Avient is a premier provider of specialty polymer formulations, color and additive systems, packaging solutions and polymer distribution. Facility Locations & Businesses Berea, OH; Color Matrix Bethel, CT; Colorant Chromatics Elk Grove, IL; Color and Additives Glendale, AZ; Color and Additives Lockport, NY; Color and Additives Kennesaw, GA; Specialty Inks & Coatings La Porte, IN; Sil Co Tec Lehigh Valley, PA; Color and Additives Massillon, OH; GSDI Mountain Top, PA; Specialty Coatings North Baltimore, OH; Specialty Coatings Norwalk, OH; Color and Additives St. Avient is a premier provider of specialty polymer formulations, color and additive systems, packaging solutions, and polymer distribution.

INCIPIO P H O N E C A S E • Customized a post-consumer recycle (PCR) grade formulated with 30% recycled content that delivered similar performance to a prime PC grade • Achieved high yield rate through strict quality control over recycled products • Offered RoHS and REACH compliant solution to support applications with regulatory requirements reSoundTM R PC Recycled Material WHY AVIENT? AVIENT SOLUTION SUSTAINABILITY + CLEAR COLOR LEARN MORE Copyright © 2021, Avient Corporation. KEY REQUIREMENTS • Post-consumer recycled material to reduce carbon footprint • Maintain high transparent color even after using recycled PC • Stable color range and strict black spot control https://www.avient.com/products/engineered-polymer-formulations/eco-conscious-formulations/resound-r-pc-recycled-polycarbonate-solutions

OFF-ROAD VEHICLE BRAND H O O D P A N E L • High gloss • Scratch appearance resistance • Ease of processing • Provided technical support from concept to production • Conducted FEA and mold flow analysis • Had solutions for either natural plus concentrate or pre-colored to best meet customer needs • Customized colors to match brand identity and preference Artisan™ Nylon PA6 Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION PAINT REPLACEMENT LEARN MORE Copyright © 2020, Avient Corporation. https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/artisan-pre-colored-thermoplastics-paint-replacement

COLORABILITY + SLIP RESISTANCE AVIENT SOLUTION VACUUM CLEANER MANUFACTURER V A C U U M C L E A N E R W H E E L • Excellent slip resistance and wet grip • Easy processing • Easy coloring • Offered an easy processing TPE suitable for coloring with masterbatch to meet customer preference • Provided material solution ideal for meeting critical tire performance needs for slip resistance and grip during operation Versaflex™ D3226N KEY REQUIREMENTS WHY AVIENT? LEARN MORE Copyright © 2020, Avient Corporation.

PHONE CASE MANUFACTURER P H O N E C A S E • Formulated TPE with 43% bio-based content plus favorable UV resistance and vibration damping performance compared to standard TPE • Received radiocarbon (C14) international certificate for bio-based content • Provided excellent bonding ability with good aesthetics • Matched design specs with an easily colored material using traditional TPE colorants reSoundTM OM TPEs WHY AVIENT? AVIENT SOLUTION SUSTAINABILITY + COLORABILITY LEARN MORECopyright © 2021, Avient Corporation.

LEADING MEDICAL TRAINING COMPANY M E D I C A L M A N I K I N S • Ability to color code various body parts for more accurate teaching and instruction • Maintain durability and performance through repeated use in a variety of training scenarios • Meet customer’s regulatory requirements • Provided specific colors and hardness for easier identification of body parts • Supplied a non-phthalate plastisol formulation that maintained strength and flexibility over an extended time • Offered robust technical support and regulatory assistance to meet all compliance directives as required by customer Core™ Non-Phthalate Plastisols KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION COLOR + PERFORMANCE LEARN MORE Copyright © 2023, Avient Corporation.

Validity Avient (Taiwan) Co. Ltd. 30, Hsing Pang Road 33068 Taoyuan Taiwan Avient Colorants Sweden AB Järnyxegatan 7 Box 9053 200 39 Malmö Sweden Avient Colorants USA LLC 17 Foss Rd. Validity Avient Colorants Singapore Pte Ltd 8 Third Chin Bee Road Jurong Industrial Estate Singapore 618684 Singapore / 3 Appendix Page 3 of 3 The validity of this appendix depends on the validity of the main certificate.

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. Each of such adjustments has not yet occurred, are out of Avient’s control and/or cannot be reasonably predicted. FX -1.5% FX -0.5% Total Avient -2.0% Q 1 2024 R ES U LT S Q1 2024 PERFORMANCE VS.

WOON KEAT MOH Senior Vice President, President Color, Additives & Inks–Americas and Asia Woon Keat Moh (“Moh”) is senior vice president, president, Color, Additives & Inks, Americas and Asia regions for Avient Corporation, a premier provider of specialized and sustainable material solutions and services. This has included Sales Director for Avient’s Color and Additives segment in Asia and General Manager of Engineered Materials Asia. He is based in Avient’s world headquarters located outside Cleveland, Ohio.

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. Each of such adjustments has not yet occurred, are out of Avient’s control and/or cannot be reasonably predicted. Senior management believes the measures described above 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.