Equipment Benefi t Scanning Electron Microscopy with Energy Dispersive X-ray System Capability to look at material and property defects at the most detailed level with magnifi cation up to 800,000x Digital Optical Microscope Ability to non-destructively capture fully-focused images with a depth-of-fi eld 20x larger than conventional microscopes Microwave Sample Digestion System Aids in sample preparation for heavy metal analysis Mechanical Spectrometer Estimates how a medical device will structurally perform when subjected to the load within a human body Differential Scanning Calorimeter Analyzes the transition temperatures of materials and also determines the purity of the materials to predict likelihood of defects Chromatography Accessories Facilitates compositional analysis of materials and devices as well as the ability to analyze extractables Copyright © 2011, Polymer Diagnostics Inc. We’ll tell you how your product will perform—and why Our experts work hand-in-hand with your technical staff to answer the most diffi cult questions—Why did your product fail? We’ll tell you how your product will perform—and why Our experts work hand-in-hand with your technical staff to answer the most diffi cult questions—Why did your product fail?

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • Disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • The effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • The current and potential future impact of the COVID-19 pandemic on our business, results of operations, financial position or cash flows, including, without limitation, any supply chain and logistics issues; • Changes in laws and regulations regarding plastics in jurisdictions where we conduct business; • Fluctuations in raw material prices, quality and supply, and in energy prices and supply; • Production outages or material costs associated with scheduled or unscheduled maintenance programs; • Unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials (APM); • An inability to raise or sustain prices for products or services; • Our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • Information systems failures and cyberattacks; • Amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; and • Other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation and any recessionary conditions Use of Non-GAAP Measures This presentation includes the use of both GAAP (generally accepted accounting principles) and non-GAAP financial measures. Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share and Free Cash Flow, to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. These personal values begin with each of us—the judgments and decisions we make as individuals affect the way Avient is viewed in the marketplace and in the communities where we work.

SAFETY Equipment security, fire prevention, user safety, functional performance SOLUTIONS: Flame retardants, anti-static and conductive formulations, antimicrobials, light diffusion technology LONGEVITY Long service life, chemical resistance SOLUTIONS: Scratch and mar resistant additives, impact modifiers, reinforced materials, rheology modifiers, compatibilizers OUTDOOR DURABILITY & WEATHERABILITY UV protection, chemical resistance, wind and impact resistance, color stability, light spectrum management, polymer integrity SOLUTIONS: UV resistant formulations, dimensional stabilizers, antioxidants, IR reflective, scratch and mar resistant solutions, modifiers and compatibilizers SUSTAINABILITY Eco-conscious options, lightweighting, VOC or carbon emissions reduction, reduced energy use SOLUTIONS: Bio-derived colorants and additives, chemical foaming agents, molded-in metallics, post-consumer recycled (PCR) formulations VISUAL AESTHETICS Custom colors, special effects and enhancements SOLUTIONS: Metallic or chrome- look colorants, pearlescents, granite or marble effects, wood grains, glow-in-the-dark technology HEALTH & HYGIENE Protection from mold, mildew, bacteria and unwanted odors SOLUTIONS: Antimicrobial and antifungal technologies, surface energy modification GO-TO-MARKET SUPPORT We have resources beyond our product technologies to help you get to market faster and more effectively Streamlined product development services through Avient Design • Color inspiration and technical guidance from ColorWorks™ Design & Technology Centers • Risk mitigation through invaluable regulatory compliance support • Accelerated commercialization with UL testing and part validation, and UL- recognized colorants FOCUS AREA APPLICATIONS KEY REQUIREMENTS TECHNOLOGIES Visual Aesthetics • Cabinets and enclosures • User interfaces and touchpoints • Interactive touch screens • Lighting • Canopies • Side panels and base plates • Cables • Handles and grips • Closeouts • Informed color choices and customization options • Visual appeal for brand integrity • High- and low- gloss finishes • Consistent physical performance and dimensional stability • Special effect colorants • Smartbatch Combination Colorants & Additives • Custom and pre-colored formulations • ColorWorks Design & Technology Centers Outdoor Durability & Longevity • Cabinets and enclosures • Canopies • Side panels and base plates • Ventilation panels • Closeouts • Cable retractors • Interactive touch screens • Outdoor weathering • Extreme (hot/cold) temperature resistance • Flexibility and ductility • Impact resistance • Chemical resistance • UL-recognized materials • Flame retardant formulations • Impact modifiers • Surface energy modifiers • EMI/RFI shielding solutions • Thermal and electrical management technology Health & Hygiene • Cabinets and enclosures • User interfaces and touchpoints • Cables • Sockets • Handles and grips • Plugs and adaptors • Filters • Kiosks • Microbial and fungal efficacy • Safe to touch • Visual clarity • Surface energy modifiers • Antimicrobial and anti- fungal solutions Sustainability • Structural panels • Connectors and electrical components • Thermal modules • Cabinets and enclosures • Handles and grips • Lighting • Canopies • Side panels and base plates • Receptacles • Reduced part weight or materials consumed • Recyclability • VOC reduction • PCR incorporation • Lower carbon footprint • Chemical foaming agents • Molded-in color (MIC) metallics • Laser marking technologies • Eco-conscious raw materials • Bio-derived technologies • Post-consumer recycled (PCR) content • Lower carbon footprint solutions 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

