Terms and Conditions (December 1, 2024)

Outstanding Equity Awards at 2017 Fiscal Year-End Option Exercise Price Option Expiration Date Market Value of Shares or Units of Stock That Have Not Vested (h) Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights that Have Not Vested (j) - - 25,039 (1) 1,089,197 - - - 35,796 (2) 1,557,126 - - - 39,630 (3) 1,723,905 - - - - 52,524 (6) 2,284,794 - - - 52,524 (6) 2,284,794 30,500 (7) 14.81 2/16/2021 - - 48,800 (8) 14.61 2/14/2022 - - 30,700 (9) 23.08 2/15/2023 - - 20,500 (10) 35.07 2/11/2024 - - 44,467 (11) 22,233 (11) 38.27 2/4/2025 - - 35,067 (12) 70,133 (12) 24.98 2/10/2026 - - 118,200 (13) 34.10 2/15/2027 - - - - 6,996 (1) 304,326 - - - 8,553 (2) 372,056 - - - 8,272 (3) 359,832 - 17,400 (10) 35.07 2/11/2024 - - 12,467 (11) 6,233 (11) 38.27 2/4/2025 - - 8,384 (12) 16,766 (12) 24.98 2/10/2026 - - 24,650 (13) 34.10 2/15/2027 - - - - 2,718 (1) 118,233 - - - 3,558 (2) 154,773 - 3,909 (3) 170,042 - - 10,073 (4) 438,176 - 2,600 (8) 14.61 2/14/2022 - - 2,867 (9) 23.08 2/15/2023 - - 3,000 (10) 35.07 2/11/2024 - - 4,867 (11) 2,433 (11) 38.27 2/4/2025 - - 3,467 (12) 6,933 (12) 24.98 2/10/2026 - - 11,600 (13) 34.10 2/15/2027 - - - - 3,447 (1) 149,945 - - - 4,382 (2) 190,617 - - - 4,467 (3) 194,315 7,800 (10) 35.07 2/11/2024 - - 6,134 (11) 3,066 (11) 38.27 2/4/2025 - - 4,300 (12) 8,600 (12) 24.98 2/10/2026 - - 13,250 (13) 34.10 2/15/2027 - - - - 3,554 (1) 154,599 - - - 4,639 (2) 201,797 - - - 4,620 (3) 200,970 - 23,300 (8) 14.61 2/14/2022 - - 13,700 (9) 23.08 2/15/2023 - - 8,700 (10) 35.07 2/11/2024 - - 6,200 (11) 3,100 (11) 38.27 2/4/2025 - - 4,517 (12) 9,033 (12) 24.98 2/10/2026 - - 13,750 (13) 34.10 2/15/2027 - - - - 3,751 (5) 163,169 - - - 4,382 (2) 190,617 - - - 4,213 (3) 183,266 6,600 (14) 3,300 (14) 40.19 5/15/2025 - - 4,300 (12) 8,600 (12) 24.98 2/10/2026 - - 12,450 (13) 34.10 2/15/2027 - - - - 4,177 (1) 181,700 - - - 5,102 (2) 221,937 - - - 5,025 (3) 218,588 - 10,400 (10) 35.07 2/11/2024 - - 7,467 (11) 3,733 (11) 38.27 2/4/2025 - - 5,000 (12) 10,000 (12) 24.98 2/10/2026 - - 14,900 (13) 34.10 2/15/2027 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Number of Shares or Units of Stock That Have Not Vested Number of Securities Underlying Unexercised Options (#) Unexercisable Number of Securities Underlying Unexercised Options (#) Exercisable - - - - - Option Awards - - - - Equity Incentive Plan Awards: Number of Unearned Shares, Units or Other Rights that Have Not Vested (i) - - - - - - - - - - - - - - - - - - - - - - - - - - - - Stock Awards B.C. Patterson has remained in continuous employment with the Company, then the remaining 50,000 performance shares shall become non-forfeitable and fully vested on May 15, 2024.

PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA $0.42 $0.47 2022 PF 2023 - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 16 $112 $500 $0.47 Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Sales Adjusted EBITDA Adjusted EPS 17 (in millions) (in millions) Guidance: Free Cash Flow $180 $180 Prior Guidance Guidance FREE CASH FLOW & INCREASED DIVIDEND 13th Consecutive Dividend Increase 0.16 0.26 0.42 0.58 0.79 0.85 0.99 1.03 2011 2013 2015 2017 2019 2021 2023 2024 S U S TAI NABI L I T Y DAY RE CAP SUSTAINABILITY AS A GROWTH DRIVERLONG-TERM REVENUE GROWTH DRIVERS 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other (GDP growth) 0–2% Avient 6% SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) Sources: McKinsey, Bloomberg, Grand View Research SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 21 • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ ADJUSTED EBITDA MARGIN EXPANSION 22 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 23 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,130 and estimated run-rate CAPEX of $110M. 26 3.5 1.8 2.7 3.0 3.4 3.7 2.8 3.7 4.6 5.0 6.9 7.0 8.6 11.1 Av ie nt PP PM FM C N C FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Leverage PolyOne’s global reach Phase 1 Phase 2 Phase 3 18-20% operating margins Invest in commercial resources I N V E S T - T O - G R O W P R O O F O F P E R F O R M A N C E PolyOne Corporation 24 Commercial Resources Operating Income ($ in millions) Operating Margins 256 309 $36 $100 Established Acquisitions (> 7 years) + 20% + 165% + 1000 bps CLARIANT MASTERBATCH ACQUISITION DRIVES NEXT LEVEL SPECIALTY TRANSFORMATION ACCELER ATING GR OWTH WITH SUSTAINABLE SOLUTIONS T R A N S F O R M A T I O N H E A D L I N E S PolyOne Corporation 26 F I T W I T H F O U R P I L L A R S T R A T E G Y PolyOne Corporation 27 Specialization • Innovation-led organization with heavy emphasis on R&D • World-class expertise in color formulation • Strong presence in specialty end markets including Consumer, Packaging and Healthcare Globalization • Diverse geographic portfolio with an established presence in every major region • Expands PolyOne’s ability to serve customers in key growth areas including India, China and Southeast Asia Operational • Extensive manufacturing footprint with 46 facilities • Organizational focus on optimizing supply chain to better serve • Color design expertise Commercial • Value-focused salesforce with vast experience marketing and commercializing specialty technologies • Diverse customer portfolio with established OEM’s People Experienced and talented associates with a winning mentality E N D M A R K E T T R A N S F O R M A T I O N PolyOne Corporation 28 18% 50% 22% High Growth End Markets Percentage of Total Revenue 38% E N D M A R K E T T R A N S F O R M A T I O N PolyOne Corporation 29 38% Wire & Electrical & Electronic 18% Building & Wire & Electrical & Electronic C O M P L E M E N T A R Y G E O G R A P H I C P R E S E N C E PolyOne Corporation 30 38% Europe 33% 22% Europe & Middle East 48% 23% Color & Engineered Clariant Masterbatch Net Sales by Geographic Region Europe & Middle East 39% 21% Pro Forma Color & Engineered Materials U N I F I E D F O C U S O N S U S T A I N A B I L I T Y PolyOne Corporation 31 2006 - 2013 2013 – 2019 PEO PLE PRO D U C TS PLA N ET PER FO R M A N C E Clariant Masterbatch • Building mini-recycling plants to facilitate customer projects on design for recycling - CycleWorks • Uses packaging additives & colorants to improve recyclability and enhance automated sorting • Manufactures oxygen scavengers to extend shelf-life of perishable items and reduce material requirements • Combines UV-blocking additive colorants & other barriers to prevent spoilage and waste • Offers spin-dyeing solutions that use significantly less water than traditional methods, allowing for sustainable coloration of textiles • Produces infrared absorbing additives that reduce energy requirements for bottle manufacturing ($ in millions) (Continuing Operations) Clariant Color & Additive Masterbatch Synergies New 2019 Total Sales $2,863 $1,150 $4,013 2019 Adjusted EBITDA $309 $130 $60 $499 % Margin 10.8% 11.3% 12.4% 2019 CapEx $68 $85 % Sales 2.4% 2.1% 2019 Free Cash Flow $161 $250 2019 Adjusted EPS $1.69 $2.22 2019 PF Adjusted EPS $1.69 $2.54 P O L Y O N E + C L A R I A N T M A S T E R B A T C H B U S I N E S S PolyOne Corporation 32 (1) Excludes step-up of depreciation & amortization related to purchase accounting of transaction (1) $0.85/share O V E R 8 5 % O F A D J U S T E D E B I T D A F R O M S P E C I A L T Y PolyOne Corporation 33 46% 66% 0% 40% 60% 80% 100% 2005 2010 2015 2019E PF % o f A d ju st e d E B IT D A * JV's Performance Products & Solutions Distribution Specialty 87% * Adjusted EBITDA is EBITDA excluding corporate costs and special items ** 2019E Pro Forma for PP&S Divestiture and Clariant Masterbatch business acquisition with synergies Specialty EBITDA $14M $117M $273M $500M ** T R A N S A C T I O N O V E R V I E W • Expected mid-2020, subject to regulatory approvals and customary closing conditions Closing Conditions / Timing • Committed financing in place • Permanent financing to be combination of available cash on-hand, new debt and equity component to limit leverage • Equity issuance of $500MM • Target net leverage below 3.5x, 3.1x synergized PolyOne Corporation 36 • $1.45 B net purchase price • Represents 11.1x adjusted EBITDA (excluding synergies), 7.6x adjusted EBITDA (including synergies) • Pre-tax synergies of $60MM expected to be fully realized by the end of 2023 • Synergies realized from sourcing, operational, technology / commercial, and general administrative Transaction Value Synergies Estimated Synergy Breakdown $60MM • Expect EBITDA synergies of $60MM – Proven integration expertise with a decade of acquisition experience – Administrative synergies reflect reduction of duplicative internal and third-party costs • Run rate synergies of $20MM by the end of Year 1 with $60MM achieved by the end of Year 3 • Significant additional opportunity for geographical expansion – Clariant Masterbatch business has complementary regional presence in key growth areas including India & Southeast Asia • Opportunity to accelerate growth with a combined portfolio of innovative solutions aligned with sustainability megatrends Sourcing 40% Operational Administrative PolyOne Corporation 37 S I G N I F I C A N T S Y N E R G Y O P P O R T U N I T I E S $450 $600 $624 $743 2019 2020 2021 2022 2023 2024 2025 2026 A T T R A C T I V E F I N A N C I N G S T R U C T U R E Attractive Debt Maturity Profile Existing Revolver Existing Senior Notes Existing Term Loan B New Debt Summary Terms on New Debt • $465 million of cash from the balance sheet expected to fund a portion of the purchase price • Bridge financing for remainder fully committed from Citi, Morgan Stanley and Wells Fargo • Permanent financing expected to include a combination of long-term debt and new equity • The timing of the permanent financing is subject to a number of factors, including, but not limited to, market conditions • PolyOne is committed to preserving a strong balance sheet – Target net leverage at close below 3.5x, excluding synergies • Pro forma capital structure positions PolyOne with flexibility to pursue continued growth strategy • New financing expected to have same or better covenant package than existing capital structure • Capital structure would be “covenant lite” Capital Policy • Transaction in line with PolyOne’s disciplined capital allocation policy • Existing PolyOne dividend policy to be maintained • Focus on deleveraging in the near term 2028+ PolyOne Corporation 38 PolyOne Corporation 37 $0.16 $0.20 $0.24 $0.32 $0.40 $0.48 $0.54 $0.70 $0.78 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 Cumulative Share Repurchases (In millions) $0 $150 $300 $450 $600 $750 $900 2011 2012 2013 2014 2015 2016 2017 2018 2019 $917M R E T U R N I N G C A S H T O S H A R E H O L D E R S O V E R $ 1 . 2 B I L L I O N S I N C E 2 0 1 1 PolyOne Corporation Increasing Annual Dividend 38 $0.81 PolyOne Corporation 39 W H Y I N V E S T I N P O L Y O N E ?

