We are better together through: Keeping Safety First — PolyOne and Clariant are both ACC Responsible Care® companies, and nothing is more important than the health, safety and well-being of our people. We are Avient. 6 BETTER TOGETHER: POLYONE AND CLARIANT MASTERBATCH Key Financial Data (1) 2021E Sales $4.3 billion 2021E EBITDA $560 million 2021E Free Cash Flow $275 million 88% of EBITDA from specialty applications (1) As of April 30, 2021 webcast Synergies ($ millions) Three-Year Estimate Administrative $ 20 Sourcing 30 Operational 25 Total Synergies $ 75 7 CLARIANT COST SYNERGIES • On-track to realize $45 million of expected synergies in 2021 – up from previous estimate of $35 million • Relentless focus on guiding principles for acquisition integration: safety first, employee collaboration and exceeding customer expectations • Future revenue synergies in excess of $50 million by 2025 are not part of these estimates and represent additional growth over the long term 8 • Barrier technology • Functional additives • Processing aids • Flame retardants • Light-weighting additives Complementary Technologies • Clariant’s approved formulations and certified facilities • Legacy PolyOne’s leading share in distribution channels Healthcare Solutions • Clariant’s position in SE Asia, Latin America, Germany & Italy • Legacy PolyOne’s position in U.S., Canada and China Regional Strengths • Solutions with Avient’s engineered materials customers • Avient’s distribution channels Segment Cross-selling COMPLEMENTARY TECHNOLOGIES AND CUSTOMERS DRIVE REVENUE SYNERGIES Revenue synergy opportunities in excess of $50MM by 2025 The complementary aspects of our combined businesses are unquestionable. Operating Income $3,783 $4,100 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Previous Guidance Current Guidance $3,783 $4,300 $308 $360 $308 $410 $1.93 $2.40 $1.93 $2.80 (1) (1)(1) (1)(1) (1) $442 $457 $560 $1.74 $1.93 $2.80 FULL YEAR 2019 – 2021 ORGANIC GROWTH 23 Sales Adjusted EBITDA $3,981 $3,783 $4,300 + 8% (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1)(1) + 27% + 61% 24 BALANCE SHEET • Deleveraging to 1.9x net debt to adjusted EBITDA by the end of 2021 • Driven by record adjusted EBITDA performance and strong free cash flow generation from asset light business • Future cash deployment: M&A, opportunistic share repurchases and balance sheet / continued leverage reduction 3.5x 2.7x 1.9x Net Debt / Adjusted EBITDA ($ in millions) 2021E Adjusted EBITDA 560$ Free Cash Flow 275$ Total Debt 1,860 Less: Cash (800) Net Debt 1,060$ 2021E Net Debt / Adjusted EBITDA 1.9x (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition 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.

Our world-class safety. You can be certain that PolyOne meets or exceeds the material safety data reporting requirements of your country or region. Sustainability metrics represent 2018 data or 12-month approximate values based on available data from reporting facilities and are often made in reliance on third-party supplier information.

MINE SAFETY DISCLOSURES Not applicable. President and Chief Operating Officer, Ennis Traffic Safety Solutions (a traffic safety and infrastructure company) from June 2008 to July 2012. Environmental, Health and Safety 4.

The presentations will do a deep dive on the eight ways we approach sustainability, which include lightweighting, reduced energy use, sustainable infrastructure and human health & safety, to name a few.” Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended March 31, 2023 2022 Sales $ 845.7 $ 892.2 Operating Income 57.1 102.2 Net income from continuing operations attributable to Avient shareholders 20.8 64.4 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.23 $ 0.70 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.23 $ 0.70 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. Three Months Ended March 31, 2023 2022 Sales: Color, Additives and Inks $ 537.0 $ 649.5 Specialty Engineered Materials 309.7 243.1 Corporate (1.0) (0.4) Sales $ 845.7 $ 892.2 Gross margin: Color, Additives and Inks $ 162.0 $ 192.1 Specialty Engineered Materials 93.9 68.4 Corporate (8.3) (6.1) Gross margin $ 247.6 $ 254.4 Selling and administrative expense: Color, Additives and Inks $ 96.4 $ 97.6 Specialty Engineered Materials 50.8 30.1 Corporate 43.3 24.5 Selling and administrative expense $ 190.5 $ 152.2 Operating income: Color, Additives and Inks $ 65.6 $ 94.5 Specialty Engineered Materials 43.1 38.3 Corporate (51.6) (30.6) Operating income $ 57.1 $ 102.2 Depreciation & amortization: Color, Additives and Inks $ 25.8 $ 26.0 Specialty Engineered Materials 21.2 7.8 Corporate 3.5 3.8 Depreciation & Amortization $ 50.5 $ 37.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 91.4 $ 120.5 Specialty Engineered Materials 64.3 46.1 Corporate (48.1) (26.8) Other income (expense), net 0.7 (0.6) EBITDA $ 108.3 $ 139.2 13 Attachment 7 Avient Corporation Reconciliation of Non-GAAP Financial Measures (Unaudited) (In millions, except per share data) Senior management uses gross margin before special items and operating income before special items to assess performance and allocate resources because senior management believes that these measures are useful in understanding current profitability levels and how it may serve as a basis for future performance.

