The comprehensive online publication highlights progress made toward Avient’s 2030 Sustainability Goals, along with other news and information on ESG matters. Three Months Ended June 30, Six Months Ended June 30, Reconciliation to Consolidated Statements of Income 2022 2021 2022 2021 Sales $ 1,302.4 $ 1,235.2 $ 2,596.2 $ 2,397.5 Gross margin - GAAP 303.8 288.7 597.5 591.1 Special items in gross margin (Attachment 3) (2.0) 12.6 3.8 10.4 Adjusted gross margin $ 301.8 $ 301.3 $ 601.3 $ 601.5 Adjusted gross margin as a percent of sales 23.3 % 24.4 % 23.2 % 25.1 % Operating income - GAAP 129.5 108.1 258.1 228.5 Special items in operating income (Attachment 3) 4.3 14.2 12.1 16.6 Adjusted operating income $ 133.8 $ 122.3 $ 270.2 $ 245.1 Adjusted operating income as a percent of sales 10.3 % 9.9 % 10.4 % 10.2 % The table below reconciles pre-special income tax expense and the pre-special effective tax rate to their most comparable US GAAP figures. Three Months Ended June 30, 2022 2021 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results Income from before income taxes $114.7 $ 3.4 $ 118.1 $ 89.8 $ 14.2 $ 104.0 Income tax expense - GAAP (30.0) — (30.0) (20.4) — (20.4) Income tax impact of special items (Attachment 3) — (0.8) (0.8) — (3.4) (3.4) Tax adjustments (Attachment 3) — 2.5 2.5 — 0.9 0.9 Income tax (expense) benefit $ (30.0) $ 1.7 $ (28.3) $ (20.4) $ (2.5) $ (22.9) Effective Tax Rate(1) 26.1 % 23.9 % 22.7 % 22.0 % (1) Rates may not recalculate from figures presented herein due to rounding 13 Six Months Ended June 30, 2022 2021 GAAP Results Special Items Adjusted Results GAAP Results Special Items Adjusted Results Income from before income taxes $225.8 $ 11.1 $ 236.9 $192.4 $ 16.6 $ 209.0 Income tax expense - GAAP (56.6) — (56.6) (43.3) — (43.3) Income tax impact of special items (Attachment 3) — (2.8) (2.8) — (4.3) (4.3) Tax adjustments (Attachment 3) — 4.0 4.0 — 2.0 2.0 Income tax (expense) benefit $ (56.6) $ 1.2 $ (55.4) $ (43.3) $ (2.3) $ (45.6) Effective Tax Rate(1) 25.0 % 23.4 % 22.5 % 21.8 % (1) Rates may not recalculate from figures presented herein due to rounding Reconciliation of EBITDA by Segment Three Months Ended June 30, Six Months Ended June 30, 2022 2021 2022 2021 Operating income: Color, Additives and Inks $ 93.6 $ 86.3 $ 188.1 $ 175.1 Specialty Engineered Materials 36.6 37.3 76.3 71.5 Distribution 27.1 23.7 51.3 47.7 Corporate and eliminations (27.8) (39.2) (57.6) (65.8) Operating income $ 129.5 $ 108.1 $ 258.1 $ 228.5 Items below OI in Corporate: Other income, net $ 1.4 $ 1.2 $ 0.8 $ 2.7 Depreciation & amortization: Color, Additives and Inks $ 25.9 $ 25.3 $ 51.9 $ 52.6 Specialty Engineered Materials 7.7 8.1 15.5 15.9 Distribution 0.2 0.2 0.4 0.4 Corporate and eliminations 2.7 0.2 6.5 2.0 Depreciation & Amortization $ 36.5 $ 33.8 $ 74.3 $ 70.9 EBITDA: Color, Additives and Inks $ 119.5 $ 111.6 $ 240.0 $ 227.7 Specialty Engineered Materials 44.3 45.4 91.8 87.4 Distribution 27.3 23.9 51.7 48.1 Corporate and eliminations (25.1) (39.0) (51.1) (63.8) Other income, net 1.4 1.2 $ 0.8 $ 2.7 EBITDA $ 167.4 $ 143.1 $ 333.2 $ 302.1 14 Three Months Ended June 30, Six Months Ended June 30, Reconciliation to EBITDA and Adjusted EBITDA: 2022 2021 2022 2021 Net income – GAAP $ 84.7 $ 69.4 $ 169.2 $ 149.1 Income tax expense 30.0 20.4 56.6 