Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share and Free Cash Flow to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator 5. PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.47 2022 PF 2023 Adjusted EPS (in millions) - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 16 $112 $500 Q4 FY $0.47 $2.30 Q4 FY Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Q4 FY 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 18 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% 20 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 18 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% 16.0% 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 Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of December 29, 2023 Note: Avient reflects 2023 estimated revenue of $3,130 and estimated run-rate CAPEX of $110M. 26 3.5 1.8 2.7 3.1 3.3 3.7 3.0 3.7 4.7 4.8 6.8 6.8 8.7 11.1 Av ie nt KW R FU L PP G AV Y R PM FM C H U N C E EC L H XL AS H EM N SC L FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of December 29, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Coupa is free for all suppliers to join, which is why there is already robust support for Coupa amongst many of the suppliers Avient currently use today. The benefit of Coupa Supplier Portal is that is a free website that everyone can use and where you can create your own e-invoices based on each purchase order. You can register for free.

COLORANTS AND ADDITIVES FOR WIRE & CABLE PRODUCT SELECTION GUIDE ONCOLOR™ COLORANTS FOR WIRE & CABLE APPLICATION DESCRIPTION PVC General Purpose Cable • Optimal incorporation in PVC formulations • Non ortho-phthalate range available PVC Automotive Cable • Optimized colors for T2 and T3 automotive applications • Non ortho-phthalate range available Unfilled PE, XLPE, PP Cable • Specific color range for unfilled polyolefins • Compatibility with cross-linkable systems • Special range to minimize shrinkage or for thin skin applications Filled Polyolefins, Non-Halogenated Flame Retardant PE Cable • Full range of colors, halogen-free or low amounts of halogens • Designed for incorporation into various non-halogenated flame retardant formulations PE Visico/Ambicat™ Crosslinked Polyethylene1 • Full range of colors for PE Visico/Ambicat™ cross-linked polyethylene • Specifically designed and tested to ensure compatibility with this cross-linking method Thermoset Rubber Cable • Colors designed for use with thermoset rubber • Fully compatible with vulcanization process Unfilled TPU Cable • Color range for unfilled polyester or polyether TPU • Provides good opacity at low addition levels Flame Retardant TPU Cable • Color range for filled/non-halogenated flame retardant TPU • Provides good color strength TPE Cable • Color range designed to enhance performance of various TPE brands • High temperature range available PA Cable • Different color ranges available depending on the polyamide type and the application PBT Cable • PBT color range mostly used in optical fiber, loose tube or tight buffered cables • Selection of pigments to prevent migration of color in gel-filled materials 1 Visico/Ambicat™ Crosslinked Polyethylene is a trademark of Borealis OnColor™ Colorants for wire & cable offer a comprehensive range of color series, covering the diverse specifications demanded by the cable industry. OnColor Colorants for wire & cable are heavy metal free and compliant with the RoHS Directive 2015/863/CE. Full range of ADCA or ADCA free solutions.