Nel caso in cui l'Acquirente non adempia a qualsivoglia obbligo di pagamento entro la relativa data stabilita, a decorrere dal giorno successivo a tale data, il Venditore avrà il diritto di addebitare interessi di mora su qualsiasi importo dovuto e non ancora pagato, ad un tasso che sarà il minore tra (i) il tasso ufficiale di riferimento registrato dalla Banca Centrale Europea in tale data, incrementato dell'8% e (ii) il tasso di interesse massimo applicabile ai sensi del diritto italiano alla stessa data. Buyer acknowledges that information in Seller’s marketing materials, technical data sheets and other descriptive publications distributed or published on its websites may vary from time to time without notice. Buyer acknowledges that Seller has furnished to Buyer Safety Data Sheets, which include warnings together with safety and health information concerning the Product and/or the containers for such Product.

Performing your job under the influence of alcohol or drugs—including the improper use of prescription drugs—can have a detrimental effect on employee health and safety and community safety, and can put company assets at risk. This includes how you collect, use, store, share, and preserve or delete or dispose of personal data. Ensuring everybody’s safety requires a constant sense of awareness and attention to detail.

Sensitive personal information refers to data that reveals an individual’s racial or ethnic origin, political opinions, religious or philosophical beliefs, or trade union membership, genetic data, biometric data, or data concerning health or data concerning a person’s sex life or sexual orientation. So that your data is handled confidentially and securely, contracts with service providers contain provisions that safeguard your data in compliance with applicable laws. Contact details for data protection authorities are available here.

Health and Safety • Implement appropriate processes and procedures to ensure that human health and safety are at the forefront of your actions. Comply with all applicable environmental, health, safety, and security regulations. Version: May 2025 mailto:sourcing@avient.com Health and Safety Environment Social Ethics and Governance Management Systems

Environmental, Health and Safety 4. MINE SAFETY DISCLOSURES Not applicable. Environmental, Health and Safety 4.

