NEUSoft™ UR842A NEUSoft™ UR852A NEUSoft™ UR862A NEUSoft™ UR873A Hardness 42 52 62 73 Specific Gravity 0.96 0.98 1.01 1.04 Compression Set 17 16 16 23 Tensile Strength @ 50% (psi) 130 185 265 455 Tensile Strength @ 100% (psi) 185 257 364 594 Tensile Strength @ 200% (psi) 305 392 532 830 Tensile Strength @ Break 990 1367 1849 2509 Elongation 501 575 626 542 Tear Resistance 120 164 234 319 Melt Index 190C/8.7kg 2 4 9 13 SELECTION GUIDE NEUSoft™ Thermoplastic Polyurethanes With continued advancement in healthcare technology, the importance of quick prototyping and material sampling has never been greater.

Date Registered ID Officers/Authorised Representative(s) Position Held Nationality/CitizenshipName Date of Appointment SOH SOCK LAN S1189628F SINGAPORE CITIZEN 01/06/2020ACRA Director47 JURONG EAST AVENUE 1 #03-01 PARC OASIS SINGAPORE (609780) LIM JOO ANN S8679985E MALAYSIAN 01/06/2020ACRA Director311 JURONG EAST STREET 32 #02-331 JURONG EAST 32 SINGAPORE (600311) IAN NG FOOK YUN S2565916C SINGAPORE CITIZEN 27/05/2019ACRA Secretary151 CAVENAGH ROAD #09-161 CAVENAGH COURT SINGAPORE (229628) ANNA MARDIANA ALISJAHBANA S2205619J SINGAPORE CITIZEN 27/05/2019ACRA Page 2 of 4 ID Officers/Authorised Representative(s) Position Held Nationality/CitizenshipName Date of Appointment Secretary46 EASTWOOD ROAD #04-06 LAGUNA 88 SINGAPORE (486356) Shareholder(s) Name ID Nationality/Citizenship Place of incorporation/ Origin/Registration Address Changed AVIENT SWITZERLAND GMBH T16UF0762F SWITZERLAND ACRA1 ROTHAUSSTRASSE 61 4132 MUTTENZ, SWITZERLAND Ordinary(Number) Currency 3000000 SINGAPORE, DOLLARS Abbreviation UL - Local Entity not registered with ACRA UF - Foreign Entity not registered with ACRA AR - Annual Return AGM - Annual General Meeting FS - Financial Statements OSCARS - One Stop Change of Address Reporting Service by Immigration & Checkpoint Authority.

Móvil Lada: 044 Número: 5578657254 Página [2] de [3] Actividades Económicas: Orden Actividad Económica Porcentaje Fecha Inicio Fecha Fin 1 Servicios de consultoría en administración 100 04/09/2019 Regímenes: Régimen Fecha Inicio Fecha Fin Régimen General de Ley Personas Morales 04/09/2019 Obligaciones: Descripción de la Obligación Descripción Vencimiento Fecha Inicio Fecha Fin Pago definitivo mensual de IVA.

