Certificate of Analysis (COA) - labeled as "Material"

Per Carlsson, Manufacturing and Operations Avient Corporation 71 80 2022 2030 Medical Plastics Market Size PRESERVE – TAKEAWAY Protecting Human Life and Enabling Connectivity Drives Growth Projections Examples Covered 56% Other Applications 44% 2022 $525M (in $ Bi lli s) 8% CAGR 34% CAGR 5G Infrastructure Market Size 12 92 10 70 80 2023 2024 2025 2026 2027 2028 2029 2030 (in $ Bi lli s) Source: Grand View Research Source: Global Data Summary Senior Vice President and Chief Financial Officer Avient Corporation 72 OUR SUSTAINABILITY REPORT Avient Corporation 73 Avient Corporation 74 2030 SUSTAINABILITY GOALS Avient Corporation 75 PERFORMANCE AND RECOGNITION 1 2 5 ESG Ratings Performance ESG Awards and Certifications top 13% 94th percentile Avient Corporation 76 SUSTAINABILITY INNOVATION AWARDS Ultra-Low Carbon Footprint TPE Innovation Award, Finalist: PCR Colorants + Additives Sustainable Packaging Innovation, Finalist: U.S.

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 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 PolyOne, 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.polyone.com or free of charge from: Investor Affairs Relations PolyOne Corporation 33587 Walker Road Avon Lake, Ohio 44012 Phone: 440-930-1000 ANNUAL MEETING The annual meeting of shareholders of PolyOne will be held May 14, 2020 at 9:00 a.m. at PolyOne’s Corporate headquarters, 33587 Walker Road, Avon Lake, Ohio.

Siete tenuti a conoscere e a seguire le linee guida aziendali quando utilizzate social media/network, per uso personale o aziendale e quando tale utilizzo riguarda informazioni o comunicazioni legate a Avient o fa riferimento al vostro lavoro o alle vostre responsabilità all’interno dell’azienda. 16 Sicurezza informatica, licenze software e copyright Come per altre forme di informazioni essenziali per le operazioni di Avient, dovete proteggere attentamente le informazioni contenute nei computer o registrate su diversi dispositivi di archiviazione da copia, modifica, divulgazione o distruzione accidentali o non autorizzate.

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis, (bunseki shomei sho)a Certificate of Compliance (tekigo-sei shomei sho), or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

Complete required compliance and ethics training and certifications.

Complete required compliance and ethics training and certifications.

Find out what the government requires manufacturers to provide in terms of certification and testing. The timetable for testing, certification and enforcement as outlined on the CPSC web site (see link in adjacent column), generally requires compliance in advance of testing and certification. Global ISO Certificate Library

Cotrep certification: detection and sorting of CESA IR PP 94000725 (French language version) Cotrep certification: detection and sorting of CESA IR PE 94000816 (French language version) Cotrep certification: detection and sorting of CESA IR PE 94000817 (French language version)

At this show, Avient will feature colorants and additives to enhance product performance and sustainability and highlight industry certifications and collaborations, including: Avient Sustainable Fiber Additives: include bluesign® SYSYEM PARTNER colorants and recycled fiber solutions with Global Recycle Standard (GRS) certifications, and biodegradable fiber solutions with EN13432 certifications. GRS 4.0 Standard Certification: is an international, voluntary, full-product standard that sets requirements for third-party certification of recycled content, chain of custody, social and environmental practices, and chemical restrictions.