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Toners and colorants can create brighter, haze-free PET containers. Contact us for even more ideas on how we can help you reach your current and future sustainability goals. https://www.avient.com/products/polymer-additives/clarifier-and-toner-additives/colormatrix-optica-toners-pet https://www.avient.com/products/polymer-colorants/liquid-color-concentrates/hiformer-liquid-masterbatches https://www.avient.com/products/polymer-additives/reheat-additives-pet/colormatrix-joule-reheat-additive-pet https://www.avient.com/products/polymer-additives/reheat-additives-pet/colormatrix-smartheat-rhc https://www.avient.com/products/polymer-additives/processing-enhancement-additives/colormatrix-reprize-iv-builder-pet https://www.avient.com/products/polymer-additives/processing-enhancement-additives/cesa-extend-additives https://www.avient.com/products/polymer-additives/processing-enhancement-additives/colormatrix-eze-slip-agent-pet https://www.avient.com/products/polymer-additives/acetaldehyde-scavengers-pet/colormatrix-aazure-acetaldehyde-control-technology-pet https://www.avient.com/products/polymer-additives/acetaldehyde-scavengers-pet/colormatrix-triple-aa-scavenger-pet OXYGEN SCAVENGERS Challenge: Oxygen can permeate PET bottles, reducing a product’s shelf life. This literature shall NOT operate as permission, recommendation, or inducement to practice any patented invention without permission of the patent owner. 1.844.4AVIENT www.avient.com https://www.avient.com/products/polymer-additives/oxygen-scavengers/colormatrix-amosorb-oxygen-scavenger-pet https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/colormatrix-ultimate-uv-light-barrier-pet https://www.avient.com/products/polymer-colorants/liquid-color-concentrates/impress-high-gloss-metallic-effect-colorants https://www.avient.com/products/polymer-colorants/color-additive-combination-masterbatches/smartbatch-color-additive-concentrates https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-ir-sortable-black-recyclable-packaging

Clark joined Avient in 2024 from Nouryon, a global specialty chemicals organization where he served as Chief Technology Officer.

Sequeira joined Avient in May 2024, bringing nearly 25 years of experience in information technology to this role.

CORE plastisols offer strength and flexibility while being phthalate-free, providing an alternative for markets and applications affected by strict guidelines. The continuous assistance from their experts has been instrumental in ensuring our ongoing progress and achievement.” © 2023, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 Click here to learn more about Avient CORE™ Non-Phthalate Plastisols or call 1-844-4AVIENT https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge-0 https://www.avient.com/products/vinyl-formulations/vinyl-plastisols-organosols/core-non-phthalate-plastisols

Irwin joined Avient in 2024 after a 22-year career at 3M, where he held roles in sales, global marketing and market development leadership, and P&L responsibility for global businesses. From 2019–2024 he served as Global Vice President for the $1.2B Abrasive Systems Division of 3M’s Safety and Industrial business group.

Certificate Number: CERT-0116814 Initial Certification Date: 24 November 2010 Date of Certification Decision: 25 March 2024 Issuing Date: 25 March 2024 Valid Until: 31 March 2027 Calin Moldovean President, Business Assurance Intertek Testing Services NA, Inc. dba Intertek, 4700 Broadmoor SE Suite 200 Kentwood, Michigan 49512, United States In the issuance of this certificate, Intertek assumes no liability to any party other than to the Client, and then only in accordance with the agreed upon Certification Agreement.

We focused on controlling costs and reducing working capital, generating an additional $90 million of free cash flow above our previous projections. A recording of the webcast and the slide presentation will be available at avient.com/investors/events-presentations immediately following the conference call and will be accessible for one year. https://www.avient.com/investors https://edge.media-server.com/mmc/p/a8tcrg4m https://www.avient.com/investors https://register.vevent.com/register/BI125445d5780d4c898d63ec3c1fa53045 https://www.avient.com/investors/events-presentations 5 About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. For more information, visit https://www.avient.com. 6 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995.

KEY CHARACTERISTICS • Formulated without intentionally added fluorinated substances • Free of slip agents, plasticizers, and biocides, avoiding those types of ingredients that may cause interference with protein or DNA assays • Based on high-quality virgin PP resin suitable for labware applications • Achieves high water contact angles1 contributing to durable hydrophobicity • Delivers hydrophobic performance after long- term storage or heat aging2 • Eliminates the need for a secondary low- retention coating • Demonstrates low leachability, critical for pipette tips and diagnostic devices • Compatible with standard PP injection molding temperatures (210°C–250°C) with a wide range of injection fill speeds • Withstands typical electron-beam and Gamma radiation sterilization doses with minimal yellowing and fast recovery of hydrophobicity post-radiation • Achieves low optical haze and good clarity in molded parts • Non-animal derived versions available REFERENCES 1 https://www.nanoscience.com/techniques/tensiometry/contact-angle-measurements-and-wettability/ 2 https://westpak.com/industry-solutions/medical-device/accelerated-aging/ LOW RETENTION PERFORMANCE FOR PIPETTE TIPS (Green/Blue Dye Water Test) PROPERTY RESULT Water Contact Angle (ASTM D5946) ~ 108° Residual liquid in a low-retention test (green or blue dyed water is used as test fluid) ~ 20% (in weight) vs. that of an unmodified PP control Transmittance (ASTM D1003*) ≥ 85% Optical Haze (ASTM D1003*) ≤ 60% Processing Temperature Range 210°C–250 °C PERFORMANCE PROPERTIES * Measurements based on 0.8 mm thick flat chips molded of Cesa Non-PFAS Low Retention G1-BP compounds Copyright © 2025, Avient Corporation.