43.3 Interest expense 16.2 19.5 33.1 38.8 Depreciation and amortization 36.5 33.8 74.3 70.9 EBITDA $ 167.4 $ 143.1 $ 333.2 $ 302.1 Special items, before tax 3.4 14.2 11.1 16.6 Depreciation and amortization included in special items (1.1) 1.4 (3.2) 0.8 Adjusted EBITDA $ 169.7 $ 158.7 $ 341.1 $ 319.5 Three Months Ended June 30, 2021 Reconciliation to Condensed Consolidated Statements of $ EPS Net income attributable to Avient shareholders $ 68.8 $ 0.74 Special items, after tax (Attachment 3) 11.7 0.13 Adjusted net income / EPS - excluding special items 80.5 0.87 FX adjustment (4.9) (0.05) Adjusted net income / EPS - excluding special items, adjusted for FX $ 75.6 $ 0.82 NEWS RELEASE Attachment 1

Please verify compliance prior submitting invoice. https://supplier.coupa.com/help/how-to-set-up-e-invoicing/ 6 In the Subtotal section, you can enter values and select tax rates for shipping, handling, and miscellaneous costs. Applicable tax rates are determined by the tax code on the invoice. The tax rate is a government regulated rate to be paid to the tax authorities as part of the sale and it is shown as a percentage.

The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations. Platform operating income mix percentage 2005* 2008* 2010* 2013 2014 2015 YTD Global Color, Additives and Inks $ 4.3 $ 28.1 $ 37.7 $104.0 $124.9 $ 107.9 Global Specialty Engineered Materials 0.4 17.6 49.7 57.2 72.4 63.2 Designed Structures and Solutions - - - 33.4 45.1 12.0 Specialty Platform $ 4.7 $ 45.7 $ 87.4 $194.6 $242.4 $ 183.1 Performance Products and Solutions 75.7 31.3 54.0 56.0 63.1 43.9 Distribution 19.5 28.1 42.0 63.3 68.2 52.4 Joint ventures 91.9 28.6 18.9 - - — Corporate and eliminations (51.5) (425.1) (27.7) (82.4) (218.6) (59.8) Operating income (loss) GAAP $140.3 $(291.4) $174.6 $231.5 $155.1 $ 219.6 Less: Corporate operating expense 51.5 425.1 27.7 82.4 218.6 59.8 Operating income excluding Corporate $191.8 $133.7 $202.3 $313.9 $373.7 $ 279.4 Specialty platform operating mix percentage 2% 34% 43% 62% 65% 66% Adjusted EPS is calculated as follows: Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y Net income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - Special items, after tax(1) (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 101.0 Tax adjustments(2) (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 (10.5) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 2 Adjusted EPS 2011 Q3 2012 Q3 2013 Q3 2014 Q3 2015 Q3 Net income attributable to PolyOne common shareholders $ 16.0 $ 19.4 $ 23.2 $ 32.3 $ 44.5 Special items, after tax(1) 3.1 5.3 10.5 13.2 12.6 Tax adjustments(2) (0.3) 0.1 1.8 (0.1) (9.6) Adjusted net income $ 18.8 $ 24.8 $ 35.5 $ 45.4 $ 47.5 Diluted shares 94.3 90.2 98.1 93.1 88.4 Adjusted EPS $ 0.20 $ 0.27 $ 0.36 $ 0.49 $ 0.54 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations. (1) Special items are a non-GAAP financial measure and are used to determine adjusted earnings. Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; 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, remediation costs 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 expense/benefit from one-time income tax items, the set-up or reversal of uncertain tax position reserves and deferred income tax valuations allowance adjustments.

