Technologies Anti-Counterfeiting Technologies Target End Markets… Healthcare Catheter Technologies Under-hood Components Target End Markets… Automotive Interior Structural Components Sound & Vibration Management Roof Systems Air Management Electronics and Cameras Lighting Exterior / Interior Trim Braces & Brackets Fasteners Seals & Flaps Target End Markets… Consumer Thermally Conductive Components Polymer Colorants Elastomeric Grips and Handles Structural Composite Components Oxygen Scavenger Technologies Laser Marking Additives Antistatic Technologies UV Light Barrier Technologies Cap & Closure Colorants Process Optimization Technologies Antioxidant Technologies Density Modified Technologies Target End Markets… Packaging  Impart weight, sound and metallic finish to caps and closures for cosmetics and spirits applications  Elevate quality and prestige perceptions among high-end consumers  Eliminate time and cost associated with secondary operations and assembly Luxury Packaging GravitechTM Density Modified Polymers  Eliminate costs by increasing pigment density  Enhance color performance without altering form and formulation  Increase design capabilities by reducing weight and layer thickness Optimize Color Usage OnColorTM Super Concentrates  Inhibit microbial growth on polymer surfaces  Enhance value or products and devices  Highly versatile concentrate with the ability to be incorporated into a wide variety of products Combat Bacteria Formation WithStandTM Antimicrobial Technology  Durable, long-lasting products stand up to the most aggressive disinfectants  Minimize environmental stress cracking and discoloration  One of the broadest medically approved polymer and colorant portfolios Medical Device Housings Chemically Resistant Engineered Polymers Color & Design Services  Greater control of color development and supply chain  Work across entire design process from concept to commercialization  Inspire creativity in the use of polymer materials, colors, and effects  Innovative brand differentiation  Faster development timelines Outdoor Applications  Leading provider of high performance specialty materials for the recreational and sports & leisure industry  Well positioned across all segments to address market needs  Metal to Polymer Conversion  Lightweighting  Thermal Management  Impact Performance  ColorMatrix Fiber Colorant Solutions  Proprietary advanced liquid color formulations and equipment enable greater efficiency and productivity  Eliminates aqueous dyeing and its associated wastewater treatment  Solid Color Concentrates  Extrusion-spun fibers colored via solid masterbatch Fiber Colorants  High flame retardancy to meet strict UL standards  Greater processing and design flexibility  Specialized additives provide long term color stability  Diffusive lens materials improve light dispersion Smart Home Devices ResilienceTM Vinyl Solutions 1 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne common shareholders, adjusted earnings per share (EPS) attributable to PolyOne common shareholders and adjusted earnings before interest, taxes, depreciation and amortization (EBITDA) to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and that current levels may serve as a base for future performance. Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016 2017 Net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 Joint venture equity earnings, after tax (19.0) (14.7) (3.7) — — — — — — Special items, before tax(1) (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 Special items, tax adjustments(1) (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation. (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; 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; the effect of changes in accounting principles or other such laws or provisions affecting reported results and tax adjustments. Tax adjustments include the net tax expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuation allowance adjustments.

Całkowita odpowiedzialność Sprzedającego wobec Kupującego za szkody, niezależnie od tego, czy wynikają one z naruszenia gwarancji, czy z jakiejkolwiek innej przyczyny, oraz niezależnie od tego, czy wynikają one z umowy sprzedaży, do której mają zastosowanie niniejsze Warunki, czy też z innego tytułu, w żadnym wypadku nie przekroczy tej części ceny zakupu, która ma zastosowanie do części Produktu stanowiącej podstawę roszczenia Kupującego o takie odszkodowanie. If a present or future law, governmental decree, order, regulation, or ruling under any existing or future legislation prevents Seller from increasing or revising the price as provided herein, or nullifies or reduces any price or price increase hereunder, upon written notice from one to the other, Seller and Buyer will attempt to identify mutually agreeable changes to conform the sale contract to which these Terms apply with such law, decree, order, regulation, or ruling. Sprzedający nie ponosi odpowiedzialności za awarię sprzętu wyładowczego lub rozładowczego lub materiałów używanych przez Kupującego, niezależnie od tego, czy zostały one dostarczone przez Sprzedającego. 12.

Q & A Q: Someone just asked me to hold the door open for them to help them enter one of our buildings. No one wants unwarranted intrusions into personal space. Q & A Q: One of our customers has been loyal to us while we worked through a series of issues.

