Our products add important characteristics, such as water-blocking, water repellence, adhesion, color, and wear & UV-resistance to these and many other applications.

This product selection guide provides detailed information to help you select the Maxxam product that’s right for your application. 4 Product Code - - - PP5113 B44 F5134T2-4 PP5130 B63 F5134T4-1 Filler Percentage - % - 13 20 30 40 Tensile Strength Yield psi ASTM D638 5000 4800 4600 4500 MPa ISO 527 33 33 32 31 Tensile Elongation Yield % ASTM D638 6 4 3 2 Break % ASTM D638 60 30 15 10 Flexural Modulus 73°F (23°C) psi ASTM D790 300,000 360,000 400,000 460,000 MPa ISO 178 2300 2450 2900 3300 Notched Izod 73°F (23°C) ft-lb/in ASTM D256 0.65 0.60 0.55 0.50 kJ/m2 ISO 180 3.50 3.3 3.00 2.75 Heat Deflection 66 psi °F ASTM D648 230 240 260 275 °C ISO 75 110 116 127 135 264 psi °F ASTM D648 130 140 150 175 °C ISO 75 54 60 66 79 Specific Gravity 73°F (23°C) - ASTM D792 0.99 1.04 1.15 1.25 Linear Shrinkage 1/8 in wall % - 1.2–1.6 1.0–1.4 0.8–1.2 0.6–1.0 3.2 mm wall % - 1.2–1.6 1.0–1.4 0.8–1.2 0.6–1.0 Product Code - - - PP6113 A77-SM PP6120 B16-2 PP6130 B11 PP6135 B40-UV Filler Percentage - % - 13 20 30 35 Tensile Strength Yield psi ASTM D638 4350 3500 2600 3700 MPa ISO 527 30 24 18 26 Tensile Elongation Yield % ASTM D638 5 4 7 6 Break % ASTM D638 35 70 150 70 Flexural Modulus 73°F (23°C) psi ASTM D790 290,000 280,000 280,000 390,000 MPa ISO 178 2000 1950 1750 2700 Notched Izod 73°F (23°C) ft-lb/in ASTM D256 0.7 2.7 4.5 0.65 kJ/m2 ISO 180 4.0 14 24 3.5 Heat Deflection 66 psi °F ASTM D648 239 215 225 250 °C ISO 75 115 102 107 123 264 psi °F ASTM D648 140 125 130 150 °C ISO 75 60 52 54 60 Specific Gravity 73°F (23°C) - ASTM D792 0.99 1.05 1.15 1.18 Linear Shrinkage 1/8 in wall % - 1.1–1.5 .9–1.3 0.7–1.1 0.5–0.9 3.2 mm wall % - 1.1–1.5 .9–1.3 0.7–1.1 0.5–0.9 Maxxam™ Talc-Filled Copolymer Polypropylene Maxxam™ Talc-Filled Homopolymer Polypropylene Offers a moderate level of impact strength and improved stiffness and heat deflection performance. Offers a high level of stiffness and heat resistance as well as excellent impact resistance Product Code - - - PP5410 B1 PP5420 B1 PP5430 B5 PP5440 B1 Reinforcement % - - - 10 20 30 40 Specific Gravity 73°F (23°C) - ASTM D792 0.96 1.05 1.14 1.23 Tensile Strength Yield