WIRE & CABLE INDUSTRY BULLETIN ESSENTIAL CONNECTIONS Wire and cable constructions play a vital role in our modern world, providing the infrastructure for everything from power lines and data communication to broadband networks and automotive components. To meet the stringent regulatory and application requirements of a dynamic wire & cable industry, it is vital to understand how material technologies contribute to performance, fire safety, connectivity, and durability. DURABILITY Extended Life, Chemical Resistance, High & Low Temperature Performance, Flexibility, UV Stability, Tensile Strength SOLUTIONS: Cross-Linkable Formulations, UV & Light Blocking Additives, High-Temperature Crosslinked Formulations REGULATORY SPECIFICATIONS Quality Assurance, UL, CSA, CPR Compliant SOLUTIONS: Flame Retardants & Compliant Colorants, Product Authentication Technologies, Flame Retardant Engineered Polymers, LSFOH Flame Retardant Formulations PROCESSING EFFICIENCY Reduced Part Weight, High Extrusion Speeds, Ambient Curing SOLUTIONS: Cross-Linkable Formulations, Chemical Foaming Agents & Additives, Processing Enhancement Additives, IMPROVED SAFETY Flame Performance, Property Protection, Heat & Chemical Resistance SOLUTIONS: Flame Retardant Engineered Polymers, Wire & Cable Colorants, Antimicrobial Additives, POWER CABLES https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/cesa-light-additives https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/colorant-chromatics-crosslinked-formulations DURABILITY & AESTHETICS Extended Life, High Material Flexibility, Chemical Resistance, UV Stability, Tensile Strength, Laser Markable Colors Colorants for Wire & Cable, UV & Light Blocking Additives, Antimicrobial Additives, Laser Marking Additives FIRE SAFETY Flame & Fire Performance, Low Dripping, Property Protection, Heat & Chemical Resistance SOLUTIONS: Flame Retardant Additives, REGULATORY SPECIFICATIONS BEAD, UL, CSA, and CPR Compliant, Quality Assurance SOLUTIONS: Engineered Fiber Products, Flame Retardants & Compliant Colorants, Product Authentication Technologies, LOW SMOKE & FUME NON-HALOGEN (LSFOH) High Flame Retardancy, Low Smoke, Fume, Corrosiveness & Toxicity, Smoke Mitigation SOLUTIONS: LSFOH Flame Retardant Formulations, Non-Halogenated FR Additives DATA CABLES SPEED & EFFICIENCY Faster Deployment, Lower Labor & Manufacturing Cost, High Extrusion Speeds SOLUTIONS: Chemical Foaming Agents & Additives, Processing Enhancement Additives, Laser Marking Additives, Water Blocking & Absorbing Yarn, Ripcords for Fiber Optic Cable ELECTRIC & THERMAL MANAGEMENT Low-Dielectric Performance, FEP Alternative, Data Integrity, Data Performance Flame Retardants & Compliant Colorants, LIGHTWEIGHTING Dielectric Strength Members, Weight Reduction SOLUTIONS: Chemical Foaming Agents & Additives, Synthetic Fiber Strength Members, Water Blocking & Absorbing Yarn HIGH-TEMPERATURE SOLUTIONS Pre-Colored Formulations, Laser Markable Colors, Standard & Custom Colors, Conductivity SOLUTIONS: High-Temperature Colorants & Pre-colored Solutions, High Temperature Marking Inks, Colorants & Additives, Conductive High-Temperature Formulations https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/ripcords-fiber-optic-cable https://www.avient.com/products/fiber-line-engineered-fiber-solutions/fiber-line-engineered-fiber-products/strength-members https://www.avient.com/products/polymer-colorants/high-temperature-color-concentrates https://www.avient.com/products/printing-and-marking-inks/colorant-chromatics-marking-inks https://www.avient.com/products/polymer-additives/colorants-and-additives-wire-cable https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/colorant-chromatics-conductive-formulations-0 POWER CABLES Cross-Linkable Formulations Syncure™ XLPE Cross-linkable Polyethylene Formulations ECCOH™ XL Cross-Linkable Formulations Colorant Chromatics™ Crosslinked Formulations UV & Light Blocking Performance UV & Light Blocking Additives ECCOH™ LSFOH UV Formulations Chemical Foaming Agents & Additives Excelite™ Chemical Foaming Additives Hydrocerol™ Chemical Foaming Agents Processing Enhancement Additives Cesa™ Processing Additives Cesa™ Laser Additives Colorant Chromatics™ UV Laser Marking Technology Flame Retardants & Compliant Colorants Cesa™ Flame Retardant Additives OnColor™ UL 94 Colorants Product Authentication Technologies Cesa™ Percept™ Authentication Technologies Syncure™ XLPE Cross-linkable Polyethylene Formulations ECCOH™ Low Smoke and Fume Non-Halogen Formulations ECCOH™ XL Cross-Linkable Formulations Wire & Cable Colorants OnColor™ Colorants for Wire & Cable Antimicrobial Additives Cesa™ WithStand™ Antimicrobial Additives Electrical Performance Additives Electrical Performance Additives https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/syncure-xlpe-cross-linkable-polyethylene-formulations https://www.avient.com/products/engineered-polymer-formulations/sustainable-formulations/eccoh-xl-cross-linkable-solutions https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/colorant-chromatics-crosslinked-formulations https://www.avient.com/products/polymer-additives/foaming-agents/excelite-chemical-foaming-additives https://www.avient.com/products/polymer-additives/foaming-agents/hydrocerol-chemical-foaming-agents https://www.avient.com/products/polymer-additives/colorants-and-additives-wire-cable/cesa-laser-additives https://www.avient.com/products/polymer-additives/laser-marking-additives/colorant-chromatics-uv-laser-marking-technology https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-ul-94-colorants https://www.avient.com/products/engineered-polymer-formulations/flame-retardant-formulations/syncure-xlpe-cross-linkable-polyethylene-formulations https://www.avient.com/products/engineered-polymer-formulations/sustainable-formulations/eccoh-xl-cross-linkable-solutions DATA CABLES ECCOH™ Low Smoke and Fume Non-Halogen Formulations Maxxam™ FR Flame Retardant Polyolefin Formulations Maxxam™ SY Foamable Flame Retardant Formulations UV & Light Blocking Performance UV & Light Blocking Additives ECCOH™ LSFOH UV Formulations Chemical Foaming Agents & Additives Excelite™ Chemical Foaming Additives Hydrocerol™ Chemical Foaming Agents Processing Enhancement Additives Cesa™ CTR Additives Cesa™ Laser Additives Colorant Chromatics™ UV Laser Marking Technology Ripcords for Fiber Optic Cable Fiber-Line™ Ripcords Water Blocking & Absorbing Yarn Swellcoat™ Water Blocking & Absorbing Yarn Flame Retardants & Compliant Colorants Cesa™ Flame Retardant Additives OnColor™ UL 94 Colorants Product Authentication Technologies Cesa™ Percept™ Authentication Technologies Engineered Fiber Products Fiber-Line™ Engineered Fibers Synthetic Fiber Strength Members Fiber-Line™ Synthetic Fiber Strength Members Antimicrobial Additives Cesa™ WithStand™ Antimicrobial Additives Colorants for Wire & Cable OnColor™ Colorants for Wire & Cable Cesa™ Conductive Additives Cesa™ Stat Antistatic Additives LSFOH Flame Retardant Formulations ECCOH™ Low Smoke and Fume Non-Halogen Formulations 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.