This literature shall NOT operate as permission, recommendation, or inducement to practice any patented invention without permission of the patent owner. 1.844.4AVIENT www.avient.com RAL** SAP CODE DESCRIPTION LIGHT RESISTANCE 9010 CC01082068BG 00016 Cromofix White 8 1021 CC10253439BG PF 391-YE-30 FPVC Masterbatch 6 2003 CC10274055BG PF 274055 OR FPVC Masterbatch 5 3000 CC10253376BG PF 3189-RD-30 FPVC Masterbatch 4–5 3015 CC10255901BG PF 2000-PK-30 FPVC Masterbatch 7–8 4005 CC10255898BG PF 255898 PU FPVC Masterbatch 5 5015 CC10253374BG PF 130-BU-30 FPVC Masterbatch 7–8 6018 CC01088641BG 06B010 Cromofix Green 5–6 7001 CC10255354BG PF 255354 GY FPVC Masterbatch 8 8003 CC01088695BG 07B005 Cromofix Brown 6 9005 CC10252184BG PF 2023-BK-30 BK FPVC Masterbatch 8 * Non-ortho-phthalate plasticizers ** Other colors available on request SOLUTIONS AVAILABLE

Environmentally stabilized nylon 6 and 6/6 long fiber composites for application intermittently exposed to water high humidity that require consistent structural performance Nylon 6 vs. OnForce™ PA 6/6, PP and TPU compounds and processing conditions

