Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. In addition, operating income before the effect of special items is a component of Avient annual and long-term employee incentive plans and is used in debt covenant computations. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.

Main advantages of liquid color systems include: • Excellent statistical distribution for consistently high quality products • Shot-to-shot and batch-to-batch consistency • Single heat history • Minimal wastage due to high level dosing accuracy and product recovery rates • Highly concentrated formulations with capability of very low addition rates • Reduced inventory and storage requirements CHARACTERISTICS OF HIGH PERFORMANCE STABLE LIQUID FORMULATIONS Under storage • Remains stable • Solid-like at low shear • No sedimentation During dosing • Exceeds yield stress • Liquid-like behavior • Flows easily After dispensing • Self-levelling • Rebuilds its structure INSPIRATION AND INSIGHT When developing a brand new color, consulting with your color provider early in the decision process can prove invaluable in gaining insight into which formulation will be most effective and can open up new ideas and opportunities for new colors, color effects, polymer options or finishes that you may not be familiar with. When it comes to the creative application of color and special effects in product design and branding, Avient’s ColorWorks™ centers are a source of ideas, inspiration and technical guidance. Streamlining this process and being able to react quickly and cost-effectively to market dynamics can give that all-important competitive edge.

Main advantages of liquid color systems include: • Excellent statistical distribution for consistently high quality products • Shot-to-shot and batch-to-batch consistency • Single heat history • Minimal wastage due to high level dosing accuracy and product recovery rates • Highly concentrated formulations with capability of very low addition rates • Reduced inventory and storage requirements CHARACTERISTICS OF HIGH PERFORMANCE STABLE LIQUID FORMULATIONS Under storage • Remains stable • Solid-like at low shear • No sedimentation During dosing • Exceeds yield stress • Liquid-like behavior • Flows easily After dispensing • Self-levelling • Rebuilds its structure INSPIRATION AND INSIGHT When developing a brand new color, consulting with your color provider early in the decision process can prove invaluable in gaining insight into which formulation will be most effective and can open up new ideas and opportunities for new colors, color effects, polymer options or finishes that you may not be familiar with. When it comes to the creative application of color and special effects in product design and branding, Avient’s ColorWorks™ centers are a source of ideas, inspiration and technical guidance. Streamlining this process and being able to react quickly and cost-effectively to market dynamics can give that all-important competitive edge.

Leadership, EHS&S-PS, Facility Services, Design & Development, Information Technology, Sourcing, Logistics, Legal, and Human Resources Certificate No: 65537 Certification Date: 29 SEP 2023 Effective Date: 27 FEB 2025 Expiration Date: 27 SEP 2026 Revision Date: 05 MAR 2025 Dominic Townsend, PresidentDominic Townsend, President Copyright as of the Effective Date, ABS Quality Evaluations, Inc. No:8 , 34538 Esenyurt, Türkiye Avient Corporation Design and Manufacture of Colorants and Additives for Plastics No. 8 Third Chin Bee Road, Jurong Industrial Estate Singapore 618684 Avient Corporation Design & Manufacture of Color, Additive Concentrate & Specialty Compounds Kalol Works, Shed No.18-22, GIDC Estate Kalol Gujarat 389330 India Copyright as of the Effective Date, ABS Quality Evaluations, Inc. Toluca 2000 Toluca Estado de México 50200 Mexico ISO 14001:2015ISO 14001:2015 Certificate Of ConformanceCertificate Of Conformance ANNEXANNEX Certificate No: 65537 Avient CorporationAvient Corporation At the below facilities FACILITY NAMEFACILITY NAME FACILITY ACTIVITYFACILITY ACTIVITY ADDRESSADDRESS Copyright as of the Effective Date, ABS Quality Evaluations, Inc.

