Avient’s Product Carbon Footprint (PCF) Calculator: a tool that is third-party-certified by TÜV Rheinland, developed to evaluate the carbon footprint of Avient’s specialized and sustainable material solutions to help companies address the growing demand to create and meet sustainability commitments, understand the environmental impact of products, and navigate the complex landscape of reducing carbon emissions, particularly for upstream materials, and aligns with the ISO 14067:2018 standard for quantifying and reporting the carbon footprint of a product  

Colorant Chromatics™ Transcend™ Premier Healthcare Colorants: based on polysulfone and PEEK resins with the capability of withstanding up to 1,000 autoclave cycles and high-heat sterilization at 150°C, these colorants are formulated with ingredient materials that have been successfully tested for ISO 10993 biocompatibility and are available in a line of bright and vivid transparent or opaque shades

Copolyester, Polyester & PC/Polyester Blends Copolyester Eastman Tritan™ (Copolyester) High chemical resistance to a wide variety of hospital disinfectants; excellent toughness and impact resistance after disinfection; retains color and gloss after sterilization and disinfection; does not contain BPA, BPS or halogens Polybutylene Terephthalate (PBT) DuPont™ Crastin® & Rynite® (FR-PBT) 30% glass reinforced; flame retardant; good mold flow and electrical properties; high strength, stiffness, dimensional stability and heat resistance Polyester (PC/PET) & Polybutylene Terephthalate (PC/PBT) Covestro Makroblend® (FR-PC/PET) & (FR-PC/PBT) Strength; toughness; chemical resistance; flame retardant Covestro Makroblend® (Non-FR PC/PBT) Strength; toughness; chemical resistance; limited biocompatibility Trinseo EMERGE™ (FR-PC/PET) Chemical resistance; ignition resistance; limited biocompatibility PA, PVC, PC & PMMA Polyamide (Nylon, PA) Avient Trilliant™ XR Radiation Shielding (PA) Radiation shielding; green alternative for lead replacement; enhanced design freedom vs. lead; available in hard and soft durometers Arkema Rilsan® MED (PA11) & Rilsamid® MED (PA12) Chemical resistance; transparent and opaque; easy processing; creep resistance; temperature resistance; BPA-free; sterilizable by gamma, EtO and steam Polyvinyl Chloride GEON Performance Solutions Resilience™ HC (PVC) Excellent chemical resistance; good strength and stiffness; very good surface quality; inherently flame resistant; available in all medical colors; excellent solvent bonding to PVC Polycarbonate (PC) Trinseo EMERGE™ (PC) Ignition resistant; transparent and opaque; glass-filled also available PolyMethyl Methacrylate (PMMA) Trinseo Plexiglas® Acrylics (PMMA) Clarity; easy processing; chemical resistance; BPA free; ideal for light piping and lenses Styrenics & FR-PC/ABS Blends Styrenics Trinseo MAGNUM™ (ABS) Opaque; custom colors; excellent impact and flow; low residuals; full biocompatibility INEOS Styrolution Terlux® HD (MABS) Good clarity; good heat and overall chemical resistance; good impact strength; good solvent bonding to PVC; outstanding surface quality INEOS Styrolution Lustran® & Novodur® HD (ABS) Opaque appearance; outstanding chemical resistance; high impact strength; excellent balance of properties; ease of processability; bondable FR- Polycarbonate/ ABS (FR-PC/ABS) Covestro Bayblend® (FR-PC/ABS) Flame retardant; good impact resistance; dimensional stability; toughness Trinseo EMERGE™ (FR-PC/ABS) Ignition resistant; limited biocompatibility; high flow; easy processing; glass-filled also available RIGID COMPONENTS: DIAGNOSTIC, IMAGING, LIFE SUPPORT, LABORATORY, Applications include: • Housings • Covers • Monitor bezels • Body panels • Handles • Access panels • Battery enclosures • Wands • Coils Rigid Component Solution Needs: • Materials compliant with ISO 10993 & USP Class VI, if required • UL approved resins to meet flammability requirements • Housings with toughness & good impact resistance • Enclosures & components that withstand repeated cleanings • High-flow materials for components with complex designs FLEXIBLE COMPONENTS: DIAGNOSTIC, IMAGING, LIFE SUPPORT, LABORATORY, Applications include: • O-rings • Gaskets • Wheels • Soft touch grips/handles • Keypads/displays • Diaphragms • Seals Flexible Component Solution Needs: • Comfortable handles & grips • Water-tight seals • Durable feet or casters • Durable keypads • Flow control TPE, TPC-ET, TPU, TPV & Flexible PVC Thermoplastic Avient Versaflex™ HC Overmolding Series Proven healthcare solutions with hardness ranges 42–65 Shore A; autoclave, radiation and EtO sterilizable; bondable to many substrates; customizable haptics Arkema Pebax® MED Sterilizable by gamma and EtO; low energy return; soft touch; chemical resistance; overmolding material Thermoplastic Polyester DuPont™ Hytrel® Wide range of flexibility, stiffness, and processing options; Shore D between 30-82; BPA-free; excellent flex fatigue and toughness; low temperature flexibility; good chemical resistance Thermoplastic Polyurethane Covestro Texin® Biocompatible; soft touch; sterilizable; good chemical resistance; overmold for grips and handles; excellent bonding to polar substrates like PC; 70A to 95A Thermoplastic Vulcanizate Avient Versalloy™ Proven healthcare solutions with hardness ranges 45–90 Shore A; autoclave, radiation and EtO sterilizable; natural and colorable; smooth texture; bonds to PP Exxon Mobil Santoprene™ Durable sealing performance; elastic recovery; excellent chemical resistance; compliance with medical standards Flexible Polyvinyl Chloride GEON Performance Solutions Geon™ Flexible PVC Engineered exclusively for the healthcare market; transparent and opaque colors; radiopaque grades available; durometer ranges from 55A to 40D; gamma and EtO sterilizable Thermoset Silicone Elastomers Thermoset Silicone Elastomers/ Liquid Silicone Rubber (LSR) DuPont™ Liveo™ Silicone Elastomers (LSR) Biocompatible; non-irritating and non-sensitization; sterilizable; made without plasticizers, phthalates or latex PVC Polyvinyl Chloride GEON Performance Solutions Geon™ Flexible PVC Inherent flame resistance; halogen-free; excellent chemical resistance; non-yellowing; proven safety record in wire and cable applications; high temperature grades available TPE, TPC-ET, TPU & POE Thermoplastic Polyester Arkema Pebax® Flexibility; chemical resistance; easy processing; abrasion resistance; low coefficient of friction Thermoplastic Polyester Elastomers (TPC-ET) DuPont™ Hytrel® REACH, RoHS and WEEE compliant; wide range of flexibility, stiffness, and processing options; 30D-82D; BPA-free; excellent flex fatigue and toughness; low temperature flexibility; good chemical resistance Thermoplastic Polyurethane Covestro Texin® RoHs, WEEE, and REACH compliant; excellent memory and recoil; abrasion resistance; Texin® Rx Series - medical grade Polyether TPU – 70A to 80D Polyolefin Elastomer (POE) Avient ECCOH™ Non-halogenated flame retardant; high flexibility; environmental stress cracking resistance (ESCR); good electrical properties PA Polyamide (Nylon, PA) Arkema Rilsan® (PA) Chemical resistance; easy processing; abrasion resistance; low coefficient of friction; dimensional stability WIRE & CABLE: DIAGNOSTIC, IMAGING, LIFE SUPPORT, LABORATORY, Applications include: • Plug molding • Flexible jacket • Heater cable insulation • Flexible cords • Coil cords & cable Wire & Cable Component Solution Needs: • Materials compliant with UL, RoHS, REACH & WEEE, if needed • Materials with good chemical, moisture & abrasion resistance • Low smoke & non-halogen materials CUSTOM AVIENT SOLUTIONS FOR MEDICAL EQUIPMENT Custom Solution Needs Avient™ Custom Solutions Specialized materials to meet unique application requirements Avient Trilliant™ Healthcare products are a line of customized solutions specific for regulated medical devices; color branding expertise FDA-registered pre-colored resins and masterbatch options; color coding for safety and brand recognition Avient collaborates with key material suppliers to provide FDA-approved pre-colored resins Avient OnColor™ HC Plus offers customizable color masterbatch solutions pre-certified for biocompatibility using ISO 10993 and USP Class VI test protocol Reduced growth of microbes Avient WithStand™ additive technologies inhibit growth of microbes that often cause odor, staining and loss of mechanical properties AVIENT DISTRIBUTION Healthcare Supplier Line Card You face a unique set of challenges when designing parts for the healthcare industry.

