Homepage // News Center // Avient Expands Portfolio of Metallization Grades with High-Impact Polypropylene-Based Formulations for Luxury Applications To access Avient’s news library online, please visit www.avient.com/news. Investor News

Together, these elements can inform, engage, attract, and ultimately drive customers to say yes to new products. Automaker Finds Savings, Appeal in New Colorant Plus Additive

Homepage // News Center // Avient Launches New TPEs with Post-Consumer Recycled Content from Automotive Windshields To access Avient’s news library online, please visit www.avient.com/news. Investor News

Homepage // News Center // Avient Introduces Durable Orange Nylon Colorants for High Voltage Electrical Vehicle (EV) Connectors To access Avient’s news library online, please visit www.avient.com/news. Investor News

Homepage // News Center // Avient Showcases Connected Wire and Cable Solutions at Wire China 2020 NOTE: On July 1, 2020, PolyOne and Clariant Masterbatches 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. To access Avient’s news library online, please visit www.avient.com/news.

Homepage // News Center // Avient Features TPEs for Food Contact and Sustainability at Cekexpo 2020 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. To access Avient’s news library online, please visit www.avient.com/news.

Certificate Avient Corporation Certificate Of Conformance This is to certify that the Quality Management System of: Avient Corporation 33587 Walker Road Avon Lake OH 44012 has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: Design and manufacture of colour and additive concentrates, thermoplastic resins and specialty compounds Certificate No: 65799 Certification Date: 01 OCT 2020 Effective Date: 25 SEP 2023 Expiration Date 30 SEP 2026 Revision Date: 06 DEC 2024 Dominic Townsend, President Page 1 of 4 ISO 9001:2015 Certificate Of Conformance ANNEX Certificate No.: 65799 Avient Corporation At the below facilities Avient Corporation - Avon Lake, OH Management of QMS, Design and manufacture of colour and additive concentrates, thermoplastic resins and specialty compounds 33587 Walker Road Avon Lake OH 44012 United States Avient (Argentina) SA Administration, Site management, Manufacture, Laboratory (QC and Colormatching), Procurement, Maintenance, Infrastructure, Warehouse and Transport, Sales Av. Administration, Site management, Manufacture, Laboratory, Procurement, 27 Avenida 34–11, Zona 12 1012 Parque Global Guatemala WA-6 Renaissance Industrial & Warehousing Complex, Vashere Maharashtra 400607 India Survey No. 344 / 1–3 Sakarda Bhadarwa Road Taluka Savli Vadodara District 39178 India Shed No 18–22, GIDC Estate Kalol Gujarat 389330 India Page 2 of 4 P.T. Administration, Manufacture, Laboratory, Warehouse Plasticos 28 Santa Clara Coatitla Ecatepec de Morelos Estado de México 55540 Mexico Avient Corporation Administration, Site management (Facitilities, EHS), Manufacture, Laboratory (QC Transport, SCM (DIP, Logistics, CSD, Call-off), QC, Product Stewardship 4 Rothwell Avenue, Albany Industrial Estate Albany 0632 New Zealand 1–A1, Sector 20, Korangi Industrial Area 74900 Karachi Pakistan Avient Pakistan (Private) Ltd.

Homepage // News Center // Avient Launches New reSound™ REC Thermoplastic Elastomers with Recycled Content for PC/ABS Overmolding Avient Launches New reSound™ REC Thermoplastic Elastomers with Recycled Content for PC/ABS Overmolding To access Avient’s news library online, please visit https://www.avient.com/news-events.

Homepage // News Center // Avient Introduces CESA™ Fiber Additives for Heat Preservation to Help Meet Fashion Design’s Functional Needs To access Avient's news library online, please visit www.avient.com/news Investor News

Enhanced user experience drives increased market share, over $400,000 in new sales revenue The new premium mouse hit store shelves amid positive reviews, generating brisk sales and enabling the manufacturer to improve its share of market. The OEM’s new product, featuring Avient’s contribution, increased market share and generated more than $400,000 in sales during the first year of production.