normas reconhecidas em matéria ambiental, social, de governação empresarial e de sistemas de gestão. Envolver-se no desenvolvimento e na utilização de sistemas climáticos produtos e processos amigos do ambiente para reduzir o consumo de energia e as emissões de gases com efeito de estufa Cumprir a Lei de Práticas de Corrupção no Estrangeiro dos EUA e a Lei de Suborno do Reino Unido, bem como todas as outras a legislação aplicável em matéria de suborno de funcionários públicos ou de empresas privadas.

Aditivo de bloqueo de luz ColorMatrix™ Lactra™ SX Tecnología de bloqueo de luz visible de alto rendimiento para el aumento de la vida útil de los envases PET para lácteos UHT DESCRIPCIÓN DEL PRODUCTO El aditivo de bloqueo de luz ColorMatrix™ Lactra™ SX es un aditivo masterbatch sólido que, cuando se añade al PET para la fabricación de botellas monocapa, proporciona una tecnología de bloqueo de luz de alto rendimiento y protección del contenido de los productos lácteos líquidos. Para aumentar los aspectos de facilidad de uso de los envases para lácteos UHT, el aditivo de bloqueo de luz ColorMatrix Lactra SX amplía la libertad de diseño, ya que permite a los diseñadores usar una botella PET monocapa para crear el mismo bloqueo de luz visible que los envases de cartón, y HDPE y PET. La simplicidad del proceso de inyección de la monocapa puede también llevar a un menor costo de producción y tiene el potencial de ofrecer botellas de menor peso, ya que las botellas de una sola capa reducen la cantidad de restricciones relacionadas al espesor de la pared de botella.

La falta de pago de los Productos por parte del Comprador no constituirá un evento de fuerza mayor. 13. Se aplicará la ley del Estado de Ohio, sin tener en cuenta los principios de conflicto de leyes. Términos y Condiciones (17 de diciembre de 2024)

BENEFICIOS DE VERSAFLEX PF PARA PELÍCULAS DE PROTECCIÓN SUPERFICIAL: • Adherencia personalizable. • Proceso de fabricación de un solo paso (coextrusión) Reducción de los costes de conversión frente al recubrimiento RESISTENCIA AL DESPRENDIMIENTO EN ACERO INOXIDABLE Grosor de la película: LDPE de 51 micras/Versaflex PF de 25 micras.

El hecho de que el Comprador no dé tal aviso dentro del plazo de tiempo aplicable constituirá una renuncia absoluta e incondicional de todos esos reclamos. La ley aplicable será de la República de Guatemala, excluyendo las normas y los principios aplicables de conflicto de leyes. Términos y condiciones (17 de diciembre de 2024)