RIGID COMPONENTS: DIAGNOSTIC, IMAGING, LIFE SUPPORT, LABORATORY, & MONITORING EQUIPMENT (housings & covers, monitor bezels, body panels, handles, battery enclosures, access panels, wands, coils) Rigid Component Materials compliant with ISO 10993 & USP Class VI, if required UL approved resins to meet flammability requirements Housings with toughness & good impact resistance Enclosures & components that withstand repeated cleanings High-flow materials for components with complex designs Copolyester, Polyester & PC/Polyester Blends Copolyester Eastman Tritan™ (Copolyester) High chemical resistance to a wide variety of hospital disinfectants; excellent toughness and impact resistance after disinfection; retains color and gloss after sterilization and disinfection; does not contain BPA, BPS or halogens Polybutylene Terephthalate (PBT) DuPont™ Crastin® & Rynite® (FR- PBT) 30% glass reinforced; flame retardant; good mold flow and electrical properties; high strength, stiffness, dimensional stability and heat resistance Polyester (PC/PET) & Polybutylene Terephthalate (PC/PBT) Covestro Makroblend® (FR-PC/PET) & (FR-PC/PBT) Strength; toughness; chemical resistance; flame retardant Covestro Makroblend® (Non-FR PC/PBT) Strength; toughness; chemical resistance; limited biocompatibility Trinseo EMERGE™ (FR-PC/PET) Chemical resistance; ignition resistance; limited biocompatibility PA, PVC, PC & PMMA Polyamide (Nylon, PA) Avient Trilliant™ XR Radiation Shielding (PA) Radiation shielding; green alternative for lead replacement; enhanced design freedom vs. lead; available in hard and soft durometers Arkema Rilsan® MED (PA11) & Rilsamid® MED (PA12) Chemical resistance; transparent and opaque; easy processing; creep resistance; temperature resistance; BPA-free; sterilizable by gamma, EtO and steam Polyvinyl Chloride GEON Performance Solutions Resilience™ HC (PVC) Excellent chemical resistance; good strength and stiffness; very good surface quality; inherently flame resistant; available in all medical colors; excellent solvent bonding to PVC Polycarbonate (PC) Trinseo EMERGE™ (PC) Ignition resistant; transparent and opaque; glass-filled also available PolyMethyl Methacrylate (PMMA) Altuglas Plexiglas® Acrylics (PMMA) Clarity; easy processing; chemical resistance; BPA free; ideal for light piping and lenses Styrenics & FR-PC/ABS Blends Styrenics Trinseo MAGNUM™ (ABS) Opaque; custom colors; excellent impact and flow; low residuals; full biocompatibility INEOS Styrolution Terlux® HD (MABS) Good clarity; good heat and overall chemical resistance; good impact strength; good solvent bonding to PVC; outstanding surface quality INEOS Styrolution Lustran® & Novodur® HD (ABS) Opaque appearance; outstanding chemical resistance; high impact strength; excellent balance of properties; ease of processability; bondable FR- Polycarbonate/ ABS Covestro Bayblend® Flame retardant; good impact resistance; dimensional stability; toughness Trinseo EMERGE™ Ignition resistant; limited biocompatibility; high flow; easy processing; glass-filled also available Flexible Component Solution Needs: Comfortable handles & grips Water-tight seals Durable feet or casters Durable keypads Flow control TPE, TPC-ET, TPU, TPV & Flexible PVC Thermoplastic Avient Versaflex™ HC Overmolding Series Proven healthcare solutions with hardness ranges 42–65 Shore A; autoclave, radiation and EtO sterilizable; bondable to many substrates; customizable haptics Arkema Pebax® MED Sterilizable by gamma and EtO; low energy return; soft touch; chemical resistance; overmolding material Thermoplastic Polyester DuPont™ Hytrel® Wide range of flexibility, stiffness, and processing options; Shore D between 30-82; BPA-free; excellent flex fatigue and toughness; low