Annual Report | 2024 2 STOCK EXCHANGE LISTING Avient's Common Stock is listed on the New York Stock Exchange, Symbol: AVNT SHAREHOLDER INQUIRIES If you have any questions concerning your account as a shareholder, name or address changes, inquiries regarding stock certificates, or if you need tax information regarding your account, please contact our transfer agent: Equiniti Trust Company, LLC 1110 Centre Pointe Curve, Suite 101 Mendota Heights, MN 55120-4100 Phone: 1-855-598-2615 or 1-651-450-4064 www.shareowneronline.com Additional information about Avient, including current and historic copies of Annual Reports on Form 10-K and other reports filed with the Securities and Exchange Commission, is available online at www.avient.com or free of charge from: Investor Relations Avient Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 1-440-930-1000 ANNUAL MEETING The annual meeting of Avient will be held virtually via live webcast at 9:00 a.m. FINANCIAL INFORMATION Security analysts and representatives of financial institutions are invited to contact: Joe Di Salvo Vice President, Treasurer and Investor Relations Phone: 1-440-930-1921 Email: giuseppe.disalvo@avient.com AUDITORS Ernst & Young LLP North Point Tower II, Suite 1800 1001 Lakeside Ave Cleveland, OH 44114 INTERNET ACCESS Information on Avient’s products and services, news releases, corporate governance, EDGAR filings, Reports on Forms 10-K and 10-Q, etc. as well as an electronic version of this annual report, are available on the Internet at www.avient.com.

TR-215.T001-1001 NR-819.H001-1001 XL-0222-8-1001

GENERAL PURPOSE GLS TPES FOR PACKAGING SOFT TOUCH GRIPS BONDING TO POLAR SUBSTRATES GENERAL PURPOSE GLS TPES FOR PACKAGING SOFT TOUCH GRIPS BONDING TO NON POLAR SUBSTRATES Dynaflex™ G2711 Dynaflex™ G2780 Dynaflex™ G6713 Dynaflex™ G7960 Versalloy™ XL9045 Versaflex™ CL40 Aesthetics Grippy, 43A Low tack, 84A Extra soft, 13A Rubbery, 60A & opaque Matte, 45A & natural Grippy, 40A & water clear Special Characteristics Grippy medical grade PP & PE OM Extra soft General purpose High flow & fast setup Water clear Regulatory FDA, EU & USP VI FDA FDA & EU FDA FDA FDA & EU Overmolding Polypropylene Polypropylene & Polyethylene Polypropylene Polypropylene Polypropylene Polypropylene Versaflex™ CL 2250 Versaflex™ OM 3060 Versaflex™ CE 3120-65 Versaflex™ CE 3620 Versollan™ RU 2205 Aesthetics Grippy, 50A & clear Grippy, 59A & clear Silky feel, 65A Silky feel, 65A Grippy, 65A Special Characteristics Clear overmold Clear overmold Abrasion resistance & high strength Low compression set & high flow Abrasion resistance & high strength Regulatory FDA & USP VI FDA & USP VI UL 94 FDA & ISO 10993-10 — Overmolding Polycarbonate Polycarbonate & ABS Polycarbonate, ABS, Copolyester & Nylon 12 Polycarbonate, ABS, Copolyester & Nylon 12 1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.

DYNAFLEX(TM) G7960-9 NSFG

DYNAFLEX(TM) G7960-1 NSFG (NATURAL)

GEON EXPEMB405L NAT 1001-02 GEON EXPEMB405L NAT 1001-03