FX) 2022 GROWTH PROJECTIONS (TOTAL COMPANY) 19 $3.05 $3.50 2021 2022E Full Year – Adjusted EPS + 15% (+ 17% excluding FX) $0.89 $0.95 2021 2022E Q1 – Adjusted EPS + 7% (+ 10% excluding FX) ($ millions) Q1 Full Year Q1 Full Year 2021 - Actual 1,162$ 4,819$ 123$ 429$ Sustainable Solutions 27 110 12 44 Healthcare 15 66 4 13 Composites (excl.Outdoor High Performance) 11 29 5 13 Outdoor High Performance Applications (7) (20) (4) (10) Growth in Asia / LATAM 10 51 3 11 Other 57 115 9 12 Sub-total 1,275$ 5,170$ 152$ 512$ Wage Inflation and Overtime (12) (18) Other Supply Chain Costs (4) (7) FX Impact (25) (70) (4) (8) Synergies 4 15 Travel, Other Employee Costs (1) (4) 2022 - Estimated 1,250$ 5,100$ 135$ 490$ Sales Adjusted Operating Income 2022 SALES AND OI – Q1 AND FULL YEAR (TOTAL COMPANY) 20 ($ millions) 2021 2022E Cash Flow from Operating Activities 234$ 385$ Less: Run-Rate CapEx (86) (90) CapEx for Clariant Integration (15) (20) CapEx for IT System Upgrade - (25) Total CapEx (101) (135) Free Cash Flow 133$ 250$ Adjusted EBITDA 581$ 635$ Net Debt / Adjusted EBITDA 2.2x 1.8x 21 CASH FLOW / LEVERAGE 22 • Record results – highest level of sales ($4.8B) and earnings ($3.05 adjusted EPS) in company history • Successful Clariant Color integration – net debt to adjusted EBITDA reduced to 2.2x, one-year ahead of schedule • Recognized as one of America’s Most Responsible Companies by Newsweek • Earned 3rd consecutive Great Place to Work certification 2021 HIGHLIGHTS 23 • 15% adjusted EPS growth to $3.50, led by growth in sustainable solutions and increased synergy realization • Continued strong synergy capture from the Clariant Color integration: $75M anticipated run-rate synergies by the end of 2022 • Adjusted EBITDA of $635M represents 9% growth above 2021 – 11% excluding the impact of foreign currencies • Deleveraged to 1.8x net debt to adjusted EBITDA by the end of 2022 2022 SUMMARY PEER COMPARISONS 25 As a specialty formulator, we don’t require significant capital investment, as compared to the base resin raw material suppliers we purchase from.

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.

Latin America Manufacturing Certificate Bulletin (Portuguese) Latin America Manufacturing Certificate Bulletin (Spanish) Manufacturing certificate overview for plants in Latin America (Spanish language version)

Latin America Manufacturing Certificate Bulletin (Portuguese) Latin America Manufacturing Certificate Bulletin (Spanish) Manufacturing certificate overview for plants in Latin America (Spanish language version)

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.

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 to maintain certification under the American Chemistry Council’s (ACC) Responsible Care® 14001 management system and to adhere to the ACC’s Product Safety Code, which exceeds basic legal requirements. Through this data, we create safety data sheets and customer certification statements for intended use and product safety improvements.

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.

• Abrasion resistance • High performance for consumer electronics applications MATERIAL DESCRIPTION HARDNESS COLOR OVERMOLD SUBSTRATE 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 resistance Super UV resistance, blue jean resistance Versaflex™ CE 3320-80 80A Clear PC, ABS, Copolyester 1.15 Excellent UV resistance, blue jean stain resistance 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 SUBSTRATE DENSITY (g/cm3) 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.

Latin America Manufacturing Certificate Bulletin (Portuguese) Latin America Manufacturing Certificate Bulletin (Spanish) Manufacturing certificate overview for plants in Latin America (Spanish language version)