Overview • FIBER-LINE® extrusion is the process of forming a polymer jacket of various thickness around a core of high-performance fibers • Fiber core can be parallel, twisted, or in rope form • Polymer jacket selected to optimize flex, chemical, temperature, & UV resistance Key Features • .50mm – 30.00mm size capability • Protect the core from mechanical, environmental, and chemical damage • Extend life of cable or strength member • Enhance flame & chemical resistance • Improve UV resistance • Many polymers available FIBER-LINE® FIBERS SUITABLE FOR EXTRUSION • Kevlar® Para-Aramid • Vectran® LCP • Zylon® PBO • Technora® • Carbon Fiber • Fiberglass FIBER-LINE® PRODUCTS ADDED BY EXTRUSION • Strength members • Tracer-wire • Micro-cable • Ruggedized cable Our Polymer Offering • EPC • ETFE • FEP • Hytrel • PFA • Polyethylene • Polypropylene • Polyurethane • PVC • PVDF EXTRUSION FIBERS PROCESSES PRODUCTS FIBER OPTICAL CABLES MOVING HIGH PERFORMANCE FIBERS FORWARD This data is provided for informational purposes only, and does not constitute a specification. EPC EPC BARE PERFORMANCE Operating Temperature Range -65°C - 80°C Chemical Resistance P Flame Resistance X UV Resistance P Flex Properties P FEP BARE PERFORMANCE Operating Temperature Range -195°C - 200°C Chemical Resistance P Flame Resistance P UV Resistance P Flex Properties O EXTRUSION FIBERS PROCESSES PRODUCTS ETFE BARE PERFORMANCE Operating Temperature Range -100°C - 150°C Chemical Resistance P Flame Resistance P UV Resistance P Flex Properties P HYTREL BARE PERFORMANCE Operating Temperature Range -70°C - 125°C Chemical Resistance P Flame Resistance P UV Resistance P Flex Properties P ETFE FEP HYTREL FIBER OPTICAL CABLES MOVING HIGH PERFORMANCE FIBERS FORWARD This data is provided for informational purposes only, and does not constitute a specification. PFA PFA BARE PERFORMANCE Operating Temperature Range -200°C - 260°C Chemical Resistance P Flame Resistance P UV Resistance P Flex Properties P POLYPROPYLENE BARE PERFORMANCE Operating Temperature Range -45°C - 105°C Chemical Resistance P Flame Resistance X UV Resistance P Flex Properties X EXTRUSION FIBERS PROCESSES PRODUCTS POLYETHYLENE BARE PERFORMANCE Operating Temperature Range -65°C - 80°C Chemical Resistance P Flame Resistance X UV Resistance P Flex Properties O POLYURETHANE BARE PERFORMANCE Operating Temperature Range -55°C -125°C Chemical Resistance P Flame Resistance X UV Resistance P Flex Properties P POLYETHYLENE POLYPROPYLENE POLYURETHANE FIBER OPTICAL CABLES MOVING HIGH PERFORMANCE FIBERS FORWARD This data is provided for informational purposes only, and does not constitute a specification.

GLOBAL FRIDGE MANUFACTURER R E F R I G E R A T O R B A S E • Provide 5VA flame retardant rating • Utilize existing molds • Keep the same mechanical and physical properties as current material • Dimensional stability – limit shrinkage of final part • High strength – bearing the weight of the whole fridge • Maintain or reduce weight • Expedited development time, providing solutions ready for testing within a week • Enabled first time approval through close customer collaboration • Provided excellent in person support to both customer and moulder throughout trials • Gave technical advice on how to adjust processing parameters, enabling the use of existing molds with the new material Maxxam™ FR Flame Retardant Formulations KEY REQUIREMENTS WHY AVIENT?

ISSUE AVIENT SOLUTION WHAT IT IS WHAT IT DOES Bottle quality and strength; energy usage ColorMatrix™ SmartHeat RHC Process aid, approved by Association of Plastics Recyclers (APR), which helps to reduce carbon emissions and improve the quality and performance of rPET, allowing for higher levels of rPET to be used. Solutions for rPET Converters ISSUE AVIENT SOLUTION WHAT IT IS WHAT IT DOES Color consistency, yellowing ColorMatrix™ SmartHeat RHC Tone Recycle-friendly toner containing APR approved SmartHeat RHC process aid Corrects the natural yellowing of PET through the recycle process while also reducing yellowing at root cause.

1 How to create invoices through the Coupa Supplier Portal (CSP) Suppliers Guide For Avient Suppliers View and Manage Invoices In order to view your Invoices page, click on the Invoices tab on the main menu. https://supplier.coupa.com/help/how-to-set-up-e-invoicing/ 6 In the Subtotal section, you can enter values and select tax rates for shipping, handling, and miscellaneous costs.

However, it is complex and requires advanced data to more accurately predict how a material will realistically perform in an end-use application. Avient Corporation, a premier provider of specialised and sustainable material solutions and services, has invested in testing equipment, personnel, and software to help its customers gain insight into its unique material solutions and how they perform.

How to change language in the Coupa Supplier Portal (CSP) Suppliers Guide The Coupa Supplier Portal (CSP) is available in several user-selectable languages.

Committees The Board has an Audit Committee, a Compensation Committee, a Governance and Corporate Responsibility Committee, and an Environmental, Health and Safety Committee. The Board administers its risk oversight function directly and through its committees. 8 The Board has delegated specific risk oversight responsibility to the committees of the Board as follows: (i) the Audit Committee oversees risks related to the Company’s financial statements, financial reporting processes, internal controls, information technology, and cybersecurity; (ii) the Compensation Committee oversees risks related to the Company’s compensation programs; (iii) the Governance and Corporate Responsibility Committee oversees risks related to the Company’s programs, policies, and practices related to certain sustainability and governance matters, including a review of reports on corporate responsibility and/or sustainability published by the Company; and (iv) the Environmental, Health and Safety Committee oversees risks related to safety, health, physical security, environmental, and product stewardship matters.