SmartHeat™ RHC AAzure™ Optica™ Ultimate™ UV390R APPLICATION PET process aid Acetaldehyde scavenger Heat stable, enhanced recyclability toners and colors Light barrier for PET FORMULATION Liquid dispersion Stand alone Liquid dispersion Triple A™ with SmartHeat RHC Liquid dispersion Heat stable dyes and carrier system with SmartHeat RHC Liquid dispersion USER Converters and rPET producers Converters (water) Converters and rPET producers Converters COLOR Colorless Slight blue tint or can be colored as required with the addition of Optica toners A range of blue colors and toners, also custom color solutions Green and amber colors also available Colorless RECYCLING APPLICATIONS APR accredited N/A N/A APR accredited COLORMATRIX ENHANCED RECYCLABILITY PORTFOLIO KEY BENEFITS • Corrects yellowing and balances color variation in PET preforms, bottles and rPET • Improves heat stability through the recycling process • Improves the quality and performance of rPET • Achieves improved mechanical strength in the bottle • Improves productivity, reduced blowouts, downtime and scrap rates in bottle blowing and filling • Reduces energy consumption • Supports the circular economy TARGET MARKET & APPLICATIONS PET preforms and rPET resin REGULATORY • EU - ✓ • FDA - ✓ • Mercosur - approved for use in Brazil with applicable use limitations Detailed information regarding food contact clearances available on request. 1.844.4AVIENT www.avient.com Copyright © 2025, Avient Corporation.

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LEARN MORE Avient Sustainability *The American Chemistry Council’s RC14001® standard is a 3rd party certification that provides a framework for companies to implement a comprehensive environmental, health, safety, and security management system, particularly within the chemical industry **World Resources Institute (WRI) Aqueduct Water Risk Atlas GOAL 2024 ACHIEVEMENT BUSINESS DRIVER 55% 2030 Greenhouse Gas Emissions Reduction in Scope 1 & 2 emissions vs. 2019 52% Energy efficiency improvements and green energy procurement Delivers energy efficiency & cost savings outcomes Alignment with stakeholder expectations and commitments 3% Annual Waste to Landfill Reduction in waste to landfill intensity 5% 50 “landfill free” sites Drives operational efficiencies and cost savings Enables circular economy and resource conservation 60% 2030 Renewable Energy Source electricity from renewable sources 61% Green electricity purchase agreements Decreases reliance on fossil fuel-driven energy sources Reduces scope 2 emissions in support of our GHG reduction target 90% 2030 Suppliers Assessed Assess supplier spend for alignment with our Sustainability objectives 75% EcoVadis to facilitate assessments Mitigates supply chain risk for Avient and our customers Drives transparency and accountability throughout the value chain N E W F O R 2 02 5 GOAL BUSINESS DRIVER 75% 2030 Environmental, Health & Safety Management Systems Sites achieving the ACC RC14001® certification* to support our culture of safety and sustainability A culture of safety and sustainability is a foundational strength of our company The ACC RC14001 certification drives business performance though ethical leadership, operational excellence, safety, and stakeholder trust Currently 47% of our sites are certified in 2024 100% 2030 Water Stewardship Sites implementing water stewardship plans in extremely high-risk areas as assessed using WRI Aqueduct Water Risk Atlas** Water stewardship plans enable proactive