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 March 31, 2023 2022 Sales: Color, Additives and Inks $ 537.0 $ 649.5 Specialty Engineered Materials 309.7 243.1 Corporate (1.0) (0.4) Sales $ 845.7 $ 892.2 Gross margin: Color, Additives and Inks $ 162.0 $ 192.1 Specialty Engineered Materials 93.9 68.4 Corporate (8.3) (6.1) Gross margin $ 247.6 $ 254.4 Selling and administrative expense: Color, Additives and Inks $ 96.4 $ 97.6 Specialty Engineered Materials 50.8 30.1 Corporate 43.3 24.5 Selling and administrative expense $ 190.5 $ 152.2 Operating income: Color, Additives and Inks $ 65.6 $ 94.5 Specialty Engineered Materials 43.1 38.3 Corporate (51.6) (30.6) Operating income $ 57.1 $ 102.2 Depreciation & amortization: Color, Additives and Inks $ 25.8 $ 26.0 Specialty Engineered Materials 21.2 7.8 Corporate 3.5 3.8 Depreciation & Amortization $ 50.5 $ 37.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 91.4 $ 120.5 Specialty Engineered Materials 64.3 46.1 Corporate (48.1) (26.8) Other income (expense), net 0.7 (0.6) EBITDA $ 108.3 $ 139.2 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Rosenau Page 84 United States 81% Europe Canada 15% Asia 2011 Revenue: $0.9 Billion2011 Revenue: $0.9 Billion SolutionsSolutions At a Glance Europe $400 $600 $800 $1,000 $1,200 0.0% 2.0% 4.0% 6.0% 8.0% 10.0% 12.0% 14.0% 2006 2007 2008 2009 2010 2011 2015 S a le s ($ m il li o s) O p e ra ti g I co m e % o f S a le s Operating Income % and Revenue 2011 Revenue by Industry Segment2011 Revenue by Industry Segment Expanding ProfitsExpanding Profits OI % of Sales Sales 9-12% Appliance 4% Building & Construction 30% Wire & Cable 17% Electrical & Electronics Consumer 4% Packaging 9% Industrial 20% Misc.

Nikrant Page 67 United States 36% Europe 36% Canada 2% Asia 20% Latin America 2011 Revenue: $0.6 Billion2011 Revenue: $0.6 Billion SolutionsSolutions At a Glance Appliance 6% Building & Construction 3% Wire & Cable 14% Electrical & Electronics 14%Consumer 21% Packaging 5% Industrial 8% Misc. 3% HealthCare 5% Transportation 21% America 6% 2011 Revenue by Industry Segment2011 Revenue by Industry Segment 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% 12-16% 2006 2007 2008 2009 2010 2011 2015 Operating Income % of Sales Target Expanding ProfitsExpanding Profits Page 68 Value Proposition • GSEM is a global leader providing complete specialty solutions encompassing innovative technologies and services to enable customer success Transformation Highlights • Dramatic turnaround of the Engineered Materials business through mix improvement and specialty focus Value Proposition and Transformation Highlights improvement and specialty focus • GLS acquisition successfully integrated, having more than doubled earnings in 3 years • PolyOne culture and strategy now engrained worldwide • Expansion into healthcare with dedicated resources > $15B Addressable Market Page 69 • Polymer design, formulation and service expertise • Broad, global technology base and regional centers of excellence • Ten innovation centers around the world Key Differentiators • Ten innovation centers around the world • Specialty brand leadership with PolyOne, GLS, NEU and ECCOH • Ability to leverage global key account team Page 70 From Volume Commodity-driven product portfolio To Value Specialty technology and solutions EM North America Transformation Volume Sales Gross Margin $ Mix Transformation – Executing the Strategy 2006 2011 2006 2011 2006 2011 Page 71 $12 $29 Operating Income ($ in millions) • Provided access to new customers in specialized, high-growth markets such as healthcare and consumer • Strategic partner to many of the world’s best-known companies GLS Integration Success 16.9% 8.2% 2007 2011 2007 2011 Working Capital % of Sales • Complementary global footprint provided additional cross-selling opportunities • Opportunity to expand margins and drive working capital improvement while remaining customer-focused Page 72 $1.3 $27.6 2006 2011 Healthcare Revenue • Investment in dedicated healthcare team to drive penetration and growth • Leverage product portfolio globally & win specialty business Areas of Focus $10.5 $117.9 2006 2011 Consumer Revenue 2006 2011globally & win specialty business in targeted markets • Aggressively commercialize specialty innovation platforms • Utilize our innovation centers to influence OEM design (Revenue in $ millions) Page 73 • Carbon Nanotube Formulations � Applications: Semiconductor equipment, hard drives � Customer benefits: Scrap cost reduction and clean conductivity • Thermally Conductive Solutions Applications: Sockets and bulb holders for LED lighting Key Innovations � Applications: Sockets and bulb holders for LED lighting � Customer benefits: Cost reduction, energy saving, and design flexibility • FDA-Regulated TPEs � Applications: Food packaging seals, intravenous delivery systems, medical stoppers, prefilled syringes � Customer benefits: Clean and safe elastomers for highly regulated applications Page 74 Critical Imperatives and 2015 Goal Critical Imperatives • Commercialize critical new technology platforms • Manage the mix as we continue to drive the transformation • Global translation of commercial successes 2015 Goal • 12 - 16% return on sales Page 75 Page 76

Combined, these improvements enabled the company to compete on quality and operate profitably while gaining new business.

