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) June 30, 2024 December 31, 2023 ASSETS Current assets: Cash and cash equivalents $ 489.4 $ 545.8 Accounts receivable, net 486.6 399.9 Inventories, net 365.9 347.0 Other current assets 117.2 114.9 Total current assets 1,459.1 1,407.6 Property, net 1,019.9 1,028.9 Goodwill 1,685.1 1,719.3 Intangible assets, net 1,515.7 1,590.8 Other non-current assets 228.0 221.9 Total assets $ 5,907.8 $ 5,968.5 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 657.7 $ 9.5 Accounts payable 435.2 432.3 Accrued expenses and other current liabilities 405.3 331.8 Total current liabilities 1,498.2 773.6 Non-current liabilities: Long-term debt 1,420.8 2,070.5 Pension and other post-retirement benefits 63.3 67.2 Deferred income taxes 276.3 281.6 Other non-current liabilities 315.0 437.6 Total non-current liabilities 2,075.4 2,856.9 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,317.5 2,319.2 Noncontrolling interest 16.7 18.8 Total equity 2,334.2 2,338.0 Total liabilities and equity $ 5,907.8 $ 5,968.5 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Six Months Ended June 30, 2024 2023 Operating Activities Net income $ 83.5 $ 42.7 Adjustments to reconcile net income to net cash provided (used) by operating activities: Depreciation and amortization 88.4 96.2 Accelerated depreciation 0.8 1.9 Share-based compensation expense 9.0 6.5 Changes in assets and liabilities: Increase in accounts receivable (97.0) (66.6) (Increase) decrease in inventories (27.3) 14.0 Increase (decrease) in accounts payable 11.9 (26.2) Taxes paid on gain on sale of business — (103.0) Accrued expenses and other assets and liabilities, net (6.2) 9.8 Net cash provided (used) by operating activities 63.1 (24.7) Investing activities Capital expenditures (55.8) (45.9) Net proceeds from divestiture — 7.3 Proceeds from plant closures 3.4 — Other investing activities (2.1) — Net cash used by investing activities (54.5) (38.6) Financing activities Cash dividends paid (47.0) (45.0) Repayment of long-term debt (4.5) (1.0) Other financing activities (3.3) (2.3) Net cash used by financing activities (54.8) (48.3) Effect of exchange rate changes on cash (10.2) (0.8) Decrease in cash and cash equivalents (56.4) (112.4) Cash and cash equivalents at beginning of year 545.8 641.1 Cash and cash equivalents at end of period $ 489.4 $ 528.7 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.

WHAT WE DO: WE ARE A FORMULATOR CUSTOM FORMULATION 6 N OVE MBE R 2 , 2023 W E BCAS T P RE S E N TAT I O N 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 8 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 Formulations9 10 AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES 10 Q 3 P E RFO RMAN CE 15.4% 16.3% 2022 PF 2023 Results vs.

Solutions that Support the Circular Economy REDUCED ENERGY USE CESA™ Dry Additives CESA™ Release Additives OnCap™ CTR Process Optimization ColorMatrix™ Joule™ & Smartheat™ Infrared Absorber Specialty Low Cure Inks SiteCool™ Infrared Absorption Technologies BIO-DERIVED CONTENT reSound™ OM Bio-Derived Thermoplastic Elastomers reFlex™ Bio-Derived Plasticizer OnCap™ Bio Additives OnColor™ Bio Colorants reSound™ Natural Fiber Reinforced Formulations LIGHTWEIGHTING Glasforms™ Pultrusion Technologies Polystrand™ Continuous Fiber Composites IMPROVED RECYCABILITY CESA™ IR Black Additives CESA™ Extend Additives ColorMatrix™ Lactra™ SX Light Blocking Additive for PET ColorMatrix™ Ultimate™ UV Light Barrier ColorMatrix™ Capture™ Oxygen Scavenger for PET ColorMatrix™ Triple A™ Acetaldehyde Scavenging Additives ColorMatrix™ Reprize™ IV Builder for PET OnColor™ IR Sortable Black for Recyclable Packaging Bergadur™ Post-Industrial Recycled Content Polyester Formulations Nymax™ PIR Post-Industrial Recycled Nylon Formulations Maxxam™ FR Flame Retardant Polyolefin Formulations Predictions Gartner predicts circular economies will replace linear economies in 10 years, noting that supply chain leaders must adapt to circular models in order to keep up in a marketplace with a growing emphasis on sustainability.

In this study, Avient’s Trilliant™ HC8900 and Edgetek™ ET8900 thermoplastics were tested alongside competitive materials used for various medical and consumer device enclosures.