September 20, 2023 (NYSE: AVNT)Avient Sustainability Day AGENDA WELCOME INTRODUCTION SUSTAINABILITY STRATEGY Walter Ripple SUSTAINABLE SOLUTIONS Michael Garratt, Chris Pederson, Woon Keat Moh SUMMARY WRAP UP AND Q+A Avient Corporation 2 Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. EBITDA Margins (1) 5.4% 11.5% 16.0% 2006 2018 2023E • Delivered on organic growth combined with transformative and bolt-on acquisitions • Divested commodity businesses tied to more cyclical end markets • Expanded presence in high growth areas of sustainable solutions, composites, healthcare applications and emerging regions LONG-TERM REVENUE GROWTH DRIVERS Avient Corporation 14 Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other (GDP growth) 0–2% Avient 6% 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap (GDP Growth) HISTORICAL GROWTH DRIVER PERFORMANCE Avient Corporation 15 Composites $51 $84 $212 $668 $108 $113 $231 $293 Asia/Emerging Regions $265 $358 $726 $830 12% $340 $455 $790 $1,175 Sustainable Solutions (Sales $ in millions) Avient Corporation 16 $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020 2021 2022 Revenue From Sustainable Solutions 2016-2022 ($ in millions) 11% Organic CAGR $1,175M Eco-Conscious Recycle Solutions VOC Reduction Sustainable Infrastructure Reduced Energy Use Bio-polymers Solutions to increase recycled content and minimize plastic waste Solutions to reduce weight and energy consumption Solutions to preserve and protect natural resources & human life SUSTAINABILITY: FOCUS TODAY Sustainability Strategy Walter Ripple Vice President, Sustainability Avient Corporation 17 OUR SUSTAINABILITY COMMITMENT As the world’s premier provider of specialized and sustainable materials, services, and solutions, Avient is committed to meeting the needs of the present without compromising future generations’ ability to meet their needs. Per Carlsson, Manufacturing and Operations Avient Corporation 71 80 2022 2030 Medical Plastics Market Size PRESERVE – TAKEAWAY Protecting Human Life and Enabling Connectivity Drives Growth Projections Examples Covered 56% Other Applications 44% 2022 $525M (in $ Bi lli s) 8% CAGR 34% CAGR 5G Infrastructure Market Size 12 92 10 70 80 2023 2024 2025 2026 2027 2028 2029 2030 (in $ Bi lli s) Source: Grand View Research Source: Global Data Summary Senior Vice President and Chief Financial Officer Avient Corporation 72 OUR SUSTAINABILITY REPORT Avient Corporation 73 Avient Corporation 74 2030 SUSTAINABILITY GOALS Avient Corporation 75 PERFORMANCE AND RECOGNITION 1 2 5 ESG Ratings Performance ESG Awards and Certifications top 13% 94th percentile Avient Corporation 76 SUSTAINABILITY INNOVATION AWARDS Ultra-Low Carbon Footprint TPE Innovation Award, Finalist: PCR Colorants + Additives Sustainable Packaging Innovation, Finalist: U.S.

2 Corruption de représentants officiels publics 2 Corruption commerciale 3 Paiements de facilitation et commissions occultes 3 Travailler avec des agents, distributeurs et autres tiers 3 Diligence raisonnable et processus d’approbation 3 Alertes 4 Exigences en matière de comptabilité et de tenue des registres 4 Signalement des violations potentielles 4 Ligne d’assistance Éthique d’Avient 5 Protection contre les représailles 5 Référence rapide : ABAC, À FAIRE ET À NE PAS FAIRE 6 1 Notre Politique mondiale de lutte contre la corruption et les pots-de-vin Avient interdit strictement la fraude, les pots-de-vin et autres pratiques commerciales corrompues dans toutes ses opérations commerciales et partout dans le monde. Cette interdiction s’applique, que l’offre ou le paiement soit effectué directement ou par l’intermédiaire d’une autre personne. 2 Cela comprend tout représentant officiel public ou employé du secteur privé 2 Afin de se conformer aux lois ABAC, nul collaborateur ou tiers agissant pour le compte d’Avient ne doit en aucun cas offrir ou recevoir de quiconque, directement ou indirectement, toute forme de cadeau, divertissement ou toute chose de valeur lorsque le pot-de-vin est destiné à : • obtenir ou conserver un marché ; • influencer des décisions commerciales ; • obtenir un avantage injuste.

Compared to our prior adjusted EPS expectations, raw material deflation as well as improving mix from composites and sustainable solutions positively impacted the quarter and more than offset weaker demand conditions.” 2 “Sequentially, we’ve seen modest improvement in Asia, but demand across other regions remains sluggish, particularly in Europe, as consumers remain cautious with continued inflation and rising interest rates,” Mr. 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 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.

2 Bestickning av offentliga tjänstemän 2 Kommersiella mutor 3 Betalningar av smörjpengar (facilitation payments) och kickbacks 3 Att arbeta med ombud, distributörer och andra tredje parter 3 Due diligence och godkännandeprocessen 3 Varningssignaler 4 Krav avseende redovisning och bokföring 4 Rapportering av eventuella överträdelser 4 Avients jourlinje för etikfrågor 5 Skydd mot repressalier 5 Snabbreferens: BEKÄMPANDE AV MUTOR OCH KORRUPTION – VAD DU BÖR GÖRA OCH INTE GÖRA 6 1 Vår globala policy för bekämpande av mutor och korruption Avient förbjuder strängeligen bedrägeri, bestickning och andra korrupta affärsmetoder i all vår affärsverksamhet överallt i världen. Detta förbud gäller oavsett om erbjudandet eller betalningen görs direkt eller via en annan person. 2 Detta inbegriper alla offentliga tjänstemän och/eller anställda i den privata sektorn. 2 För att efterleva lagar om mutbrotts- och korruptionsbekämpning ska ingen medarbetare eller tredje part som agerar på Avients vägnar någonsin erbjuda någon, eller ta emot från någon person, vare sig direkt eller indirekt, någon som helst form av gåva, representation eller annat av värde ifall denna muta är avsedd att: • erhålla eller upprätthålla affärer • påverka affärsbeslut • vinna en orättvis fördel Lagar om mutbrotts- och korruptionsbekämpning är vittomfattande och kan tolkas mycket brett.