A RANGE OF WORLD-CLASS SERVICES COLOR TECHNOLOGY Custom matching, saturated colors, and special effects to fill market niches, eliminate secondary operations, and strengthen your brand PCR COLOR PREDICTION SERVICE Digital prediction tool illustrating color possibilities and limitations of post-consumer recycled (PCR) content to simplify decision making and shorten time to launch PRODUCT CARBON FOOTPRINT (PCF) CALCULATOR Methodology that evaluates the carbon footprint of Avient solutions, contributing a data point to your overall carbon footprint and supporting credible reporting AVIENT DESIGN A highly specialized group of industrial designers and project engineers that provides advanced design and detailed analysis to foster higher levels of innovation TESTING AND VALIDATION Fully accredited and in-house testing capabilities to generate data for insight into material behavior, environmental effects, and more REGULATORY SUPPORT Dedicated product stewardship team assisting with new product approvals to reduce regulatory overhead and minimize risk COLOR AND ADDITIVE DESIGN SERVICES Trend and color insights along with product development assistance from concept through commercialization to optimize design and gain speed to market RESEARCH AND DEVELOPMENT Long-term strategic solution development that addresses complex and unmet product innovation needs APPLICATION DEVELOPMENT TECHNICAL SUPPORT Technical experts specifically trained to work directly with your team to solve definitive application challenges with new or existing approaches FIELD TECHNICAL SERVICE Onsite support for tool design, startup, and production optimization to gain manufacturing efficiencies and help resolve technical issues Common compliance categories where we can assist: • UL • USP Class VI • ISO 10993 • ISO 1345 • REACH • RoHS • FDA • EU 10/2011 • China GB • MERCOSUR • USP • ISP • CPSIA • Prop 65 ColorWorks™ Design & Technology Centers Our global ColorWorks centers are focused on design, technology, and innovation for plastics. They use an onsite collaborative approach to accelerate and streamline the product development process, from initial consultation through the translation of ideas into colors, shapes or effects.

COLORANTS & ADDITIVES FOR HEALTHCARE Essential polymer solutions for critical healthcare applications WHEN MATERIAL EXPERTISE IS CRITICAL AESTHETIC APPEAL Regulatory compliant and approved masterbatch colors use custom polymer colorants to achieve any shade SPECIAL EFFECTS Enhance your brand and stand apart with pearlescent, metallic, iridescent, fluorescent or thermo-chromatic effects SOLID TO LIQUID SOLUTIONS Choose from a full range of available color solutions, from liquid color to solid product forms ANTIMICROBIALS Efficacy performance and regulatory requirements are met in a wide range of resins compatible with Withstand™ antimicrobial technology SURFACE ENERGY MODIFICATION Additive technologies such as low retention, hydrophobic, lubricious, light diffusion, or anti-stat provide desired surface manipulation Materials used for today’s medical devices, parts and pharmaceutical packaging contribute significantly to performance and, in turn, to a patient’s health and well-being. Customize and optimize into a practical, cost effective solution to simplify ordering, processing, inventory control, and delivery. 1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.

APPLICATION BULLETIN Resilience™ HC for Medical Device Housings Offering Improved Resistance to Hospital Disinfectants EFFECT ON POLYMER HOUSINGS FOR MEDICAL DEVICES Unfortunately, the increased disinfection practices among healthcare providers have another effect. RESILIENCE™ HC OUTPERFORMS COMPETING POLYMERS Design engineers are increasingly looking more frequently for better chemical resistance properties in rigid device housings to combat the effects of disinfectants.

ColorWorks™ Design & Technology Centers ColorWorks™ Design & Technology Centers are a connective network of inspiring meeting spaces that enable the collaborative design of high-impact color and effect concepts. Additional Services • Color consultation to select or develop quick color and effect concepts • Polymer technology consultation to find solutions for technical and material challenges • Prototyping and sampling to best visualize color and effect considering polymer type, shape, and texture • Brand color management to ensure global color consistency • Color education and training to impart plastic coloration knowledge to non-experts • ColorForward™ color trend forecasting tool to provide insights into the CMF concepts expected to trend in the coming years Capabilities Multi-disciplinary Expertise Experts in CMF, industrial and conceptual design, color trends, polymer and color technology, formulation Extensive Toolbox Extensive color libraries and trend books, mood board creation, physical/virtual prototyping, cost evaluation, technical feasibility evaluation, sampling Valuable Networking Internal networking with Avient departments such as Avient Design, marketing, product safety, color matching labs, technology, sustainability group and external networking with designers, color associations, consultants, raw material providers Strategic Locations Locations in Asia, EMEA, Latin America and the U.S. 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

Forty percent of our workforce is now trained in these effective lean principles dollars at the exchange rates in effect at the balance sheet date. Management has assessed the effectiveness of PolyOne’s internal control over financial reporting as of December 31, 2011 and has concluded that such internal control over financial reporting is effective.

Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude. In addition, operating income before the effect of special items is a component of Avient annual and long-term employee incentive plans and is used in debt covenant computations. Senior management believes these measures are useful to investors because they allow for comparison to Avient's performance in prior periods without the effect of items that, by their nature, tend to obscure Avient's operating results due to the potential variability across periods based on timing, frequency and magnitude.