management of water-related risks, help safeguard operations, reduce environmental impact, and build stakeholder trust—turning environmental responsibility into a competitive advantage Currently 26% of our manufacturing sites are located in extremely high-risk water locations 100% Annual Community Engagement Sites actively engaged with their local communities Actively engaging in communities builds trust, fosters collaboration, and creates long-term value through trusted local partnerships 100% of our sites engaged with their communities in a positive way in 2024 Sustainability Report | 2024 13Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress https://www.avient.com/company/sustainability/sustainability-report/goals-commitments/2030-goals-progress https://www.americanchemistry.com/ https://www.wri.org/aqueduct Sustainability Performance & Recognition Building on our culture of sustainability, Avient continues to be recognized by third party rating agencies and awards. Policies & Guidelines Animal Testing Policy Audit Committee Charter California Transparency in Supply Chains Act Disclosure Code of Conduct Code of Ethics—Applicable to Avient Senior Officers ColorMatrix Europe Limited—Modern Slavery and Human Trafficking Statement Compensation Committee Charter Conflict Minerals Policy Corporate Governance Guidelines Environmental Policy Equal Employment Opportunity Global Chemical Management Global ISO Certificate Library Global Policy on Anti-Bribery and Anti-Corruption Global Policy on Antitrust Governance and Corporate Responsibility Committee Charter Human Rights Policy No Surprises PledgeSM Position on Biodiversity Position on Water Stewardship Privacy Statement Product Stewardship Policy Quality Policy Responsible Care Policy Safety and Health Policy Security Policy Supplier Code of Conduct Sustainability Report | 2024 45Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix https://www.avient.com/sites/default/files/2022-03/Sustainability%20ESG%20Disclosures_Animal%20Testing%20Policy.pdf https://www.avient.com/sites/default/files/2023-01/Avient%20Audit%20Committee%20Charter.pdf https://www.avient.com/california-transparency-act-disclosure https://www.avient.com/company/policies-and-governance-0/code-conduct https://www.avient.com/sites/default/files/2023-12/Senior%20Financial%20Officer%20Code%20of%20Conduct%20Policy%20%282023%29_0.pdf https://www.avient.com/sites/default/files/2025-06/CM%20Europe%20Ltd%20Modern_Slavery_Statement_2025.pdf https://www.avient.com/sites/default/files/2025-06/CM%20Europe%20Ltd%20Modern_Slavery_Statement_2025.pdf https://www.avient.com/sites/default/files/2024-10/Compensation%20Committee%20Charter%20-%20Final.pdf https://www.avient.com/sites/default/files/2020-10/avient-conflict-minerals-policy-10.2020.pdf https://www.avient.com/sites/default/files/2024-05/3b%20-%20Corporate%20Governance%20Guidelines.Draft%20Feb.%202024.v1.2.Revised.4-16-24.Final_.pdf https://www.avient.com/sites/default/files/2023-12/Avient_Environmental%20Policy_Dec_18_2023.pdf https://www.avient.com/sites/default/files/2024-06/EEO%20Policy%20Jan%202024.pdf https://www.avient.com/sites/default/files/2022-03/Sustainability%20ESG%20Disclosures_Global%20Chemical%20Mgt%20Policy.pdf https://www.avient.com/company/policies-and-governance-0/global-iso-certificate-library https://www.avient.com/company/policies-and-governance/global-policy-anti-bribery-and-anti-corruption https://www.avient.com/company/policies-and-governance/global-policy-antitrust https://www.avient.com/sites/default/files/2024-05/3b%20-%20Corporate%20Governance%20Guidelines.Draft%20Feb.