2 Suborno de funcionários públicos 2 Suborno comercial 3 Pagamentos de facilitação e propinas 3 Trabalhar com agentes, distribuidores e outros terceiros 3 Due diligence e processo de aprovação 3 Sinais de alerta 4 Exigências de manutenção de registros contábeis 4 Denúncias de possíveis violações 4 Linha direta de ética da Avient 4 Proteção contra retaliação 5 Referência rápida: ABAC - O QUE FAZER E O QUE NÃO FAZER 6 1 Nossa política global antissuborno e anticorrupção A Avient proíbe estritamente fraudes, subornos e outras práticas empresariais corruptas em todas as operações da empresa em qualquer lugar do mundo. Para cumprir as leis ABAC, nenhum funcionário ou terceiro que atue em nome da Avient deve oferecer a qualquer pessoa, ou receber de ninguém, direta ou indiretamente, qualquer forma de presente, entretenimento ou coisa de valor como suborno para: • obter ou manter negócios 2 Isso inclui qualquer funcionário público e/ou funcionário do setor privado 2 • influenciar decisões comerciais • garantir uma vantagem injusta As leis ABAC são abrangentes e podem ser interpretadas de forma muito ampla.

The underlying growth in these regions helped offset softer demand in Europe and Southeast Asia." 2 2024 Outlook “Looking ahead to the second quarter, we expect adjusted EPS of $0.71, a 13% increase over the prior year," said Jamie Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. Three Months Ended March 31, 2024 2023 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 49.4 $ 0.54 $ 20.8 $ 0.23 Special items, after-tax (Attachment 3) 5.5 0.06 22.3 0.24 Amortization expense, after-tax 14.9 0.16 15.1 0.16 Adjusted net income / EPS $ 69.8 $ 0.76 $ 58.2 $ 0.63 7 Attachment 2 Avient Corporation Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2024 2023 Sales $ 829.0 $ 845.7 Cost of sales 550.8 598.1 Gross margin 278.2 247.6 Selling and administrative expense 184.2 190.5 Operating income 94.0 57.1 Interest expense, net (26.6) (28.8) Other (expense) income, net (0.9) 0.7 Income from continuing operations before income taxes 66.5 29.0 Income tax expense (16.8) (7.7) Net income from continuing operations 49.7 21.3 Loss from discontinued operations, net of income taxes — (0.9) Net income 49.7 20.4 Net income attributable to noncontrolling interests (0.3) (0.5) Net income attributable to Avient common shareholders $ 49.4 $ 19.9 Earnings (loss) per share attributable to Avient common shareholders - Basic: Continuing operations $ 0.54 $ 0.23 Discontinued operations — (0.01) Total $ 0.54 $ 0.22 Earnings (loss) per share attributable to Avient common shareholders - Diluted: Continuing operations $ 0.54 $ 0.23 Discontinued operations — (0.01) Total $ 0.54 $ 0.22 Cash dividends declared per share of common stock $ 0.2575 $ 0.2475 Weighted-average shares used to compute earnings per common share: Basic 91.2 91.0 Diluted 92.0 91.8 8 Attachment 3 Avient Corporation Summary of Special Items (Unaudited) (In millions, except per share data) Special items (1) Three Months Ended March 31, 2024 2023 Cost of sales: Restructuring costs, including accelerated depreciation $ 3.6 $ (6.6) Environmental remediation costs (4.0) (1.4) Impact on cost of sales (0.4) (8.0) Selling and administrative expense: Restructuring and employee separation costs (0.7) (11.3) Legal and other (3.5) (4.4) Acquisition related costs (1.6) (3.4) Impact on selling and administrative expense (5.8) (19.1) Impact on operating income (6.2) (27.1) Other income (loss), net — (0.2) Impact on income from continuing operations before income taxes (6.2) (27.3) Income tax benefit on above special items 1.4 6.9 Tax adjustments(2) (0.7) (1.9) Impact of special items on net income from continuing operations $ (5.5) $ (22.3) Diluted earnings per common share impact $ (0.06) $ (0.24) Weighted average shares used to compute adjusted earnings per share: Diluted 92.0 91.8 (1) Special items include charges related to specific strategic initiatives or financial restructuring such as: consolidation of