SELECTION GUIDE reSound™ REC Recycled Content Thermoplastic Elastomers Post-industrial and post-consumer recycled TPEs To help brands reach their sustainability goals, reSound™ REC post-industrial recycled (PIR) and post- consumer recycled (PCR) TPE formulations utilize 9–83% recycled content. reSound REC TPEs can be overmolded onto polypropylene (PP), polycarbonate (PC), acrylonitrile butadiene styrene (ABS) and PC/ABS blends, and are suitable for injection molding.

said, "Our balance sheet and cash flow remain very strong, and we ended June with over Polystrand establishes us with an immediate leadership position in new, next generation thermoplastic composites that combine high strength characteristics of a thermoset with the design freedom of thermoplastics." Condensed Consolidated Balance Sheets

HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 41 https://www.avient.com/products/thermoplastic-elastomers/resound-ultra-low-carbon-footprint-tpes https://www.avient.com/products/polymer-additives/antioxidant-additives/cesa-nox-a4r-additive-enhanced-recycling https://www.prseventeurope.com/prse2024/en/page/2023-winners https://usplasticspact.org/ https://www.prseventeurope.com/prse2024/en/page/2023-winners RENEW Avient’s portfolio of RENEW solutions are designed to advance the circular economy. HIGHLIGHTS from 2023: • Meet aggressive sustainability goals • Develop strategies to minimize plastic waste • Increase post consumer recycle (PCR) utilization and PCR availability • Meet legislation requirements • Solutions enabling increased use of PCR content • Specialty solutions incorporating recycle and biobased content • PCR Color Predictive Service, enabling increased use of recycled content • Avient Design Services to enable circular solutions RENEW Packaging Consumer Transportation 35-60% BIO-RENEWABLE CONTENT reSound™ BIO Thermoplastic Elastomers 35% LOWER CARBON EMISSIONS ColorMatrix™ SmartHeat™ RHC PCR Performance Additives EXPANDS PCR USAGE Design for Recycling CycleWorks™ Center for Mechanical Recycling 60% Nymax™ REC Recycled Nylon Formulations LEARN MORE RECYCLE CONTENT ENABLES 100% PCR UTILIZATION Cesa™ Nox A4R Additives for Enhanced Recycling BIOBASED FIBER ENABLING 10-20% LIGHTER WEIGHT SOLUTIONS Dyneema® SB301 Biobased UD Fiber 85% PCR Color Prediction Service Winner: Innovation Award, Plastics Industry Association & Product Technology Innovation, Plastics Recycling Awards Europe 2023 OF CONSUMERS CHOOSE BASED ON COLOR 35-40% RECYCLED CONTENT reSound™ REC PCR TPE for Automotive Interiors HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 42Sustainability Report | 2023 42 https://www.avient.com/products/thermoplastic-elastomers/resound-bio-thermoplastic-elastomers https://www.avient.com/products/polymer-additives/reheat-additives-pet/colormatrix-smartheat-rhc https://www.avient.com/resource-center/services/cycleworks-innovation-center-plastic-recycling https://www.avient.com/products/engineered-polymer-formulations/sustainable-formulations/nymax-rec-recycled-nylon-formulations https://www.avient.com/products/polymer-additives/antioxidant-additives https://www.dyneema.com/latest-news/dyneema-unveils-breakthrough-innovation https://www.avient.com/products/thermoplastic-elastomers/resound-rec-recycled-content-thermoplastic-elastomers REDUCE Avient’s portfolio of REDUCE solutions include design and materials solutions that enable customers to reduce weight, energy consumption and emissions. Through this data, we create safety data sheets and customer certification statements for intended use and product safety improvements.

HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 41 https://www.avient.com/products/thermoplastic-elastomers/resound-ultra-low-carbon-footprint-tpes https://www.avient.com/products/polymer-additives/antioxidant-additives/cesa-nox-a4r-additive-enhanced-recycling https://www.prseventeurope.com/prse2024/en/page/2023-winners https://usplasticspact.org/ https://www.prseventeurope.com/prse2024/en/page/2023-winners RENEW Avient’s portfolio of RENEW solutions are designed to advance the circular economy. HIGHLIGHTS from 2023: • Meet aggressive sustainability goals • Develop strategies to minimize plastic waste • Increase post consumer recycle (PCR) utilization and PCR availability • Meet legislation requirements • Solutions enabling increased use of PCR content • Specialty solutions incorporating recycle and biobased content • PCR Color Predictive Service, enabling increased use of recycled content • Avient Design Services to enable circular solutions RENEW Packaging Consumer Transportation 35-60% BIO-RENEWABLE CONTENT reSound™ BIO Thermoplastic Elastomers 35% LOWER CARBON EMISSIONS ColorMatrix™ SmartHeat™ RHC PCR Performance Additives EXPANDS PCR USAGE Design for Recycling CycleWorks™ Center for Mechanical Recycling 60% Nymax™ REC Recycled Nylon Formulations LEARN MORE RECYCLE CONTENT ENABLES 100% PCR UTILIZATION Cesa™ Nox A4R Additives for Enhanced Recycling BIOBASED FIBER ENABLING 10-20% LIGHTER WEIGHT SOLUTIONS Dyneema® SB301 Biobased UD Fiber 85% PCR Color Prediction Service Winner: Innovation Award, Plastics Industry Association & Product Technology Innovation, Plastics Recycling Awards Europe 2023 OF CONSUMERS CHOOSE BASED ON COLOR 35-40% RECYCLED CONTENT reSound™ REC PCR TPE for Automotive Interiors HOME | Contents | Message from the CEO | About Us | People | Products | Planet | Performance | Metrics | Index Sustainability Report | 2023 42Sustainability Report | 2023 42 https://www.avient.com/products/thermoplastic-elastomers/resound-bio-thermoplastic-elastomers https://www.avient.com/products/polymer-additives/reheat-additives-pet/colormatrix-smartheat-rhc https://www.avient.com/resource-center/services/cycleworks-innovation-center-plastic-recycling https://www.avient.com/products/engineered-polymer-formulations/sustainable-formulations/nymax-rec-recycled-nylon-formulations https://www.avient.com/products/polymer-additives/antioxidant-additives https://www.dyneema.com/latest-news/dyneema-unveils-breakthrough-innovation https://www.avient.com/products/thermoplastic-elastomers/resound-rec-recycled-content-thermoplastic-elastomers REDUCE Avient’s portfolio of REDUCE solutions include design and materials solutions that enable customers to reduce weight, energy consumption and emissions. Through this data, we create safety data sheets and customer certification statements for intended use and product safety improvements.

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, 2022 December 31, 2021 ASSETS Current assets: Cash and cash equivalents $ 645.1 $ 601.2 Accounts receivable, net 752.6 642.3 Inventories, net 494.0 461.1 Other current assets 128.4 122.4 Total current assets 2,020.1 1,827.0 Property, net 638.9 676.1 Goodwill 1,256.8 1,286.4 Intangible assets, net 867.2 925.2 Operating lease assets, net 62.7 74.1 Other non-current assets 197.9 208.4 Total assets $ 5,043.6 $ 4,997.2 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 607.7 $ 8.6 Accounts payable 634.0 553.9 Current operating lease obligations 21.4 24.2 Accrued expenses and other current liabilities 307.5 353.9 Total current liabilities 1,570.6 940.6 Non-current liabilities: Long-term debt 1,249.1 1,850.3 Pension and other post-retirement benefits 95.0 100.0 Deferred income taxes 106.6 100.6 Non-current operating lease obligations 41.8 50.1 Other non-current liabilities 154.7 165.1 Total non-current liabilities 1,647.2 2,266.1 SHAREHOLDERS' EQUITY Avient shareholders’ equity 1,809.7 1,774.7 Noncontrolling interest 16.1 15.8 Total equity 1,825.8 1,790.5 Total liabilities and equity $ 5,043.6 $ 4,997.2 10 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Six Months Ended June 30, 2022 2021 Operating Activities Net income $ 169.2 $ 149.1 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 71.1 69.5 Accelerated depreciation and amortization 3.2 1.4 Share-based compensation expense 6.3 5.6 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (133.2) (196.1) Increase in inventories (45.9) (88.1) Increase in accounts payable 98.5 108.4 Decrease in pension and other post-retirement benefits (9.9) (9.2) (Decrease) increase in accrued expenses and other assets and liabilities, net (52.6) 27.5 Net cash provided by operating activities 106.7 68.1 Investing activities Capital expenditures (34.0) (42.1) Settlement of cross-currency swaps 75.1 — Net cash proceeds used by other assets — (2.0) Net cash provided (used) by investing activities 41.1 (44.1) Financing activities Purchase of common shares for treasury (36.4) (4.2) Cash dividends paid (43.5) (38.8) Repayment of long-term debt (4.4) (4.4) Payments of withholding tax on share awards (4.1) (4.2) Net cash used by financing activities (88.4) (51.6) Effect of exchange rate changes on cash (15.5) (5.7) Increase (decrease) in cash and cash equivalents 43.9 (33.3) Cash and cash equivalents at beginning of year 601.2 649.5 Cash and cash equivalents at end of period $ 645.1 $ 616.2 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.

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.