Rose Vice President, Corporate 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 December 31, Year Ended December 31, 2024 2023 2024 2023 Sales $ 746.5 $ 719.0 $ 3,240.4 $ 3,142.8 Operating income 85.6 43.1 329.3 196.8 Net income from continuing operations attributable to Avient shareholders 48.3 27.8 169.5 75.8 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.52 $ 0.30 $ 1.84 $ 0.83 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 December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 48.3 $ 0.52 $ 27.8 $ 0.30 Special items, after-tax (Attachment 3) (18.0) (0.20) 5.4 0.06 Amortization expense, after-tax 14.8 0.17 15.0 0.16 Adjusted net income / EPS $ 45.1 $ 0.49 $ 48.2 $ 0.52 (1) Per share amounts may not recalculate from figures presented herein due to rounding Year Ended December 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 169.5 $ 1.84 $ 75.8 $ 0.83 Special items, after-tax (Attachment 3) 15.9 0.17 79.3 0.86 Amortization expense, after-tax 59.5 0.65 61.5 0.67 Adjusted net income / EPS $ 244.9 $ 2.66 $ 216.6 $ 2.36 (1) Per share amounts may not recalculate from figures presented herein due to rounding 8 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended December 31, Year Ended December 31, 2024 2023 2024 2023 Sales $ 746.5 $ 719.0 $ 3,240.4 $ 3,142.8 Cost of sales 487.0 510.1 2,183.7 2,250.3 Gross margin 259.5 208.9 1,056.7 892.5 Selling and administrative expense 173.9 165.8 727.4 695.7 Operating income 85.6 43.1 329.3 196.8 Interest expense, net (25.5) (26.8) (105.6) (115.3) Other income, net 3.2 4.3 1.1 5.8 Income from continuing operations before income taxes 63.3 20.6 224.8 87.3 Income tax (expense) benefit (14.8) 7.0 (54.1) (11.0) Net income from continuing operations 48.5 27.6 170.7 76.3 Income (loss) from discontinued operations, net of income taxes — 0.8 — (0.1) Net income 48.5 28.4 170.7 76.2 Net (income) loss attributable to noncontrolling interests (0.2) 0.2 (1.2) (0.5) Net income attributable to Avient common shareholders $ 48.3 $ 28.6 $ 169.5 $ 75.7 Earnings per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.53 $ 0.30 $ 1.86 $ 0.83 Discontinued operations — 0.01 — — Total $ 0.53 $ 0.31 $ 1.86 $ 0.83 Earnings per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.52 $ 0.30 $ 1.84 $ 0.83 Discontinued operations — 0.01 — — Total $ 0.52 $ 0.31 $ 1.84 $ 0.83 Cash dividends declared per share of common stock $ 0.2700 $ 0.2575 $ 1.0425 $ 1.0000 Weighted-average shares used to compute earnings per common share: Basic 91.4 91.2 91.3 91.1 Diluted 92.2 91.9 92.0 91.8 9 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended December 31, Year Ended December 31, 2024 2023 2024 2023 Cost of sales: Restructuring costs, including accelerated depreciation $ (4.6) $ (2.0) $ 1.0 $ (11.9) Environmental remediation costs (6.8) (17.2) (35.0) (69.7) Reimbursement of previously incurred environmental costs 34.7 1.6 34.7 1.6 Impact on cost of sales 23.3 (17.6) 0.7 (80.0) Selling and administrative expense: Restructuring and employee separation costs (2.6) (1.1) (9.2) (14.9) Legal and other (0.3) (6.1) (10.4) (15.2) Acquisition related costs — (1.3) (2.5) (5.9) Impact on selling and administrative expense (2.9) (8.5) (22.1) (36.0) Impact on operating income 20.4 (26.1) (21.4) (116.0) Interest expense, net - financing costs — (0.1) (2.3) (2.3) Pension and post retirement mark-to-market adjustments and other 3.5 3.8 3.6 3.7 Impact on other income, net 3.5 3.8 3.6 3.7 Impact on income from continuing operations before income taxes 23.9 (22.4) (20.1) (114.6) Income tax (expense) benefit on above special items (5.8) 4.5 6.1 27.7 Tax adjustments(2) (0.1) 12.5 (1.9) 7.6 Impact of special items on net income from continuing operations $ 18.0 $ (5.4) $ (15.9) $ (79.3) Diluted earnings per common share impact $ 0.20 $ (0.06) $ (0.17) $ (0.86) Weighted average shares used to compute adjusted earnings per share: Diluted 92.2 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 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 December 31, Year Ended December 31, Reconciliation to Consolidated Statements of Income: 2024 2023 2024 2023 Sales $ 746.5 $ 719.0 $ 3,240.4 $ 3,142.8 Gross margin - GAAP 259.5 208.9 1,056.7 892.5 Special items in gross margin (Attachment 3) (23.3) 17.6 (0.7) 80.0 Adjusted gross margin $ 236.2 $ 226.5 $ 1,056.0 $ 972.5 Adjusted gross margin as a percent of sales 31.6 % 31.5 % 32.6 % 30.9 % Operating income - GAAP 85.6 43.1 329.3 196.8 Special items in operating income (Attachment 3) (20.4) 26.1 21.4 116.0 Adjusted operating income $ 65.2 $ 69.2 $ 350.7 $ 312.8 Adjusted operating income as a percent of sales 8.7 % 9.6 % 10.8 % 10.0 % Three Months Ended December 31, Year Ended December 31, Reconciliation to EBITDA and Adjusted EBITDA: 2024 2023 2024 2023 Net income from continuing operations – GAAP $ 48.5 $ 27.6 $ 170.7 $ 76.3 Income tax expense (benefit) 14.8 (7.0) 54.1 11.0 Interest expense 25.5 26.8 105.6 115.3 Depreciation and amortization from continuing operations 45.4 44.2 179.7 188.8 EBITDA from continuing operations $ 134.2 $ 91.6 $ 510.1 $ 391.4 Special items, before tax (23.9) 22.4 20.1 114.6 Interest expense included in special items — (0.1) (2.3) (2.3) Depreciation and amortization included in special items (0.3) — (1.5) (1.9) Adjusted EBITDA $ 110.0 $ 113.9 $ 526.4 $ 501.8 Adjusted EBITDA as a percent of sales 14.7 % 15.8 % 16.2 % 16.0 % Three Months Ended March 31, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 49.4 $ 0.54 Special items, after-tax 5.5 0.06 Amortization expense, after-tax 14.9 0.16 Adjusted net income / EPS $ 69.8 $ 0.76 (1) Per share amounts may not recalculate from figures presented herein due to rounding 14 Year Ended December 31, Adjusted Free Cash Flow Calculation 2024 2023 Cash provided by operating activities $ 256.8 $ 201.6 Taxes paid on gain on sale of business — 104.1 One-time payout associated with deferred compensation plans 20.8 — Adjusted cash provided by operating activities $ 277.6 $ 305.7 Capital expenditures (121.9) (119.4) Adjusted free cash flow $ 155.7 $ 186.3