PRODUCT SELECTION GUIDE WIRE & CABLE SOLUTIONS Specialty Engineered Materials High performance insulation, jacketing, and cross-web formulations for the wire and cable industry Syncure™ XLPE Cross-linkable Polyethylene Formulations • Ambient curing • Flame performance • Resistant to heat, oil, creep, & abrasion • Low temperature properties • Low capital investment • High extrusion speeds • DBDPE-free grades available • UL/CSA bulletins Maxxam™ FR Flame Retardant Polyolefin Formulations • FEP alternative • Fire performance • UL 444 & plenum yellow card compliance • Low dielectric • High extrusion speeds • Thin wall extrudability Maxxam™ SY Foamable Flame Retardant Formulations • Low dielectric • Uniform cell structure • Crush & heat resistance • Ease of chemical foaming ECCOH™ Low Smoke and Fume Non-Halogen Formulations • Improved fire safety • Low smoke, fume, non-halogen (LSFOH) formulations • Chemical resistance ECCOH™ XL Cross-Linkable Solutions • Non-halogen, low smoke, toxicity, & corrosiveness • Excellent mechanical & electrical properties • Easily processed • Operating temperature of 90°C • Moisture cure technology Synprene™ Flame Retardant Thermoplastic Elastomers • Flexibility • Flame performance • Low temperature brittleness (LTB) resistance • Chemical resistance • Easily colored FireCon™ CPE Insulation Jacketing Formulations • Resistance to harsh environments • Low temperature performance • Flame performance • High extrusion speeds • Sunlight resistance FEATURES SPECIFICATION ECCOH™ XL 8148 Non-halogen, low smoke, toxicity, & corrosiveness EN50618 Syncure™ S100FH Horizontal flame UL 44 Syncure™ S100FH-XUV Horizontal flame, UV resistant UL 44 Syncure™ S100FH-UV Horizontal flame, FV-1 flame, UV resistant UL 44, UL 4703 Syncure™ S100FV VW-1 flame UL 44 Syncure™ S100FV-UV VW1, UV resistant UL 44 Syncure™ S112NA Non-flame retardant CSA 22.2 Syncure™ S120NA Non-flame retardant NSF 61 Syncure™ S200FH Horizontal flame, DBDPE-free UL 44 Syncure™ S200FV VW-1, DBDPE-free UL 44 INSULATION FOR POWER CABLE SYSTEMS Low Voltage Power Cables • Flame performance • Resistance to heat, oil, creep, & abrasion • Low temperature performance • Low capital investment • High extrusion speeds INSULATION & CROSS-WEBS FOR DATA CABLE SYSTEMS Category Cables • FEP alternative • Flame performance • Low dielectric constant • High extrusion speeds & thin wall capability • Chemical resistance • Low temperature performance • Flexibility FEATURES SPECIFICATION Maxxam™ FR 0521-48 R1 Low smoke & fume, non-halogen UL 444 Maxxam™ FR 0587-21 R3 Halogenated to plenum performance UL 444 Optical Fiber Cables • Resistance to harsh environments, chemicals, & sunlight • Low temperature brittleness (LTB) resistance • Low smoke & toxicity • Flexibility • High extrusion speeds FEATURES SPECIFICATION ECCOH™ 6649 UV Low DD Low smoke & fume, non-halogen Meets customer-specific flame requirements Coaxial Cables • Flexibility • High extrusion speeds • Low dielectric constant • Uniform cell structure • Crush & heat resistance FEATURES SPECIFICATION Maxxam™ SY 89-22-7 Foamable Meets customer-specific flame requirements JACKETING FOR POWER & DATA CABLE SYSTEMS Low & Medium Voltage Jacketing • Resistance to harsh environments, chemicals, & UV degradation • Low temperature brittleness (LTB) resistance • Low smoke & toxicity • Flexibility • High extrusion speeds • Easily colored FEATURES SUBMARKETS & USES FireCon™ CPE 30-33 RoHS Black Flame retardant, flexible Building & construction, industrial, nuclear FireCon™ CPE 37-36 RoHS Black Flame retardant, flexible Building & construction, industrial, nuclear FireCon™ CPE 30-20 RoHS Natural Flame retardant, flexible Building & construction, industrial, nuclear ECCOH™ 5549 UV Low smoke & fume, non-halogen, flame retardant Building & construction, industrial ECCOH™ 6649 UV Low DD Low smoke & fume, non-halogen, flame retardant Optical fiber, ducts ECCOH™ 5981 UV Low smoke & fume, non-halogen, flame retardant Industrial, Teck 90 wire Synprene™ RT5180 Flame retardant, LTB resistance Building & construction, industrial Synprene™ RT5180UV Flame retardant, LTB resistance Building & construction, industrial Synprene™ RT3870M Flame retardant, LTB resistance Building & construction, industrial 1.844.4AVIENT www.avient.com Copyright © 2023, Avient Corporation.

Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share and Free Cash Flow, to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. GUIDANCE (TOTAL COMPANY PRO FORMA) 7 $100 $107 Guidance Pro Forma $0.33 $0.42 Guidance Pro Forma Adjusted EBITDA Adjusted EPS (in millions) $200 $293 Guidance Actual Free Cash Flow (in millions) FY 2022 VS. GUIDANCE DEBT / LEVERAGE REDUCTION • Completed sale of Distribution and paid down $750M of debt in November • Strong free cash flow in fourth quarter reduced leverage and enabled paydown of additional $200M of debt • Fixed/Floating Debt Ratio 63/37 • Proven track record of deleveraging following acquisitions through consistent free cash flow generation $725 $725 $725 $575 $500 $400 $600 $525 $425 $650 $650 $650 $600 $2.40B $2.20B 2030 Notes 2029 Term Loan 2026 Term Loan 2025 Notes After Distribution Divestiture Year-End 8 Year-End Leverage 3.8x 3.1x 2.9x 2023 Notes After Avient Protective Materials Acquisition $3.15B 2022 TRANSFORMATIONAL PORTFOLIO ENHANCEMENTS 9 EBITDA margins expanded from 12% to 16% Diversified end markets with reduced exposure to more cyclical industries Dyneema® Acquisition $1.48B acquisition strengthens composites platform Significantly improved EBITDA margins $950M divestiture results in 100% specialty sales Strong exit multiple of 10x TTM EBITDA despite market volatility Distribution Divestiture Improved Portfolio GROWING COMPOSITES PLATFORM CONTRIBUTIONS TO SEM SEGMENT 10 Note: 2022 is pro forma for Avient Protective Materials 2016 Sales 2022 Sales Advanced Composites 51% $560M $1,300M Advanced Composites 9% COMPOSITES PORTFOLIO D Y N E E M A ® E X P A N D S O U R E N G I N E E R E D F I B E R S A N D T A P E S T E C H N O L O G Y LFT Tapes Laminates/Panels Shapes Pultrusion Engineered Fibers 11 ADVANCED COMPOSITES PERFORMANCE 12 (1) Pro forma for the acquisition of Avient Protective Materials Sales $51 $84 $212 $668 2016 2018 2020 2022 $4 $10 $41 $169 2016 2018 2020 2022 EBITDA (1) (1) ($ in millions) PORTFOLIO EVOLUTION AND EPS EXPANSION 13 Adj.

The non-GAAP financial measures include: Adjusted Earnings Per Share, Free Cash Flow, Net Debt/Adjusted EBITDA, Adjusted EBITDA and Adjusted EBITDA Margin. Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share, Net Debt/Adjusted EBITDA and Free Cash Flow to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. Q 1 2 0 2 3 -8% +6% -1% Flat 10 US & Canada Latin America EMEA Asia Total Avient -2.6% 2023 G U IDA N CE $128 $525 Q3 FY $0.56 $2.40 Q3 FY 2023 GUIDANCE 12 $800 $3,280 Q3 FY Sales Adjusted EBITDA Adjusted EPS (in millions) (in millions) 13 • Focused on working capital management, restructuring actions to streamline operations • IT investment to further integrate acquired businesses and capture operational efficiencies • Preserve Free Cash Flow to maintain net leverage CASH FLOW / LEVERAGE ($ millions) 2023E Cash Flow from Operating Activities 320$ Less: CapEx (140) Free Cash Flow 180$ Adjusted EBITDA 525$ Net Debt / Adjusted EBITDA 3.0x SUSTAINABILITY AS A GROWTH DRIVER 14 LONG-TERM REVENUE GROWTH DRIVERS Revenue From Sustainable Solutions* 2016-2022 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** $1,175M *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business ***2022 is Pro Forma for the acquisition of Avient Protective Materials and the divestiture of Distribution 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue SUSTAINABILITY REPORT 2022 • Provides progress on 2030 goals • Reaffirms commitment to U.N.

