Beggs added, “Last month, we also increased our dividend for the thirteenth consecutive year. Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended September 30, Nine Months Ended September 30, 2023 2022 2023 2022 Sales $ 753.7 $ 823.3 $ 2,423.8 $ 2,606.5 Operating Income 34.3 40.6 153.7 242.9 Net income (loss) from continuing operations attributable to Avient shareholders 5.1 (27.4) 48.0 99.8 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.06 $ (0.30) $ 0.53 $ 1.09 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.06 $ (0.30) $ 0.52 $ 1.08 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. Three Months Ended September 30, Nine Months Ended September 30, Reconciliation to Consolidated Statements of Income 2023 2022 2023 2022 Sales $ 753.7 $ 823.3 $ 2,423.8 $ 2,606.5 Gross margin - GAAP 195.3 195.4 683.6 710.7 Special items in gross margin (Attachment 3) 40.2 31.8 62.4 35.6 Adjusted gross margin $ 235.5 $ 227.2 $ 746.0 $ 746.3 Adjusted gross margin as a percent of sales 31.2 % 27.7 % 30.8 % 28.6 % Operating income - GAAP 34.3 40.6 153.7 242.9 Special items in operating income (Attachment 3) 41.0 40.2 89.9 48.8 Adjusted operating income $ 75.3 $ 80.8 $ 243.6 $ 291.7 Adjusted operating income as a percent of sales 10.0 % 9.8 % 10.1 % 11.2 % Three Months Ended September 30, Nine Months Ended September 30, Reconciliation to EBITDA and Adjusted EBITDA: 2023 2022 2023 2022 Net income from continuing operations – GAAP $ 5.1 $ (27.8) $ 48.7 $ 99.7 Income tax (benefit) expense (0.1) (1.2) 18.0 41.5 Interest expense, net 30.3 37.3 88.5 70.4 Depreciation and amortization 46.4 39.8 144.5 113.7 EBITDA from continuing operations $ 81.7 $ 48.1 $ 299.7 $ 325.3 Special items, before tax 43.2 82.0 92.2 89.6 Interest expense included in special items (2.2) (10.0) (2.2) (10.0) Depreciation and amortization included in special items — (0.8) (1.9) (4.0) Adjusted EBITDA $ 122.7 $ 119.3 $ 387.8 $ 400.9 Adjusted EBITDA as a % of sales 16.3 % 14.5 % 16.0 % 15.4 % NEWS RELEASE Attachment 1

Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of 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 Operating Income 62.3 100.1 119.4 202.3 Net income from continuing operations attributable to Avient shareholders 22.1 62.8 42.9 127.2 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.24 $ 0.69 $ 0.47 $ 1.39 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.24 $ 0.68 $ 0.47 $ 1.38 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. 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 Three Months Ended June 30, Six Months Ended June 30, Reconciliation to Consolidated Statements of Income 2023 2022 2023 2022 Sales $ 824.4 $ 891.0 $ 1,670.1 $ 1,783.2 Gross margin - GAAP 240.7 260.9 488.3 515.3 Special items in gross margin (Attachment 3) 14.2 (2.0) 22.2 3.8 Adjusted gross margin $ 254.9 $ 258.9 $ 510.5 $ 519.1 Adjusted gross margin as a percent of sales 30.9 % 29.1 % 30.6 % 29.1 % Operating income - GAAP 62.3 100.1 119.4 202.3 Special items in operating income (Attachment 3) 21.8 1.8 48.9 8.6 Adjusted operating income $ 84.1 $ 101.9 $ 168.3 $ 210.9 Adjusted operating income as a percent of sales 10.2 % 11.4 % 10.1 % 11.8 % Three Months Ended June 30, Six Months Ended June 30, Reconciliation to EBITDA and Adjusted EBITDA: 2023 2022 2023 2022 Net income from continuing operations – GAAP $ 22.3 $ 62.8 $ 43.6 $ 127.5 Income tax expense 10.4 22.7 18.1 42.7 Interest expense, net 29.4 16.2 58.2 33.1 Depreciation and amortization 47.6 36.5 98.1 74.3 EBITDA from continuing operations $ 109.7 $ 138.2 $ 218.0 $ 277.6 Special items, before tax 21.7 0.9 49.0 7.6 Depreciation and amortization included in special items (0.1) (1.1) (1.9) (3.2) Adjusted EBITDA $ 131.3 $ 138.0 $ 265.1 $ 282.0 Adjusted EBITDA as a % of sales 15.9 % 15.5 % 15.9 % 15.8 % NEWS RELEASE Attachment 1

Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Sales $ 849.7 $ 824.4 $ 1,678.7 $ 1,670.1 Operating Income 72.5 62.3 166.5 119.4 Net income from continuing operations attributable to Avient shareholders 33.6 22.1 83.0 42.9 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.36 $ 0.24 $ 0.90 $ 0.47 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results. Three Months Ended June 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 33.6 $ 0.36 $ 22.1 $ 0.24 Special items, after-tax (Attachment 3) 21.8 0.24 19.6 0.21 Amortization expense, after-tax 14.8 0.16 16.2 0.18 Adjusted net income / EPS $ 70.2 $ 0.76 $ 57.9 $ 0.63 Six Months Ended June 30, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 83.0 $ 0.90 $ 42.9 $ 0.47 Special items, after-tax (Attachment 3) 27.3 0.30 41.9 0.46 Amortization expense, after-tax 29.7 0.32 31.3 0.34 Adjusted net income / EPS $ 140.0 $ 1.52 $ 116.1 $ 1.27 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, 2024 2023 2024 2023 Sales $ 849.7 $ 824.4 $ 1,678.7 $ 1,670.1 Cost of sales 592.1 583.7 1,142.9 1,181.8 Gross margin 257.6 240.7 535.8 488.3 Selling and administrative expense 185.1 178.4 369.3 368.9 Operating income 72.5 62.3 166.5 119.4 Interest expense, net (26.6) (29.4) (53.2) (58.2) Other (expense) income, net (0.9) (0.2) (1.8) 0.5 Income from continuing operations before income taxes 45.0 32.7 111.5 61.7 Income tax expense (11.2) (10.4) (28.0) (18.1) Net income from continuing operations 33.8 22.3 83.5 43.6 Loss from discontinued operations, net of income taxes — — — (0.9) Net income $ 33.8 $ 22.3 $ 83.5 $ 42.7 Net income attributable to noncontrolling interests (0.2) (0.2) (0.5) (0.7) Net income attributable to Avient common shareholders $ 33.6 $ 22.1 $ 83.0 $ 42.0 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.37 $ 0.24 $ 0.91 $ 0.47 Discontinued operations — — — (0.01) Total $ 0.37 $ 0.24 $ 0.91 $ 0.46 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.36 $ 0.24 $ 0.90 $ 0.47 Discontinued operations — — — (0.01) Total $ 0.36 $ 0.24 $ 0.90 $ 0.46 Cash dividends declared per share of common stock $ 0.2575 $ 0.2475 $ 0.5150 $ 0.4950 Weighted-average shares used to compute earnings per common share: Basic 91.3 91.1 91.3 91.1 Diluted 92.2 91.9 92.0 91.9 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, 2024 2023 2024 2023 Cost of sales: Restructuring costs, including accelerated depreciation $ 0.2 $ (1.2) $ 3.8 $ (7.8) Environmental remediation costs (21.8) (13.0) (25.8) (14.4) Impact on cost of sales (21.6) (14.2) (22.0) (22.2) Selling and administrative expense: Restructuring and employee separation costs (2.8) (0.5) (3.5) (11.9) Legal and other (2.3) (6.4) (5.8) (10.6) Acquisition related costs (0.5) (0.7) (2.1) (4.2) Impact on selling and administrative expense (5.6) (7.6) (11.4) (26.7) Impact on operating income (27.2) (21.8) (33.4) (48.9) Interest expense, net - financing costs (1.0) — (1.0) — Other income (loss) 0.1 0.1 0.1 (0.1) Impact on income from continuing operations before income taxes (28.1) (21.7) (34.3) (49.0) Income tax benefit on above special items 7.0 5.5 8.4 12.4 Tax adjustments(2) (0.7) (3.4) (1.4) (5.3) Impact of special items on net income from continuing operations $ (21.8) $ (19.6) $ (27.3) $ (41.9) Diluted earnings per common share impact $ (0.24) $ (0.21) $ (0.30) $ (0.46) Weighted average shares used to compute adjusted earnings per share: Diluted 92.2 91.9 92.0 91.9 (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 Three Months Ended June 30, Six Months Ended June 30, Reconciliation to Consolidated Statements of Income 2024 2023 2024 2023 Sales $ 849.7 $ 824.4 $ 1,678.7 $ 1,670.1 Gross margin - GAAP 257.6 240.7 535.8 488.3 Special items in gross margin (Attachment 3) 21.6 14.2 22.0 22.2 Adjusted gross margin $ 279.2 $ 254.9 $ 557.8 $ 510.5 Adjusted gross margin as a percent of sales 32.9 % 30.9 % 33.2 % 30.6 % Operating income - GAAP 72.5 62.3 166.5 119.4 Special items in operating income (Attachment 3) 27.2 21.8 33.4 48.9 Adjusted operating income $ 99.7 $ 84.1 $ 199.9 $ 168.3 Adjusted operating income as a percent of sales 11.7 % 10.2 % 11.9 % 10.1 % Three Months Ended June 30, Six Months Ended June 30, Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 2024 2023 Net income from continuing operations – GAAP $ 33.8 $ 22.3 $ 83.5 $ 43.6 Income tax expense 11.2 10.4 28.0 18.1 Interest expense, net 26.6 29.4 53.2 58.2 Depreciation & amortization 44.9 47.6 89.2 98.1 EBITDA from continuing operations $ 116.5 $ 109.7 $ 253.9 $ 218.0 Special items, before tax 28.1 21.7 34.3 49.0 Interest expense included in special items (1.0) — (1.0) — Depreciation & amortization included in special items (0.3) (0.1) (0.8) (1.9) Adjusted EBITDA $ 143.3 $ 131.3 $ 286.4 $ 265.1 Adjusted EBITDA as a percent of sales 16.9 % 15.9 % 17.1 % 15.9 % Year Ended December 31, 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS 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 14 Three Months Ended September 30, 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS Net income from continuing operations attributable to Avient shareholders $ 5.1 $ 0.06 Special items, after-tax 32.0 0.35 Amortization expense, after-tax 15.2 0.16 Adjusted net income / EPS $ 52.3 $ 0.57