psi ASTM D638 8000 10000 11500 13000 MPa ISO 527 55 69 79 90 Tensile Elongation Break % ASTM D638 8 2 2 2 Flexural Modulus 73°F (23°C) psi ASTM D790 525,000 795,000 850,000 1,000,000 MPa ISO 178 3600 5450 5800 7550 Notched Izod 73°F (23°C) ft-lb/in ASTM D256 1.10 1.30 1.50 1.60 kJ/m2 ISO 180 6.00 7.25 8.25 8.50 Heat Deflection 66 psi °F ASTM D648 280 305 310 315 °C ISO 75 138 152 154 157 264 psi °F ASTM D648 250 280 290 300 °C ISO 75 121 138 143 149 Linear Shrinkage 1/8 in wall % - 0.4–0.7 0.3–0.6 0.3–0.6 0.2–0.5 3.2 mm wall % - 0.4–0.7 0.3–0.6 0.3–0.6 0.2–0.5 Product Code - - - PP7410 A241 PP7420 B77 PP6430 A206-UV PP6435 Reinforcement % - - - 10 20 30 35 Specific Gravity Yield - ASTM D792 0.98 1.05 1.14 1.17 Tensile Strength Yield psi ASTM D638 5300 9200 9000 13300 MPa ISO 527 37 64 62 92 Tensile Elongation Break % ASTM D638 8 4 4 4 Flexural Modulus 73°F (23°C) psi ASTM D790 240,000 420,000 695,000 810,000 MPa ISO 178 1650 2900 4800 5600 Notched Izod Impact 73°F (23°C) ft-lb/in ASTM D256 5.0 1.60 1.60 2.50 kJ/m2 ISO 180 27.5 9.00 9.00 14.00 Heat Deflection 66 psi °F ASTM D648 298 313 297 300 °C ISO 75 144 156 152 149 264 psi °F ASTM D648 210 272 265 288 °C ISO 75 92 133 128 142 Linear Shrinkage 1/8 in wall % - 0.4–0.7 0.3–0.6 0.3–0.6 0.2–0.5 3.2 mm wall % - 0.4–0.7 0.3–0.6 0.3–0.6 0.2–0.5 Maxxam™ Glass Fiber Reinforced Homopolymer Polypropylene Maxxam™ Glass Fiber Reinforced Copolymer 71.866.POLYONE www.polyone.com Product Code - - - PP5312 PP5320 A285 PP5330 A123 PP5340 B2 Reinforcement % - % - 12 20 30 40 Specific Gravity 73°F (23°C) - ASTM D792 0.99 1.05 1.15 1.24 Tensile Strength Yield psi ASTM D638 4800 4400 3600 4900 MPa ISO 527 31 30 32 38 Tensile Elongation Yield % ASTM D638 5 4 4 3 Break % ASTM D638 20 15 20 10 Flexural Modulus 73°F (23°C) psi ASTM D790 285,000 380,000 355,000 460,000 MPa ISO 178 1950 2600 2450 3200 Notched Izod 73°F (23°C) ft-lb/in ASTM D256 0.6 0.55 1.5 0.60 kJ/m2 ISO 180 3.30 3.00 8.25 3.30 Heat Deflection 66 psi °F ASTM D648 235 255 230 280 °C ISO 75 113 124 110 138 264 psi °F ASTM D648 135 156 150 180 °C ISO 75 57 69 66 82 Linear Shrinkage 1/8 in wall % - 1.4–1.9 1.0–1.4 1.1–1.5 0.6–1.0 3.2 mm wall % - 1.4–1.9 1.0–1.4 1.1–1.5 0.6–1.0 Offers improved stiffness and heat deflection as well as outstanding dimensional stability.