Nie dadzą one jednak odpowiedzi na każde pytanie i nie odnoszą się do każdej możliwej sytuacji. Dotyczą one sposobu gromadzenia, wykorzystywania, przechowywania, udostępniania, zachowywania oraz usuwania danych osobowych. W związku z tym branie łapówek i nielegalnych prowizji jest zabronione nawet w krajach, w których mogą one być zgodne z prawem.

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. Three Months Ended March 31, 2023 Three Months Ended March 31, 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 20.8 $ 0.23 $ 64.4 $ 0.70 Special items, after tax (Attachment 3) 22.3 0.24 6.4 0.07 Amortization expense, after-tax 15.1 0.16 10.8 0.12 Adjusted net income / EPS $ 58.2 $ 0.63 $ 81.6 $ 0.89 8 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2023 2022 Sales $ 845.7 $ 892.2 Cost of sales 598.1 637.8 Gross margin 247.6 254.4 Selling and administrative expense 190.5 152.2 Operating income 57.1 102.2 Interest expense, net (28.8) (16.9) Other income (expense), net 0.7 (0.6) Income from continuing operations before income taxes 29.0 84.7 Income tax expense (7.7) (20.0) Net income from continuing operations 21.3 64.7 (Loss) income from discontinued operations, net of income taxes (0.9) 19.8 Net income 20.4 84.5 Net income attributable to noncontrolling interests (0.5) (0.3) Net income attributable to Avient common shareholders $ 19.9 $ 84.2 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.23 $ 0.70 Discontinued operations (0.01) 0.22 Total $ 0.22 $ 0.92 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.23 $ 0.70 Discontinued operations (0.01) 0.21 Total $ 0.22 $ 0.91 Cash dividends declared per share of common stock $ 0.2475 $ 0.2375 Weighted-average shares used to compute earnings per common share: Basic 91.0 91.5 Diluted 91.8 92.3 9 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended March 31, 2023 2022 Cost of sales: Restructuring costs, including accelerated depreciation $ (6.6) $ (4.4) Environmental remediation costs (1.4) (2.0) Reimbursement of previously incurred environmental costs — 0.6 Impact on cost of sales (8.0) (5.8) Selling and administrative expense: Restructuring, legal and other (15.7) 1.9 Acquisition related costs (3.4) (2.9) Impact on selling and administrative expense (19.1) (1.0) Impact on operating income (27.1) (6.8) Other income (loss), net (0.2) 0.1 Impact on income from continuing operations before income taxes (27.3) (6.7) Income tax expense (benefit) on above special items 6.9 1.8 Tax adjustments(2) (1.9) (1.5) Impact of special items on net income from continuing operations $ (22.3) $ (6.4) Diluted earnings per common share impact $ (0.24) $ (0.07) Weighted average shares used to compute adjusted earnings per share: Diluted 91.8 92.3 (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, 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, adjustments to uncertain tax position reserves and changes to valuation allowances. 10 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) March 31, 2023 December 31, 2022 ASSETS Current assets: Cash and cash equivalents $ 582.7 $ 641.1 Accounts receivable, net 484.4 440.6 Inventories, net 371.9 372.7 Other current assets 125.3 115.3 Total current assets 1,564.3 1,569.7 Property, net 1,045.7 1,049.2 Goodwill 1,689.7 1,671.9 Intangible assets, net 1,601.7 1,597.6 Other non-current assets 209.8 196.6 Total assets $ 6,111.2 $ 6,085.0 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term debt $ 2.2 $ 2.2 Accounts payable 448.1 454.4 Accrued expenses and other current liabilities 386.9 412.8 Total current liabilities 837.2 869.4 Non-current liabilities: Long-term debt 2,177.7 2,176.7 Pension and other post-retirement benefits 66.2 67.2 Deferred income taxes 332.5 342.5 Other non-current liabilities 329.0 276.4 Total non-current liabilities 2,905.4 2,862.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,349.8 2,334.5 Noncontrolling interest 18.8 18.3 Total equity 2,368.6 2,352.8 Total liabilities and equity $ 6,111.2 $ 6,085.0 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Three Months Ended March 31, 2023 2022 Operating Activities Net income $ 20.4 $ 84.5 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 48.7 35.7 Accelerated depreciation 1.8 2.1 Share-based compensation expense 3.2 3.2 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (40.2) (118.8) Decrease (increase) in inventories 3.8 (15.1) (Decrease) increase in accounts payable (9.9) 90.5 Accrued expenses and other assets and liabilities, net (50.0) (63.2) Net cash (used) provided by operating activities (22.2) 18.9 Investing activities Capital expenditures (20.3) (13.3) Net proceeds from divestiture 7.3 — Net cash used by investing activities (13.0) (13.3) Financing activities Purchase of common shares for treasury — (15.8) Cash dividends paid (22.5) (21.7) Repayment of long-term debt (0.8) (2.4) Other financing (2.3) (3.9) Net cash used by financing activities (25.6) (43.8) Effect of exchange rate changes on cash 2.4 (0.4) Decrease in cash and cash equivalents (58.4) (38.6) Cash and cash equivalents at beginning of year 641.1 601.2 Cash and cash equivalents at end of period $ 582.7 $ 562.6 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.

