The main requirements are listed in the following: Transparency similar to silicone Low hardness and low modulus Good tensile and tear Boiling water and dish washer Abrasion and bite resistance FDA direct fatty food contact approval The properties are of silicone rubber and SBC compounds are compared in the following in Table I. TMA strain versus temperature measurement -2000 -1500 -1000 -500 0 D im e n si o n C h a n g e (µ m ) 20 40 60 80 100 120 140 160 180 200 Temperature (°C) ––––––– 224-020A-10N-HDT.003 – – – – 224-001A-HDT Universal V2.6D TA Instruments 3038 / ANTEC 2003 Figure 3. Stress versus strain of PVC, TPV and SBC compounds Stress versus Strain 0.00E+00 1.00E+06 2.00E+06 3.00E+06 4.00E+06 5.00E+06 6.00E+06 7.00E+06 8.00E+06 0 200 400 600 800 Strain, % S tr e s s , P a low modulus high modulus Stress vs Strain 0 500 1000 1500 2000 0 500 1000 strain, % S tr e s s , p s i SBC 59A SBC-74A PVC 60A TPV 67A ANTEC 2003 / 3039 Table I Comparison of properties of silicone rubber and SBC compound Silicone Wacker 420/50S SBC compound Sp.

SOLUTIONS FOR FIBER OPTIC CABLE Engineered Fibers, Color & Additives, Specialty Engineered Materials BINDER YARN Flat, low-profile Highly absorbent (up to 65x its weight) BUFFER TUBE SWELLABLE YARN Cleaner than gel Highly absorbent WATER SWELLABLE FRP Non-corrosive, non-conductive, No flaking or shedding Overcoat and upjacketing available STRENGTH MEMBER Aramid or fiberglass yarn Processes cleanly with minimal dust UNDER-SHEATH RIPCORD Swellable, non-wicking Available in colors for easy identificationLASER MARKING ADDITIVES Provide good contrast in black outer jacket for outdoor exposure JACKET Color formulations for PVC, PE, TPU, TPC UV protective additives Non-halogenated colors for LSFOH LSFOH UV formulations for high flame retardancy, chemical and UV resistance, low COF TPE Polyamide, custom polyolefins LOOSE TUBES, TIGHT BUFFERS AND MICRO-MODULES LSFOH UV formulations for improved processing speeds, strippability & gel resistance Customized formulations: PBT PP TPE Color formulations for polyamide, PBT, LSFOH , TPE, TPC (Thermoplastic Copolyester) Laser marking additives https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/ripcords-fiber-optic-cable https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/water-blocking-absorbing-yarn https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/water-blocking-absorbing-yarn https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/fiber-reinforced-polymer https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/strength-members https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/ripcords-fiber-optic-cable https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-laser-marking-additives https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-wire-cable https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/oncap-uv-stabilizer-additives https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-wire-cable https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/products/thermoplastic-elastomers/onflex-thermoplastic-elastomers https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/eccoh-low-smoke-and-fume-non-halogen-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/bergadur-polyester-formulations https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations https://www.avient.com/products/thermoplastic-elastomers/onflex-thermoplastic-elastomers https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-wire-cable https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-wire-cable https://www.avient.com/products/polymer-additives/performance-enhancement-additives/oncap-laser-marking-additives

A reconciliation of each historical non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.avient.com. All Rights Reserved 2024 35 Non-PFAS functional additives M ARKET DRIVERS & NEEDS • Regulatory restrictions with the removal of PFAS in multiple end markets • Major retailers requiring PFAS content declaration from suppliers • Enhanced plastic properties, aesthetics and processability • Specialized functionalities making plastics a safe option in demanding applications $8B ADDRESSABLE MARKET A V I E N T E N D M A R K E T S , A P P L I C A T I O N S OTHER APPLICATONS • Electrical connectors • Labware • Food contact appliances BUILD NEW PLATFORMS OF SCALE Flexible film Artificial turf Food storage,oil containers 36Copyright © . All Rights Reserved 2024 61 History of balanced capital deployment $0 .1 6 $0 .2 0 $0 .2 6 $0 .3 4 $ 0. 42 $0 .5 0 $ 0. 58 $0 .7 2 $0 .7 9 $0 .8 2 $0 .8 8 $0 .9 6 $1 .0 0 $1 .0 3 $1 .0 8 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 Dividend $ per shareAdj.

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Microsoft PowerPoint - AVNT M8 Investor Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) A U G U S T 2 0 2 4 DISCLAIMER 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. A reconciliation of each historical non-GAAP financial measure with the most directly comparable GAAP financial measure is attached to this presentation which is posted on our website at www.avient.com. EBITDA Margin 16.9% +100 bps Q 2 2 0 2 4 R E S U L T S Q2 2024 PERFORMANCE VS.

