NOTE: On July 1, 2020, PolyOne and Clariant Masterbatch joined together as Avient, a new kind of materials company focused on conquering customer challenges and unlocking the potential for innovation and sustainability around the globe. As of August 2020, the Alliance has nearly 50 member companies and supporters representing global companies and organizations across the plastic value chain. Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation +1 440-930-1988 michelle.maniscalco@avient.com

Mistake 1 If fear of the unknown is an issue, or if a former experience with metallics or pearlescents, for example, has created fear of using them again, consider asking your colorant supplier for ways to avoid these issues.  Learn more about your polymer coloring options by contacting an expert at Avient today!

Get Help Now +1-866-737-2066 V-0, V-1, V-2 and 5VA/5VB ratings for more than 200 specific engineering resins Electric Vehicle Supply Equipment Solutions

The company maintains its previously communicated full-year adjusted EPS guidance of $3.00, which is an increase of 55% over the prior year adjusted EPS of $1.93. 2 "This has been one of the most challenging years we have experienced as a result of navigating the COVID pandemic and an unprecedented combination of inflation, supply chain disruptions, and labor shortages,” Mr. To access, dial 1-855-859-2056 (domestic) or 1-404-537-3406 (international) and provide conference ID number 7899765. Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended September 30, Nine Months Ended September 30, 2021 2020 2021 2020 Sales $ 1,219.8 $ 924.5 $ 3,617.3 $ 2,245.1 Operating Income 78.7 33.5 307.2 124.3 Net income from continuing operations attributable to Avient shareholders 52.9 1.7 201.0 57.8 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.58 $ 0.02 $ 2.20 $ 0.64 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.57 $ 0.02 $ 2.18 $ 0.64 Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

September 1, 2023 SHANGHAI – September 1, 2023 – Today, Avient Corporation will exhibit at Wire China 2023, highlighting its specialized material solutions and customized services for the wire and cable industry.   With our complete range of wire and cable solutions for applications in telecommunications, electronics, and transportation, Avient can help consistently meet product specification challenges and add value through ease of processing, product performance, and cost-saving,” said Say-Eng Lee, vice president and general manager, Color & Additives Asia at Avient.  

IQ Design assists customers in identifying time and cost savings opportunities within their new product development process. May 1 Rose, Vice President, Corporate Communications, PolyOne Corporation, +1 440-930-3162, kyle.rose@avient.com

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REINFORCED THERMOPLASTIC PIPE F O R O I L + G A S • Reinforcement for HDPE pipe to meet the performance of traditional steel pipe for oil and gas applications • Temperature performance up to 65˚C with operating pressure up to 1500 psi • Spoolable, lightweight material to simplify transport and installation • Provided material compatibility with HDPE and added reinforcement to meet burst strength requirements • Customized tape thickness to meet specific processing needs • Ensured supply chain reliability with fast delivery and quality control in North America • Flexible, reinforced plastic solution enabled spoolable pipe and reduced weight Polystrand™ Continuous Glass Fiber Reinforced Polyethylene Tape KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION STRONG – DURABLE – LIGHTWEIGHT LEARN MORECopyright © 2021, Avient Corporation.

Glucose Monitoring App Snapshot draft MEDICAL DEVICE OEM C O N T I N U O U S G L U C O S E M O N I T O R I N G S Y S T E M • Adapt to strict processing requirements of a secondary operation put in place to manufacture a new device model • Meet material size and thickness requirements while achieving desired color target • Overcome material unpredictability and sensitivity to heat, light and moisture • Minimize impact of supply chain instability and changes • Offered support for processing under low pressure conditions and at every stage of manufacturing • Performed extensive R&D work to consistently deliver the customer’s color target of a hard-to-achieve light gray • Effectively addressed all material challenges and sensitivities • Provided regular ‘summaries of understanding’ to keep up with changing forecasts and ordering patterns Mevopur™ Pre-color Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION PROCESSING + MATERIAL PERFORMANCE LEARN MORE © 2022, Avient Corporation, All Rights Reserved.

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