& Canada 50% EMEA 26% Asia 16% Latin America 8% 2020 SEGMENT, END MARKET AND GEOGRAPHY 25 GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 23% Packaging 21%Industrial 15% Wire & Cable 6% Building & Construction 6% Electrical & Electronics 4% END MARKET REVENUE Transportation 10% Healthcare 15% All data reflects 2020 Pro forma for acquisition of the Clariant Masterbatch business. (1) The total company sales and EBITDA of $3,783M and $457M, respectively, include intercompany sales eliminations and corporate costs $2,043M $331M $709M $124M $1,110M $70M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $457M$3,783M (1) Packaging 35% Consumer 23% Healthcare 8% Industrial 14% Building & Construction 8% Transportation 7% Wire & Cable 3% Electrical & Electronics 2% C O L O R , A D D I T I V E S & I N K S 2 0 2 0 P F R E V E N U E | $ 2 . 0 B I L L I O N US & Canada 31% EMEA 40% Asia 22% Latin America 7% END MARKET REGION 26 2020 figures Pro forma for acquisition of the Clariant Masterbatch business S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Consumer 24% Healthcare 10% Packaging 6% Wire & Cable(1) 24% Electrical & Electronics 13% Transportation 11% Industrial 10% Building & Construction 2% 2 0 2 0 R E V E N U E | $ 7 0 9 M I L L I O N END MARKET US & Canada 58% EMEA 23% Asia 19% REGION 27 (1) Approximately 50% of Wire and Cable sales are associated with Fiber Optic Cabling D I S T R I B U T I O N 2 0 2 0 R E V E N U E | $ 1 . 1 B I L L I O N Healthcare 29% Consumer 25% Packaging 2% Industrial 20% Transportation 14% Electrical & Electronics 5% Building & Construction 4% Wire & Cable 1% US & Canada 82% Asia 3% Latin America 15% END MARKET REGION K E Y S U P P L I E R S 28 T O T A L C O M PA N Y R E G I O N A L S A L E S B Y E N D M A R K E T Packaging 32% Consumer 27% Healthcare 12% Industrial 6% Wire & Cable 6% Building & Construction 4% Electrical & Electronics 9% Asia (16% of sales) Transportation 4% Packaging 34% Consumer 16%Healthcare 5% Industrial 17% Wire & Cable 10% Building & Construction 8% Electrical & Electronics 3% EMEA (26% of sales) Transportation 7% 2020 figures Pro forma for acquisition of the Clariant Masterbatch business 29 Transportation 10% Consumer 26% Healthcare 19% Packaging 13% Industrial 16% Wire & Cable 7% Building & Construction 5% Electrical & Electronics 4% US & Canada (50% of sales) Packaging 45% Consumer 29% Healthcare 6% Industrial 8% Building & Construction 3% Electrical & Electronics 2% Wire & Cable 1% LATAM (8% of sales) Transportation 6% Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Three Months Ended March 31, 2021 Reconciliation to Condensed Consolidated Statements of Income GAAP Results Special Items Adjusted Results Income from continuing operations before income taxes $ 102.6 $ 2.4 $ 105.0 Income tax expense - GAAP (22.9) — (22.9) Income tax impact of special items — (0.9) (0.9) Tax adjustments — 1.1 1.1 Net income attributable to noncontrolling interests (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 79.3 $ 2.6 $ 81.9 Net income / EPS $ 0.86 0.03 $ 0.89 Weighted-average diluted shares 92.2 92.2 92.2 Reconciliation to Consolidated Statements of Income Three Months Ended March 31, 2021 Operating income - GAAP $ 120.4 Special items in operating income 2.4 Adjusted Operating income $ 122.8 1 Business Segment Operations Three Months Ended March 31, Year Ended December 31, 2021 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 609.3 $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Specialty Engineered Materials 216.5 185.3 708.8 745.7 645.8 Distribution 362.7 289.5 1,110.3 1,192.2 1,265.4 Corporate and eliminations (26.2) (19.8) (79.9) (79.0) (76.7) Sales $ 1,162.3 $ 711.5 $ 3,242.1 $ 2,862.7 $ 2,881.0 Gross margin: Color, Additives and Inks $ 197.5 $ 89.4 $ 484.4 $ 338.4 $ 353.4 Specialty Engineered Materials 64.7 52.6 207.6 200.2 171.7 Distribution 39.3 33.6 124.0 132.1 125.8 Corporate and eliminations 0.9 (4.1) (31.7) (13.5) (26.1) Gross margin $ 302.4 $ 171.5 $ 784.3 $ 