Use of Non GAAP Measures Page 3 -150.00% -50.00% 50.00% 150.00% 250.00% 350.00% PolyOne S&P 500 Strategy and Execution Drive Results Page 4 All time closing high of $29.48 August 1, 2013 • 15 consecutive quarters of double digit EPS growth • 42% CAGR adjusted EPS expansion 2006-2012 • YTD stock price has increased 42% versus 20% growth in the S&P • 275% increase in market cap: $0.7b $2.6b since 2006 The World’s Premier Provider of Specialized Polymer Materials, Services & Solutions Four Pillar Strategy Page 5 PP&S 15% Specialty Distribution 25% 0.12 0.27 0.21 0.13 0.68 0.82 1.00 2.50 $0.00 $0.25 $0.50 $0.75 $1.00 $1.25 $1.50 $1.75 $2.00 $2.25 $2.50 2006 2007 2008 2009 2010* 2011* 2012* 2015 Target Ad ju st ed E ar ni ng s P er S ha re Appliance 6% Building & Construction 13% Wire & Cable Electrical & Electronics 4% Consumer Packaging 18% Industrial 10% Misc. 5% HealthCare Transportation 16% Textiles 1% United States 70% Europe 14% Canada 8% Asia 5% Latin America 3% 2012 Revenues: $4.0 Billion* End Markets* 2012 Revenues: $4.0 Billion* EPS Page 6 * Pro Forma includes FY2012 results for Spartech (11/03/12 YE) and Glasforms & excludes discontinued operations PolyOne At A Glance * Restated to exclude discontinued operations Old PolyOne Transformation *Operating Income excludes corporate charges and special items **Pro Forma results include Spartech and Glasforms acquisitions, Specialty Coatings reclass and excludes discontinued operations 2% 34% 43% 45% 60% 65- 75% 0% 20% 40% 60% 80% 100% 2005 2008 2010 2012 2012 PF** 2015 % o f O pe ra tin g In co m e* JV's PP&S Distribution Specialty Specialty OI $5M $46M $87M $114M $150M Target Mix Shift Highlights Specialty Transformation 2015 Target Page 7 2006 H1 2013 2015 Where we were Where we are Organic Consolidated Target 1) Operating Income % Specialty: Global Color, Additives & Inks 1.7% 12.7% 12.6% 12 – 16% Global Specialty Engineered Materials 1.1% 10.9% 9.2% 12 – 16% Designed Structures & Solutions — — 4.4% 8 – 10% Performance Products & Solutions 5.4% 8.1% 8.2% 9 – 12% Distribution 2.6% 6.1% 6.1% 6 – 7.5% 2) Specialty Platform % of Operating Income 6.0% 62% 65 – 75% 3) ROIC* (after-tax) 5.0% 9.4% 15% 4) Adjusted EPS Growth N/A 26% Double Digit Expansion Proof of Performance & 2015 Goals *ROIC is defined as TTM adjusted OI divided by the sum of average debt and equity over a 5 quarter period Page 8 *Percentage of Specialty Platform revenue from products introduced in last five years 19.5% 46.5% 2006 Q2 2013 $20.3 $44.7 2006 TTM Q2'13 14.3% 31.1% 2006 Q2 2013 Research & Development Spending Specialty Platform Vitality Index Progression* Innovation Drives Earnings Growth ($ millions) Specialty Platform Gross Margin % Page 9 We are Experts in Polymer Science and Formulation  Polymer Science  Formulation  Chemistry  Processing Inputs  Base Resins  Additives  Modifiers  Colorants Specialized Polymer Materials, Services, and Solutions Expertise Satisfied Consumers PolyOne Customer Innovative Products & Services  Marketplace Demands  Performance Requirements  Value Drivers Page 10 Positioned for Strong Growth 2015 Target Rev: $5B Adj. EPS: $1.00 $0.54 $0.68 $0.30 $0.45 $0.60 $0.75 H1'12 H1'13 Adjusted EPS $101.0 $132.6 $50.0 $100.0 $150.0 H1'12 H1'13 Adjusted Operating Income (millions) +31% $68.8 $97.7 $50.0 $75.0 $100.0 H1'12 H1'13 Specialty Operating Income (millions) First Half 2013 Financial Highlights • Adjusted EPS increased 26% over prior year first half • Operating Income expanded 31% versus first half 2012 • Specialty operating income up 42% • Revenue grew 22% versus 1H ‘12 • Portfolio transformation activities  Completed acquisition of Spartech  Divested non-core Resin business +26% +42% Page 12 • Significant Debt Maturities $ 1,010 Other Debt 21 • Total Debt at 6/30/13 Less: Cash Net Debt • Available Liquidity Cash ABL Availability Total Liquidity • Net Debt / EBITDA = 1.9x • Net Debt / EBITDA = 2.1x*(tax adjusted) $392 310 $702 $1,031 392 $639 $50 $360 $600 $0 $100 $200 $300 $400 $500 $600 $700 $800 2015 2020 2023 Significant Debt Maturities As of June 30, 2013 ($ millions) Page 13 Coupon Rates: 7.500% 7.375% 5.250% *Pro Forma TTM for taxes on resin gain Debt Maturities & Liquidity Summary – 6/30/13 Cash Balance = $392M Net Debt / EBITDA* = 1.9x • Repurchased ~3.0M shares YTD in 2013 • 17 million shares are available for repurchase under the current authorization Share Repurchase • Introduced a quarterly dividend in Q1 2011 and increased in Q1 2012 (25%) and Q1 2013 (20%) • Objective of maintaining and growing Dividends • Expanding our sales, marketing, and technical capabilities is top priority • Investing in operational and LSS initiatives (including synergy capture) • CAPEX Organic Growth • Targets that expand our: • Specialty offering • End market presence • Geographic footprint • Synergy opportunities • Adjacent material solutions • North American manufacturing alignment Acquisitions *TTM 6/30/2013 Use of Cash Page 14 Why Invest In PolyOne? Net debt $ 638.8 Adjusted EBITDA Q3 2012 Q4 2012 Q1 2013 Q2 2013 Total PolyOne Income before income taxes $ 30.6 $ (1.1) $ 15.7 $ 62.9 $ 108.1 PolyOne Interest expense, net 12.4 13.7 15.6 16.6 58.3 PolyOne Depreciation and amortization 17.0 15.5 19.0 25.8 77.3 PolyOne Special items in EBITDA 8.3 26.5 27.7 (5.2) 57.3 PolyOne Adjusted EBITDA 68.3 54.6 78.0 100.1 301.0 Pro forma Spartech EBITDA 16.8 14.7 11.2 - 42.7 Pro forma EBITDA $ 85.1 $ 69.3 $ 89.2 $ 100.1 $ 343.7 PolyOne Investor Presentation�KeyBanc 2013 Capital Markets’ �Basic Materials & Packaging Conference��September 10th, 2013� Forward – Looking Statements Use of Non GAAP Measures Strategy and Execution Drive Results Four Pillar Strategy PolyOne�At A Glance Mix Shift Highlights Specialty Transformation Proof of Performance & 2015 Goals Innovation Drives Earnings Growth We are Experts in Polymer Science and Formulation Positioned for Strong Growth First Half 2013 Financial Highlights Debt Maturities & Liquidity Summary – 6/30/13 Use of Cash Why Invest In PolyOne?

