Q 2 2 0 2 1 P E R F O R M A N C E U P D AT E $69 $122 2020PF 2021 $0.42 $0.87 2020PF 2021 Q2 2021 – ORGANIC PERFORMANCE ( T O TA L C O M PA N Y ) 10 Sales Adjusted Operating Income $870 $1,235 2020PF 2021 + 42% Adjusted EPS + 77% + 107% (in millions) (in millions) (1) (1) (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Q2 2021 SEGMENT PERFORMANCE 11 CAI $488 $624 Sales ($ in millions) SEM Distribution $54 $86 Operating Income +28% +59% $239 $404 Sales $15 $24 Operating Income +69% +60% (1) $159 $241 Sales $17 $37 Operating Income +52% +118% (1) (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition SPECIALTY EBITDA MARGIN EXPANSION 12 CAI (1) 2018-2020 financial information is pro forma to include a full year of Clariant Masterbatch business acquisition 15.3% 15.2% 16.2% 18.5% 2018 2019 2020 YTD 2021 14.8% 15.2% 17.6% 19.1% 2018 2019 2020 YTD 2021 (1) SEM • Continued portfolio transformation to high-growth end markets and sustainable solutions • Clariant Masterbatch synergy realization • Investments in composites and outdoor high performance applications drive growth and mix improvements CAI EBITDA MARGIN EXPANSION 13 Legacy CAI 18.9% 18.9% 20.3% 2019 2020 YTD 2021 Legacy Clariant MB 11.9% 13.8% 16.8% 2019 2020 YTD 2021 • Synergy capture translating to the bottom line • Positive mix with growth in healthcare, consumer and packaging end-markets • World-class vitality index of 35% represents sales from products introduced in the last five years. ColorWorks innovation centers are specially designed to foster imagination and enable creative exploration of innovative solutions • Focus on customers’ sustainability initiatives through recyclability and post-consumer recycled materials for packaging applications • Supports 8-12% long-term revenue growth expectations across our sustainable solutions portfolio 14 2020 Pro forma $870 $69 Sustainable Solutions 66 37% 26 Healthcare 29 20% 7 Composites 12 36% 6 Growth in Asia / LATAM 47 39% 11 Other 190 48% 22 Sub-total $1,214 40% $141 COVID Response Applications (15) (8) FX Impact 36 4 Synergies 11 Incentives, Travel, Other Employee Costs (26) 2021 Actual $1,235 42% $122 Q2 2021 ORGANIC SALES AND OPERATING INCOME ( T O TA L C O M PA N Y ) 15 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition Sales Growth Rate Adjusted Operating Income$ millions (1) 16 Q2 2020PF Q2 2021 (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (2) Financial information is presented on a constant currency basis (1,2) (44% of total revenue) (56% of total revenue) Q2 END MARKET SALES PERFORMANCE +26% +38% +46% +103% +51% +9% +7% +67% Energy Telecom Building & Construction Transportation Industrial Healthcare Packaging Consumer Q2 YEAR-OVER-YEAR EBITDA BRIDGE Q2 2020 Pro forma $ 106 Demand 69 17 Adjusted EBITDA$ millions • Demand impact driven by growth in sustainable solutions and consumer products • Price increases more than offset raw material and supply chain impacts (1) Financial information is pro forma to include a full year of Clariant Masterbatch business acquisition (1) CAI: Price / Mix 40 Inflation (32) SEM: Price / Mix 23 Inflation (18) Distribution: Price / Mix 81 Inflation (77) Net Price Benefit 17 Supply Chain Disruptions (14) COVID Response Applications (8) Synergies 11 Incentives, Travel, FX, Other (22) Q2 2021 Actual $ 159     Q1 2021 Actual $ 161 CAI: Price / Mix 32 Inflation (22) SEM: Price / Mix 15 Inflation (9) Distribution: Price / Mix 50 Inflation (48) Net Price Benefit 18 Supply Chain Disruptions (12) Demand / Seasonality (6) Other (2) Q2 2021 Actual $ 15918 Adjusted EBITDA$ millions • Price increases more than offset raw material and freight inflation impacts • Demand impact driven by Q2 seasonality for the business Q1 TO Q2 SEQUENTIAL EBITDA BRIDGE     Q 3 A N D F U L L Y E A R 2 0 2 1 O U T L O O K $74 $98 2020 2021E $0.46 $0.68 2020 2021E ORGANIC GROWTH PROJECTIONS – Q3 ( T O TA L C O M PA N Y ) 20 Sales Adjusted Operating Income $925 $1,150 2020 2021E + 24% Adjusted EPS + 32% + 48% (in millions) (in millions) FULL YEAR GUIDANCE INCREASED 21 Sales Adj. 32 We are a specialty formulator that enables many of the world’s products through innovation and custom solutions.

