They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial performance and/or sales In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans Adjusted EPS is calculated as follows: Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y 2015Y Net income (loss) attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) — — — — Special items, after tax(1) (51.2) 10.7 457.2 (75.9) (72.5) (72.8) 36.2 32.6 90.5 28.9 Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 88.7 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 Adjusted EPS Q1 2009* Q2 2009* Q3 2009* Q4 2009* Q1 2010 Q2 2010 Q3 2010 Q4 2010 Net income attributable to PolyOne common shareholders $ 3.3 $ 1.3 $ 51.3 $ 50.8 $ 20.1 $ 44.7 $ 0.1 $ 87.6 Joint venture equity earnings, after tax (8.2) (5.8) (3.0) (2.0) (0.5) (4.5) (6.2) (3.5) Special items, after tax(1) (10.2) 9.2 (36.9) (38.0) (3.8) (22.1) 25.4 (72.0) Adjusted net (loss) income $ (15.1) $ 4.7 $ 11.4 $ 10.8 $ 15.8 $ 18.1 $ 19.3 $ 12.1 Diluted shares 92.2 93.5 93.9 94.4 95.3 96.3 96.3 97.4 Adjusted EPS $ (0.16) $ 0.05 $ 0.12 $ 0.11 $ 0.17 $ 0.19 $ 0.20 $ 0.12 Adjusted EPS Q1 2011 Q2 2011 Q3 2011 Q4 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 Net income attributable to PolyOne common shareholders $ 106.0 $ 23.1 $ 16.0 $ 8.3 $ 15.3 $ 18.4 $ 19.4 $ 0.2 Joint venture equity earnings, after tax (3.7) - - - - - - - Special items, after tax(1) (81.3) 1.3 2.8 4.4 6.2 8.9 5.4 15.7 Adjusted net income $ 21.0 $ 24.4 $ 18.8 $ 12.7 $ 21.5 $ 27.3 $ 24.8 $ 15.9 Diluted shares 96.4 95.5 94.0 91.9 90.7 90.7 90.2 90.5 Adjusted EPS $ 0.22 $ 0.26 $ 0.20 $ 0.14 $ 0.24 $ 0.30 $ 0.28 $ 0.18 2 Adjusted EPS Q1 2013 Q2 2013 Q3 2013 Q4 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 Net income (loss) attributable to PolyOne common shareholders $ 11.2 $ 38.6 $ 23.2 $ 21.0 $ 29.4 $ 30.9 $ 32.3 $ (14.6) Special items, after tax(1) 17.7 (2.0) 12.3 4.6 12.5 17.4 13.1 47.5 Adjusted net income $ 28.9 $ 36.6 $ 35.5 $ 25.6 $ 41.9 $ 48.3 $ 45.4 $ 32.9 Diluted shares 92.8 99.1 98.1 97.2 95.7 94.3 93.1 91.3 Adjusted EPS $ 0.31 $ 0.37 $ 0.36 $ 0.26 $ 0.44 $ 0.51 $ 0.49 $ 0.36 Adjusted EPS Q1 2015 Q2 2015 Q3 2015 Q4 2015 Q1 2016 Q2 2016 Net income attributable to PolyOne common shareholders $ 30.2 $ 66.8 $ 44.5 $ 3.1 $ 39.1 $ 50.0 Special items, after tax(1) 11.4 (15.9) 3.0 30.4 9.1 3.2 Adjusted net income $ 41.6 $ 50.9 $ 47.5 $ 33.5 $ 48.2 $ 53.2 Diluted shares 90.1 89.8 88.4 86.6 85.5 84.7 Adjusted EPS $ 0.46 $ 0.57 $ 0.54 $ 0.39 $ 0.56 $ 0.63 Adjusted operating margin is calculated as follows: Adjusted operating margin Q1 2009* Q2 2009* Q3 2009* Q4 2009* YTD 2009* Q1 2010 Q2 2010 Q3 2010 Q4 2010 YTD 2010 Operating Income $ 9.9 $ 17.1 $ 57.9 $ 52.2 $ 137.1 $ 32.3 $ 58.6 $ 42.0 $ 26.3 $ 159.2 Special items (1) (1.3) 4.6 (27.5) (24.5) (48.7) - (14.5) 5.5 4.2 (4.8) Joint venture equity earnings (12.8) (9.0) (4.8) (3.1) (29.7) (0.8) (7.1) (9.7) (5.5) (23.1) Adjusted operating (loss) income $ (4.2) $ 12.7 $ 25.6 $ 24.6 $ 58.7 $ 31.5 $ 37.0 $ 37.8 $ 