There are various types of polyamides, such as Nylon 6, Nylon 66, Nylon 12, Nylon 6, 12 and their copolymers. As an example, most TPEs do not bond effectively to heat stabilized grade polyamide 6 (HS). Page 9 of 11 Zytel 70G33L Figure 6.

Digital for growth and operational excellence 6. Offsetting any inflationary headwinds with our time-tested rigor in raw material sourcing, substitution and pricing actions 6. All Rights Reserved 2025 27 Avient 2024 regional sales, by end market U S & C AN AD A 41% of sales E M E A 35% of sales AS I A 18% of sales L AT I N AM E R I C A 6% of sales 13% 22% 14% 9% 13% 10% 9% 6% 4% Packaging TelecomEnergyDefenseHealthcareBuilding & construction TransportationIndustrialConsumer 26% 13% 16% 13% 10% 5% 10% 5% 2% 31% 26% 14% 10% 5% 10% 1% 1% 2% 61% 20% 7% 6% 4% 2% Copyright © .

Microsoft PowerPoint - AVNT Q2 2022 Earnings Presentation AVIENT CORPORATION S E C O N D Q U A R T E R 2 0 2 2 R E S U L T S (NYSE: AVNT) J U LY 2 6 , 2 0 2 2 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. Defense 6% END MARKET TRANSFORMATION TO LESS CYCLICAL INDUSTRIES ( W IT H DY N E E MA, E X . D I S T R IBU T I O N) 18 END-MARKET FOCUS FOR NEW INNOVATION Semiconductors Robotics Healthcare Interconnected disruptive markets with massive innovation needs 19 APPENDIX Performance Additives Pigments TiO2 Dyestuffs 3%Polyethylene Nylon 6% Polypropylene Other Raw Materials 30% Styrenic Block Copolymer ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 22 • Significant raw material price inflation and tight inventory continued in Q2 2022, although at a slightly lesser rate compared to the prior quarter o For Q2 2022, the average cost of key hydrocarbon based materials was up 15%, roughly the same as the average cost of non- hydrocarbon based materials