U-PVC PIPE & FITTING PRODUCER P I P E & F I T T I N G • Meet the diverse coefficient of friction (CoF) requirements across various film structures and compositions for a wide range of applications • Improve the speed of slip blooming and ensure consistent slip performance post-film production • Preserve excellent optical and mechanical properties • Compliance with food regulations for end packaging in food sealant applications • Improved the customer’s workplace environment by installing a new tote liquid supply system • Enhanced color consistency and reduced production wastage from pigment speck and streak issues • Complied with strict regulatory controls for potable pipe requirements ColorMatrix Liquid Color Concentrates KEY REQUIREMENT WHY AVIENT AVIENT SOLUTION PRODUCTIVITY + COMPLIANCE Avient Corporation 1 • Meet the diverse coefficient of friction (CoF) requirements across various film structures and compositions for a wide range of applications • Improve the speed of slip blooming and ensure consistent slip performance post-film production • Preserve excellent optical and mechanical properties • Compliance with food regulations for end packaging in food sealant applications KEY REQUIREMENT • Standard colorant to apply for internal color matching in PVC sheet applications • Phthalate free plasticizer class as hazardous healthy control requirement • Good thermal stability and compatibility in PVC resin of color index choices • Compliance with Heavy metal free and RoHS regulation KEY REQUIREMENT• Support the mass production capacity of white pipe extrusion • Reduces particulates from TiO2 bulk pigment use in the workplace • Ensure excellent pigment dispersion to meet mechanical pipe properties over an extensive useful life • Compliance with NSF and UL regulations for end application requirements in the building and construction industry LIQUID COLOR CONCENTRATES AND DOSING | AVIENTLEARN MORE KEY REQUIREMENTS Copyright © 2025, Avient Corporation.

The non-GAAP financial measures include: adjusted EPS, adjusted operating income, free cash flow and adjusted EBITDA. D is t. ) K W R R P M P P G A V Y F U L G C P IF F H X L F M C F O E H U N E C L K R A E M N A S H C E S C L G R A A LB Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of April 27, 2021 Avient reflects 2021 estimated revenue of $4,300M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Our free cash flow supports shareholder value creation through investing in R&D for organic growth, completing bolt-on acquisitions, and returning cash to shareholders via our dividend program and opportunistic share repurchases. 19 1.

Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share and Free Cash Flow to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator 5. PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.47 2022 PF 2023 Adjusted EPS (in millions) - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 16 $112 $500 Q4 FY $0.47 $2.30 Q4 FY Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Q4 FY 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 18 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% 20 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 18 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% 16.0% 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 Formulators Other Specialty / Chemical Companies Source: Peer data per Bloomberg as of October 27, 2023 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 KW R FU L PP G AV Y R PM FM C H U N C E EC L AS H H XL EM N SC L FREE CASH FLOW CONVERSION Source: Peer data per Bloomberg as of October 27, 2023 Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

The non-GAAP financial measures include: adjusted EPS, adjusted operating income, free cash flow and adjusted EBITDA. D is t. ) K W R P P G A V Y F U L R P M G C P H X L F M C H U N IF F E C L A S H K R A E M N C E S C L A LB Median: 5%Median: 3% Source: Peer data per Bloomberg market data as of July 28, 2021 Avient reflects 2021 estimated revenue of $4,650M and excludes one-time synergy capture CAPEX ($20M) Avient Specialty Formulators Other Chemical/Specialty Companies Free Cash Flow Conversion (1) 2021E (%) Being asset light helps us to generate strong free cash flow that is in line with specialty formulators. Our free cash flow supports shareholder value creation through investing in R&D for organic growth, completing bolt-on acquisitions, and returning cash to shareholders via our dividend program and opportunistic share repurchases. 24 1.