657.2 $ 624.8 Selling and administrative expense: Color, Additives and Inks $ 108.7 $ 48.9 $ 303.6 $ 191.0 $ 194.9 Specialty Engineered Materials 30.5 30.3 113.2 116.5 99.4 Distribution 15.3 14.2 54.5 56.7 54.3 Corporate and eliminations 27.5 25.3 123.7 136.2 97.6 Selling and administrative expense $ 182.0 $ 118.7 $ 595.0 $ 500.4 $ 446.2 Operating income: Color, Additives and Inks $ 88.8 $ 40.5 $ 180.8 $ 147.4 $ 158.5 Specialty Engineered Materials 34.2 22.3 94.4 83.7 72.3 Distribution 24.0 19.4 69.5 75.4 71.5 Corporate and eliminations (26.6) (29.4) (155.4) (149.7) (123.7) Operating income $ 120.4 $ 52.8 $ 189.3 $ 156.8 $ 178.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 116.2 $ 51.4 $ 255.9 $ 190.1 $ 202.8 Specialty Engineered Materials 42.0 29.8 124.4 113.2 95.5 Distribution 24.2 19.5 70.2 75.9 72.2 Corporate and eliminations (24.9) (28.0) (146.2) (144.3) (119.3) Other income, net 1.5 1.6 24.3 12.1 (12.9) EBITDA $ 159.0 $ 74.3 $ 328.6 $ 247.0 $ 238.3 EBITDA as a % of Sales: Color, Additives and Inks 19.1 % 20.0 % 17.0 % 18.9 % 19.4 % Specialty Engineered Materials 19.4 % 16.1 % 17.6 % 15.2 % 14.8 % Distribution 6.7 % 6.7 % 6.3 % 6.4 % 5.7 % 2 Reconciliation of Pro Forma EBITDA - Color, Additives and Inks Three Months Ended March 31, Year Ended December 31, 2021 2020 2020 2019 2018 Sales: Color, Additives and Inks $ 609.3 $ 256.5 $ 1,502.9 $ 1,003.8 $ 1,046.5 Clariant MB pro forma adjustments(1) — 279.4 540.4 1,118.6 1,209.8 Pro forma sales $ 609.3 $ 535.9 $ 2,043.3 $ 2,122.4 $ 2,256.3 Operating income: Color, Additives and Inks $ 88.8 $ 40.5 $ 180.8 $ 147.4 $ 158.5 Clariant MB pro forma adjustments(1) — 23.0 45.0 72.9 80.3 Pro forma operating income $ 88.8 $ 63.5 $ 225.8 $ 220.3 $ 238.8 Depreciation & amortization: Color, Additives and Inks $ 27.4 $ 10.9 $ 75.1 $ 42.7 $ 44.3 Clariant MB pro forma adjustments(1) — 15.1 30.1 60.3 61.2 Pro forma depreciation & amortization $ 27.4 $ 26.0 $ 105.2 $ 103.0 $ 105.5 Earnings Before Interest, Taxes, Depreciation and Amortization (EBITDA): Color, Additives and Inks $ 116.2 $ 51.4 $ 255.9 $ 190.1 $ 202.8 Clariant MB pro forma adjustments(1) — 38.1 75.1 133.2 141.5 Pro forma EBITDA $ 116.2 $ 89.5 $ 331.0 $ 323.3 $ 344.3 Pro forma EBITDA as a % of Sales 19.1 % 16.7 % 16.2 % 15.2 % 15.3 % Three Months Ended March 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient Sales $ 711.5 $ — $ 711.5 $ 279.4 $ 990.9 Operating income 52.8 9.7 62.5 23.0 85.5 Interest expense, net (9.4) — (9.4) (12.8) (22.2) Other income, net 1.6 (0.1) 1.5 — 1.5 Income taxes (11.9) (1.0) (12.9) (2.4) (15.3) Net income from continuing operations attributable to Avient shareholders $ 33.1 $ 8.6 $ 41.7 $ 7.8 $ 49.5 Weighted average diluted shares 86.7 Impact to diluted shares from January 2020 equity offering 6.1 Weighted average diluted shares 92.8 EPS $ 0.53 (1) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 3 Three Months Ended June 30, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(2) Pro Forma Adjusted Avient Sales $ 609.1 $ — $ 609.1 $ 261.1 $ 870.2 Operating income $ 38.0 $ 9.0 $ 47.0 $ 22.0 $ 69.0 Interest expense, net (16.2) — (16.2) (5.3) (21.5) Other income, net 9.5 (0.3) 9.2 — 9.2 Income taxes (7.9) 0.7 (7.2) (3.8) (11.0) Net income attributable to non controlling interests (0.4) — (0.4) — (0.4) Net income from continuing operations attributable to Avient shareholders $ 23.0 $ 9.4 $ 32.4 $ 12.9 $ 45.3 Weighted average diluted shares 91.8 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 107.1 Pro forma adjusted EPS $ 0.42 (2) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition Year Ended December 31, Reconciliation to Adjusted EBITDA 2020 2019 2018 Net income from continuing operations – GAAP $ 133.8 $ 75.7 $ 87.4 Income tax expense 5.2 33.7 14.4 Interest expense 74.6 59.5 62.8 Debt extinguishment cost — — 1.1 Depreciation and amortization from continuing operations 115.0 78.1 72.6 EBITDA $ 328.6 $ 247.0 $ 238.3 Special items, before tax 66.2 61.7 59.5 Interest expense included in special