Handelsregister B des Amtsgerichts Frankfurt am Main Ausdruck Nummer der Firma: Seite 1 von 7 HRB 93737 Nummer der Eintragung a) Firma b) Sitz, Niederlassung, inländische Geschäftsanschrift, empfangsberechtigte Person, Zweigniederlassungen c) Gegenstand des Unternehmens Grund- oder Stammkapital a) Allgemeine Vertretungsregelung b) Vorstand, Leitungsorgan, geschäftsführende Direktoren, persönlich haftende Gesellschafter, Geschäftsführer, Vertretungsberechtigte und besondere Vertretungsbefugnis Prokura a) Rechtsform, Beginn, Satzung oder Gesellschaftsvertrag b) Sonstige Rechtsverhältnisse a) Tag der Eintragung b) Bemerkungen 1 2 3 4 5 6 7 1 a) Clariant Zweite Chemie GmbH b) Frankfurt am Main Geschäftsanschrift: Am Unisyspark 1, 65843 Sulzbach (Taunus) c) Erwerb und die Verwaltung von Beteiligungen an Gesellschaften, insbesondere solchen aus dem Bereich der chemischen Industrie. 25.000,00 EUR a) Ist nur ein Geschäftsführer bestellt, so vertritt er die Gesellschaft allein. Geschäftsführer: de Wall, Udo, Mainz, *12.11.1963 vertretungsberechtigt gemeinsam mit einem anderen Geschäftsführer oder einem Prokuristen; mit der Befugnis, im Namen der Gesellschaft mit sich im eigenen Namen oder als Vertreter eines Dritten Rechtsgeschäfte abzuschließen. a) Gesellschaft mit beschränkter Haftung Gesellschaftsvertrag vom 26.03.2012 a) 14.05.2012 Merz b) Fall 1 2 b) Nicht mehr Geschäftsführer: de Wall, Udo, Mainz, *12.11.1963 Bestellt als Geschäftsführer: Dr. Bestellt als Geschäftsführer: Kronimus, Holger, Hilgert, *26.01.1968 einzelvertretungsberechtigt; mit der Befugnis, im Namen der Gesellschaft mit sich im eigenen Namen oder als Vertreter eines Dritten Rechtsgeschäfte abzuschließen. a) 11.04.2021 Dittberner b) Fall 17 Abruf vom 30.04.2021 17:24 Handelsregister B des Amtsgerichts Frankfurt am Main Ausdruck Nummer der Firma: Seite 7 von 7 HRB 93737 Nummer der Eintragung a) Firma b) Sitz, Niederlassung, inländische Geschäftsanschrift, empfangsberechtigte Person, Zweigniederlassungen c) Gegenstand des Unternehmens Grund- oder Stammkapital a) Allgemeine Vertretungsregelung b) Vorstand, Leitungsorgan, geschäftsführende Direktoren, persönlich haftende Gesellschafter, Geschäftsführer, Vertretungsberechtigte und besondere Vertretungsbefugnis Prokura a) Rechtsform, Beginn, Satzung oder Gesellschaftsvertrag b) Sonstige Rechtsverhältnisse a) Tag der Eintragung b) Bemerkungen 1 2 3 4 5 6 7 Bestellt als Geschäftsführerin: Bergheim, Anke, München, *03.06.1970 einzelvertretungsberechtigt; mit der Befugnis, im Namen der Gesellschaft mit sich im eigenen Namen oder als Vertreter eines Dritten Rechtsgeschäfte abzuschließen. 15 a) Avient Colorants Germany GmbH b) Geändert, nun: Geschäftsanschrift: Hohenrain 1, 56221 Lahnstein a) Die Gesellschafterversammlung vom 07.04.2021 hat eine Änderung des Gesellschaftsvertrages in § 1 (Firma) beschlossen. a) 15.04.2021 Dittberner b) Fall 16 16 b) Berichtigung zur Geschäftsanschrift: Hohenrhein 1, 56112 Lahnstein a) 30.04.2021 Dittberner b) Fall 18 Abruf vom 30.04.2021 17:24 JP028108 Highlight

