Continued R&D investment in current initiatives is expected · Steep increases in advanced economies' carbon prices · Considerable increases in emerging economies' carbon prices · Some change in carbon prices · Declining fuel prices · Regional variability in fuel prices, though slight net increase · Rising fuel prices 1 International Energy Agency World Energy Outlook 2021 The following summarizes Avient's climate-related risks and opportunities analyzed across multiple scenarios, in alignment with the Task Force on Climate-Related Financial Disclosures (TCFD) framework. By 2030, Avient will reduce Scope 1 & 2 GHG emissions by 60% with 2019 as a baseline and achieve operational carbon neutrality by 2050 Clean electrification of our operations and processes will represent some of our current scope 1 emissions reductions, though further evaluation is required

Avient acquired the Clariant Color business on July 1, 2020 (the “Acquisition Date”). Purchase price multiple rapidly declining on strength of business and synergy capture (1) (1) (1) Financial information is pro forma to include a full year of Clariant Color acquisition ($ in millions) 11.9% 16.2% 2019PF 2021 EBITDA Margins (1) S P E C I A LT Y T R A N S F O R M AT I O N 7% 46% 66% 86% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2021 2022 PF % o f A dj us te d E B IT D A (1 ) JVs Distribution Performance Products & Solutions Specialty (1) Adjusted EBITDA is EBITDA excluding corporate costs and special items (2) Pro forma for the acquisition of Dyneema® and potential divestiture of Distribution (2) 38 CULTURE AND PEOPLE 39 O U R S P E C I A LT Y J O U R N E Y C O N T I N U E S 40 • Dyneema® brings leading technology and brand with the World’s Strongest Fiber™, deep history of application development and strong management team focused on specialty applications • Dyneema® transaction is aligned with our previously stated acquisition goal of expanding our composites and fiber capabilities • Similar to our other technology expansion acquisitions, Dyneema® allows us to leverage our invest-to-grow strategy • We plan to explore a possible sale of our Distribution business. Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2022E (%) Being asset light helps us to generate strong free cash flow that is in line with other specialty formulators.

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(*) manufactured without intentionally added PFAS and without PTFE (1) refers to sulfone products only https://www.avient.com/products/polymer-additives/processing-enhancement-additives/colorant-chromatics-evoluscend-non-pfas-high-temperature-mold-release-additive Slide Number 1

Carbon Footprint Infographic Downstream COMMON TERMINOLOGY Carbon Dioxide Equivalent (CO2e): A common way to measure and report greenhouse gas (GHG) emissions such as carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulphur hexafluoride (SF6) Emission Standards: The classification of emissions across the supply chain Scope 1: Direct emissions from sources that are owned or controlled by an organization (e.g., company-owned vehicles, process emissions, and on-site heating) Scope 2: Indirect emissions from purchased indirect sources, such as the production of electricity and steam for an organization’s use Scope 3: Indirect emissions from sources up and down the supply chain, including materials, transportation of goods, and the processing, use, and end-of-life treatment of sold products Cradle-to-Gate: Carbon impact of a product from raw materials and product manufacturing Cradle-to-Grave: Carbon impact and analysis across the entire life cycle of a product from raw materials to disposal © 2023 Avient • www.avient.com • 1.844.4AVIENT Raw Materials Supply Chain UNDERSTANDING CARBON FOOTPRINT CO2e Transportation End-of-Life Treatment Processing of Goods Use of Products Transportation Chemical Processing Cradle-to-Gate (B2B) Cradle-to-Grave (B2C) SCOPE 3 INDIRECT SCOPE 3 INDIRECT Electricity Steam Company Facilities Company-Owned Vehicles SCOPE 1 DIRECT SCOPE 2 INDIRECT Reporting CompanyUpstream

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PRODUCT BULLETIN PROPERTY COMPARISON TRILLIANT HC VS NYLON Density Impact Flexural Modulus (Dry) Tensile Strength (Dry) HDT Equilibrium Moisture — PKE-GF PA12-GF PA612-GF 5 4 3 2 1 0 Impact Shrink Flexural Modulus (Dry) Chemical Resistance Flexural Modulus (Cond.) CO2 Emission Factor — Trilliant HC — PA6-GF — PA66-GF HDT Wear Density 5 4 3 2 1 0 Equilibrium Moisture 1: Poor 3: Good 5: Excellent Density Impact Flexural Modulus (Dry) Tensile Strength (Dry) HDT Equilibrium Moisture — PKE-GF PA12-GF PA612-GF 5 4 3 2 1 0 Impact Shrink Flexural Modulus (Dry) Chemical Resistance Flexural Modulus (Cond.) CO2 Emission Factor — Trilliant HC — PA6-GF — PA66-GF HDT Wear Density 5 4 3 2 1 0 Equilibrium Moisture 1: Poor 3: Good 5: Excellent 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

KEY CHARACTERISTICS ECCOH 5924FORMULATION ECCOH 5981 FORMULATION ECCOH 5983 UV FORMULATION Material Standards BS7655-6, 1 (LTS1–4), BS6724, IEC 60502 BS7655-6, 1 (LTS3) BS7655-6, 1 (LTS1–4) Tear Strength at 23°C 7.7 N/mm 10 N/mm 11 N/mm Tear Strength at 65°C 2.3 N/mm 5 N/mm 6.5 N/mm Hot Pressure Test (6h at 90°C) 39% –

History Originally called HT-1, Nomex® was first developed in the 1960’s and made commercially available in 1967. NOMEX® META-ARAMID DATA META-ARAMID (HM) BARE FIBER PERFORMANCE * Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes MOVING HIGH PERFORMANCE FIBERS FORWARD ABOUT FIBER-LINE® LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V.

Página [1] de [3] CEDULA DE IDENTIFICACION FISCAL PMS190904JZ1 Registro Federal de Contribuyentes AVIENT COLORANT SOLUTIONS MX Nombre, denominación o razón social idCIF: 19090104984 VALIDA TU INFORMACIÓN FISCAL CONSTANCIA DE SITUACIÓN FISCAL Lugar y Fecha de Emisión ECATEPEC DE MORELOS , MEXICO A 18 DE MAYO DE 2021 PMS190904JZ1 Datos de Identificación del Contribuyente: RFC: PMS190904JZ1 Denominación/Razón Social: AVIENT COLORANT SOLUTIONS MX Régimen Capital: SOCIEDAD DE RESPONSABILIDAD LIMITADA DE CAPITAL VARIABLE Nombre Comercial: AVIENT COLORANT SOLUTIONS MX Fecha inicio de operaciones: 04 DE SEPTIEMBRE DE 2019 Estatus en el padrón: ACTIVO Fecha de último cambio de estado: 04 DE SEPTIEMBRE DE 2019 Datos de Ubicación: Código Postal:55540 Tipo de Vialidad: CALLE Nombre de Vialidad: PLASTICOS Número Exterior: 28 Número Interior:B-102 Nombre de la Colonia: SANTA CLARA COATITLA Nombre de la Localidad: Nombre del Municipio o Demarcación Territorial: ECATEPEC DE MORELOS Nombre de la Entidad Federativa: MEXICO Entre Calle: CANAL DE RISCO Y Calle: AVENIDA VIA MORELOS Correo Electrónico: caio.zuccarelli@clariant.com Tel. 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. Si conoces algún posible acto de corrupción o delito presenta una queja o denuncia a través de: www.sat.gob.mx, denuncias@sat.gob.mx, desde México: 01 (55) 8852 2222, desde el extranjero: 1 844 28 73 803, SAT móvil o www.gob.mx/sfp".