operations; debt extinguishment costs; costs incurred directly in relation to acquisitions or divestitures; employee separation costs resulting from personnel reduction programs, plant realignment costs, executive separation agreements; asset impairments; settlement gains or losses and mark-to- market adjustments associated with gains and losses on pension and other post-retirement benefit plans; environmental remediation costs, fines, penalties and related insurance recoveries related to facilities no longer owned or closed in prior years; gains and losses on the divestiture of operating businesses, gains and losses on facility or property sales or disposals; results of litigation, fines or penalties, where such litigation (or action relating to the fines or penalties) arose prior to the commencement of the performance period; one-time, non- recurring items; and the effect of changes in accounting principles or other such laws or provisions affecting reported results 2) Tax adjustments include the net tax impact from non-recurring income tax items, adjustments to uncertain tax position reserves and the establishment, reversal or changes to valuation allowances. 9 Attachment 4 Avient Corporation Condensed Consolidated Balance Sheets (In millions) (Unaudited) March 31, 2024 December 31, 2023 ASSETS Current assets: Cash and cash equivalents $ 444.3 $ 545.8 Accounts receivable, net 475.3 399.9 Inventories, net 354.0 347.0 Other current assets 117.1 114.9 Total current assets 1,390.7 1,407.6 Property, net 1,021.7 1,028.9 Goodwill 1,700.1 1,719.3 Intangible assets, net 1,546.5 1,590.8 Other non-current assets 217.1 221.9 Total assets $ 5,876.1 $ 5,968.5 LIABILITIES AND SHAREHOLDERS' EQUITY Current liabilities: Short-term and current portion of long-term debt $ 9.6 $ 9.5 Accounts payable 428.3 432.3 Accrued expenses and other current liabilities 294.2 331.8 Total current liabilities 732.1 773.6 Non-current liabilities: Long-term debt 2,069.4 2,070.5 Pension and other post-retirement benefits 66.3 67.2 Deferred income taxes 280.0 281.6 Other non-current liabilities 390.5 437.6 Total non-current liabilities 2,806.2 2,856.9 SHAREHOLDERS' EQUITY Avient shareholders’ equity 2,321.3 2,319.2 Noncontrolling interest 16.5 18.8 Total equity 2,337.8 2,338.0 Total liabilities and equity $ 5,876.1 $ 5,968.5 10 Attachment 5 Avient Corporation Condensed Consolidated Statements of Cash Flows (Unaudited) (In millions) Three Months Ended March 31, 2024 2023 Operating activities Net income $ 49.7 $ 20.4 Adjustments to reconcile net income to net cash used by operating activities: Depreciation and amortization 43.8 48.7 Accelerated depreciation 0.5 1.8 Share-based compensation expense 3.3 3.2 Changes in assets and liabilities: Increase in accounts receivable (81.9) (40.2) (Increase) decrease in inventories (12.3) 3.8 Increase (decrease) in accounts payable 1.7 (9.9) Accrued expenses and other assets and liabilities, net (47.6) (50.0) Net cash used by operating activities (42.8) (22.2) Investing activities Capital expenditures (24.4) (20.3) Net proceeds from divestiture — 7.3 Proceeds from plant closures 2.0 — Other investing activities (2.1) — Net cash used by investing activities (24.5) (13.0) Financing activities Cash dividends paid (23.5) (22.5) Repayment of long-term debt (2.7) (0.8) Other financing activities (1.9) (2.3) Net cash used by financing activities (28.1) (25.6) Effect of exchange rate changes on cash (6.1) 2.4 Decrease in cash and cash equivalents (101.5) (58.4) Cash and cash equivalents at beginning of year 545.8 641.1 Cash and cash equivalents at end of period $ 444.3 $ 582.7 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.

This performance reflects our team's focus to capitalize on growth opportunities across the many end markets we serve, with particular success this quarter in packaging and consumer, our two largest end markets.” 2 Dr. 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 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.