Nutritional components in dairy products are photosensitive, making them susceptible to light degradation • Light protection in dairy packaging helps maintain product integrity and extend shelf life A LIGHT BLOCKING SOLUTION THAT PROVIDES: • Light blocking and whiteness in PET dairy packaging • Protection from 2 weeks up to 12 months shelf life • Compatibility with monolayer and multilayer PET preforms • Full compatibility with rPET • Food contact approved (region dependent) • Low TiO₂ levels to increase recyclability, aligning with the emergence of white recycle streams PASTEURIZED MILK Typical shelf life 5–10 days WHITE COLOR LACTRA ESL LACTRA SX or LACTRA 4 EXTENDED SHELF LIFE MILK 2 weeks–3 months UHT MILK & PRODUCTS 4–12 months Lightweighting/CO2 reduction Reduced LDR – material & cost savings Improved processing performance BENEFITS OF COLORMATRIX™ LACTRA™ Improved bottle Compatibility with rPET Helps to Protect Performance Energy efficiency Whiteness 85–92 L* 30% less life cycle emissions Increased machinery life cycle due to reduced wear & tear 80–100% light blocking © 2024, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012

Ashish Khandpur, prezident a výkonný ředitel POCTIVOST NA INTEGRITA PŘI NAŠEM SPOLEČENSKÁ KODEX CHOVÁNÍ | 1 POCTIVOST NA INTEGRITA PŘI NAŠEM SPOLEČENSKÁ KODEX CHOVÁNÍ | 2 Pokyny pro etické chování Le Code de conduite d’Avient (le « Code ») est un guide de conduite des Kodex chování společnosti Avient („Kodex“) je průvodce firemním chováním. Otázka: Všimla jsem si něčeho, co podle mě porušovalo Kodex. Otázka: Někdo mě právě požádal, abych podržel otevřené dveře, aby mohl vstoupit do některé z našich budov.

Lewiston, ME, United States , 04240

Eladó semmiképpen sem felel Vevő felé bármely véletlenszerű, következményi vagy különös károkért, ideértve, de nem kizárólag az elmaradt hasznot. All late payments shall bear an annual interest of one month (1) EURIBOR plus 8% accrued on a daily basis, notwithstanding any damages. Vevő ezen információkat továbbadja, hogy figyelmeztesse a lehetséges veszélyekre azokat a személyeket, akik a Vevő szerint előreláthatóan ki vannak téve ezen veszélyeknek, beleértve, de nem kizárólag a Vevő alkalmazottait, megbízottait, alvállalkozóit és vevőit.

I feel I should report it but I am nervous about how my manager will respond if I do so—she might make my job more difficult for me. Q: Someone just asked me to hold the door open for them to help them enter one of our buildings. I understand and acknowledge that it is my responsibility to seek guidance and/or clarification on any section of the Code of Conduct that is unclear to me.