items (10.1) — — Accelerated depreciation included in special items (3.2) — (3.0) Adjusted EBITDA $ 381.6 $ 308.7 $ 294.8 4 Year Ended December 31, 2020 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(3) Pro Forma Adjusted Avient Sales $ 3,242.1 $ — $ 3,242.1 $ 540.4 $ 3,782.5 Operating income $ 189.3 $ 73.7 $ 263.0 $ 45.0 $ 308.0 Interest expense, net (74.6) 10.1 (64.5) (18.1) (82.6) Other income, net 24.3 (17.6) 6.7 — 6.7 Income taxes (5.2) (41.4) (46.6) (6.2) (52.8) Net income attributable to noncontrolling interests (1.8) — (1.8) — (1.8) Net income from continuing operations attributable to Avient shareholders $ 132.0 $ 24.8 $ 156.8 $ 20.7 $ 177.5 Weighted average diluted shares 90.6 Impact to diluted shares from January 2020 equity offering 1.5 Pro forma weighted average diluted shares 92.1 Pro forma adjusted EPS $ 1.93 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations Operating income and other income, net $ 213.6 $ — $ 56.1 $ 269.7 $ 45.0 $ — $ 314.7 Depreciation and amortization 115.0 (3.2) 111.8 30.1 141.9 EBITDA from continuing operations $ 328.6 $ 52.9 $ 381.5 $ 75.1 $ 456.6 Year Ended December 31, 2019 Reconciliation of Pro Forma Adjusted Earnings per Share Avient Special Items Adjusted Avient Clariant MB Pro Forma Adjustments(1) Pro Forma Adjusted Avient Sales $ 2,862.7 $ — $ 2,862.7 $ 1,118.6 $ 3,981.3 Operating income $ 156.8 $ 71.7 $ 228.5 $ 72.9 $ 301.4 Interest expense, net (59.5) — (59.5) (33.4) (92.9) Other income, net 12.1 (10.0) 2.1 — 2.1 Income taxes (33.7) (5.9) (39.6) (9.1) (48.7) Net income attributable to noncontrolling interests (0.2) — (0.2) — (0.2) Net income from continuing operations attributable to Avient shareholders $ 75.5 $ 55.8 $ 131.3 $ 30.4 $ 161.7 Weighted average diluted shares 77.7 Impact to diluted shares from January 2020 equity offering 15.3 Pro forma weighted average diluted shares 93.0 Pro forma adjusted EPS $ 1.74 Reconciliation of Pro Forma Adjusted EBITDA from continuing operations Operating income and other income, net $ 168.9 $ — $ 61.7 $ 230.6 $ 72.9 $ — $ 303.5 Depreciation and amortization 78.1 — 78.1 60.3 138.4 EBITDA from continuing operations $ 247.0 $ 61.7 $ 308.7 $ 133.2 $ 441.9 (3) - Pro forma adjustments for the periods prior to the acquisition date (July 1, 2020) and to give effects of the financing for the acquisition 5 AVNT First Quarter 2021 Earnings Presentation no recs.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf AVNT First Quarter 2021 Earnings Presentation.pdf 4.29 127pm Q1 21 IR Deck Version non-GAAP Recs (002).pdf

Three Months Ended June 30, 2023 Three Months Ended June 30, 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 22.1 $ 0.24 $ 62.8 $ 0.68 Special items, after tax (Attachment 3) 19.6 0.21 3.2 0.03 Amortization expense, after-tax 16.2 0.18 10.5 0.12 Adjusted net income / EPS $ 57.9 $ 0.63 $ 76.5 $ 0.83 Six Months Ended June 30, 2023 Six Months Ended June 30, 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 42.9 $ 0.47 $ 127.2 $ 1.38 Special items, after tax (Attachment 3) 41.9 0.46 9.6 0.10 Amortization expense, after-tax 31.3 0.34 21.3 0.23 Adjusted net income / EPS $ 116.1 $ 1.27 $ 158.1 $ 1.71 8 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Sales $ 824.4 $ 891.0 $ 1,670.1 $ 1,783.2 Cost of sales 583.7 630.1 1,181.8 1,267.9 Gross margin 240.7 260.9 488.3 515.3 Selling and administrative expense 178.4 160.8 368.9 313.0 Operating income 62.3 100.1 119.4 202.3 Interest expense, net (29.4) (16.2) (58.2) (33.1) Other (expense) income, net (0.2) 1.6 0.5 1.0 Income from continuing operations before income taxes 32.7 85.5 61.7 170.2 Income tax expense (10.4) (22.7) (18.1) (42.7) Net income from continuing operations 22.3 62.8 43.6 127.5 Income (loss) from discontinued operations, net of income taxes — 21.9 (0.9) 41.7 Net income 22.3 84.7 42.7 169.2 Net income attributable to noncontrolling interests (0.2) — (0.7) (0.3) Net income attributable to Avient common shareholders $ 22.1 $ 84.7 $ 42.0 $ 168.9 