%202024.v1.2.Revised.4-16-24.Final_.pdf https://www.avient.com/company/policies-and-governance-0/avients-human-rights-policy https://www.avient.com/company/sustainability/sustainability-report/products/no-surprises-pledge https://www.avient.com/company/policies-and-governance-0/avients-position-biodiversity https://www.avient.com/company/policies-and-governance-0/avients-position-water-stewardship https://www.avient.com/company/policies-and-governance-0/avient-corporation-privacy-statement https://www.avient.com/sites/default/files/2023-12/Avient_ProdStewardship_Policy_Dec_18_2023.pdf https://www.avient.com/sites/default/files/2023-12/Avient%20Quality%20Policy%20-%20Dec%2018%202023%5B83%5D.pdf https://www.avient.com/sites/default/files/2023-12/Avient_ALL_Policies_Dec_18_2023.pdf https://www.avient.com/sites/default/files/2023-12/Avient_Health_And_Safety_Policy_Dec_18_2023.pdf https://www.avient.com/sites/default/files/2023-12/Avient_SecurityPolicy_Dec_18_2023.pdf https://www.avient.com/company/policies-and-governance-0/supplier-code-conduct Appendix People Data & Metrics Planet Data & Metrics Workforce Demographics Earth Day Photos GRI/SASB/TCFD Content Index Reconciliation of Non-GAAP Financial Measures Sustainability Report | 2024 46Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix Category 2019 2020 2021 2022 2023 2024 Total TRIR (#—Direct) 0.56 0.50 0.55 0.51 0.58 .40 Total TRIR (#—Contractors) 0.00 0.00 0.00 0.00 2.00 1.67 Recordable Injuries (Total #) 36 37 55 57 62 44 Recordable Illnesses (Total #) 0 0 0 0 0 0 Total LTIR (#—Direct) 0.29 0.24 0.14 0.15 0.26 0.13 Total LTIR (#—Contractors) 0.00 0.00 0.00 0.00 1.50 0.00 Total Injuries of High Consequence (% of TRIR) 14 8 2 2 2 2 Total Fatality Rate (#—Direct) 0.00 0.00 0.00 0.00 0.00 0.00 Total Fatality Rate (#—Contractors) 0.00 0.00 0.00 0.00 0.00 0.00 Process Safety Incident Count (#) 0 0 0 0 0 0 Process Safety Total Incident Rate (#) 0.00 0.00 0.00 0.00 0.00 0.00 Process Safety Incident Severity Rate (#) 0.00 0.00 0.00 0.00 0.00 0.00 Transport Incidents (#—US DOT 5800/EU ADR) 0 0 0 0 0 0 Employee Safety Engagement Activities (#) N/A N/A 10,100 14,658 11,806 23,229 EH&S Internal Audits (#) 58 37 25 40 76 57 Workers covered by an EH&S Management Systems (%) 100 100 100 100 100 100 Workers covered by an internally audited EH&S MS (%) 100 100 100 100 100 100 Facilities externally certified ISO45001 (or equivalent — %)* N/A 52 56 54 51 62 Suppliers externally certified ISO45001 (% of surveyed) N/A 44 56 53 54 38 *Certificates can be found at (https://www.avient.com/company/policies-and-governance/global-iso-certificate-library) People Data and Metrics Sustainability Report | 2024 47Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix https://www.avient.com/company/policies-and-governance/global-iso-certificate-library Planet Data and Metrics Category 2019* 2020* 2021* 2022* 2023 2024 Energy1 Total Energy (GJ) 2,377,860 2,242,291 2,361,107 2,265,482 2,144,770 2,217,903 Energy Intensity (GJ/MT Sales) 5.09 5.04 4.77 5.05 5.63 5.61 Renewable Electricity (MWh)** 104,880.63 122,505.22 174,701.68 232,488.43 253,894.78 259,622.57 Electric Power (MWh) 461,426.13 439,773.23 460,693.35 439,215.11 409,650.68 424,609.88 Renewable Electricity (%) 23 28 38 53 62 61 Renewable Energy (%) 16 20 27 37 43 42 Total Self-Generated Energy (GJ) 11,845 14,590 11,461 12,019 15,710 13,490 Energy Saving Activities (#) 