AUTOMOTIVE OEM W A T E R P R O O F S E A L O N A C C E S S O R Y P A R T • FDA food contact compliance • Color match to OEM-specified gray • 70 Shore A durometer for overmolding to PP • Scratch and mar resistance • Provided material compliant with FDA 21 CFR 177.1210 • Supplied both the base resin and at-press colorant to meet OEM specifications • Offered TPV alloy grade that enabled easy processing and durable surface aesthetics • Specified material in North America with design engineers and supplied out of a facility in China to meet production needs Versalloy™ XL Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

AVIENT SOLUTION V E H I C L E B AT T E RY M A N U FA C T U R E R C E L L P A C K C O O L I N G T U B E • Comply with ISO 3384-1:2011 for TPE compression set • Comply with ISO 11359-2:1999 standard for linear thermal expansion • Good ethanediol resistance • Good sealing performance • Customized a Shore 60A hardness TPE formulation with good physical property retention • Achieved good compression set and bonding performance with PA12 • Qualified thermal expansion by customer • Provided excellent ethanediol resistance under both low and high temperature conditions KEY REQUIREMENTS CHEMICAL RESISTANCE + SEALING LEARN MORE OnFlex™ TPE Custom Formulation Copyright © 2023, Avient Corporation.

The loss of a soft-touch feel in thinner overmolds will be especially pronounced in low-durometer materials such as the 3, 13 and 33 Shore A materials shown in Figure 10 . Figure 17 is a bar graph of mass loss for a variety of GLS™ TPE grades according to ASTM D3389 . PRODUCT WITH TPE WITHOUT TPE % CHANGE Tape Measure 20 .99 11 .99 43 Ice Cream Scoop 5 .99 4 .99 17 Shaving Razor 1 .30 0 .75 42 Mechanical Pencil 0 .50 0 .29 48 Cork Screw 7 .99 6 .99 13 Pizza Wheel 6 .99 4 .99 29 Can Opener 8 .99 5 .99 33 Utility Knife 10 .99 5 .79 47 Figure 25: Price comparisons — amounts are US dollars Figure 26: Applying form, color and feel Ergonomic Grip Design Guide 26 ADDITIONAL RESOURCES To learn more about using TPEs to enhance your products, visit the Avient TPE Knowledge Center to find resources including the comprehensive GLS™ TPEs Overmolding Guide and the TPE Injection Molding Guide.

GLS™ TPEs - Injection Molding Guide GLS™ TPEs - Overmolding Guide GLS™ TPEs for soft touch packaging solutions

GLS™ TPEs - Injection Molding Guide GLS™ TPEs - Overmolding Guide GLS™ TPEs for soft touch packaging solutions

GLS™ TPEs - Injection Molding Guide GLS™ TPEs - Overmolding Guide GLS™ TPEs for soft touch packaging solutions

GLS™ TPEs - Injection Molding Guide GLS™ TPEs - Overmolding Guide GLS™ TPEs for soft touch packaging solutions

GLS™ TPEs - Injection Molding Guide GLS™ TPEs - Overmolding Guide GLS™ TPEs for soft touch packaging solutions

GLS™ TPEs - Injection Molding Guide GLS™ TPEs - Overmolding Guide GLS™ TPEs for soft touch packaging solutions