Three Months Ended March 31, 2025 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net (loss) income attributable to Avient common shareholders $ (20.2) $ (0.22) $ 49.4 $ 0.54 Special items, after-tax (Attachment 3) 75.7 0.82 5.5 0.06 Amortization expense, after-tax 14.5 0.16 14.9 0.16 Adjusted net income / EPS $ 70.0 $ 0.76 $ 69.8 $ 0.76 (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 March 31, 2025 2024 Sales $ 826.6 $ 829.0 Cost of sales 563.4 550.8 Gross margin 263.2 278.2 Selling and administrative expense 262.5 184.2 Operating income 0.7 94.0 Interest expense, net (26.9) (26.6) Other expense, net (0.4) (0.9) (Loss) income before income taxes (26.6) 66.5 Income tax benefit (expense) 6.7 (16.8) Net (loss) income $ (19.9) $ 49.7 Net income attributable to noncontrolling interests (0.3) (0.3) Net (loss) income attributable to Avient common shareholders $ (20.2) $ 49.4 (Loss) earnings per share attributable to Avient common shareholders - Basic: $ (0.22) $ 0.54 (Loss) earnings per share attributable to Avient common shareholders - Diluted: $ (0.22) $ 0.54 Cash dividends declared per share of common stock $ 0.2700 $ 0.2575 Weighted-average shares used to compute (loss) earnings per common share: Basic 91.5 91.2 Diluted 91.5 92.0 8 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended March 31, 2025 2024 Cost of sales: Restructuring costs, including accelerated depreciation $ (4.1) $ 3.6 Environmental remediation costs (4.9) (4.0) Reimbursement of previously incurred environmental costs 1.3 — Impact on cost of sales (7.7) (0.4) Selling and administrative expense: Restructuring and employee separation costs (5.1) (0.7) Legal and other (0.4) (3.5) Cloud-based enterprise resource planning system impairment (86.3) — Acquisition related costs — (1.6) Impact on selling and administrative expense (91.8) (5.8) Impact on operating income (99.5) (6.2) Interest expense, net - financing costs (1.7) — Impact on (loss) income before income taxes (101.2) (6.2) Income tax benefit on special items 25.5 1.4 Tax adjustments(2) — (0.7) Impact of special items on net (loss) income $ (75.7) $ (5.5) Diluted (loss) earnings per common share impact $ (0.82) $ (0.06) Weighted average shares used to compute adjusted earnings per share: Diluted 91.8 92.0 (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 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 March 31, 2025 2024 Sales: Color, Additives and Inks $ 519.7 $ 515.3 Specialty Engineered Materials 308.4 314.4 Corporate (1.5) (0.7) Sales $ 826.6 $ 829.0 Gross margin: Color, Additives and Inks $ 173.1 $ 171.2 Specialty Engineered Materials 97.8 107.0 Corporate (7.7) — Gross margin $ 263.2 $ 278.2 Selling and administrative expense: Color, Additives and Inks $ 94.5 $ 96.4 Specialty Engineered Materials 50.7 53.6 Corporate 117.3 34.2 Selling and administrative expense $ 262.5 $ 184.2 Operating income: Color, Additives and Inks $ 78.6 $ 74.8 Specialty Engineered Materials 47.1 53.4 Corporate (125.0) (34.2) Operating income $ 0.7 $ 94.0 Depreciation & amortization: Color, Additives and Inks $ 21.7 $ 21.9 Specialty Engineered Materials 21.5 19.6 Corporate 2.1 2.8 Depreciation & amortization $ 45.3 $ 44.3 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 100.3 $ 96.7 Specialty Engineered Materials 68.6 73.0 Corporate (122.9) (31.4) Other expense, net (0.4) (0.9) EBITDA $ 45.6 $ 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) — Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA $ 144.7 $ 143.1 12 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses operating income before special items to assess performance and allocate resources because senior management believes that this measure is most useful in understanding current profitability levels and how it may serve as a basis for future performance. Three Months Ended March 31, Reconciliation to Consolidated Statements of Income 2025 2024 Sales $ 826.6 $ 829.0 Gross margin - GAAP 263.2 278.2 Special items in gross margin (Attachment 3) 7.7 0.4 Adjusted gross margin $ 270.9 $ 278.6 Adjusted gross margin as a percent of sales 32.8 % 33.6 % Operating income - GAAP 0.7 94.0 Special items in operating income (Attachment 3) 99.5 6.2 Adjusted operating income $ 100.2 $ 100.2 Adjusted operating income as a percent of sales 12.1 % 12.1 % Three Months Ended March 31, Reconciliation to EBITDA and Adjusted EBITDA: 2025 2024 Net (loss) income – GAAP $ (19.9) $ 49.7 Income tax (benefit) expense (6.7) 16.8 Interest expense, net 26.9 26.6 Depreciation & amortization 45.3 44.3 EBITDA $ 45.6 $ 137.4 Special items, before tax 101.2 6.2 Interest expense included in special items (1.7) — Depreciation & amortization included in special items (0.4) (0.5) Adjusted EBITDA $ 144.7 $ 143.1 Adjusted EBITDA as a percent of sales 17.5 % 17.3 % 13 Year Ended December 31, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income attributable to Avient common shareholders $ 169.5 $ 1.84 Special items, after-tax 15.9 0.17 Amortization expense, after-tax 59.5 0.65 Adjusted net income / EPS $ 244.9 $ 2.66 (1) Per share amounts may not recalculate from figures presented herein due to rounding Three Months Ended June 30, 2024 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) Net income attributable to Avient common shareholders $ 33.6 $ 0.36 Special items, after-tax 21.8 0.24 Amortization expense, after-tax 14.8 0.16 Adjusted net income / EPS $ 70.2 $ 0.76 (1) Per share amounts may not recalculate from figures presented herein due to rounding