59 74 102 129 118 103 Annual Savings from Energy Saving Activities (GJ) 35,573 19,490 72,845 100,951 65,538 27,104 Capital Invested in Energy Savings ($MM USD) 1.97 2.43 1.74 5.05 3.85 3.48 Purchased Energy (%) Purchased Electricity (%) 49.74 51.70 51.05 69.79 68.76 68.92 Purchased Natural Gas (%) 12.89 14.11 13.46 29.45 30.24 30.09 Purchased Steam (%) 0.00 0.00 0.00 0.00 0.00 0.12 Purchased Diesel Fuel (%) 0.87 0.95 1.12 0.76 0.48 0.38 Sources of Purchased Electricity (%)2 Non-Renewable: Coal 46.72 45.53 41.12 40.04 39.61 38.40 Non-Renewable: Natural Gas 33.69 36.12 17.51 17.41 17.35 16.70 Non-Renewable: Other Fossil Fuels 0.00 0.00 0.26 0.21 20.00 19.00 Non-Renewable: Nuclear 11.95 11.37 9.86 9.01 8.82 8.70 Non-Renewable: Oil 2.16 1.60 1.82 1.70 1.67 1.43 Renewable: Hydro 3.24 2.23 14.79 15.22 14.07 14.24 Renewable: Wind 0.70 0.88 7.94 9.02 9.97 10.00 Renewable: Solar 1.48 2.20 3.76 4.67 5.61 7.14 Renewable: Biomass 0.06 0.07 2.53 2.44 2.37 2.41 Renewable: Geothermal 0.00 0.00 0.29 0.28 0.27 0.25 Sustainability Report | 2024 48Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix Category 2019* 2020* 2021* 2022* 2023 2024 Emissions1 Greenhouse Gas Emissions (MT Scope 1 GHG)** 36,680 39,023 36,147 34,792 33,384 37,334 Greenhouse Gas Emissions (MT Scope 2 GHG)** 169,789 102,479 100,595 99,465 72,976 62,431 Greenhouse Gas Emissions (MT Scope 3 GHG)3 584,622 1,440,584 2,122,338 6,421,128 5,685,564 See CDP Greenhouse Gas Emissions (MT Scope 1 & 2 GHG)** 206,469 141,502 136,742 134,257 106,360 99,765 Greenhouse Gas Emissions Intensity (MT 1&2 GHG/ MT Sales) 0.44 0.32 0.28 0.30 0.28 0.25 Greenhouse Gas Emissions Intensity (MT 1&2 GHG/ $B Revenue) 51,864 63,886 41,249 39,524 33,840 30,792 Annual GHG Emissions Avoidance from ESA & WMA (MT) 8,880 10,809 34,705 62,406 127,991 6,588 Reportable Releases—Above Permitted Limits (#) 0 0 0 0 1 0 Emissions of SOx/NOx/VOC/HAPs (MT) SOx 0.08 0.08 0.08 0.17 0.16 0.16 NOx 14.74 10.85 11.77 12.96 13.40 10.45 VOC 695.40 659.43 648.17 563.96 669.99 452.66 Top 4 Hazardous Air Pollutants 0.98 1.00 1.18 6.96 5.98 6.79 Particulate Matter 33.78 30.99 32.88 28.02 24.12 26.43 Waste Total Waste (MT) 31,087 29,783 33,090 32,267 31,462 30,012 Total Waste Intensity (Kg Waste/MT Sales) 66.60 66.92 66.90 71.88 82.66 75.97 Total Waste Intensity (MT Waste/ $B Revenue) 7,809 13,447 9,982 9,499 10,010 9,263 Percent of Total Waste Recycled/Beneficially Reused (%) 51.45 50.51 47.85 48.60 61.06 58.95 Percent of Total Waste Landfilled (%) 40.13 40.20 43.26 44.24 34.17 35.20 Total Waste Landfilled (MT)** 12,476 11,972 14,315 14,274 10,751 10,565 Total Non-Hazardous Waste (MT) 27,608 26,606 29,298 28,503 28,318 26,125 Waste Minimization Projects (#) 34 53 142 114 84 74 Annual Diversion from Waste Minimization Projects (MT) 2,087 743 3,136 8,423 2,975 1,845 Capital Invested in Waste Minimization ($MM USD) 0.00 0.33 1.48 2.67 0.40 1.21 Landfill Free Sites (%) N/A N/A N/A N/A 47 50 Hazardous Waste Hazardous Waste US & Canada (%) 29 16 19 21 26 34 Hazardous Waste Latin America (%) 5 5 6 6 3 3 Hazardous Waste Europe (%) 36 51 41 34 36 27 Hazardous Waste Asia Pacific (%) 27 25 30 36 34 34 Hazardous Waste Middle East & Africa (%) 3 3 4 3 2 3 Total Hazardous Waste (MT) 3,480 3,177 3,792 3,850 3,173 4,169 Sustainability Report | 2024 49Contents | About Avient | Message from the CEO | Sustainability at Avient | Enabling a Sustainable World | Preserving the Planet | Culture of Safety & Sustainability | Governance | Appendix Category 2019* 2020* 2021* 2022* 