Offers a moderate level of stiffness over the unfilled materials as well as improved drop impact strength. 6 Provides the maximum strength and heat resistance among polypropylene compounds. Product Code - - - TP9000 A3 TP9110 A701-SM TP9120 B397 TP9120 A525-SM TP9130 A954 Reinforcement - - - Talc Talc Talc Talc Talc Reinforcement - % - 5 11 18 20 30 Specific 73°F (23°C) - ASTM D792 0.94 0.97 1.01 1.04 1.12 Tensile Yield psi ASTM D638 2400 3000 2750 3600 3450 MPa ISO 527 18 22 19 25 24 Tensile Yield % ASTM D638 12 6 5 4 8 Break % ASTM D638 >400 100 170 30 250 Flexural 73°F (23°C) psi ASTM D790 140,000 260,000 235,000 300,000 325,000 MPa ISO 178 1100 1800 1620 2000 2250 Notched 73°F (23°C) ft-lb/in ASTM D256 No Break 6 10 2 2.2 kJ/m2 ISO 180 68.0 36.0 53.0 11.0 12.0 -30°C ft-lb/in ASTM D256 1.5 1.2 1.3 0.7 0.8 kJ/m2 ISO 180 8.5 6.0 7.0 3.9 4.0 Heat 66 psi °F ASTM D648 160 208 205 220 218 °C ISO 75 83 98 96 110 105 264 psi °F ASTM D648 100 143 140 160 160 °C ISO 75 50 62 57 70 71 Multiaxial Impact @ 6.6 m/s 0°C ASTM D3763 100% Ductile 100% Ductile 100% Ductile -30°C ASTM D3763 100% Ductile 100% Ductile 8 91.866.POLYONE www.polyone.com Maxxam™ HST Filled Polypropylene with High Strength and Stiffness Maxxam™ LO Low Odor Talc-Filled Reinforced grades that provide exceptional levels of strength and stiffness. Impact modified EXTRUSION & BLOW MOLDING POLYPROPYLENE Product Code - - - EP6713 EP6130 EP6430 EP5240 B145 EP7920 Reinforcement - - - Talc Mineral Glass CaCO3 Glass/ Mineral Reinforcement - % - 13 30 30 40 20 Specific 73°F (23°C) - ASTM D792 0.99 1.12 1.12 1.25 1.05 Tensile Yield psi ASTM D638 4800 4200 10,000 3600 6500 MPa ISO 527 31 29 69 35 45 Tensile Yield % ASTM D638 6 8 2 5 6 Break % ASTM D638 100 110 5 70 100 Flexural 73°F (23°C) psi ASTM D790 325,000 360,000 850,000 350,000 400,000 MPa ISO 178 2250 2400 5800 2400 2750 Notched 73°F (23°C) ft-lb/in ASTM D256 4.0 1.5 4.3 1.1 2.4 kJ/m2 ISO 180 20.0 8.0 24.0 6.0 13.0 Heat 66 psi °F ASTM D648 230 242 315 240 293 °C ISO 75 110 115 157 116 145 264 psi °F ASTM D648 130 158 270 140 212 °C ISO 75 54 68 132 60 100 111.866.POLYONE www.polyone.com EXTRUSION & BLOW MOLDING POLYPROPYLENE Maxxam™ Filled & Reinforced High Density Polyethylene Specifically designed for blow molding and sheet extrusion/thermoforming of structural parts.

Q1 2025 Earnings webcast Avient Corporation AVNT MAY 6, 2025 Q1 2025 results 2025 full-year financial guidance Copyright © . 2025 2 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. Offsetting any inflationary headwinds with our time-tested rigor in raw material sourcing, substitution and pricing actions 6. Executing flawlessly and continue advancing our strategy while prioritizing investments and resources for our growth vectors 1. 2. 3. 4. 5. 6.

Place vents at each 90° intersection and vent to atmosphere. 6. Increase nozzle tip diameter 6. Perform short shots to determine fill pattern and verify proper vent location 6.

Solo para productos reticulados: El silano seco no se debe secar; tiene una vida útil de 6 meses si se almacena cerrado en un lugar fresco y seco, y debe utilizarse dentro de un período de pocos días después de su apertura del empaque. EXTRUSOR Tornillo 3/4" a 6" para polietileno, de filete sencillo y sin sección de mezcla, Relación de compresión 1.5–2:1 Cabezal De presión media: ángulo de 30° a 40° Dado Del tamaño adecuado para una hilera de 1/8" o menos L/D 24:1 recomendado Paquete de mallas Sin paquete de mallas (opcional según la presión) Canal de enfriamiento 50–65°C recomendado Alimentador Preferentemente gravimétrico—3 compartimentos para cross-linked Secador Desecante, 4 horas a 70°C, para el compuesto ECCOH™ solamente; nunca se debe colocar silano seco en los secadores PROCESAMIENTO Temperatura ECCOH Serie 5000 ECCOH Serie 6000 Precalentamiento del alambre 80–120°C 80–120°C Zonas de alimentación 93°C 135°C Transición 135 °C 163°C Dosificación 150°C 190°C Cabezal/dado 165°C 215°C Material fundido 165–170°C 215–225°C Llama a la salida del dado Sí, según sea necesario Velocidad de la línea Sensible a la cizalla: Observar temperatura de fusión, amperaje del motor y presión Compuesto de purga HDPE +1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.