25.0 $ 131.3 Sales $ 463.4 $ 496.5 $ 548.3 $ 552.5 $ 2,060.7 $ 604.0 $ 666.2 $ 650.7 $ 585.3 $ 2,506.2 Operating Margin (0.9)% 2.6% 4.7% 4.5% 2.8% 5.2% 5.6% 5.8% 4.3% 5.2% Adjusted operating margin Q1 2011 Q2 2011 Q3 2011 Q4 2011 YTD 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 YTD 2012 Operating income (loss) $ 173.4 $ 42.4 $ 33.4 $ (46.2) $ 203.0 $ 37.4 $ 43.3 $ 43.5 $ 13.3 $ 137.5 Special items (1) (127.2) 2.7 4.9 72.9 (46.7) 8.5 11.8 8.3 25.3 53.9 Joint venture equity earnings (5.7) - - - (5.7) - - - - - Adjusted operating income $ 40.5 $ 45.1 $ 38.3 $ 26.7 $ 150.6 $ 45.9 $ 55.1 $ 51.8 $ 38.6 $ 191.4 Sales $ 682.8 $ 723.4 $ 694.0 $ 609.2 $ 2,709.4 $ 745.5 $ 756.6 $ 707.7 $ 651.0 $ 2,860.8 Operating Margin 5.9% 6.2% 5.5% 4.4% 5.6% 6.2% 7.3% 7.3% 5.9% 6.7% 3 Adjusted operating margin Q1 2013 Q2 2013 Q3 2013 Q4 2013 YTD 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 YTD 2014 Operating income (loss) $ 40.5 $ 80.7 $ 61.6 $ 48.7 $ 231.5 $ 56.4 $ 49.4 $ 63.6 $ (14.3) $ 155.1 Special items (1) 16.6 (5.2) 10.8 7.8 30.0 22.9 39.8 22.0 80.2 164.9 Adjusted operating income $ 57.1 $ 75.5 $ 72.4 $ 56.5 $ 261.5 $ 79.3 $ 89.2 $ 85.6 $ 65.9 $ 320.0 Sales $ 801.1 $ 1,037.6 $ 1,008.9 $ 923.6 $ 3,771.2 $ 1,002.3 $ 1,005.5 $ 958.4 $ 869.3 $ 3,835.5 Operating Margin 7.1% 7.3% 7.2% 6.1% 6.9% 7.9% 8.9% 8.9% 7.6% 8.3% Adjusted operating margin Q1 2015 Q2 2015 Q3 2015 Q4 2015 YTD 2015 Q1 2016 Q2 2016 Operating income $ 70.1 $ 80.3 $ 69.2 $ 31.3 $ 250.9 $ 71.3 $ 81.5 Special items (1) 9.3 11.9 18.7 31.4 71.3 13.8 10.4 Adjusted operating income $ 79.4 $ 92.2 $ 87.9 $ 62.7 $ 322.2 $ 85.1 $ 91.9 Sales $ 873.1 $ 887.1 $ 841.6 $ 775.8 $ 3,377.6 $ 847.0 $ 861.5 Operating Margin 9.1% 10.4% 10.4% 8.1% 9.5% 10.0% 10.7% Adjusted gross margin is calculated as follows: (In millions) Twelve Months Ended December 31, 2015 Gross margin - GAAP $ 681.5 Special items in gross margin(1) 39.7 Gross margin before special items $ 721.2 Specialty platform percentage of operating income is calculated as follows: Platform operating income mix percentage 2006Y* Q2 2016 Color, Additives and Inks $ 8.9 $ 38.2 Specialty Engineered Materials 3.9 21.4 Designed Structures and Solutions — 1.0 Specialty Platform $ 12.8 $ 60.6 Performance Products and Solutions 64.2 21.3 Distribution 19.2 17.8 Joint ventures 102.9 — Corporate and eliminations 34.5 (18.2) Operating income GAAP $ 233.6 $ 81.5 Less: Corporate and eliminations (34.5) 18.2 Operating income excluding Corporate $ 199.1 $ 99.7 Specialty platform percentage of operating income excluding corporate 6% 61% 4 Adjusted EBITDA and net debt to adjusted EBITDA is calculated as follows: (In millions) Six Months Ended June 30, 2015 Twelve Months Ended December 31, 2015 Six Months Ended June 30, 2016 Trailing Twelve Months Ended June 30, 2016 Income from continuing operations, before income taxes $ 116.7 $ 167.7 $ 123.6 $ 174.6 Interest expense, net 32.3 64.1 29.2 61.0 Depreciation and amortization 50.1 104.3 52.4 106.6 Special