temperature flexibility; good chemical resistance Thermoplastic Polyurethane Covestro Texin® Biocompatible; soft touch; sterilizable; good chemical resistance; overmold for grips and handles; excellent bonding to polar substrates like PC; 70A to 95A Thermoplastic Vulcanizate (TPV) Avient Versalloy™ (TPV) Proven healthcare solutions with hardness ranges 45–90 Shore A; autoclave, radiation and EtO sterilizable; natural and colorable; smooth texture; bonds to PP Exxon Mobil Santoprene™ (TPV) Durable sealing performance; elastic recovery; excellent chemical resistance; compliance with medical standards Flexible Polyvinyl Chloride GEON Performance Solutions Geon™ Flexible PVC Engineered exclusively for the healthcare market; transparent and opaque colors; radiopaque grades available; durometer ranges from 55A to 40D; gamma and EtO sterilizable Thermoset Silicone Elastomers Thermoset Silicone Elastomers/ Liquid Silicone Rubber DuPont™ Liveo™ Silicone Elastomers (LSR) Biocompatible; non-irritating and non-sensitization; sterilizable; made without plasticizers, phthalates or latex FLEXIBLE COMPONENTS: DIAGNOSTIC, IMAGING, LIFE SUPPORT, LABORATORY, MONITORING EQUIPMENT (o-rings, gaskets, wheels, soft touch grips/handles, keypads/displays, diaphragms, seals) WIRE & CABLE: DIAGNOSTIC, IMAGING, LIFE SUPPORT, LABORATORY, & MONITORING EQUIPMENT (plug molding, heater cable insulation, flexible jacket, flexible cords, coil cords & cable) Wire and Cable Component Solution Needs: Materials compliant with UL, RoHS, REACH & WEEE, if needed Materials with good chemical, moisture & abrasion resistance Low smoke & non- halogen materials PVC Polyvinyl Chloride GEON Performance Solutions Geon™ Flexible PVC Inherent flame resistance; halogen-free; excellent chemical resistance; non-yellowing; proven safety record in wire and cable applications; high temperature grades available TPE, TPC-ET, TPU & POE Thermoplastic Polyester Arkema Pebax® Flexibility; chemical resistance; easy processing; abrasion resistance; low coefficient of friction Thermoplastic Polyester Elastomers (TPC-ET) DuPont™ Hytrel® REACH, RoHS and WEEE compliant; wide range of flexibility, stiffness, and processing options; 30D-82D; BPA-free; excellent flex fatigue and toughness; low temperature flexibility; good chemical resistance Thermoplastic Polyurethane Covestro Texin® RoHs, WEEE, and REACH compliant; excellent memory and recoil; abrasion resistance; Texin® Rx Series - medical grade Polyether TPU – 70A to 80D Polyolefin Elastomer (POE) Avient ECCOH™ Non-halogenated flame retardant; high flexibility; environmental stress cracking resistance (ESCR); good electrical properties PA Polyamide (Nylon, PA) Arkema Rilsan® (PA) Chemical resistance; easy processing; abrasion resistance; low coefficient of friction; dimensional stability CUSTOM AVIENT SOLUTIONS FOR MEDICAL EQUIPMENT Custom Solution Needs Avient™ Custom Solutions Specialized materials to meet unique application requirements Avient Trilliant™ Healthcare products are a line of customized solutions specific for regulated medical devices; color branding expertise FDA-registered pre-colored resins and masterbatch options; color coding for safety and brand recognition Avient collaborates with key material suppliers to provide FDA-approved pre-colored resins Avient OnColor™ HC Plus offers customizable color masterbatch solutions pre-certified for biocompatibility using ISO 10993 and USP Class VI test protocol Reduced growth of microbes Avient WithStand™ additive technologies inhibit growth of microbes that often cause odor, staining and loss of mechanical properties AVIENT DISTRIBUTION Healthcare Supplier Line Card You face a unique set of challenges when designing parts for the healthcare industry.