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 2009* 2012* 2015 2018 Net income from continuing operations attributable to Avient common shareholders $ 106.7 $ 53.3 $ 144.6 $ 161.1 Joint venture equity earnings, after tax (19.0) — — — Special items, before tax (48.7) 55.1 87.6 59.5 Special items, tax adjustments (27.2) (18.9) (58.7) (25.3) Amortization expense, after tax 1.8 8.3 10.4 19.5 Adjusted net income from continuing operations attributable to Avient common shareholders $ 13.6 $ 97.8 $ 183.9 $ 214.8 Diluted shares 93.4 89.8 88.7 80.4 Adjusted EPS attributable to Avient common shareholders $ 0.15 $ 1.09 $ 2.08 $ 2.67 * Historical results have been updated to reflect subsequent changes to accounting principle and discontinued operations, excluding any changes as a result of discontinued operations from the sale of the Designed Structures and Solutions segment (DSS) and the Performance Products and Solutions segment (PP&S). 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 63.1 62.8 Depreciation and amortization 57.1 91.5 EBITDA $ 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 EBITDA as a % of sales 5.4 % 11.5 % Reconciliation of Color, Additives and Inks EBITDA Q3 2022 Q3 2021 Operating Income 68.6 66.8 Depreciation and amortization 24.2 26.6 EBITDA 92.8 $ 93.4 Reconciliation of Specialty Engineered Materials EBITDA Q3 2022 Q3 2021 SEM(1) Pro forma APM(1) Pro forma SEM SEM Pro forma APM Pro forma SEM Operating Income 31.4 6.3 37.7 30.0 13.9 43.9 Depreciation and amortization 12.9 10.9 23.8 7.9 18.4 26.3 EBITDA $ 44.3 $ 17.2 $ 61.5 $ 37.9 $ 32.3 $ 70.2 Reconciliation of Specialty Engineered Pro Forma Sales Q3 2022 Q3 2021 Sales 258.2 231.7 Pro forma APM(1) 60.7 94.1 Pro forma sales $ 318.9 $ 325.8 Reconciliation of Avient Pro Forma Sales Q3 2022 Q3 2021 Sales 823.3 818.0 Pro forma APM(1) 60.7 94.1 Pro forma sales $ 884.0 $ 912.1 (1) - Q3 2022 SEM results reflect one month of APM’s results while owned by Avient, as the acquisition closed on September 1, 2022. The Q3 2022 "Pro Forma APM" adjustments reflect periods prior to the acquisition date and are preliminary estimates for APM’s results for the months of July and August. 2 Reconciliation of Avient consolidated pro forma EBITDA Q3 2022 Q3 2021 Avient(1) Pro forma APM(1) Pro forma Avient Avient Pro forma APM Pro forma Avient Net income from continuing operations (27.8) 3.9 (23.9) 33.4 0.3 33.7 Income tax expense (1.2) 0.6 (0.6) 2.0 2.5 4.5 Interest expense 37.3 1.8 39.1 19.0 11.2 30.2 Depreciation and amortization 39.8 10.9 50.7 36.6 18.4 55.0 EBITDA 48.1 17.2 65.3 91.0 32.4 123.4 Special items, before tax 82.0 — 82.0 19.9 — 19.9 Interest expense included in special items (10.0) — (10.0) — — — Depreciation included in special items (0.8) — (0.8) (0.9) — (0.9) Adjusted EBITDA $ 119.3 $ 17.2 $ 136.5 $ 110.0 $ 32.4 $ 142.4 (1) - Q3 2022 Avient results reflect one month of APM’s results while owned by Avient, as the acquisition closed on September 1, 2022.

Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 O P E N I N G RE MARK S B O B P A T T E R S O N C H A I R M A N , P R E S I D E N T A N D C E O Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 4 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations5 6 AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES 6 Q 3 P E RFO RMAN CE 15.4% 16.3% 2022 PF 2023 Results vs.