Belgium Branch 08/11/2021 Registered seat Address Start Date End Date Route de Bastogne 19 09/08/2018 9638 Pommerloch Luxembourg Additional address info Contact details Type Contact detail Characteristic Start Date End Date Website www.polyone.com Declarative 09/08/2018 General Information Start date entity End date entity 09/08/2018 Legal Situation Status Start Date End Date Normal situation Active 09/08/2018 Legal form Start Date End Date Foreign entity 09/08/2018 Activities Type Start Date End DateVersionNACEBEL VAT activities Wholesale trade of industrial chemical products Main activity 31/08/2018200846751 Activities NSSO Wholesale trade of industrial chemical products Main activity 01/11/2018200846751 (*) Classification of Activities (NACEBEL) has been amended on 1/1/2008. Company Number 0700.822.426 Company Name Avient S.à r.l., Belgium Branch Vesaliusstraat 31 - 1000 Brussels E: ol.brussel@xerius.be T: 02 609 62 30 Inne Tuyteleers Officer Xerius Enterprise Counter 26/11/2021 4Extract from Page 2from Functions Last Name, first Name Registered entity Start Date End DateReason for termination Representative (branch) Roels Jean-Marie 31/08/2018 Last Name, first Name Registered entity Start Date End DateReason for terminationEntrepreneurial skills - Ambulant commerce - Fairground operator 31/08/2018Non SME dispensation (Exemption) Characteristic Phase Duration Start Date End DateReason for termination Employer National Social Security Office Characteristic/authorisation acquired 01/11/2018undetermined Subject to VAT Characteristic/authorisation acquired 31/08/2018undetermined Enterprise subject to registration Characteristic/authorisation acquired 01/11/2018undetermined General assembly End Date Financial Year Start Date Exceptional Year Start Date End DateEnd Date Exceptional Year Financial Details Share capital (Capital Stock) Currency Duration of the entity 12,000.00 EUR June 31/12 09/08/2018 Use Bank account number Start Date End DateBank account number Bank Accounts BIC For all purposes 685 8477013 57 31/08/2018BE09685847701357BOFABE3X External Identifiers NSSO number 143954886 Trade register number 19 0097620 There is no data available for the following sections: Authorisations, Working partners :, Ex-officio striking off, Links between registered entities List of branches Branch - Center of operations General Information Start date entity End date entity 09/08/2018 Address Start Date End Date Address Rue Melville Wilson 2 09/08/2018 5330 Assesse België Company Number 0700.822.426 Company Name Avient S.à r.l., Belgium Branch Inne Tuyteleers Officer Xerius Enterprise Counter 26/11/2021 4Extract from Page 3from Establishment unit number Name Situation on 2.278.618.585 Avient S.à r.l., Belgium Branch 26/11/2021 Name Type Language Name Start Date End Date Trade name French Avient S.à r.l., Belgium Branch 08/11/2021 Address Start Date End Date Address Rue Melville Wilson 2 31/08/2018 5330 Assesse België Additional address info Contact details Type Contact detail Characteristic Start Date End Date Website www.polyone.com Declarative 31/08/2018 General Information 31/08/2018Start date establishment unit End date establishment unit Start date link between entities End date link between entities 31/08/2018 Activities Type Start Date End DateVersionNACEBEL Activities Wholesale trade of industrial chemical products Main activity 31/08/2018200846751 Wholesale trade of industrial chemicals: aniline, printing ink, essential oils, industrial gases, chemical glues, dyes, synthetic resin, methanol, paraffin, etc. Company Number 0700.822.426 Company Name Avient S.à r.l., Belgium Branch Inne Tuyteleers Officer Xerius Enterprise Counter 26/11/2021 2Extract from Page 1from EXTRACT OF THE ESTABLISHMENT UNIT DETAILS Crossroads Bank of Enterprises: 0314.595.348 Establishment unit number Name Situation on 2.278.618.585 Avient S.à r.l., Belgium Branch 26/11/2021 Name Type Language Name Start Date End Date Trade name French Avient S.à r.l., Belgium Branch 08/11/2021 Address Start Date End Date Address Rue Melville Wilson 2 31/08/2018 5330 Assesse Belgium Additional address info Contact details Type Contact detail Characteristic Start Date End Date Website www.polyone.com Declarative 31/08/2018 General Information 31/08/2018Start date establishment unit End date establishment unit Start date link between entities End date link between entities 31/08/2018 Activities Type Start Date End DateVersionNACEBEL (*) Classification of Activities (NACEBEL) has been amended on 1/1/2008.

Codice ATECO 46.73.4 Codice NACE 46.73 Attività import export sì Contratto di rete - Albi ruoli e licenze sì Albi e registri ambientali - L'IMPRESA IN CIFRE Addetti al 30/06/2021 9 Soci e titolari di diritti su azioni e quote 0 Amministratori 0 Titolari di cariche 0 Sindaci, organi di controllo 0 Unità locali 2 Pratiche inviate negli ultimi 12 mesi 3 Trasferimenti di sede 0 Partecipazioni (1) - CERTIFICAZIONE D'IMPRESA Attestazioni SOA - Certificazioni di QUALITA' - DOCUMENTI CONSULTABILI Bilanci 2019 - 2018 Fascicolo sì Statuto - Altri atti 4 (1) Indica se l'impresa detiene partecipazioni in altre società, desunte da elenchi soci o trasferimenti di quote Camera di Commercio Industria Artigianato e Agricoltura di VARESE Registro Imprese - Archivio ufficiale della CCIAA Servizio realizzato da InfoCamere per conto delle Camere di Commercio Italiane Documento n . Codice Fiscale 03669670121 Visura ordinaria societa' di capitale • di 5 10 I trimestre II trimestre Valore medio Dipendenti 9 9 9 Indipendenti 0 0 0 Totale 9 9 9 Distribuzione dipendenti Distribuzione per Contratto (Dati in percentuale rilevati al 30/06/2021) I trimestre II trimestre Tempo Indeterminato Distribuzione per Orario di lavoro (Dati in percentuale rilevati al 30/06/2021) I trimestre II trimestre Tempo Pieno Distribuzione per Qualifica (Dati in percentuale rilevati al 30/06/2021) I trimestre II trimestre Impiegato Quadro Dirigente Addetti nel comune di GALLARATE (VA) Unità locali: 1 I trimestre II trimestre Valore medio Dipendenti 7 7 7 Indipendenti 0 0 0 Totale 7 7 7 Addetti nel comune di 9638 POMMERLOCH Unità locali: 1 I trimestre II trimestre Valore medio Dipendenti 2 2 2 Indipendenti 0 0 0 Totale 2 2 2 Albi e Ruoli Registro Imprese Archivio ufficiale della CCIAA Documento n .