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.24 $ 0.69 $ 0.47 $ 1.39 Discontinued operations — 0.24 (0.01) 0.46 Total $ 0.24 $ 0.93 $ 0.46 $ 1.85 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.24 $ 0.68 $ 0.47 $ 1.38 Discontinued operations — 0.24 (0.01) 0.45 Total $ 0.24 $ 0.92 $ 0.46 $ 1.83 Cash dividends declared per share of common stock $ 0.2475 $ 0.2375 $ 0.4950 $ 0.4750 Weighted-average shares used to compute earnings per common share: Basic 91.1 91.4 91.1 91.4 Diluted 91.9 92.1 91.9 92.2 9 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended June 30, Six Months Ended June 30, 2023 2022 2023 2022 Cost of sales: Restructuring costs, including accelerated depreciation $ (1.2) $ (2.6) $ (7.8) $ (7.0) Environmental remediation costs (13.0) (3.0) (14.4) (5.0) Reimbursement of previously incurred environmental costs — 7.6 — 8.2 Impact on cost of sales (14.2) 2.0 (22.2) (3.8) Selling and administrative expense: Restructuring (0.5) (2.9) (11.9) (1.3) Legal and other (6.4) 1.2 (10.6) 1.5 Acquisition related costs (0.7) (2.1) (4.2) (5.0) Impact on selling and administrative expense (7.6) (3.8) (26.7) (4.8) Impact on operating income (21.8) (1.8) (48.9) (8.6) Other income (loss), net 0.1 0.9 (0.1) 1.0 Impact on income from continuing operations before income taxes (21.7) (0.9) (49.0) (7.6) Income tax expense (benefit) on above special items 5.5 0.2 12.4 2.0 Tax adjustments(2) (3.4) (2.5) (5.3) (4.0) Impact of special items on net income from continuing operations $ (19.6) $ (3.2) $ (41.9) $ (9.6) Diluted earnings per common share impact $ (0.21) $ (0.03) $ (0.46) $ (0.10) Weighted average shares used to compute adjusted earnings per share: Diluted 91.9 92.1 91.9 92.2 (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

Reconciliation of Pro Forma Net Debt December 31, 2022 Short-term and current portion of long term debt $ 2.2 Total long-term debt, net 2,176.7 Unamortized discount and debt issuance cost 37.4 Total debt $ 2,216.3 Cash (641.1) Net taxes due from sale of business 105.0 Adjusted cash $ (536.1) Net debt $ 1,680.2 Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA 2006 2018 Sales $ 2,622.4 $ 3,533.4 Net income from continuing operations – GAAP $ 133.5 $ 160.8 Income tax expense 29.7 36.4 Interest expense 63.1 62.8 Depreciation and amortization 57.1 91.5 EBITDA $ 283.4 $ 351.5 Special items, before income tax (34.0) 59.5 Depreciation and amortization included in special items — (3.0) JV - equity income (107.0) — Adjusted EBITDA $ 142.4 $ 408.0 EBITDA as a % of sales 5.4 % 11.5 % 2 Reconciliation of Adjusted EPS 2006 2018 Net income from continuing operations attributable to Avient common shareholders $ 130.9 $ 161.1 Joint venture equity earnings, after tax (68.5) — Special items, after tax (21.2) 44.6 Special items, tax adjustments (30.0) (10.4) Amortization expense, after tax 1.4 19.5 Adjusted net income from continuing operations attributable to Avient common shareholders $ 12.6 $ 214.8 Diluted shares 92.8 80.4 Adjusted EPS attributable to Avient common shareholders $ 0.14 $ 2.67 Three Months Ended Year Ended Year Ended Reconciliation of Pro Forma Adjusted Earnings per Share December 31, 2022 December 31, 2021 Net (loss) income from continuing operations attributable to Avient shareholders $ (17.0) $ 82.8 $ 151.8 Special items, after tax 38.3 116.2 50.0 Amortization expense, after-tax 14.6 49.0 44.9 Adjusted net income from continuing operations excluding special items 35.9 248.0 246.7 Pro forma adjustments* 2.5 13.6 9.9 APM pro forma amortization expense, after tax* — 19.1 21.2 Pro forma adjusted net income from continuing operations attributable to Avient shareholders $ 38.4 $ 280.7 $ 277.8 Weighted average diluted shares 91.7 92.2 92.1 Pro forma adjusted EPS - excluding special items pro forma for APM acquisition $ 0.42 $ 3.04 $ 3.02 * Pro forma adjustment to reflect APM results for the period before Avient ownership including the impacts of debt financing and paydown of debt with net proceeds from the Distribution sale.