Information Systems Use Policy Effective date: September 1, 2021 Available on the Avient Ethics & Corporate Policies Page on the Loop Confidential 2 Avient IT Department Information Systems Use Policy September 1, 2021 Table of Contents Purpose .......................................................................................................................................................... 3 Scope.............................................................................................................................................................. 3 Usage ............................................................................................................................................................. 3 Expectations for Use of Information Systems ........................................................................................... 3 Prohibited Uses of Information Systems ................................................................................................... 3 Personal Use .............................................................................................................................................. 4 Social Media .............................................................................................................................................. 4 Enforcement and Monitoring ......................................................................................................................... 4 Questions and Additional Information .......................................................................................................... 5 Document Change and Review History ........................................................................................................ 5 Appendix A: Definitions................................................................................................................................ 6 Confidential 3 Avient IT Department Information Systems Use Policy September 1, 2021 PURPOSE This Information Systems Use Policy (“Policy”) establishes acceptable and prohibited uses of Avient’s Information Systems to protect Avient and its employees and affiliates from both intentionally and unintentionally harmful actions by Users. Confidential 4 Avient IT Department Information Systems Use Policy September 1, 2021 Additionally, the following Information Systems uses are prohibited unless specifically authorized by Avient or authorized Avient IT representatives: • Revealing account usernames, passwords, or other Personal Data to others or allowing use of Information Systems by others, including family and other household members; • Conducting any form of network monitoring that could intercept data not intended for the recipient User; • Circumventing User authentication or security of any Information Systems; or • Using personal devices to access Confidential Data or connect to Information Systems. Confidential 5 Avient IT Department Information Systems Use Policy September 1, 2021 QUESTIONS AND ADDITIONAL INFORMATION For additional details regarding cybersecurity and incidence response, please refer to Avient’s Cyber and Data Incident Response Policy.

Microsoft PowerPoint - PolyOne Investor Presentation 5.4.20_v8 P E O P LE P RO D U CT S P LA N E T P E RF O R MAN C E JVs Performance Products & Solutions Distribution Specialty To be the world’s premier provider of specialized polymer materials, services and solutions To be the world’s premier provider of specialized polymer materials, services and sustainable solutions 2016 2017 2018 2019 Lightweighting Reduced Material Requirements Improved Recyclability Renewable Energy Applications Eco-conscious Bio-derived Content Reduced Energy Use VOC Reduction $275M $325M $355M $410M 14% Total Annual Growth 9% Organic Annual Growth PolyOne Corporation 33 Adjusted EPS attributable to PolyOne common shareholders is calculated as follows: 2009* 2010* 2011* 2012* 