items, impact on income (loss) from continuing operations before income taxes(1) 21.2 87.6 24.5 90.9 Accelerated depreciation included in special items (0.3) (6.2) (3.2) (9.1) Adjusted EBITDA(2) $ 220.0 $ 417.5 $ 226.5 $ 424.0 Short-term and current portion of long-term debt $ 18.4 Long-term debt 1,126.2 Total Debt 1,144.6 Less: Cash and cash equivalents (161.4) Net Debt $ 983.2 Net Debt / TTM Adjusted EBITDA 2.3 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal, discontinued operations or the related resegmentation

They use words such as "will," "anticipate," "estimate," "expect," "project," "intend," "plan," "believe," and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. 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.

They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial performance and/or sales In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans Adjusted EPS is calculated as follows: Adjusted EPS 2006Y* 2007Y* 2008Y* 2009Y* 2010Y 2011Y 2012Y 2013Y 2014Y 2015Y Net income (loss) attributable to PolyOne common shareholders $ 130.9 $ 40.9 $ (417.0) $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 Joint venture equity earnings, after tax (68.5) (26.1) (20.8) (19.0) (14.7) (3.7) - - - - Special items, after tax(1) (51.2) 10.7 457.2 (75.9) (72.5) (72.8) 36.2 32.6 90.5 28.9 Adjusted net income $ 11.2 $ 25.5 $ 19.4 $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 Diluted shares 92.8 93.1 92.7 93.4 96.0 94.3 89.8 96.5 93.5 88.7 Adjusted EPS $ 0.12 $ 0.27 $ 0.21 $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 Adjusted EPS Q1 2009* Q2 2009* Q3 2009* Q4 2009* Q1 2010 Q2 2010 Q3 2010 Q4 2010 Net income attributable to PolyOne common shareholders $ 3.3 $ 1.3 $ 51.3 $ 50.8 $ 20.1 $ 44.7 $ 0.1 $ 87.6 Joint venture equity earnings, after tax (8.2) (5.8) (3.0) (2.0) (0.5) (4.5) (6.2) (3.5) Special items, after tax(1) (10.2) 9.2 (36.9) (38.0) (3.8) (22.1) 25.4 (72.0) Adjusted net (loss) income $ (15.1) $ 4.7 $ 11.4 $ 10.8 $ 15.8 $ 18.1 $ 19.3 $ 12.1 Diluted shares 92.2 93.5 93.9 94.4 95.3 96.3 96.3 97.4 Adjusted EPS $ (0.16) $ 0.05 $ 0.12 $ 0.11 $ 0.17 $ 0.19 $ 0.20 $ 0.12 Adjusted EPS Q1 2011 Q2 2011 Q3 2011 Q4 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 Net income attributable to PolyOne common shareholders $ 106.0 $ 23.1 $ 16.0 $ 8.3 $ 15.3 $ 18.4 $ 19.4 $ 0.2 Joint venture equity earnings, after tax (3.7) - - - - - - - Special items, after tax(1) (81.3) 1.3 2.8 4.4 6.2 8.9 5.4 15.7 Adjusted net income $ 21.0 $ 24.4 $ 18.8 $ 12.7 $ 21.5 $ 27.3 $ 24.8 $ 15.9 Diluted shares 96.4 95.5 94.0 91.9 90.7 90.7 90.2 90.5 Adjusted EPS $ 0.22 $ 0.26 $ 0.20 $ 0.14 $ 0.24 $ 0.30 $ 0.28 $ 0.18 2 Adjusted EPS Q1 2013 Q2 2013 Q3 2013 Q4 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 Net income (loss) attributable to PolyOne common shareholders $ 11.2 $ 38.6 $ 23.2 $ 21.0 $ 29.4 $ 30.9 $ 32.3 $ (14.6) Special items, after tax(1) 17.7 (2.0) 12.3 4.6 12.5 17.4 13.1 47.5 Adjusted net income $ 28.9 $ 36.6 $ 