Greffe du Tribunal de Commerce de Bourg-en-Bresse 32 AV ALSACE LORRAINE CS 50317 01011 BOURG EN BRESSE CEDEX N° de gestion 2018B01303 R.C.S. codeVerif=iWCDBNXrir Greffe du Tribunal de Commerce de Bourg-en-Bresse 32 AV ALSACE LORRAINE CS 50317 01011 BOURG EN BRESSE CEDEX N° de gestion 2018B01303 R.C.S. Bourg-en-Bresse - 22/12/2021 - 10:38:15 page 2/2 RENSEIGNEMENTS RELATIFS A L'ACTIVITE ET AU PREMIER ETABLISSEMENT IMMATRICULE EN FRANCE Adresse de l'établissement La Vavrette Route Nationale 75 Bp 26 01250 Tossiat Nom commercial AVIENT Activité(s) exercée(s) Vente de produits en matière plastique ou à base de matières plastiques. achat, vente, importation et négoce en général de tous produits en matières plastiques ou à base de matières plastiques Date de commencement d'activité 02/08/2018 Origine du fonds ou de l'activité Création Mode d'exploitation Exploitation directe Le Greffier FIN DE L'EXTRAIT

Denominación : Inicio de Operaciones : Domicilio Social : Duración : N.I.F. : Datos Registrales : Objeto Social: Estructura del órgano: Unipersonalidad: Último depósito contable: SITUACIONES ESPECIALES: ASIENTOS DE PRESENTACIÓN VIGENTES: Información Mercantil interactiva de los Registros Mercantiles de España REGISTRO MERCANTIL DE HUESCA Expedida el día: 01/12/2021 a las 20:54 horas. Consejo de administración La sociedad de esta hoja es unipersonal, siendo su socio único AVIENT LUXEMBOURG SARL SOCIEDAD PRIVADA DE RESPONSABILIDAD LIMITADA, con N.I.F. Información General Mercantil REGISTRADORES DE ESPAÑA Diego de León, 21. 28006 Madrid 91 270 16 99

Op grond van deze overeenkomst zijn alle gegevensimporteurs buiten de EU en het VK verplicht om alle persoonlijke gegevens die zij vanuit de EU of het VK ontvangen in overeenstemming met de modelcontractbepalingen voor de verantwoordelijke voor de verwerking (de 'bepalingen') te verwerken en te beschermen, zoals goedgekeurd door de Europese Commissie. De contactgegevens van de gegevensbeschermingsautoriteiten kunt u hier vinden. U kunt de versie van deze verklaring onderaan de pagina vinden. 11.