Š The ultimate recovery of certain of our deferred tax assets is dependent on the amount and timing of taxable income that we will ultimately generate in the future and other factors such as the interpretation of tax laws. The value of the portion of the award that is ultimately expected to vest is recognized as expense over the requisite service periods in the accompanying Consolidated Statements of Income. Note 15 — SHARE-BASED COMPENSATION Share-based compensation cost is based on the value of the portion of share-based payment awards that are ultimately expected to vest during the period.

FX -11% FX -3% Total Avient -14% YoY Comparison against 2022 pro forma results • Aging infrastructure driving need for greater technological advancements and upgrades • Increased focus on strength and capacity of electrical grid plays into further adoption of composites into the market  UV, weather-resistance, customized capabilities  Best-in-class customer responsiveness  Local high-quality manufacturing, unparalleled breadth of portfolio  Expanding position in insulators, utility poles, crossarms, and wind energy Avient Confidential 11 ENERGY 11 • Fiber-optic investments from AT&T, Corning, Commscope continue to drive industry toward innovation • $42B BEAD program in Infrastructure Bill to increase cable deployments; well-positioned to capitalize on “Made in America” requirement and “last mile” buildout  Flame retardance, weather-resistance enables faster, safer, more reliable connections  Local manufacturing, unparalleled breadth of portfolio  Expanding position in insulation for wire jacketing, 5G buildout TELECOMMUNICATIONS Source: U.S. National Defense budget of $842 billion submitted to Congress in Q1 2023 • European NATO members annual defense spend expected to increase by up to 20%  Dyneema® is the world’s strongest fiber™  One of the highest strength to weight ratios of any material on Earth  Direct relationships with industry leading armor manufacturers  Resistant to most chemicals, UV, and moisture to handle any environment Avient Confidential 13 DEFENSE Source: US Department of Defense, defense.gov, NATO13 Source: TRANSPORTATION • Increased EPA regulations requiring improved fuel efficiency, enabled in part by lower-weight vehicles • Automakers preparing for 2/3 of U.S. vehicles to be 100% electric by 2032  Lightweight panels that establish both strength and stiffness resulting in decreased energy usage, lower emissions  Long-lasting Color applications to resist UV exposure, temperature fluctuations and exceed the stylistic requirements of global automakers 14 $130 $530 $0.60 $2.40 2023 GUIDANCE 15 Sales Adjusted EBITDA $845 $3,400 Adjusted EPS (in millions) (in millions) CASH FLOW / LEVERAGE 16 • Maintaining free cash flow and leverage guidance from February earnings call • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ millions) 2023E Cash Flow from Operating Activities 350$ Less: Run-Rate CapEx (110) CapEx for IT System Upgrade (25) CapEx for Restructuring (15) Total CapEx (150) Free Cash Flow 200$ Adjusted EBITDA 530$ Net Debt / Adjusted EBITDA 2.9x LONG-TERM REVENUE GROWTH DRIVERS Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites 10% Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% 17 Sustainable Solutions 32% Asia / LATAM Composites Other (GDP Growth) 39% • Virtual presentation to be held September 20, 2023 • The company will be conducting an investor-focused presentation around our sustainability solutions portfolio Avient Confidential 18 SUSTAINABILITY INVESTOR DAY 18 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2022 ($ in millions) Organic Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 19 *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 $1,175M Lightweighting Eco-Conscious Recycle Solutions VOC Reduction Sustainable Infrastructure Human Health & Safety Reduced Energy Use Bio-polymers SUSTAINABILITY NEEDS BY MARKET B&C • Eco-Conscious • Carbon footprint • Resource conservation • Carbon footprint • Bio based content • Eco-Conscious Automotive • Light weighting • Recycled Content • VOC reduction • Recycle Solutions • Carbon Footprint Packaging • Recycle Solutions • Food waste reduction Common Theme: CO2 Emission Goals Increasing Single-Use Plastic Regulation 20 INVESTING IN INNOVATION S U S T A I N A B I L I T Y P O R T F O L I O 21 AP P EN D IX 24 RAW MATERIAL 2022 ANNUAL PURCHASES Performance Additives Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials • Cost inflation decelerating, particularly for hydrocarbon-based raw materials 2022 pro forma results for the acquisition of Avient Protective Materials SEGMENT DATA U.S. & Canada 40% 37% 18% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 24% Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 26 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .4 B ILL ION 34% 38% END MARKET REGION 27 34% 21% Building & 1% Energy 2% S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET 52% 35% REGION 28 19% 8%Industrial 9% Defense Building & 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 27% 14% 17% Building & (37% of sales)Transportation 24% 12% Building & US & Canada (40% of sales) 56% 23% Building & 1% LATAM (5% of sales) 3% 29 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,400 and estimated run-rate CAPEX of $110M. 31 4 4 5 5 5 6 7 9 FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Our global team is here to accelerate development and part approvals, supporting you with: • Materials that meet over 500 automotive polymer OEM specifications • More than 14,000 color and additive approvals for OEM specifications, including more than 2,000 UL94-registered concentrates and pre-colors • Advanced design and color expertise PORTFOLIO HIGHLIGHTS Specialized polymers and composites • Thermoplastic Elastomers • Recycled and Bio-based Thermoplastic Elastomers • Long Fiber Reinforced Formulations • Thermally Conductive Formulations • Static Dissipative, Electrically Conductive, and EMI/RFI Shielding Formulations • Pre-Colored Thermoplastics for Premium Finishes • Engineered Polymer Formulations • Continuous Fiber Tapes & Laminates Colorants, additives, and plastisols • Solid & Liquid Colorants (special effects & bio-based) • Colorant and Additive Concentrates • Functional and Performance Additives (UV, FR, antimicrobial, and more) • Liquid Additives • Chemical Foaming and Nucleating Agents • High-Temperature Concentrates • Silicone Dispersions • Vinyl Powders and Plastisols Design & Color Services • Avient Design • ColorWorks™ Design & Technology Centers UNDERHOOD Air Management Fuel Systems Filters/Cleaners Engines/Power train Fans & Shrouds Engine & Cam Covers Fluid Reservoirs Wire & Cable and Connectors Battery Systems & Supports EV Battery Systems Sensors/Controls/Actuators Turbo/Super Chargers Control Modules/Valves Gears & Hoses HVAC Systems Electrical Control Units EXTERIOR Move over metal... our material and colorant solutions enable you to replace metal and paint while improving miles per gallon or per charge.