Microsoft PowerPoint - Avient Q4 Earnings and 2021 Outlook PRINT AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 0 R E S U L T S A N D 2 0 2 1 F I N A N C I A L G U I D A N C E (NYSE: AVNT) F E B R U A R Y 9 , 2 0 2 1 DISCLAIMER 2 Forward-Looking Statements In this presentation, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Purchase price multiple rapidly declining on strength of business and synergy capture (1) (1) (1) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition ($ in millions) 7 SEM CAI Avient • Composites and Outdoor High Performance applications drove positive mix within SEM • Clariant Masterbatch synergy realization under way and expected to drive further margin expansion in 2021 • Portfolio transformation to high growth end markets with focus on sustainable solutions megatrend 10.1% 11.8% 2019PF 2020 (1) (1) EBITDA MARGIN EXPANSION Distribution 6.3% 6.0% 15.2% 17.6% 11.1% 12.1% 2019PF 2020PF 14.5% 19.8% 13.5% 16.1% 6.4% 6.3% 15.2% 16.2% (1) (1) Full YearQ4 (2) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) Total company reflects adjusted EBITDA margins SPOTLIGHT: COMPOSITES 8 • SEM delivers a record year in 2020 – 13% operating income growth and over 200 bps in margin expansion year-over-year • Prior investments in composites platform and outdoor high performance applications paying off, resulting in substantial growth over the last two years SEM Operating Income (OI % of Sales) ($ in millions) $(0.1) $(1.0) $2.2 $19.1 $26.8 2016 2017 2018 2019 2020 Composites Performance (Operating Income) $83.7 $94.4 2019 2020 (11.2%) (13.3%) 0.1 0.1 0.2 0.5 0.6 0.7 0.8 0.9 0.9 1.0 11 12 13 14 15 16 17 18 19 20 $19 $160 $338 2011 2019 2020 0.16 0.20 0.26 0.34 0.42 0.50 0.58 0.72 0.79 0.81 0.85 11 12 13 14 15 16 17 18 19 20 21E FREE CASH FLOW AND CAPITAL ALLOCATION 9 Free Cash Flow Dividends Share Repurchases Deleveraging 3.5x 2.7x 2019PF 2020PF Growing Dividend Cumulative Buybacks Net Leverage $B n $ p e r sh ar e Cash Generation (1) (1) ~$1Bn REPURCHASED OVER LAST 10 YEARS ~$350MM PAID OVER LAST 10 YEARS ~$338MM 2.7x NET LEVERAGE (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition GREAT PLACE TO WORK! Avient acquired the Clariant Masterbatch business (CMB) on July 1, 2020 (the “Acquisition Date”).

Runners 1. Venting 1. Draft Angle 1.

The round located at the base of a rib should be 25% of nominal wall thickness, and all ribs should have a draft angle from 1/4°– 1°. FIGURE 11 - Non-Structural Hole Design Guidelines B = 2W = 2W = 2W FIGURE 12 - Non-structural hole design guidelines FIGURE 13 - Snap Fit Design Guidelines Y 1 y= ε=l2 1.5t1 1 y= ε=l2 K 1.5t12 “K” is found from graph based on t 2 /t 1 . For t 2 /t 1 = 1, K = 1.

Pro Forma Financial Information The Company acquired Avient Protective Materials (“Dyneema”) on September 1, 2022 (the “Acquisition Date”) and sold the Distribution segment on November 1, 2022. To provide comparable results, the company references “pro forma” financial metrics, which include the business results of Avient Protective Materials for periods prior to the Acquisition Date, as if the transaction occurred on January 1, 2021 and reflect Distribution as a discontinued operation. Three Months Ended December 31, 2023 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income (loss) from continuing operations attributable to Avient shareholders $ 27.8 $ 0.30 $ (17.0) $ (0.19) Special items, after tax (Attachment 3) 5.4 0.06 38.3 0.42 Amortization expense, after-tax 15.0 0.16 14.6 0.16 Adjusted net income / EPS $ 48.2 $ 0.52 $ 35.9 $ 0.39 (1) Per share amounts may not recalculate from figures presented herein due to rounding Year Ended December 31, 2023 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS(1) $ EPS(1) Net income from continuing operations attributable to Avient shareholders $ 75.8 $ 0.83 $ 82.8 $ 0.90 Special items, after tax (Attachment 3) 79.3 0.86 116.2 1.26 Amortization expense, after-tax 61.5 0.67 49.0 0.53 Adjusted net income / EPS $ 216.6 $ 2.36 $ 248.0 $ 2.69 (1) Per share amounts may not recalculate from figures presented herein due to rounding 1 Three Months Ended December 31, Year Ended December 31, Reconciliation to EBITDA and Pro Forma Adjusted EBITDA 2023 2022 2023 2022 Sales - GAAP $ 719.0 $ 790.4 $ 3,142.8 $ 3,396.9 Pro forma APM adjustments — — — 256.1 Pro forma adjusted sales $ 719.0 $ 790.4 $ 3,142.8 $ 3,653.0 Net income (loss) from continuing operations – GAAP $ 27.6 $ (16.6) $ 76.3 $ 83.1 Income tax (benefit) expense (7.0) (60.8) 11.0 (19.3) Interest expense 26.8 49.4 115.3 119.8 Depreciation and amortization from continuing operations 44.2 48.6 188.8 162.5 EBITDA from continuing operations $ 91.6 $ 20.6 $ 391.4 $ 346.1 Special items, before tax 22.4 104.3 114.6 194.0 Interest expense included in special items (0.1) (16.0) (2.3) (26.0) Depreciation and amortization included in special items — (1.5) (1.9) (5.5) Adjusted EBITDA $ 113.9 $ 107.4 $ 501.8 $ 508.6 APM pro forma adjustments - 8 months 2022* — — — 83.1 Pro forma adjusted EBITDA $ 113.9 $ 107.4 $ 501.8 $ 591.7 Pro forma adjusted EBITDA as a percent of sales 15.8 % 13.6 % 16.0 % 16.2 % * Pro forma adjustment for January - August 2022 APM results (period before Avient ownership).