35.5 $ 25.6 $ 41.9 $ 48.3 $ 45.4 $ 32.9 Diluted shares 92.8 99.1 98.1 97.2 95.7 94.3 93.1 91.3 Adjusted EPS $ 0.31 $ 0.37 $ 0.36 $ 0.26 $ 0.44 $ 0.51 $ 0.49 $ 0.36 Adjusted EPS Q1 2015 Q2 2015 Q3 2015 Q4 2015 Net income attributable to PolyOne common shareholders $ 30.2 $ 66.8 $ 44.5 $ 3.1 Special items, after tax(1) 11.4 (15.9) 3.0 30.4 Adjusted net income $ 41.6 $ 50.9 $ 47.5 $ 33.5 Diluted shares 90.1 89.8 88.4 86.6 Adjusted EPS $ 0.46 $ 0.57 $ 0.54 $ 0.39 Adjusted operating margin is calculated as follows: Adjusted operating margin Q1 2009* Q2 2009* Q3 2009* Q4 2009* YTD 2009* Q1 2010 Q2 2010 Q3 2010 Q4 2010 YTD 2010 Operating Income $ 9.9 $ 17.1 $ 57.9 $ 52.2 $ 137.1 $ 32.3 $ 58.6 $ 42.0 $ 26.3 $ 159.2 Special items (1) (1.3) 4.6 (27.5) (24.5) (48.7) - (14.5) 5.5 4.2 (4.8) Joint venture equity earnings (12.8) (9.0) (4.8) (3.1) (29.7) (0.8) (7.1) (9.7) (5.5) (23.1) Adjusted operating (loss) income $ (4.2) $ 12.7 $ 25.6 $ 24.6 $ 58.7 $ 31.5 $ 37.0 $ 37.8 $ 25.0 $ 131.3 Sales $ 463.4 $ 496.5 $ 548.3 $ 552.5 $ 2,060.7 $ 604.0 $ 666.2 $ 650.7 $ 585.3 $ 2,506.2 Operating Margin (0.9)% 2.6% 4.7% 4.5% 2.8% 5.2% 5.6% 5.8% 4.3% 5.2% Adjusted operating margin Q1 2011 Q2 2011 Q3 2011 Q4 2011 YTD 2011 Q1 2012 Q2 2012 Q3 2012 Q4 2012 YTD 2012 Operating income (loss) $ 173.4 $ 42.4 $ 33.4 $ (46.2) $ 203.0 $ 37.4 $ 43.3 $ 43.5 $ 13.3 $ 137.5 Special items (1) (127.2) 2.7 4.9 72.9 (46.7) 8.5 11.8 8.3 25.3 53.9 Joint venture equity earnings (5.7) - - - (5.7) - - - - - Adjusted operating income $ 40.5 $ 45.1 $ 38.3 $ 26.7 $ 150.6 $ 45.9 $ 55.1 $ 51.8 $ 38.6 $ 191.4 Sales $ 682.8 $ 723.4 $ 694.0 $ 609.2 $ 2,709.4 $ 745.5 $ 756.6 $ 707.7 $ 651.0 $ 2,860.8 Operating Margin 5.9% 6.2% 5.5% 4.4% 5.6% 6.2% 7.3% 7.3% 5.9% 6.7% 3 Adjusted operating margin Q1 2013 Q2 2013 Q3 2013 Q4 2013 YTD 2013 Q1 2014 Q2 2014 Q3 2014 Q4 2014 YTD 2014 Operating income (loss) $ 40.5 $ 80.7 $ 61.6 $ 48.7 $ 231.5 $ 56.4 $ 49.4 $ 63.6 $ (14.3) $ 155.1 Special items (1) 16.6 (5.2) 10.8 7.8 30.0 22.9 39.8 22.0 80.2 164.9 Adjusted operating income $ 57.1 $ 75.5 $ 72.4 $ 56.5 $ 261.5 $ 79.3 $ 89.2 $ 85.6 $ 65.9 $ 320.0 Sales $ 801.1 $ 1,037.6 $ 1,008.9 $ 923.6 $ 3,771.2 $ 1,002.3 $ 1,005.5 $ 958.4 $ 869.3 $ 3,835.5 Operating Margin 7.1% 7.3% 7.2% 6.1% 6.9% 7.9% 8.9% 8.9% 7.6% 8.3% Adjusted operating margin Q1 2015 Q2 2015 Q3 2015 Q4 2015 YTD 2015 Operating income $ 70.1 $ 80.3 $ 69.2 $ 31.3 $ 250.9 Special items (1) 9.3 11.9 18.7 31.4 71.3 Adjusted operating income $ 79.4 $ 92.2 $ 87.9 $ 62.7 $ 322.2 Sales $ 873.1 $ 887.1 $ 841.6 $ 775.8 $ 3,377.6 Operating Margin 9.1% 10.4% 10.4% 8.1% 9.5% Adjusted gross margin is calculated as follows: (In millions) Twelve Months Ended December 31, 2015 Gross margin - GAAP $ 681.5 Special items in gross margin(1) 39.7 Gross margin before special items $ 721.2 Specialty operating income mix percentage is calculated as follows: Platform operating income mix percentage 2005* 2010* 2015 Color, Additives and Inks $ 4.3 $ 37.7 $ 135.4 Specialty Engineered