Chamber of Commerce; BEAD refers to Broadband Equity, Access, and Deployment Program17 • Fiscal Year 2024 U.S.

Myyntiehdot (1. huhtikuuta 2024)

Dátum: 2024. április 01.

Obchodní podmínky (1. prosinec 2024)

Terms and Conditions (December 1, 2024)

Option Exercise Price Option Expiration Date Market Value of Shares or Units of Stock That Have Not Vested (h) Equity Incentive Plan Awards: Market or Payout Value of Unearned Shares, Units or Other Rights that Have Not Vested (j) - - 14,650 (1) 465,284 - - - 25,724 (2) 816,994 - - - 8,384 (3) 266,276 - - - 24,306 (4) 771,959 - - - - 25,724 (9) 816,994 - - - 50,991 (10) 1,619,474 - - - 50,991 (10) 1,619,474 30,500 (12) 14.81 2/16/2021 - - 48,800 (13) 14.61 2/14/2022 - - 20,467 (14) 10,233 (14) 23.08 2/15/2023 - - 6,834 (15) 6,833 (15) 6,833 (15) 35.07 2/11/2024 - - 66,700 (16) 38.27 2/4/2025 - - - - 20,490 (5) 650,762 - - - 7,157 (3) 227,306 - - - 6,788 (4) 215,587 - 5,800 (15) 5,800 (15) 5,800 (15) 35.07 2/11/2024 - - 18,700 (16) 38.27 2/4/2025 - - - - 64,981 (1) 2,063,797 - - - 102,877 (6) 3,267,374 - - - 37,201 (3) 1,181,504 - 91,334 (14) 45,666 (14) 23.08 2/15/2023 - - 30,334 (15) 30,333 (15) 30,333 (15) 35.07 2/11/2024 - - - - 6,504 (1) 206,567 - - - 4,294 (3) 136,377 - - - 25,551 (7) 811,500 - - - 4,052 (4) 128,692 - - - - 25,551 (11) 811,500 9,134 (14) 4,566 (14) 23.08 2/15/2023 - - 3,467 (15) 3,467 (15) 3,466 (15) 35.07 2/11/2024 - - - 11,200 (16) 38.27 2/4/2025 - - - - 6,504 (1) 206,567 - - - 3,579 (3) 113,669 - - - 3,446 (4) 109,445 - 23,300 (13) 14.61 2/14/2022 - - 9,134 (14) 4,566 (14) 23.08 2/15/2023 - - 2,900 (15) 2,900 (15) 2,900 (15) 35.07 2/11/2024 - - 9,300 (16) 38.27 2/4/2025 - - - - 2,769 (8) 87,943 - - - 2,567 (8) 81,528 - - - 1,316 (8) 41,796 - - - 261 (8) 8,289 -- -- -J.A. Patterson has remained in continuous employment with the Company, then the remaining 50,000 performance shares shall become non-forfeitable and fully vested on May 15, 2024.