Similar to our GLS acquisition, we will implement an “invest-to-grow” strategy to further expand the value that these unique solutions bring to customers, and ultimately our shareholders The ultimate recovery of certain of our deferred tax assets is dependent on the amount and timing of taxable income that we will ultimately generate in the future and other factors such as the interpretation of tax laws. Our additive masterbatches encompass a wide variety of performance enhancing characteristics and are commonly categorized by the function that they perform, such as UV stabilization, anti-static, chemical blowing, antioxidant and lubricant, and processing enhancement.

Our comprehensive portfolio consists of Polystrand™ and Fiber-Line™ branded tapes, made using unique processes and materials to customize performance properties to meet specific application requirements such as tensile and flexural strength, impact performance, creep, chemical, and UV resistance.

Laser markable (IR and UV) • Fiber-reinforced for even greater mechanical properties What do you want to manufacture?

They also add important characteristics, such as SWELLCOAT® water-blocking, water repellence, adhe- sion, color, and wear and UV-resistance to these and many other applications.

APPLICATIONS: Power cables, Ethernet category cables, industrial cables, solar installation cables, coaxial cables, fiber optics, hybrid cables SYNCURE™ Cross-Linked Polyethylene for Power Cable Insulation • Resistant to heat, oil, creep and abrasion • Fast extrusion speeds • UL 44 & UL 4703 flame performance • UL/CSA bulletins MAXXAM™ FR W&C Flame Retardant Polypropylene for Category Cable Insulation and Cross-Webs • Alternative to FEP • Low dielectric • Thin wall extrusion capabilities • UL 444 & plenum yellow card flame performance FIRECON™ Flame Retardant Chlorinated Polyethylene for Industrial Cable Jackets • Resistance to harsh environments • Low temperature properties • UV resistance • UL 44 flame performance ECCOH™ LSFOH Low Smoke and Fume, Non-Halogen for Insulation and Jackets • Low smoke and toxicity • Improved fire safety • Resistance to chemicals • UL44 and CPR flame performance ADDITIONAL SOLUTIONS MAXXAM™ SY Foamed Polypropylene for Coaxial Cable Insulation SYNPRENE™ Flame Retardant Thermoplastic Elastomers POLYMIX™ Customer Proprietary Formulations For more information, please visit avient.com or call +1.844.4AVIENT (+1.844.428.4368).