2023 2024 Water & Biodiversity Total Water Withdrawal (1000 m3) 1,356 1,801 1,796 1,738 1,599 1,652 Total Water Withdrawal Intensity (m3/MT Sales) 2.90 4.05 3.63 3.87 4.20 4.18 Total Wastewater Discharge (1000 m3) 892 1,032 1,164 1,122 1,146 1,247 Wastewater Recycled (% of Total) 34 43 35 35 28 25 Total Water Related NoV (#) 0 0 0 0 3 0 Withdrawal & Consumed from High & Extremely High Water Risk Areas (% of Total) N/A N/A N/A N/A 26 37 Water Minimization Projects (#) 4 6 19 19 10 10 Annual Diversion from Water Minimization Projects (1000 m3) 9 20 55 115 284 6 Capital Invested in Water Minimization ($MM USD) 0.04 0.38 0.24 0.07 1.02 0.39 Sites in High Biodiversity Physical Risk Areas (%) N/A N/A N/A N/A 10 7 Sites in High Biodiversity Reputational Risk Areas (%) N/A N/A N/A N/A 0 4 Sites in High & Extremely High Water Risk Areas by Region US & Canada (%) N/A N/A N/A N/A 11 11 Latin America (%) N/A N/A N/A N/A 4 4 Europe (%) N/A N/A N/A N/A 6 8 Asia Pacific (%) N/A N/A N/A N/A 12 13 Middle East & Africa (%) N/A N/A N/A N/A 4 4 Certified Environmental Management Systems Facilities externally certified to ISO14001/RC14001 (%)4 N/A 50 52 57 58 52 Facilities externally certified to ISO50001 (# of high energy sites)4 2 2 2 2 3 3 Suppliers externally certified ISO14001 (% of surveyed) N/A 70 75 72 72 54 Suppliers externally certified to ISO50001 (% of surveyed) N/A 17 19 24 32 22 *Includes estimated full year performance of APM acquisition **2019 baseline data revised to account for acquisition pro-forma performance and divestitures (1) Refer to CDP Climate Change Report for finalized Energy/Emissions information https://www.avient.com/company/sustainability/sustainability-report/reporting/cdp-climate-change-report (2) Estimates.

Microsoft PowerPoint - AVNT Q1 2024 Investor Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) M AY 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Continue fostering our Great Place to Work® culture Strategic ObjectivesStrategic Objectives Long Term Growth Rates Growth DriversGrowth Drivers $340 $455 $790 $1,135 2016 2018 2020 2023 $51 $84 $212 $645 2016 2018 2020 2023 $108 $113 $231 $230 2016 2018 2020 2023 $265 $358 $726 $725 2016 2018 2020 2023 8-12% 8-10% 8-10% 5% Sustainable Solutions Composites Healthcare Asia/Emerging Regions Profitable GrowthProfitable Growth Great Place to WorkGreat Place to Work 5.4% 10.9% 16.0% 2006 2014 2023 EBITDA Margins $0.14 $1.93 $2.36 2006 2014 2023 Adjusted EPS TOP-TIER SUSTAINABILITY PERFORMANCE AND RECOGNITION Industry Sustainability Standards ESG Ratings Performance 1 2 4 87th 94th percentile 5 Avient CDP Score: A- M AY 7 , 2024 W EB CAS T P RE SE N TATI O N 7 REGIONAL DEMAND TRENDS-TOTAL COMPANY Q 1 S A L E S V S P Y ( E X C L U D I N G F X ) 7 US & Canada Latin America EMEA Asia +2% -6% Flat +2% Avient ex. Q1 2023 (TOTAL COMPANY) $846 $829 Q1 23 Q1 24 $134 $143 Q1 23 Q1 24 17.3% Sales Adjusted EBITDA (in millions) $0.63 $0.76 Q1 23 Q1 24 Adjusted EPS (in millions) + 7% + 21% Sales Adjusted EBITDA Adjusted EPS 9 - 2% 15.8% +150 bps * * * Adjusted EBITDA Margin % Q1 2024 SEGMENT PERFORMANCE (COLOR, ADDITIVES & INKS) $537 $515 Q1 23 Q1 24 $91 $97 Q1 23 Q1 24 18.8% Sales Adjusted EBITDA (in millions) (in millions) + 7% Sales Adjusted EBITDA 10 - 4% 17.0% +180 bps * * * Adjusted EBITDA Margin % • Year over year demand continues to improve for the segment but slowly due to continued weakness in Europe • Raw material deflation & cost reduction actions primary drivers of adjusted EBITDA growth