PVC EDGE BANDING MANUFACTURER E X T R U S I O N S H E E T & S T R A P • Meet the diverse coefficient of friction (CoF) requirements across various film structures and compositions for a wide range of applications • Improve the speed of slip blooming and ensure consistent slip performance post-film production • Preserve excellent optical and mechanical properties • Compliance with food regulations for end packaging in food sealant applications • Achieved the optimal flowability of liquid white and liquid orange, ensuring consistent color through suitable mixing with other colorants • Ensured lot-to-lot consistency with DE value of less than 0.5 • Supported customers in achieving stable and high-quality coloration during their PVC processing ColorMatrix Liquid Color Concentrates KEY REQUIREMENT WHY AVIENT AVIENT SOLUTION FUNCTIONALITY + COMPLIANCE Avient Corporation 1 • Meet the diverse coefficient of friction (CoF) requirements across various film structures and compositions for a wide range of applications • Improve the speed of slip blooming and ensure consistent slip performance post-film production • Preserve excellent optical and mechanical properties • Compliance with food regulations for end packaging in food sealant applications KEY REQUIREMENT • Standard colorant for internal color matching in PVC sheet applications • Manufactured with phthalate-free plasticizer • Good thermal stability and compatibility with PVC resin for a wide rang of color index choices • Compliance with heavy metal-free and RoHS regulations LIQUID COLOR CONCENTRATES AND DOSING | AVIENTLEARN MORE KEY REQUIREMENTS Copyright © 2025, Avient Corporation.