In addition, the profit margin on this product was about 30% higher than that of other models.

Date de commencement d'activité 01/01/2008 Origine du fonds ou de l'activité Création Mode d'exploitation Exploitation directe OBSERVATIONS ET RENSEIGNEMENTS COMPLEMENTAIRES - Mention du 01/01/2009 Par décret n° 2008-146 du 15 février 2008, la compétence commerciale du tribunal de grande instance de Bonneville a été supprimée au 1er janvier 2009 au profit du tribunal de commerce d'Annecy créé à compter de cette date.

Leek, United Kingdom 19. Knowsley, United Kingdom 20. This organization is CEO led, cross- sector, not-for-profit made up of approximately 50 companies.

Leek, United Kingdom 19. Knowsley, United Kingdom 20. This organization is CEO led, cross- sector, not-for-profit made up of approximately 50 companies.

We believe there are significant opportunities for us to drive profitable organic revenue growth and innovation, leveraging our culture of strong customer focus and portfolio of differentiated technologies. 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 (Unaudited) (In millions) Year Ended December 31, 2023 2022 ASSETS Current assets: Cash and cash equivalents $ 545.8 $ 641.1 Accounts receivable, net 399.9 440.6 Inventories, net 347.0 372.7 Other current assets 114.9 115.3 Total current assets 1,407.6 1,569.7 Property, net 1,028.9 1,049.2 Goodwill 1,719.3 1,671.9 Intangible assets, net 1,590.8 1,597.6 Operating lease assets, net 65.3 60.4 Other non-current assets 156.6 136.2 Total assets $ 5,968.5 $ 6,085.0 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 9.5 $ 2.2 Accounts payable 432.3 454.4 Current operating lease obligations 16.6 17.0 Accrued expenses and other current liabilities 315.2 395.8 Total current liabilities 773.6 869.4 Non-current liabilities: Long-term debt 2,070.5 2,176.7 Pension and other post-retirement benefits 67.2 67.2 Deferred income taxes 281.6 342.5 Non-current operating lease obligations 43.2 40.9 Other non-current liabilities 394.4 235.5 Total non-current liabilities 2,856.9 2,862.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,319.2 2,334.5 Noncontrolling interest 18.8 18.3 Total equity 2,338.0 2,352.8 Total liabilities and equity $ 5,968.5 $ 6,085.0 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Year Ended December 31, 2023 2022 Operating activities Net income $ 76.2 $ 703.4 Adjustments to reconcile net income to net cash provided by operating activities: Gain on sale of business, net of tax expense — (550.1) Depreciation and amortization 186.9 157.6 Accelerated depreciation 1.9 5.5 Amortization of inventory step-up — 34.4 Deferred income tax (benefit) expense (61.3) 0.5 Share-based compensation expense 13.2 13.2 Changes in assets and liabilities, net of the effect of acquisitions: Decrease in accounts receivable 38.6 32.6 Decrease in inventories 24.3 14.0 (Decrease) increase in accounts payable (22.2) 10.7 (Decrease) increase in pension and other post-retirement benefits (15.1) 7.1 Taxes paid on gain on sale of business (104.1) (2.8) Accrued expenses and other assets and liabilities, net 63.2 (27.7) Net cash provided by operating activities 201.6 398.4 Investing activities Capital expenditures (119.4) (105.5) Business acquisitions, net of cash acquired — (1,426.1) Settlement of foreign exchange derivatives — 93.3 Net proceeds from divestiture 7.3 928.2 Proceeds from plant closures 7.6 6.1 Other investing activities 10.3 — Net cash used by investing activities (94.2) (504.0) Financing activities Debt offering proceeds — 1,300.0 Purchase of common shares for treasury — (36.4) Cash dividends paid (90.2) (86.8) Repayment of long-term debt (105.8) (956.8) Payments on withholding tax on share awards (3.4) (4.3) Debt financing costs (2.3) (49.3) Net cash (used) provided by financing activities (201.7) 166.4 Effect of exchange rate changes on cash (1.0) (20.9) (Decrease) increase in cash and cash equivalents (95.3) 39.9 Cash and cash equivalents at beginning of year 641.1 601.2 Cash and cash equivalents at end of year $ 545.8 $ 641.1 12 Attachment 6 Avient Corporation Business Segment Operations (Unaudited) (In millions) Operating income 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 December 31, Year Ended December 31, 2023 2022 2023 2022 Sales: Color, Additives and Inks $ 459.4 $ 490.8 $ 2,007.4 $ 2,355.0 Specialty Engineered Materials 259.8 300.8 1,138.2 1,044.4 Corporate (0.2) (1.2) (2.8) (2.5) Sales $ 719.0 $ 790.4 $ 3,142.8 $ 3,396.9 Gross margin: Color, Additives and Inks $ 148.3 $ 134.5 $ 631.2 $ 681.3 Specialty Engineered Materials 78.1 82.4 341.8 283.7 Corporate (17.5) (44.9) (80.5) (82.3) Gross margin $ 208.9 $ 172.0 $ 892.5 $ 882.7 Selling and administrative expense: Color, Additives and Inks $ 86.5 $ 90.2 $ 371.3 $ 380.3 Specialty Engineered Materials 48.7 47.2 199.3 143.6 Corporate 30.6 34.2 125.1 115.5 Selling and administrative expense $ 165.8 $ 171.6 $ 695.7 $ 639.4 Operating income: Color, Additives and Inks $ 61.8 $ 44.3 $ 259.9 $ 301.0 Specialty Engineered Materials 29.4 35.2 142.5 140.1 Corporate (48.1) (79.1) (205.6) (197.8) Operating income $ 43.1 $ 0.4 $ 196.8 $ 243.3 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