and margin expansion of +180 bps vs Q1 2023 Q1 2024 SEGMENT PERFORMANCE (SPECIALTY ENGINEERED MATERIALS) $310 $314 Q1 23 Q1 24 $64 $73 Q1 23 Q1 24 23.2% Sales Adjusted EBITDA (in millions) (in millions) + 14% Sales Adjusted EBITDA 11 + 1% 20.8% +240 bps * * * Adjusted EBITDA Margin % • Sales growth in defense end market offset by weaker demand in telecommunications end market • Raw material deflation and favorable mix impact from defense sales primary drivers of adjusted EBITDA growth and margin expansion of +240 bps vs Q1 2023 Q1 EBITDA BRIDGE (TOTAL COMPANY) 12 $ millions CAI: Price / Mix (1) Deflation 16 SEM: Price / Mix 4 Deflation 7 Net Price Benefit 26 Wage/Other Inflation (9) FX (2) Q1 2024 $143 Adjusted EBITDA Q1 2023 $ 134 Demand (6) • Positive net price benefit: o Favorable raw material deflation in both segments • Wage and other inflation more than offset cost reductions/synergies 2024 G U IDA N CE FY 2024 GUIDANCE Original Revised Adjusted EBITDA $505 to $535 million $510 to $535 million Adjusted EPS $2.40 to $2.65 $2.50 to $2.65 Interest Expense $105 to $110 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 14 Q2 2024: Adjusted EPS of $0.71 CE O “TO P O F M IN D ” FO CU S ARE A S AREAS OF FOCUS 16 +7% Drive Profitable Organic Top-Line Growth with Margin Expansion Amplify Innovation Build Leadership & Talent Pipeline AP P EN D IX 19 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 21 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 22 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION US & Canada 52% EMEA 35% Asia 13% 23 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2023 AVIENT REGIONAL SALES Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 24 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

Microsoft PowerPoint - AVNT M11 Investor Presentation AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) N OV E M B E R 2 0 2 4 DISCLAIMER Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. For the same reasons, Avient is unable to address the probable significance of the unavailable information. 2 3 AVIENT OVERVIEW 2023 Financial ResultsCompany Overview Revenue By: 9,300 Employees 102 Manufacturing Sites 20,000+ Customers  Innovating materials and processing solutions to solve our customers’ challenges while enabling a sustainable world  Broad portfolio of technologies with market leading positions and flexibility to anticipate and meet customer needs  Focus is on organic revenue growth and margin expansion, following our successful portfolio transformation $3.14B Revenue $2.36 Adjusted EPS $502M Adjusted EBITDA 16.0% Adjusted EBITDA Margins $186M Adjusted Free Cash Flow U.S. & Canada EMEA Asia Latin America 64% 36% Specialty Engineered Materials Color Additives and Inks 41% 36% 18% 5% 7% 7% 23% 19% 9% 16% 10% 5% 4% Defense Healthcare Packaging Consumer Building & Construction Industrial Transportation Energy Telecom Geography Segment Industry 2024 Financial Guidance $525 to $530 million Adjusted EBITDA $2.63 to $2.67 Adjusted EPS 4 Industry Sustainability Standards ESG Ratings Performance 1 2 4 87th 94th percentile Avient CDP Score: A- SUSTAINABILITY PERFORMANCE AND RECOGNITION O CTO BE R 3 1 , 2024 W EB CAS T P RE SE N TATI O N 6 Q3 2024 HIGHLIGHTS • 8.5% organic sales growth driven by broad-based growth across all regions and most end markets in both CAI and SEM segments • Growth stemmed from gaining share, winning new product specifications and restocking in certain end markets • Both segments expanded