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.

Avient Attains ACC Responsible Care® 14001 Global Certification for Environmental, Health, Safety, and Security Excellence Halal Certification Expands for Avient’s Colorants and Additives Produced at Indonesia Site Avient Obtains Halal Certification Expansion to Include its Colorants and Additives Produced at the Tangerang, Indonesia Facility.

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.

• Abrasion resistance • High performance for consumer electronics applications MATERIAL DESCRIPTION HARDNESS COLOR OVERMOLD DENSITY (g/cm3) PROPERTY KEY CHARACTERISTIC Versaflex™ CE 3120-65 65A Natural/ Black PC, ABS, Copolyester 1.15 Soft touch, silky feel and good abrasion performance Silky feeling Versaflex™ CE 3130-70 70A Natural PC, ABS, Copolyester 1.04 Silky feel, long-term life, excellent abrasion resistance, performed UV and stain resistance, chemical resistance Non-blooming Versaflex™ CE 3130-80 80A Natural PC, ABS, Copolyester 1.08 Silky feel, good abrasion performance and UV resistance Non-blooming Versaflex™ CE 3320-70 70A Clear PC, ABS, Copolyester 1.08 Excellent UV resistance, blue jean stain Super UV resistance, blue jean resistance Versaflex™ CE 3320-80 80A Clear PC, ABS, Copolyester 1.15 Excellent UV resistance, blue jean stain Excellent UV resistance Versaflex™ CE 3140-65 65A Natural PC, ABS, Copolyester 1.00 Excellent abrasion resistance, chemical resistance, silky feel 5G transparent Versaflex™ CE 3140-90 90A Natural PC, ABS, Copolyester 1.01 Excellent abrasion resistance, chemical resistance, silky feel 5G transparent VIBRATION DAMPING ELASTOMERS MATERIAL DESCRIPTION HARDNESS COLOR OVERMOLD DENSITY Versaflex™ VDT 4201-35N 35A Natural PP 1.00  Versaflex™ VDT 4202-40B 40A Black PP 1.00 Versaflex™ VDT 5120-40 40A Natural Nylon 1.09 Versaflex™ XP 5130 -65 65A Natural PC/ABS 1.03 Versaflex™ CE 3310-80 80A Clear PC/ABS 1.15 Thermoplastic elastomers that dampen vibrations via energy transfer • Excellent vibration damping performance (reduce noise/shaking) • Adhesion to various plastics PC, PC/ABS, ABS, PP • Colorable and translucent grades available • Effective in thin films HEALTHCARE TPEs Avient has performance-grade materials that are compliant with USP VI, ISO 10993-4 and 10993-5.

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.

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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.

Avient Achieves Reexamination Certificate for Dyneema® Cut-Resistant Yarn Patent Avient Showcases New Sustainable Solutions and Recent Compliance Certifications at ITMA 2023

The achievement of a new GRS certificate marks a significant milestone in the company’s ongoing efforts to reduce its environmental impact while providing high-performance products. The certification is further demonstration that Avient’s offerings meet sustainability requirements under this renowned standard and a compelling recognition of Avient’s approach to corporate social responsibility,” said Say-Eng Lee, vice president and general manager, Color & Additives Asia. The Global Recycled Standard (GRS) 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.

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).