While we anticipate weakness in consumer and transportation end markets, we see opportunities for growth in our largest end market, packaging, as well as strength in our high profit portfolios in defense and healthcare. 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) March 31, 2025 December 31, 2024 ASSETS Current assets: Cash and cash equivalents $ 456.0 $ 544.5 Accounts receivable, net 489.6 399.5 Inventories, net 372.8 346.8 Other current assets 111.9 131.3 Total current assets 1,430.3 1,422.1 Property, net 951.8 955.3 Goodwill 1,684.0 1,659.7 Intangible assets, net 1,464.5 1,450.4 Other non-current assets 280.6 323.6 Total assets $ 5,811.2 $ 5,811.1 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 7.8 $ 7.7 Accounts payable 422.2 417.4 Accrued expenses and other current liabilities 268.2 331.0 Total current liabilities 698.2 756.1 Non-current liabilities: Long-term debt 2,061.3 2,059.3 Deferred income taxes 268.0 260.4 Other non-current liabilities 469.3 405.7 Total non-current liabilities 2,798.6 2,725.4 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,298.3 2,313.8 Noncontrolling interest 16.1 15.8 Total equity 2,314.4 2,329.6 Total liabilities and equity $ 5,811.2 $ 5,811.1 10 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Three Months Ended March 31, 2025 2024 Operating activities Net (loss) income $ (19.9) $ 49.7 Adjustments to reconcile net (loss) income to net cash used by operating activities: Depreciation and amortization 45.3 44.3 Cloud-based enterprise resource planning system impairment 71.6 — Share-based compensation expense 2.4 3.3 Changes in assets and liabilities: Increase in accounts receivable (83.7) (81.9) Increase in inventories (20.3) (12.3) (Decrease) increase in accounts payable (1.0) 1.7 Environmental insurance recovery 34.0 — Decrease in incentive accruals (53.1) (16.8) Accrued expenses and other assets and liabilities, net (26.4) (30.8) Net cash used by operating activities (51.1) (42.8) Investing activities Capital expenditures (12.5) (24.4) Proceeds from plant closures — 2.0 Other investing activities — (2.1) Net cash used by investing activities (12.5) (24.5) Financing activities Payments on long-term borrowings — (2.7) Cash dividends paid (24.7) (23.5) Other financing activities (3.6) (1.9) Net cash used by financing activities (28.3) (28.1) Effect of exchange rate changes on cash 3.4 (6.1) Decrease in cash and cash equivalents (88.5) (101.5) Cash and cash equivalents at beginning of year 544.5 545.8 Cash and cash equivalents at end of period $ 456.0 $ 444.3 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. Three Months Ended March 31, 2025 2024 Sales: Color, Additives and Inks $ 519.7 $ 515.3 Specialty Engineered Materials 308.4 314.4 Corporate (1.5) (0.7) Sales $ 826.6 $ 829.0 Gross margin: Color, Additives and Inks $ 173.1 $ 171.2 Specialty Engineered Materials 97.8 107.0 Corporate (7.7) — Gross margin $ 263.2 $ 278.2 Selling and administrative expense: Color, Additives and Inks $ 94.5 $ 96.4 Specialty Engineered Materials 50.7 53.6 Corporate 117.3 34.2 Selling and administrative expense $ 262.5 $ 184.2 Operating income: Color, Additives and Inks $ 78.6 $ 74.8 Specialty Engineered Materials 47.1 53.4 Corporate (125.0) (34.2) Operating income $ 0.7 $ 94.0 Depreciation & amortization: Color, Additives and Inks $ 21.7 $ 21.9 Specialty Engineered Materials 21.5 19.6 Corporate 2.1 2.8 Depreciation & amortization $ 45.3 $ 44.3 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 100.3 $ 96.7 Specialty Engineered Materials 68.6 73.0 Corporate (122.9) (31.4) Other expense, net (0.4) (0.9) EBITDA $ 45.6 $ 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) — Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA $ 144.7 $ 143.1 12 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses operating income before special items to assess performance and allocate resources because senior management believes that this measure is most useful in understanding current profitability levels and how it may serve as a basis for future performance.