In a year with little to no macroeconomic momentum to help drive growth, it would have been easy to sacrifice our long-term prospects for short-term rewards. One of the personal highlights of my year is engaging with these associates and helping them to become better leaders. These high, wide and deep relationships with our customers put us in position to help in their earliest stages of design and innovation.

Online access will begin at 8:45 a.m. The vision of this group is to help Avient become a top employer for veteran talent and to help provide support and resources to help veterans navigate their career transition and bring value to the Company. Tax services include tax compliance, tax advice and tax planning.

It was a year of many accomplishments that are helping us create a world-class, sustainable organization. The AEPW has thus far committed over $1.0 billion to help end plastic waste in the environment. The AEPW intends to develop and bring to scale solutions expected to minimize and manage plastic waste and promote solutions for used plastics by helping enable a circular economy.

The non-GAAP financial measures include: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate charges in certain calculations. Platform operating income mix percentage 2005* 2006* 2007* 2008* 2009* 2010* 2011 2012 2013 2014 2015 Q1 Global Color, Additives and Inks $ 4.3 $ 8.9 $ 25.7 $ 28.1 $ 25.2 $ 37.7 $ 50.2 $ 75.3 $ 104.0 $ 124.9 $ 33.8 Global Specialty Engineered Materials 0.4 3.9 4.9 17.6 20.6 49.7 45.9 47.0 57.2 72.4 23.1 Designed Structures and Solutions - - - - - - - - 33.4 45.1 3.2 Specialty Platform $ 4.7 $ 12.8 $ 30.6 $ 45.7 $ 45.8 $ 87.4 $ 96.1 $ 122.3 $ 194.6 $ 242.4 $ 60.1 Performance Products and Solutions 75.7 64.2 65.8 31.3 33.1 54.0 27.7 38.8 56.0 63.1 11.5 Distribution 19.5 19.2 22.1 28.1 24.8 42.0 56.0 66.0 63.3 68.2 15.7 Joint ventures 91.9 102.9 34.8 28.6 25.5 18.9 5.0 - - - - Corporate and eliminations (51.5) 34.5 (73.3) (425.1) 7.9 (27.7) 18.2 (89.6) (82.4) (218.6) (17.2) Operating income (loss) GAAP $ 140.3 $ 233.6 $ 80.0 $ (291.4) $ 137.1 $ 174.6 $ 203.0 $ 137.5 $ 231.5 $ 155.1 $ 70.1 Less: Corporate operating expense 51.5 (34.5) 73.3 425.1 (7.9) 27.7 (18.2) 89.6 82.4 218.6 17.2 Operating income excluding Corporate $ 191.8 $ 199.1 $ 153.3 $ 133.7 $ 129.2 $ 202.3 $ 184.8 $ 227.1 $ 313.9 $ 373.7 $ 87.3 Specialty platform operating mix percentage 2% 6% 20% 34% 35% 43% 52% 54% 62% 65% 69% * Historical results have not been restated for the Resin business divestiture or the related resegmentation. 2 Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y Net income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - Special items, after tax(1) (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 30.4 101.0 Tax adjustments(2) (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 2.2 (10.5) Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 Adjusted EPS 2010 Q1 2011 Q1 2012 Q1 2013 Q1 2014 Q1 2015 Q1 Net income attributable to PolyOne common shareholders $ 20.1 $ 106.0 $ 15.3 $ 11.2 $ 29.4 $ 30.2 Joint venture equity earnings, after tax (0.5) (3.7) - - - - Special items, after tax(1) (0.3) (79.8) 6.1 17.2 14.1 5.5 Tax adjustments(2) (3.5) (1.5) 0.1 0.5 (1.6) 5.9 Adjusted net income $ 15.8 $ 21.0 $ 21.5 $ 28.9 $ 41.9 $ 41.6 Diluted shares 95.3 96.4 90.7 92.8 95.7 90.1 Adjusted EPS $ 0.17 $ 0.22 $ 0.24 $ 0.31 $ 0.44 $ 0.46 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal or discontinued operations. (1) Special items are a non-GAAP financial measure. Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; 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, remediation costs 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; unrealized gains and losses from foreign currency option contracts; 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 expense (benefit) from one-time income tax items and deferred income tax valuations allowance adjustments. 3 Net debt to adjusted EBITDA is calculated as follows: Three Months Ended Twelve Months Ended Three Months Ended Trailing Twelve Months (TTM) Ended (In millions) March 31, 2014 December 31, 2014 March 31, 2015 March 31, 2015 Short-term portion and current portion of long-term debt $ 12.8 $ 61.8 $ 61.9 Long-term debt 968.1 962.0 1,049.2 Less: Cash and cash equivalents (238.3) (238.6) (226.4) Net Debt $ 742.6 785.2 884.7 Income before income taxes $ 39.9 $ 88.4 $ 53.3 $ 101.8 Interest expense, net 15.5 62.2 16.1 62.8 Depreciation and amortization 32.8 123.9 25.1 116.2 Special items, impact on operating income 22.9 164.9 9.3 151.3 Accelerated depreciation included in special items (6.8) (23.1) (0.1) (16.4) Adjusted EBITDA $ 104.3 $ 416.3 $ 103.7 $ 415.7 Net Debt/TTM Adjusted EBITDA 2.1 POL IR Presentation - Credit Suisse - June 2015 ��PolyOne Investor Presentation�Credit Suisse �Boston Basic Materials Conference �June 2015�� Forward-Looking Statements Use of Non-GAAP Measures PolyOne Commodity to Specialty Transformation PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Confirmation of Our Strategy Strategy and Execution Drive Results Proof of Performance & 2020 Goals Platinum Vision: Pathway to Accelerated Growth Innovation Drives Earnings Growth Megatrends Aligned with Key End Markets A Rich Pipeline of Opportunity Debt Maturities & Pension Funding Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return PolyOne Core Values Why Invest In PolyOne?

To access Avient’s news library online, please visit www.avient.com/news-events. Three Months Ended September 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 38.2 $ 0.41 $ 5.1 $ 0.06 Special items, after-tax (Attachment 3) 6.6 0.07 32.0 0.35 Amortization expense, after-tax 15.0 0.16 15.2 0.16 Adjusted net income / EPS $ 59.8 $ 0.65 $ 52.3 $ 0.57 (1) Per share amounts may not recalculate from figures presented herein due to rounding Nine Months Ended September 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 121.2 $ 1.32 $ 48.0 $ 0.52 Special items, after-tax (Attachment 3) 33.9 0.37 73.9 0.81 Amortization expense, after-tax 44.7 0.49 46.5 0.51 Adjusted net income / EPS $ 199.8 $ 2.17 $ 168.4 $ 1.84 (1) Per share amounts may not recalculate from figures presented herein due to rounding 7 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, 2024 2023 2024 2023 Sales $ 815.2 $ 753.7 $ 2,493.9 $ 2,423.8 Cost of sales 553.8 558.4 1,696.7 1,740.2 Gross margin 261.4 195.3 797.2 683.6 Selling and administrative expense 184.2 161.0 553.5 529.9 Operating income 77.2 34.3 243.7 153.7 Interest expense, net (26.9) (30.3) (80.1) (88.5) Other (expense) income, net (0.3) 1.0 (2.1) 1.5 Income from continuing operations before income taxes 50.0 5.0 161.5 66.7 