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Francisco Nakasato, 1700 13295-000 Itupeva San Pablo, Brasil Teléfono: +55 11 4593 9200 Europa Sede central regional de Pommerloch, Luxemburgo 19 Route de Bastogne Pommerloch, Luxemburgo, L-9638 Teléfono: +352 269 050 35 Fax: +352 269 050 45 www.avient.com https://www.avient.com

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Francisco Nakasato, 1700 13295-000 Itupeva Sao Paulo, Brésil Téléphone : +55 11 4593 9200 Europe Siège régional Pommerloch, Luxembourg 19 Route de Bastogne Pommerloch, Luxembourg, L-9638 Téléphone : +352 269 050 35 Télécopie : +352 269 050 45 www.avient.com https://www.avient.com

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.

EPS $0.14 $2.67 $3.04 TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards 90th percentile 84th ESG Ratings Performance 1 10 PEOPLE C U L T U R E I S E V E R Y T H I N G Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $17 million raised since 2010 Diversity & Inclusion 11 2022 RE SU LT S Q4 EBITDA BRIDGE (PRO FORMA TOTAL COMPANY) 13 $ millions CAI: Price / Mix 42 Inflation (20) SEM: Price / Mix 14 Inflation (10) Net Price Benefit 26 Wage and Energy Inflation (13) Clariant Color Integration Synergies 4 Incentives, Other Employee Costs 21 FX (10) Q4 2022 $107 Adjusted Q4 2021 $ 132 Demand (50) Russia Import Sales (3) • Demand contraction especially prevalent in EMEA and Asia • Pricing continues to cover inflation of raw materials, wages and energy PROVEN TRACK RECORD OF STRONG AND IMPROVING FREE CASH FLOW GENERATION 14 • Periods of economic weakness have driven higher levels of cash generation due to working capital management • Anticipate continued strong free cash flow generation and conversion despite global uncertainty 78% 78% 80% 80% 81% 78% 84% 83% 80% 0% 30% 40% 50% 60% 70% 80% 90% 2014 2015 2016 2017 2018 2019 2020 2021 2022 0 50 100 150 200 250 300 350 400 re e as h F lo w C o n ve rs io n re e as h F lo w FCF $ AVNT FCF Conversion % S&P FCF Conversion % Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA. 2020 is pro forma for Clariant Color and 2022 is pro forma for Avient Protective Materials

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, 2023 December 31, 2022 ASSETS Current assets: Cash and cash equivalents $ 528.7 $ 641.1 Accounts receivable, net 506.4 440.6 Inventories, net 359.0 372.7 Other current assets 116.6 115.3 Total current assets 1,510.7 1,569.7 Property, net 1,007.4 1,049.2 Goodwill 1,705.7 1,671.9 Intangible assets, net 1,614.7 1,597.6 Other non-current assets 213.3 196.6 Total assets $ 6,051.8 $ 6,085.0 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term debt $ 2.2 $ 2.2 Accounts payable 428.7 454.4 Accrued expenses and other current liabilities 345.6 412.8 Total current liabilities 776.5 869.4 Non-current liabilities: Long-term debt 2,179.2 2,176.7 Pension and other post-retirement benefits 67.3 67.2 Deferred income taxes 304.8 342.5 Other non-current liabilities 370.3 276.4 Total non-current liabilities 2,921.6 2,862.8 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,334.7 2,334.5 Noncontrolling interest 19.0 18.3 Total equity 2,353.7 2,352.8 Total liabilities and equity $ 6,051.8 $ 6,085.0 11 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Six Months Ended June 30, 2023 2022 Operating Activities Net income $ 42.7 $ 169.2 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 96.2 71.1 Accelerated depreciation 1.9 3.2 Share-based compensation expense 6.5 6.3 Changes in assets and liabilities, net of the effect of acquisitions: Increase in accounts receivable (66.6) (133.2) Decrease (increase) in inventories 14.0 (45.9) (Decrease) increase in accounts payable (26.2) 98.5 Accrued expenses and other assets and liabilities, net (93.2) (62.5) Net cash (used) provided by operating activities (24.7) 106.7 Investing activities Capital expenditures (45.9) (34.0) Settlement of foreign exchange derivatives — 75.1 Net proceeds from divestiture 7.3 — Net cash used by investing activities (38.6) 41.1 Financing activities Purchase of common shares for treasury — (36.4) Cash dividends paid (45.0) (43.5) Repayment of long-term debt (1.0) (4.4) Other financing (2.3) (4.1) Net cash used by financing activities (48.3) (88.4) Effect of exchange rate changes on cash (0.8) (15.5) Decrease in cash and cash equivalents (112.4) 43.9 Cash and cash equivalents at beginning of year 641.1 601.2 Cash and cash equivalents at end of period $ 528.7 $ 645.1 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.

Francisco Nakasato, 1700 13295-000 Itupeva Sao Paulo, Brazil ‎+55 11 4593 9200:ٹیلیفون یورپ Europe Pommerloch, Luxembourg 19 Route de Bastogne Pommerloch, Luxembourg, L-9638 ‎+352 269 050 35:ٹیلیفون ‎+352 269 050 45:فیکس www.avient.com https://www.avient.com