Materials 0.4 49.7 79.6 Designed Structures and Solutions - - 13.8 Specialty Platform $ 4.7 $ 87.4 $ 228.8 Performance Products and Solutions 75.7 54.0 57.4 Distribution 19.5 42.0 68.0 Joint ventures 91.9 18.9 — Corporate and eliminations (51.5) (27.7) (103.3) Operating income GAAP $ 140.3 $ 174.6 $ 250.9 Less: Corporate operating expense 51.5 27.7 103.3 Operating income excluding Corporate $ 191.8 $ 202.3 $ 354.2 Specialty platform operating mix percentage 2% 43% 65% 4 Adjusted EBITDA and net debt to adjusted EBITDA is calculated as follows: (In millions) Twelve Months Ended December 31, 2015 Income from continuing operations, before income taxes $ 167.7 Interest expense, net 64.1 Depreciation and amortization 104.3 Special items, impact on income from continuing operations before income taxes(1) 87.6 Accelerated depreciation included in special items (6.2) Adjusted EBITDA $ 417.5 Short-term and current portion of long-term debt $ 18.6 Long-term debt 1,128.0 Less: Cash and cash equivalents (279.8) Net Debt 866.8 Net Debt/TTM Adjusted EBITDA 2.1 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principal, discontinued operations or the related resegmentation

They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial performance and/or sales In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans Trailing twelve months adjusted gross margin is calculated as follows: Three Months Nine Months Trailing Twelve Months (TTM) Ended (In millions) December 31, 2014 September 30, 2015 September 30, 2015 Gross margin - GAAP $ 152.6 $ 524.6 $ 677.2 Special items in gross margin 15.8 30.0 45.8 Gross margin excluding special items $ 168.4 $ 554.6 $ 723.0 Adjusted EBITDA and net debt to adjusted EBITDA is calculated as follows: Three Months Nine Months Trailing Twelve Months (TTM) Ended (In millions) December 31, 2014 September 30, 2015 September 30, 2015 Income from continuing operations, before income taxes $ (31.2) $ 168.1 $ 136.9 Interest expense, net 15.6 48.5 64.1 Depreciation and amortization 25.0 78.4 103.4 Special items, impact on income from continuing operations before income taxes 80.8 39.8 120.6 Accelerated depreciation included in special items (0.2) (4.6) (4.8) Adjusted EBITDA $ 90.0 $ 330.2 $ 420.2 Short-term portion and current portion of long-term debt $ 61.8 Long-term debt 1,038.0 Less: Cash and cash equivalents (235.7) Net Debt 864.1 Net Debt/TTM Adjusted EBITDA 2.1 Baird Non GAAP Rec Baird - November 10, 2015 POL IR Presentation - November 2015 11.5.2015 - Website ��PolyOne Investor Presentation�RW Baird 2015 Industrial Conference�November 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 Proof of Performance & 2020 Goals Innovation Drives Earnings Growth Innovation Pipeline Potential Innovation Initiatives Design and Service as a Differentiator Customer First Through World-Class Service Debt Maturities & Pension Funding Free Cash Flow and Strong Balance Sheet �Fund Investment / Shareholder Return Why Invest In PolyOne?