Income tax (expense) benefit (11.3) 0.1 (39.3) (18.0) Net income from continuing operations 38.7 5.1 122.2 48.7 Loss from discontinued operations, net of income taxes — — — (0.9) Net income $ 38.7 $ 5.1 $ 122.2 $ 47.8 Net income attributable to noncontrolling interests (0.5) — (1.0) (0.7) Net income attributable to Avient common shareholders $ 38.2 $ 5.1 $ 121.2 $ 47.1 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.42 $ 0.06 $ 1.33 $ 0.53 Discontinued operations — — — (0.01) Total $ 0.42 $ 0.06 $ 1.33 $ 0.52 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.41 $ 0.06 $ 1.32 $ 0.52 Discontinued operations — — — (0.01) Total $ 0.41 $ 0.06 $ 1.32 $ 0.51 Cash dividends declared per share of common stock $ 0.2575 $ 0.2475 $ 0.7725 $ 0.7425 Weighted-average shares used to compute earnings per common share: Basic 91.3 91.1 91.3 91.1 Diluted 92.3 91.9 92.0 91.8 8 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, 2024 2023 2024 2023 Cost of sales: Restructuring costs, including accelerated depreciation $ 1.8 $ (2.1) $ 5.6 $ (9.9) Environmental remediation costs (2.4) (38.1) (28.2) (52.5) Impact on cost of sales (0.6) (40.2) (22.6) (62.4) Selling and administrative expense: Restructuring and employee separation costs (3.1) (2.0) (6.6) (13.8) Legal and other (4.3) 1.7 (10.1) (9.1) Acquisition related costs (0.4) (0.5) (2.5) (4.6) Impact on selling and administrative expense (7.8) (0.8) (19.2) (27.5) Impact on operating income (8.4) (41.0) (41.8) (89.9) Interest expense, net - financing costs (1.3) (2.2) (2.3) (2.2) Other income (loss) — — 0.1 (0.1) Impact on income from continuing operations before income taxes (9.7) (43.2) (44.0) (92.2) Income tax benefit on special items 3.5 10.8 11.9 23.2 Tax adjustments(2) (0.4) 0.4 (1.8) (4.9) Impact of special items on net income from continuing operations $ (6.6) $ (32.0) $ (33.9) $ (73.9) Diluted earnings per common share impact $ (0.07) $ (0.35) $ (0.37) $ (0.81) Weighted average shares used to compute adjusted earnings per share: Diluted 92.3 91.9 92.0 91.8 (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 and certain adjustments to uncertain tax position reserves and valuation allowances. 9 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) September 30, 2024 December 31, 2023 ASSETS Current assets: Cash and cash equivalents $ 505.7 $ 545.8 Accounts receivable, net 465.1 399.9 Inventories, net 377.8 347.0 Other current assets 108.8 114.9 Total current assets 1,457.4 1,407.6 Property, net 973.5 1,028.9 Goodwill 1,716.8 1,719.3 Intangible assets, net 1,542.5 1,590.8 Deferred income taxes 133.1 92.3 Other non-current assets 224.0 129.6 Total assets $ 6,047.3 $ 5,968.5 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 7.8 $ 9.5 Accounts payable 425.9 432.3 Accrued expenses and other current liabilities 460.8 331.8 Total current liabilities 894.5 773.6 Non-current liabilities: Long-term debt 2,059.9 2,070.5 Pension and other post-retirement benefits 63.7 67.2 Deferred income taxes 289.1 281.6 Other non-current liabilities 359.9 437.6 Total non-current liabilities 2,772.6 2,856.9 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,363.0 2,319.2 Noncontrolling interest 17.2 18.8 Total equity 2,380.2 2,338.0 Total liabilities and equity $ 6,047.3 $ 5,968.5 10 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Nine Months Ended September 