In addition, he serves as the primary point of contact for Avient’s shareholders. He joined Avient in 2011 as Assistant Controller and later served as Director, Finance for the company’s Global Color, Additives & Inks business segment. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

In addition, operating income before special items and adjusted EPS are components of various PolyOne annual and long-term employee incentive plans Patterson 1:30 Global Color, Additives and Inks John V. Van Hulle Senior Vice President, President of Global Color, Additives & Inks Michael E.

Avient Corporation Avient Corporation HQ Certificate No: 65536 Certification Date: 29 September 2023 CORPORATE SUPPORT ACTIVITIES, DESIGN, MANUFACTURE AND DISTRIBUTION OF COLOUR AND ADDITIVE CONCENTRATES, THERMOPLASTIC RESINS AND PELLETS, SPECIALTY COMPOUNDS AND COLORANTS. Avient Corporation HQ Design and manufacture of colorants, compounds, and additive concentrates. 65536-95395Certificate No: Page 3 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Avient Corporation - Vonore, TN 245 Avecor Drive Vonore, TN 37885 Manufacture of Colorants and Additives for Plastics 65536-100253Certificate No: Page 52 of 53 ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A.

Artisan™ AR7300 PRE-COLORED FORMULATIONS PROCESSING GUIDE Artisan™ Pre-Colored Thermoplastics Artisan™ AR7300 pre-colored thermoplastics are customized ABS formulations to help manufacturers achieve brilliant and high-gloss metallic effect, excellent chemical resistance, and scratch resistance. Compared with a traditional painting process, injection-molded Artisan materials also offer additional sustainable benefits: energy use and VOC emissions are reduced by eliminating secondary painting or in-mold labeling. Avient makes no warranties or guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.

Avient Resources Avient Resources Overview of the services and capabilities of  Avient's ColorWorks™ Design & Technology Centers.

Avient Resources Avient Resources Overview of the services and capabilities of  Avient's ColorWorks™ Design & Technology Centers.

In addition to the advantages of its performance properties, the Colorant Chromatics Transcend portfolio is supported by Avient's global manufacturing and technical support network, offering local supply and expertise availability to meet customer needs worldwide. About Avient  Avient Announces Quarterly Dividend...

Avient Resources Avient Resources Trilliant™ HC8900 thermoplastics delivered superior chemical resistance after exposure to hospital-grade disinfectants

Microsoft PowerPoint - AVNT Nov 2022 Earnings Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) D E C E M B E R 2 0 2 2 AVIENT: WHO WE ARE 40 23 9 36 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 9,300+ employees 100+ manufacturing plants Key Financial Data 2022PF Sales $3.6 billion 2022PF EBITDA $585 million 2022PF EPS $2.95 100% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 2 Guidance as of November 2, 2022 Webcast WHO WE ARE – VISION, STRATEGY, CULTURE 3 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. OUR VISION At Avient, we create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. 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.

Microsoft PowerPoint - AVNT Nov 2022 Earnings Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) D E C E M B E R 2 0 2 2 AVIENT: WHO WE ARE 40 23 9 36 • U.S. and Canada • Latin America • Europe, Middle East & Africa • Asia 25,000+ CUSTOMERS Headquartered in Avon Lake, OH (Cleveland) 9,300+ employees 100+ manufacturing plants Key Financial Data $3.6 billion2022PF Sales $585 million2022PF EBITDA $2.952022PF EPS 100% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 2 Guidance as of November 2, 2022 Webcast WHO WE ARE – VISION, STRATEGY, CULTURE 3 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. OUR VISION At Avient, we create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. 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.