YoY EBITDA margins by 40 bps each • Adjusted EPS of $0.65, an increase of 14% vs the prior year • Successfully refinanced $650M outstanding senior notes due 2025; extending maturity to 2031 • Increased dividend 5% to $1.08 on an annualized basis; 14th consecutive increase Adj. FX +8.5% FX -0.4% Total Avient +8.1% Note: Regional Sales Percentages exclude impact of foreign exchange COLOR, ADDITIVES & INKS SEGMENT (Q3 2024 PERFORMANCE VS Q3 2023) $487 $522 Q3 23 Q3 24 $89 $97 Q3 23 Q3 24 Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 10 + 7% (+8% excluding FX) + 9% (+11% excluding FX) 18.3% +40 bps *18.7% * * Adjusted EBITDA Margin % • Sales growth driven by winning new product specifications in consumer & packaging, strong underlying demand in healthcare and improving demand in building & construction • Favorable mix and raw material deflation contributed to EBITDA margin expansion SPECIALTY ENGINEERED MATERIALS SEGMENT (Q3 2024 PERFORMANCE VS Q3 2023) $268 $295 Q3 23 Q3 24 $51 $57 Q3 23 Q3 24 Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 11 • Sales growth driven by restocking in healthcare & consumer end markets and strong underlying demand for composite applications used in building & construction, energy and defense end markets • Favorable mix contributed to EBITDA margin expansion + 10% (+10% excluding FX) + 12% (+13% excluding FX) 19.0% +40 bps *19.4% * * Adjusted EBITDA Margin % 2024 G U IDA N CE FY 2024 GUIDANCE Previous (Aug 6) Current Adjusted EPS $2.55 to $2.70 $2.63 to $2.67 Adjusted EBITDA $515 to $540 million $525 to $530 million Interest Expense $105 million $104 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures & Investment in S/4 Hana ~$140 million ~$140 million 13 14 • Investor Day to be held December 4, 2024 at the NYSE, beginning at 10AM • The focus will be to do a deep dive on the Company’s strategy • Registration available at www.avient.com/investors 2024 AVIENT INVESTOR DAY AP P EN D IX 17 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 19 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2023 REVENUE | $2 .0 B ILL ION US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 20 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2023 REVENUE | $1 .1 B ILL ION US & Canada 52% EMEA 35% Asia 13% 21 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2023 AVIENT REGIONAL SALES Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 22 BY END MARKET Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

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PHONE CASE BRAND P H O N E C A S E S • Compatible with antimicrobial additives • Good stain resistance • Non-yellowing • Delivered enhanced solution that included antimicrobial properties and stain resistance • Collaborated with OEM and the foremost supplier of antimicrobials to comply with key bacterial growth requirements Versaflex™ CE 3320-80 TPE KEY REQUIREMENTS WHY AVIENT?

SNOWMOBILE OEM S N O W F L A P • Cold temperature flexibility and toughness • UV stability • Easily injection moldable • Offered a specialty TPE capable of performing well in demanding environments • Delivered a technology that supported a nearly 2-foot flow length for easy processing • Generated .udb file to help accelerate new designs • Collaborated with the molder and OEM for seamless product development and production OnFlex™ Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

ColorMatrix is 'n volfiliaal van Avient Korporasie.

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