Our key development opportunities include nomination-based leadership programs (such as NextGen, Emerging Leaders and Elevate), foundational leadership training for all current or aspiring people managers, called Core Leadership, and LSS training at a variety of levels, where individuals can be certified for job-specific LSS programs, up through Master Black Belt certification. We are proud to share that our associates feel we are a Great Place to Work® and, in 2023, we received our fifth certification. The “People” metric considered both (1) the results of our 2023 Great Places to Work® employee engagement survey (and whether the results resulted in certification by Great Places to Work and an improvement over the prior year’s scores), and (2) the percentage of employees who participated in a safety activity during the year.

In deciding on a review or audit, the data exporter may take into account relevant certifications held by the data importer. In deciding on a review or audit, the data exporter may take into account relevant certifications held by the data importer.

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, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

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, a Certificate of Compliance, or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

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, a Certificate of Compliance or a Product Specification Sheet, if any such document exists, and other specifications signed by Seller (“Specifications”).

Pursuant to the policy, any nominee for election as a Director of the Board who receives a greater number of votes “withheld” from his or her election than votes “for” his or her election in an election of Directors that is not a contested election is expected to tender his or her resignation as a Director to the Board promptly following the certification of the election results. COMPENSATION DISCUSSION AND ANALYSIS 44 PROXY STATEMENT 2022 | Annual Meeting of Shareholders 2021 Company performance highlights include: • Full-year 2021 EPS from continuing operations was $2.51, compared to $1.46 in 2020, an increase of 72%; • Record sales growth of 27% over 2020 to $4.8 billion; • Increased adjusted EPS 58% from $1.93 (pro forma for the Clariant Color acquisition) to $3.05(1) driven by demand for sustainable solutions, healthcare applications and composites technologies; • Increased our dividend on an annualized basis by 12% to $0.95; the 11th consecutive year of annual increase; • Our 0.55 injury incident rate (per 100 full-time workers per year) is world-class in our industry; • Certified once again as an ACC Responsible Care® organization for outstanding environmental, health and safety performance; • Continued our journey of improving our culture: received our 3rd consecutive certification as a Great Place to Work® by the Great Place to Work Institute; joined the United Nations Global Compact; and recognized as one of America's Most Responsible Companies by Newsweek; • The SEM business delivered record operating income of $132 million, up 40% from 2020, driven by high demand for our composites and other specialty solutions serving the consumer and healthcare end markets; • The CAI business grew revenue 18% and operating income 34%. With respect to the Clariant Color Integration Objectives described above, the Committee determined all objectives had been met or exceeded as we prioritized safety training and education and retained ACC Responsible Care certification, grew revenue and cross-selling leads, successfully engaged employees, achieving our third consecutive certification as a Great Place to Work® by the Great Place to Work Institute, and achieved $54 million of cost synergies.

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.

We are proud that our employees feel we are a Great Place to Work®, and in 2024, we received our sixth certification. Pursuant to the policy, any nominee for election as a Director of the Board who receives a greater number of votes “withheld” from his or her election than votes “for” his or her election in an election of Directors that is not a contested election is expected to tender his or her resignation as a Director to the Board promptly following the certification of the election results. The employee engagement metric considered the results of our 2024 Great Places to Work® employee engagement survey (and whether the results resulted in certification by Great Places to Work and an improvement over the prior year’s scores).

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