Three Months Ended September 30, 2022 Three Months Ended September 30, 2021 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net (loss) income from continuing operations attributable to Avient shareholders $ (27.4) $ (0.30) $ 33.7 $ 0.37 Special items, after tax (Attachment 3) 68.3 0.75 11.7 0.13 Amortization expense, after-tax 13.4 0.14 $ 11.0 $ 0.11 Adjusted net income / EPS $ 54.3 $ 0.59 $ 56.4 $ 0.61 2009* 2012* 2015 2018 Net income from continuing operations attributable to Avient common shareholders $ 106.7 $ 53.3 $ 144.6 $ 161.1 Joint venture equity earnings, after tax (19.0) — — — Special items, before tax (48.7) 55.1 87.6 59.5 Special items, tax adjustments (27.2) (18.9) (58.7) (25.3) Amortization expense, after tax 1.8 8.3 10.4 19.5 Adjusted net income from continuing operations attributable to Avient common shareholders $ 13.6 $ 97.8 $ 183.9 $ 214.8 Diluted shares 93.4 89.8 88.7 80.4 Adjusted EPS attributable to Avient common shareholders $ 0.15 $ 1.09 $ 2.08 $ 2.67 * Historical results have been updated to reflect subsequent changes to accounting principle and discontinued operations, excluding any changes as a result of discontinued operations from the sale of the Designed Structures and Solutions segment (DSS) and the Performance Products and Solutions segment (PP&S). 1 Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2006 2018 Sales $ 2,622.4 $ 3,533.4 Net income from continuing operations – GAAP $ 133.5 $ 160.8 Income tax expense 29.7 36.4 Interest expense 63.1 62.8 Depreciation and amortization 57.1 91.5 EBITDA $ 283.4 $ 351.5 Special items, before tax (34.0) 59.5 Depreciation and amortization included in special items — (3.0) JV - equity income (107.0) — Adjusted EBITDA $ 142.4 $ 408.0 EBITDA as a % of sales 5.4 % 11.5 % Reconciliation of Color, Additives and Inks EBITDA Q3 2022 Q3 2021 Operating Income 68.6 66.8 Depreciation and amortization 24.2 26.6 EBITDA 92.8 $ 93.4 Reconciliation of Specialty Engineered Materials EBITDA Q3 2022 Q3 2021 SEM(1) Pro forma APM(1) Pro forma SEM SEM Pro forma APM Pro forma SEM Operating Income 31.4 6.3 37.7 30.0 13.9 43.9 Depreciation and amortization 12.9 10.9 23.8 7.9 18.4 26.3 EBITDA $ 44.3 $ 17.2 $ 61.5 $ 37.9 $ 32.3 $ 70.2 Reconciliation of Specialty Engineered Pro Forma Sales Q3 2022 Q3 2021 Sales 258.2 231.7 Pro forma APM(1) 60.7 94.1 Pro forma sales $ 318.9 $ 325.8 Reconciliation of Avient Pro Forma Sales Q3 2022 Q3 2021 Sales 823.3 818.0 Pro forma APM(1) 60.7 94.1 Pro forma sales $ 884.0 $ 912.1 (1) - Q3 2022 SEM results reflect one month of APM’s results while owned by Avient, as the acquisition closed on September 1, 2022.

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