2013* 2014* 2015* 2016** 2017** 2018 2018*** Q1 2019*** 2019 Q1 2020 Net income from continuing operations attributable to PolyOne common shareholders Joint venture equity earnings, after tax Special items, before tax(1) Special items, tax adjustments(1) Adjusted net income from continuing operations attributable to PolyOne common shareholders $ 106.7 $ 152.5 $ 153.4 $ 53.3 $ 94.0 $ 78.0 $ 144.6 $ 166.4 $ 173.5 $ 161.1 $ 87.7 $ 22.4 $ 75.5 $ 33.1 (19.0) (14.7) (3.7) — — — — — — — — — — — (48.7) 24.2 (48.1) 55.1 46.3 164.2 87.6 23.8 32.9 59.5 58.7 12.2 61.7 9.6 (27.2) (96.7) (24.7) (18.9) (13.7) (73.7) (58.7) (15.9) (24.8) (25.3) (25.1) (1.2) (5.9) (1.0) $ 11.8 $ 65.3 $ 76.9 $ 89.5 $ 126.6 $ 168.5 $ 173.5 $ 174.3 $ 181.6 $ 195.3 $ 121.3 $ 33.4 $ 131.3 $ 41.7 Diluted shares 93.4 96.0 94.3 89.8 96.5 93.5 88.7 84.6 82.1 80.4 80.4 78.2 77.7 86.7 Adjusted EPS attributable to PolyOne common shareholders $ 0.13 $ 0.68 $ 0.82 $ 1.00 $ 1.31 $ 1.80 $ 1.96 $ 2.06 $ 2.21 $ 2.43 $ 1.51 $ 0.43 $ 1.69 $ 0.48 * Historical results are shown as presented in prior filings and have not been updated to reflect subsequent changes in accounting principle, discontinued operations or the related resegmentation. ** Pro forma for sale of Designed Structures and Solutions segment (DSS). *** Pro forma for sale of Performance Products and Solutions segment (PP&S). Reconciliation to Adjusted EPS Excluding Special Items and Impacts of February 2020 Equity Offering Three MonthsEnded March 31, 2020 Net income from continuing operations – GAAP $ 33.1 Special items, after tax(1) 8.6 After tax interest income earned on equity proceeds, included in Interest expense, net (0.7) Adjusted net income excluding special items and impact of interest income on equity proceeds $ 41.0 Diluted weighted-average shares used to compute earnings per common share 86.7 Weighted-average impact of 15.3 million shares issued in February 2020 equity offering (9.3) Diluted weighted-average shares excluding impact of shares issued in February 2020 equity offering 77.4 Adjusted EPS - excluding special items and the net impact of equity offering $ 0.53 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to PolyOne shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to PolyOne shareholders, excluding special items, to assess performance and facilitate comparability of results.

Industrial Valle del Cinca s/n Apartado 18 22300 Barbastro, Huesca Spain has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 14001:2015 The Environment Management System is applicable to: DEVELOPMENT, PRODUCTION & DISTRIBUTION OF TECHNICAL THERMOPLASTICS.

Industrial Valle del Cinca s/n Apartado 18 22300 Barbastro, Huesca Spain has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: DEVELOPMENT, PRODUCTION & DISTRIBUTION OF TECHNICAL THERMOPLASTICS.

Plasticos 28 Santa Clara Coatitla 55540 Ecatepec de Morelos, Estado de México Mexico Scope Category I Production of customer specific Masterbatches for Food packaging materials on the dedicated extrusion lines Normative base ISO 22000:2018 Food Safety Management Systems Requirements for any organization in the food chain Reg. no. 46389 Validity 25. 02. 2021 – 24. 02. 2024 Issue 30. 06. 2021 Swiss Madesqs.ch F.

MEDICAL TUBING EXTRUDER B I O P H A R M A C E U T I C A L T U B I N G • Low leachables & extractables • Great tensile performance and kink resistance • Good thermal weldability • Excellent clarity and medical blue tint • ISO 10993-4 & 5, USP Class VI & Animal Derivative Free (ADF) • Supplied drop-in material replacement to overcome supply constraints of incumbent TPE • Offered a lower extractable profile than comparable materials in the market • Enabled easy material transition without changes in tooling or thermal welding machine settings • Formulated solution with proprietary additives to provide clarity and prevent yellowing after sterilization Versaflex™ HC BT218 Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?