30, 2024 2023 Operating activities Net income $ 122.2 $ 47.8 Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 133.1 142.6 Accelerated depreciation 1.2 1.9 Share-based compensation expense 12.5 9.7 Changes in assets and liabilities: Increase in accounts receivable (65.7) (5.7) (Increase) decrease in inventories (30.2) 16.5 Decrease in accounts payable (5.7) (59.1) Taxes paid on gain on sale of business — (104.1) Accrued expenses and other assets and liabilities, net (33.2) (2.5) Net cash provided by operating activities 134.2 47.1 Investing activities Capital expenditures (80.8) (75.0) Net proceeds from divestiture — 7.3 Proceeds from plant closures 3.4 — Other investing activities (2.1) 2.3 Net cash used by investing activities (79.5) (65.4) Financing activities Proceeds from long-term borrowings 650.0 — Payments on long-term borrowings (659.1) (103.8) Cash dividends paid (70.5) (67.6) Debt financing costs (9.6) (2.3) Other financing activities (4.6) (2.3) Net cash used by financing activities (93.8) (176.0) Effect of exchange rate changes on cash (1.0) (7.2) Decrease in cash and cash equivalents (40.1) (201.5) Cash and cash equivalents at beginning of year 545.8 641.1 Cash and cash equivalents at end of period $ 505.7 $ 439.6 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 September 30, Nine Months Ended September 30, Reconciliation to Consolidated Statements of Income 2024 2023 2024 2023 Sales $ 815.2 $ 753.7 $ 2,493.9 $ 2,423.8 Gross margin - GAAP 261.4 195.3 797.2 683.6 Special items in gross margin (Attachment 3) 0.6 40.2 22.6 62.4 Adjusted gross margin $ 262.0 $ 235.5 $ 819.8 $ 746.0 Adjusted gross margin as a percent of sales 32.1 % 31.2 % 32.9 % 30.8 % Operating income - GAAP 77.2 34.3 243.7 153.7 Special items in operating income (Attachment 3) 8.4 41.0 41.8 89.9 Adjusted operating income $ 85.6 $ 75.3 $ 285.5 $ 243.6 Adjusted operating income as a percent of sales 10.5 % 10.0 % 11.4 % 10.1 % Three Months Ended September 30, Nine Months Ended September 30, Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 2024 2023 Net income from continuing operations – GAAP $ 38.7 $ 5.1 $ 122.2 $ 48.7 Income tax expense (benefit) 11.3 (0.1) 39.3 18.0 Interest expense, net 26.9 30.3 80.1 88.5 Depreciation & amortization 45.1 46.4 134.3 144.5 EBITDA from continuing operations $ 122.0 $ 81.7 $ 375.9 $ 299.7 Special items, before tax 9.7 43.2 44.0 92.2 Interest expense included in special items (1.3) (2.2) (2.3) (2.2) Depreciation & amortization included in special items (0.4) — (1.2) (1.9) Adjusted EBITDA $ 130.0 $ 122.7 $ 416.4 $ 387.8 Adjusted EBITDA as a percent of sales 15.9 % 16.3 % 16.7 % 16.0 % Year Ended December 31, 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 75.8 $ 0.83 Special items, after-tax 79.3 0.86 Amortization expense, after-tax 61.5 0.67 Adjusted net income / EPS $ 216.6 $ 2.36 (1) Per share amounts may not recalculate from figures presented herein due to rounding