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, 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 (Attachment 3) 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 Nine Months Ended September 30, 2023 Nine Months Ended September 30, 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 48.0 $ 0.52 $ 99.8 $ 1.08 Special items, after tax (Attachment 3) 73.9 0.81 77.9 0.85 Amortization expense, after-tax 46.5 0.51 34.9 0.38 Adjusted net income / EPS $ 168.4 $ 1.84 $ 212.6 $ 2.31 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, 2023 2022 2023 2022 Sales $ 753.7 $ 823.3 $ 2,423.8 $ 2,606.5 Cost of sales 558.4 627.9 1,740.2 1,895.8 Gross margin 195.3 195.4 683.6 710.7 Selling and administrative expense 161.0 154.8 529.9 467.8 Operating income 34.3 40.6 153.7 242.9 Interest expense, net (30.3) (37.3) (88.5) (70.4) Other income (expense), net 1.0 (32.3) 1.5 (31.3) Income (loss) from continuing operations before income taxes 5.0 (29.0) 66.7 141.2 Income tax benefit (expense) 0.1 1.2 (18.0) (41.5) Net income (loss) from continuing operations 5.1 (27.8) 48.7 99.7 Income (loss) from discontinued operations, net of income taxes — 17.1 (0.9) 58.8 Net income (loss) 5.1 (10.7) 47.8 158.5 Net loss (income) attributable to noncontrolling interests — 0.4 (0.7) 0.1 Net income (loss) attributable to Avient common shareholders $ 5.1 $ (10.3) $ 47.1 $ 158.6 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.06 $ (0.30) $ 0.53 $ 1.09 Discontinued operations — 0.19 (0.01) 0.65 Total $ 0.06 $ (0.11) $ 0.52 $ 1.74 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.06 $ (0.30) $ 0.52 $ 1.08 Discontinued operations — 0.19 (0.01) 0.64 Total $ 0.06 $ (0.11) $ 0.51 $ 1.72 Cash dividends declared per share of common stock $ 0.2475 $ 0.2375 $ 0.7425 $ 0.7125 Weighted-average shares used to compute earnings per common share: Basic 91.1 90.9 91.1 91.3 Diluted 91.9 90.9 91.8 92.0 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, 2023 2022 2023 2022 Cost of sales: Restructuring costs, including accelerated depreciation $ (2.1) $ (2.8) $ (9.9) $ (9.8) Environmental remediation costs (38.1) (18.8) (52.5) (23.8) Reimbursement of previously incurred environmental costs — 0.1 — 8.3 Acquisition related costs — (10.3) — (10.3) Impact on cost of sales (40.2) (31.8) (62.4) (35.6) Selling and administrative expense: Restructuring and employee separation costs (2.0) 0.3 (13.8) (1.0) Legal and other 1.7 (0.5) (9.1) 1.0 Acquisition related costs (0.5) (8.2) (4.6) (13.2) Impact on selling and administrative expense (0.8) (8.4) (27.5) (13.2) Impact on operating income (41.0) (40.2) (89.9) (48.8) Interest expense, net - financing costs (2.2) (10.0) (2.2) (10.0) Mark-to-market on derivative instruments — (31.8) — (30.9) Other — — (0.1) 0.1 Impact on other expense, net — (31.8) (0.1) (30.8) Impact on income from continuing operations before income taxes (43.2) (82.0) (92.2) (89.6) Income tax benefit on above special items 10.8 20.5 23.2 22.5 Tax adjustments(2) 0.4 (6.8) (4.9) (10.8) Impact of special items on net income from continuing operations $ (32.0) $ (68.3) $ (73.9) $ (77.9) Diluted earnings per common share impact $ (0.35) $ (0.75) $ (0.81) $ (0.85) Weighted average shares used to compute adjusted earnings per share: Diluted 91.9 91.6 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 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 the establishment, reversal or changes to valuation allowances. 10 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) September 30, 2023 December 31, 2022 ASSETS Current assets: Cash and cash equivalents $ 439.6 $ 641.1 Accounts receivable, net 436.9 440.6 Inventories, net 349.6 372.7 Other current assets 138.2 115.3 Total current assets 1,364.3 1,569.7 Property, net 978.2 1,049.2 Goodwill 1,681.3 1,671.9 Intangible assets, net 1,563.0 1,597.6 Other non-current assets 202.9 196.6 Total assets $ 5,789.7 $ 6,085.0 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 9.5 $ 2.2 Accounts payable 389.5 454.4 Accrued expenses and other current liabilities 328.1 412.8 Total current liabilities 727.1 869.4 Non-current liabilities: Long-term debt 2,070.8 2,176.7 Pension and other post-retirement benefits 65.1 67.2 Deferred income taxes 293.2 342.5 Other non-current liabilities 337.6 276.4 Total non-current liabilities 2,766.7 2,862.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,276.9 2,334.5 Noncontrolling interest 19.0 18.3 Total equity 2,295.9 2,352.8 Total liabilities and equity $ 5,789.7 $ 6,085.0 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Nine Months Ended September 30, 2023 2022 Operating Activities Net income $ 47.8 $ 158.5 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 142.6 110.3 Accelerated depreciation 1.9 4.0 Share-based compensation expense 9.7 9.5 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (5.7) (66.5) Decrease (increase) in inventories 16.5 (12.5) (Decrease) increase in accounts payable (59.1) 43.5 Taxes paid on gain on sale of business (104.1) — Accrued expenses and other assets and liabilities, net (2.5) (22.9) Net cash provided by operating activities 47.1 223.9 Investing activities Capital expenditures (75.0) (55.1) Business acquisitions, net of cash acquired — (1,426.1) Settlement of foreign exchange derivatives — 93.3 Net proceeds from divestiture 7.3 — Other investing activities 2.3 — Net cash used by investing activities (65.4) (1,387.9) Financing activities Debt proceeds — 1,300.0 Purchase of common shares for treasury — (36.4) Cash dividends paid (67.6) (65.2) Repayment of long-term debt (103.8) (6.8) Debt financing costs (2.3) (49.3) Other financing (2.3) (4.2) Net cash (used) provided by financing activities (176.0) 1,138.1 Effect of exchange rate changes on cash (7.2) (30.9) Decrease in cash and cash equivalents (201.5) (56.8) Cash and cash equivalents at beginning of year 641.1 601.2 Cash and cash equivalents at end of period $ 439.6 $ 544.4 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.

 Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to:  Our ability to realize anticipated savings and operational benefits from the realignment of assets, including the closure of manufacturing facilities;  The timing of closings and shifts of production to new facilities related to asset realignments and any unforeseen loss of customers and/or disruptions of service or quality caused by such closings and/or production shifts;  Separation and severance amounts that differ from original estimates;  Amounts for non-cash charges related to asset write-offs and accelerated depreciation realignments of property, plant and equipment, that differ from original estimates;  Our ability to identify and evaluate acquisition targets and consummate acquisitions;  The ability to successfully integrate acquired companies into our operations, retain the management teams of acquired companies, retain relationships with customers of acquired companies, and achieve the expected results of such acquisitions, including whether such businesses will be accretive to our earnings;  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 financial condition of our customers, including the ability of customers (especially those that may be highly leveraged and those with inadequate liquidity) to maintain their credit availability;  The speed and extent of an economic recovery, including the recovery of the housing market;  Our ability to achieve new business gains;  The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks;  Changes in polymer consumption growth rates and laws and regulations regarding the disposal of plastic in jurisdictions where we conduct business;  Changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online;  Fluctuations in raw material prices, quality and supply and in energy prices and supply; 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;  An inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals;  An inability to raise or sustain prices for products or services;  An inability to maintain appropriate relations with unions and employees;  Our ability to continue to pay cash dividends;  The amount and timing of repurchases of our common shares, if any; and  Other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation sa=i&rct=j&q=&esrc=s&frm=1&source=images&cd=&cad=rja&uact=8&ved=0CAcQjRw&url=http://www.mullerquaker.com/products/greek100/greek100-peach-and-passion-fruit&ei=-acYVZq7EIqwyASDjYL4CA&bvm=bv.89381419,d.cWc&psig=AFQjCNGNCQY1_dCN2RPLzxtap_Pu0omTXQ&ust=1427765484498432 POLYONE CORPORATION 25 2015 Revenue: $0.7 Billion At a Glance: Performance Products & Solutions 2015 Revenue by Industry Expanding Profits 5.5% 6.9% 3.8% 3.6% 5.5% 4.3% 6.3% 7.2% 7.7% 8.3% 12-14% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision 11.6% B & C 31% Transportation 19% W & C 16% Industrial 13% Appliances 7% Consumer 5% Packaging 5% E & E 3% Healthcare 1% United States 79% Canada 14% Latin America 5% Asia 2% Key Applications POLYONE CORPORATION 26 2015 Revenue: $1.0 Billion At a Glance: Distribution Key Suppliers ROIC Expanding Profits 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 6.4% 5.9% 6.1% 6.6% 6.5-7.5% 6.6% 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 YTD 2020 Operating Income % of Sales Platinum Vision 15% 53% 2006 3Q 2016 Transportation 24% Healthcare 23% Industrial 16% Consumer 13% E & E 6% Appliances 6% W & C 4% Packaging 4% B & C 4% http://www.polyone.com/Pages/VariationRoot.aspx 27 POLYONE CORPORATION Application Examples POLYONE CORPORATION 28 Luxury Packaging with Gravitech Density Modified Polymers  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 POLYONE CORPORATION 29 Medical Device Housings with Chemically Resistant Engineered Polymers  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 POLYONE CORPORATION 30 Printed Circuit Boards with Thermally Conductive Polymers  Replaces metal by etching circuit designs into thermally conductive plastic  Maintains heat transfer and cooling capabilities of metals  Reduces both weight and cost  Increases the lifetime and reliability of electronic systems POLYONE CORPORATION 31 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 POLYONE CORPORATION 32 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 Source: Outdoor Industry Association POLYONE CORPORATION 33 Fiber Colorants Solutions for clothing, apparel, footwear, automotive & sporting goods  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 POLYONE CORPORATION 34  Improve performance and reduce cost through light-weighting, reduced waste, faster cycle times and extended shelf life  Aligned with megatrend of facing climate and resource challenges:  Sustainability benefits include lower package weight and improved recyclability of package at end of use Shelf-life extension Greater product consistency Recyclability and reduced carbon footprint Color and Special Effects Weight reduction Enhanced product aesthetics High heat resistance Preservative Technology POLYONE CORPORATION 35 Metal Replacement Solutions  Replaces metal in LED lighting  Extends LED durability and life span eliminating hot spots  Greater design flexibility with fewer parts  Weight reduction  Simplifies manufacturing and lowers total production cost POLYONE CORPORATION 36 High-Barrier Packaging Containers  Capability to extrude up to 13 layers  Strong oxygen and moisture vapor transmission protection  Can be made symmetrical or asymmetrical to meet customized needs of broad variety of applications  Barrier protection and superior sensory properties 1 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Below is a reconciliation of non-GAAP financial measures to the most directly comparable measures calculated and presented in accordance with U.S. 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 phase-in 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.

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Weighted-average shares used to compute earnings per common share: Weighted average shares used to compute adjusted earnings per share: Gain from sale of closed facilities

Weighted-average shares used to compute earnings per share: Weighted average shares used to compute adjusted earnings per share: Gain on sale of business

Weighted-average shares used to compute earnings per common share: Weighted average shares used to compute adjusted earnings per share: Taxes paid on gain on sale of business