4/16/2021 Comprovante de Inscrição e de Situação Cadastral https://servicos.receita.fazenda.gov.br/servicos/cnpjreva/Cnpjreva_Comprovante.asp 1/2 Comprovante de Inscrição e de Situação Cadastral Cidadão, Con�ra os dados de Identi�cação da Pessoa Jurídica e, se houver qualquer divergência, providencie junto à RFB a sua atualização cadastral. TÍTULO DO ESTABELECIMENTO (NOME DE FANTASIA) ******** PORTE DEMAIS CÓDIGO E DESCRIÇÃO DA ATIVIDADE ECONÔMICA PRINCIPAL 20.29-1-00 - Fabricação de produtos químicos orgânicos não especificados anteriormente CÓDIGO E DESCRIÇÃO DAS ATIVIDADES ECONÔMICAS SECUNDÁRIAS 71.20-1-00 - Testes e análises técnicas 46.84-2-99 - Comércio atacadista de outros produtos químicos e petroquímicos não especificados anteriormente 82.11-3-00 - Serviços combinados de escritório e apoio administrativo CÓDIGO E DESCRIÇÃO DA NATUREZA JURÍDICA 206-2 - Sociedade Empresária Limitada LOGRADOURO AV DAS NACOES UNIDAS NÚMERO 18001 COMPLEMENTO ANDAR OITAVO ALA B PARTE CEP 04.795-100 BAIRRO/DISTRITO VILA ALMEIDA MUNICÍPIO SAO PAULO UF SP ENDEREÇO ELETRÔNICO EDUARDO.CARAMELO@CLARIANT.COM TELEFONE (11) 4745-8648/ (11) 5683-7918 ENTE FEDERATIVO RESPONSÁVEL (EFR) ***** SITUAÇÃO CADASTRAL ATIVA DATA DA SITUAÇÃO CADASTRAL 22/09/2015 MOTIVO DE SITUAÇÃO CADASTRAL SITUAÇÃO ESPECIAL ******** DATA DA SITUAÇÃO ESPECIAL ******** Aprovado pela Instrução Normativa RFB nº 1.863, de 27 de dezembro de 2018. Página: 1/1  CONSULTAR QSA  VOLTAR  IMPRIMIR A RFB agradece a sua visita.

CESA BLOCK – STANDARD OFFERINGS POLYMER FAMILY MATERIAL PRODUCT NAME DOSAGE Polyolefin PEA0820045 CESA Block PEA0820045 1–5% Polypropylene PPA0820056 CESA Block PPA0820056 1–5% Polyamide ABA0820022 CESA Block ABA0820022 2–6% Polyester NBA0820024 CESA Block NBA0820024 1–5% Styrenic SLA0820010 CESA Block SLA0820010 1–5% TPU RUA0820028 CESA Block RUA0820028 1–5% CESA Block additives can be used in combination with other CESA masterbatches, and formulations can be customized for most applications.

REFERENCES 1. Capillary viscosity of TPE-1 and -2 at 200°C 1.E+00 1.E+01 1.E+02 1.E+03 1.0E+01 1.0E+02 1.0E+03 1.0E+04 1.0E+05 Shear rate (1/sec) Vi sc os ity (P a* se c) TPE-1A TPE-1B TPE-2A TPE-2B 200C Figure 4. TPE-1A peel adhesion 0 1 2 3 4 Pe el s tr en gt h: N /m m 190C 205C 220C 235C D040W6 Lexan 141 Cycolac NA1000 3 .1 2 .8 2 .8 2 .6 2 .1 2 .4 2 .4 2 .4 1.9 2 .1 2 .1 1.9 7 Figure 5.

All Rights Reserved 2025 Playbook in current environment 1. Executing flawlessly and continue advancing our strategy while prioritizing investments and resources for our growth vectors 1. 2. 3. 4. 5. 6. All Rights Reserved 2025 Color, Additives & Inks END MARKETS REGIONS 34% 21% 15% 11% 9% 8% Packaging Telecom 1%Energy 1% Transportation Industrial Consumer 34% 37% 20% 9% US & Canada Latin America Asia Europe, Middle East and Africa Healthcare Building & Construction 15Copyright © .

Q2 2025 Earnings webcast Avient Corporation AVNT AUGUST 1, 2025 Q2 2025 results 2025 full-year financial guidance Copyright © . All Rights Reserved 2025 Playbook in current environment 1. EBITDA margin 20.9% (1%) As Reported (2%) Excl.