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• Factors that could cause actual results to differ materially from those implied by these forward looking statements include but are not limited to:• 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 achieve the strategic and other objectives relating to the Spartech acquisition, including any expected synergies; our ability to successfully integrate Spartech and achieve the expected results of the acquisition, including, without limitation, the acquisition being accretive;  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;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 amount and timing of repurchases, if any, of PolyOne common shares and our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends;  The effect on foreign operations of currency fluctuations, tariffs, and other political, economic and regulatory risks;  Changes in polymer consumption growth rates in the markets where we conduct business;g p y p g ;  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, employee productivity goals, and an inability to raise or sustain prices for products or services;, , p y p y g , y p p ;  An inability to maintain appropriate relations with unions and employees; 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. • The above list of factors is not exhaustive. • We undertake no obligation to publicly update forward‐looking statements, whether as a result of new information, future events or otherwise. The non‐GAAP financial measures i l d dj t d EPS i b f i t t t d i ti dinclude: adjusted EPS, earnings before interest, tax, depreciation and amortization (EBITDA), adjusted EBITDA, net debt, Specialty platform operating income, Specialty platform gross margin percentage, adjusted operating income, return on invested capital, net debt/ EBITDA, and the exclusion of corporate p p charges in certain calculations. Platform operating income mix percentage 2005Y 2006Y 2007Y 2008Y 2009Y 2010Y 2011Y Global Specialty Engineered Materials $ 0.4 $ 3.9 $ 4.9 $ 17.6 $ 20.6 $ 49.7 $ 45.9 Global Color, Additives and Inks 4.3 8.9 25.7 28.1 25.2 37.7 43.4 Specialty Platform $ 4.7 $ 12.8 $ 30.6 $ 45.7 $ 45.8 $ 87.4 $ 89.3 Performance Products and Solutions 75.7 64.2 65.8 31.3 33.1 54.0 62.4 Distribution 19.5 19.2 22.1 28.1 24.8 42.0 56.0 SunBelt Joint Venture 91.9 102.9 34.8 28.6 25.5 18.9 5.0 Corporate (51.5) 34.5 (73.3) (425.1) 7.9 (27.7) 20.3 Operating income (loss) GAAP $ 140.3 $ 233.6 $ 80.0 $ (291.4) $ 137.1 $ 174.6 $ 233.0 Less: Corporate operating expense (income) 51.5 (34.5) 73.3 425.1 (7.9) 27.7 (20.3) Operating income excluding Corporate $ 191.8 $ 199.1 $ 153.3 $ 133.7 $ 129.2 $ 202.3 $ 212.7 Specialty platform operating mix percentage 2% 6% 20% 34% 35% 43% 42% Platform operating income mix percentage 2012Y Global Specialty Engineered Materials $ 47.0 Global Color, Additives and Inks 66.8 Specialty Platform $ 113.8 Performance Products and Solutions 74.9 Distribution 66.0 Corporate (87.6) Operating income GAAP $ 167.1 Less: Corporate operating expense 87.6 Operating income excluding Corporate $ 254.7 Specialty platform operating mix percentage 45% Platform sales and operating income (OI) 2006Y 2007Y 2008Y 2009Y 2010Y 2011Y Global Specialty Engineered Materials Sales $ 345.3 $ 384.4 $ 514.0 $ 402.9 $ 517.4 $ 575.1 Global Color, Additives and Inks Sales 531.8 560.5 554.3 459.8 527.4 544.6 Specialty Platform Sales $ 877.1 $ 944.9 $ 1,068.3 $ 862.7 $ 1,044.8 $ 1,119.7 Performance Products and Solutions Sales 1,166.2 1,086.8 1,001.4 667.7 776.3 865.4 PolyOne Distribution Sales 732.8 744.3 796.7 625.1 911.9 996.5 Corporate and Eliminations (153.7) (133.3) (127.7) (94.8) (111.1) (118.1) Total Sales $ 2,622.4 $ 2,642.7 $ 2,738.7 $ 2,060.7 $ 2,621.9 $ 2,863.5 Global Specialty Engineered Materials OI $ 3.9 $ 4.9 $ 17.6 $ 20.6 $ 49.7 $ 45.9 Global Color, Additives and Inks OI 8.9 25.7 28.1 25.2 37.7 43.4 Specialty Platform OI $ 12.8 $ 30.6 $ 45.7 $ 45.8 $ 87.4 $ 89.3 Performance Products and Solutions OI 64.2 65.8 31.3 33.1 54.0 62.4 PolyOne Distribution OI 19.2 22.1 28.1 24.8 42.0 56.0 Sunbelt Joint Venture OI 102.9 34.8 28.6 25.5 18.9 5.0 Corporate and eliminations (4.6) (25.5) (28.9) (40.8) (32.5) (26.4) Special items in OI 39.1 (47.8) (396.2) 48.7 4.8 46.7 Operating income (loss) GAAP $ 233.6 $ 80.0 $ (291.4) $ 137.1 $ 174.6 $ 233.0 Sunbelt equity income (107.0) (40.8) (32.5) (29.7) (23.1) (5.7) Special items in OI (39.1) 47.8 396.2 (48.7) (4.8) (46.7) Operating income adjusted $ 87.5 $ 87.0 $ 72.3 $ 58.7 $ 146.7 $ 180.6 Global Specialty Engineered Materials - OI % of sales 1.1% 1.3% 3.4% 5.1% 9.6% 8.0% Global Color, Additives and Inks - OI % of sales 1.7% 4.6% 5.1% 5.5% 7.1% 8.0% Specialty platform OI - % of sales 1.5% 3.2% 4.3% 5.3% 8.4% 8.0% PP&S operating OI - % of sales 5.5% 6.1% 3.1% 5.0% 7.0% 7.2% Distribution OI - % of sales 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% PolyOne OI adjusted - % of sales 3.3% 3.3% 2.6% 2.8% 5.6% 6.3% Platform sales and operating income (OI) 2012Y 2012PF Global Specialty Engineered Materials Sales $ 543.6 $ 779.5 Global Color, Additives and Inks Sales 703.5 753.8 Designed Structures & Solutions 847.4 Specialty Platform Sales $ 1,247.1 $ 2,380.7 Performance Products and Solutions Sales 837.0 902.8 PolyOne Distribution Sales 1,030.3 1,030.3 Corporate and Eliminations (121.8) (121.8) Total Sales $ 2,992.6 $ 4,192.0 Global Specialty Engineered Materials OI $ 47.0 Global Color, Additives and Inks OI 66.8 Specialty Platform OI $ 113.8 Performance Products and Solutions OI 74.9 PolyOne Distribution OI 66.0 Corporate and eliminations (33.7) Special items in OI (53.9) Operating income - GAAP $ 167.1 Special items in OI 53.9 Operating income adjusted $ 221.0 Global Specialty Engineered Materials - OI % of sales 8.6% Global Color, Additives and Inks - OI % of sales 9.5% Specialty platform OI % of sales 9.1% PP&S operating OI % of sales 9.0% Distribution OI % of sales 6.4% PolyOne OI adjusted, % of sales 7.4% Adjusted EPS 2006Y 2007Y 2008Y 2009Y 2010Y 2011Y 2012Y Net Income attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 162.6 $ 172.6 $ 71.9 SunBelt equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - Special items, after tax (21.2) 41.4 310.0 (31.0) 15.8 (30.5) 35.7 Tax adjustments (30.0) (30.7) 147.2 (44.9) (88.3) (42.3) 0.5 Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 75.4 $ 96.1 $ 108.1 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.79 $ 1.02 $ 1.20 Average Debt Q4 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 Average PolyOne Debt $ 707.0 $ 706.4 $ 705.8 $ 705.2 $ 706.9 $ 706.3 Average Equity Q4 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 Average PolyOne shareholders’ equity $ 588.3 $ 611.3 $ 604.3 $ 629.3 $ 629.1 $ 612.5 Adjusted EBITDA 2012 PolyOne Income before income taxes $ 113.0 PolyOne Interest expense, net 50.8 PolyOne Depreciation and amortization 69.8 PolyOne Special items in EBITDA 55.1 PolyOne Adjusted EBITDA $ 288.7 Pro forma Spartech EBITDA * 56.3 Pro forma EBITDA * $ 345.0 * Amount excludes expected synergies.