They use words such as “will,” “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe,” and other words and terms of similar meaning in connection with any discussion of future operating or financial performance and/or sales In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans Net debt to adjusted EBITDA is calculated as follows: Three Months Twelve Months Three Months Trailing Twelve Months (TTM) (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?

They use words such as "will," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. Develop and implement solutions to end plastic waste while supporting AEPW $1.5B investment in key initiatives. 2030 SUSTAINABILITY TARGETS 20 2021 AVIENT INVESTOR DAY 21 • Investor Day to be held December 9, 2021 in New York, NY • Company will provide updates on its key growth drivers with a deep focus on sustainable solutions Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites / 5G 10% Growth in Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% • Senior leadership team to also present on Clariant MB integration, M&A opportunities and capital allocation priorities PEER COMPARISONS 22 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from. We will deliver for our stakeholders through multiple value creation levers—many of which are unique to Avient: o Demand for sustainable solutions, healthcare, and composites, together with Clariant Masterbatch revenue synergies, that will drive long-term revenue growth in excess of GDP o Clariant Masterbatch cost synergy capture will result in significant near-term benefit In addition, we remain committed to increasing annual dividends in line with earnings growth and opportunistically buying back shares, all while remaining modestly levered.

AVNT-2023.06.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Second Quarter 2023 Results • GAAP EPS of $0.24 includes special items and amortization expense • Adjusted EPS of $0.63 exceeded guidance of $0.60, driven by better-than-projected margins in both segments • Full year adjusted EPS guidance of $2.40 maintained reflecting continued weak demand conditions, offset by adjusted EBITDA margins expected to increase from 15.6% to 16.0% for the year • Most recent Sustainability Report published, highlighting the company’s progress on ESG initiatives focused on People, Products, Planet and Performance • Sustainability Day for investors to be held on September 20th will focus on Avient’s sustainable solutions portfolio and the demand trends that will drive long-term growth CLEVELAND – July 27, 2023 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable solutions, today announced its second quarter 2023 results. They use words such as "will," "anticipate," "estimate," "expect," "project," "intend," "plan," "believe," and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. 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.

They use words such as "will," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial GuidanceCompany Overview 2022 Pro Forma Revenue By: 9,700 Employees 104 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable material solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.4B Revenue $2.40 $530M Adjusted EBITDA 15.6% Adjusted EBITDA Margins $200M Free Cash Flow 2.9x Net Leverage Over $1B in share buybacks since 2011 Raised dividend for 12 consecutive years, a 16% CAGR since 2011 Geography Segment Industry U.S. & Canada 64% 36% Specialty Engineered Materials Color Additives and Inks 37% 9% 4% 4% Building & Energy Telecom 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6.5% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. Continue fostering our Great Place to Work® culture Strategic ObjectivesStrategic Objectives Long Term Growth Rates Growth DriversGrowth Drivers $340 $455 $790 $1,175 $51 $84 $212 $668 $108 $113 $231 $293 $265 $358 $726 $830 8-12% 10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable GrowthProfitable Growth Great Place to WorkGreat Place to Work 5.4% 11.5% 16.2% 2006 2018 2022 EBITDA Margins $0.14 $2.67 $3.04 2006 2018 2022 2022 data is pro forma for acquisition of Avient Protective Materials and Distribution divestiture TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards 90th percentile 84th ESG Ratings Performance 1 Innovation is the lifeblood of a specialty company.

They use words such as "will," "anticipate," "estimate," "expect," "project," "intend," "plan," "believe," and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. 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.

The concentrates offer long-term flame retardancy at low dosage and help fiber manufacturers meet key regulatory requirements by EN, DIN, UNI and others around the world.