O F F - ROA D V E H I C L E M A N U FAC T U R E R S T R U C T U R A L B O D Y C O M P O N E N T S • Replace metal and consolidate parts • High strength • Structural stiffness • Durability • Reduced manufacturing complexity while maintaining strength • Leveraged Avient Design services to achieve consolidated part design • Conducted mold flow analysis and guided material selection using technical and application expertise Nymax™ REC Recycled Nylon Formulation – ND 1233 Grade KEY REQUIREMENTS WHY AVIENT?

I TA L I A N M O L D E R & PA RT P RO D U C E R L U X U R Y T O O T H B R U S H B A S E • Density 4.0 SG • Low water absorption • Good mechanical performance • Chemical resistance to toothpaste and cleaning products • Worked in close collaboration with customer to fully understand material requirements • Provided an alternative to metal with the processing and recyclability benefits of a polymer • Enabled customer to launch innovative new product into the market winning Red Dot Design Award Gravi-Tech™ Density Modified Formulations KEY REQUIREMENTS WHY AVIENT?

Ext Building Products OEM Application Snapshot E X T E R I O R BU I L D I N G P RO D U C T S O E M S H E E T / P R O F I L E E X T R U S I O N • Source a cost competitive and effective chemical foaming additive (CFA) with prompt availability • Incorporate a CFA lightweighting solution with consistent cell structure and density for better overall operational performance • Improve material usage while manufacturing on both single and twin screw processing equipment • Met customer needs and timing with effective and efficient CFA solutions • Provided formulations that improved the dispersion and efficacy for optimized performance and control in manufacturing • Offered application and processing expertise focused on specific customer manufacturing assets and operations, allowing improved material usage and reduced operational costs Hydrocerol™ and Excelite™ CFAs KEY REQUIREMENTS WHY AVIENT?

C A R C O M P O N E N T M A N U FAC T U R E R A C O U S T I C A N D T H E R M A L M A N A G E M E N T S Y S T E M S • High rPET content without loss of tenacity • High volume production • Color options • Offered a chain extender that supports stable spinning and maintains fiber tenacity to help achieve targeted rPET content • Provided technical support for production scale-up • Proposed different color concentrates suitable for application and polymer grade Cesa™ Fiber Additives – chain extenders for recycled polyester (rPET) KEY REQUIREMENTS WHY AVIENT?

W A L L PA RT I T I O N M A N U FAC T U R E R F O O D P R O C E S S I N G E N V I R O N M E N T S • Decrease growth of microbes on plastic surfaces that come in contact with food products • Compatibility with sheet extrusion processing • Maintain all other functional attributes inherent to product, such as ROHS, flame retardant standards, and specific brand color • Seamlessly incorporated multifunctional additives for optimal performance in reducing microbe growth • Developed custom formulation for complex processing configurations in sheet extrusion technology • Provided expertise in antimicrobial performance, chemical resistance, flame retardance, and regulatory product stewardship Cesa™ WithStand™ Antimicrobial Additives and Smartbatch™ Combination Colorants and Additives KEY REQUIREMENTS WHY AVIENT?

L E A D I N G H O U S E H O L D G O O D S M A N U FA C T U R E R L A U N D R Y D E T E R G E N T B O T T L E • Increase post-consumer recycled (PCR) content to help meet state minimum standards • Improve color consistency to achieve global brand harmony and enhance on-shelf presence • Raised PCR level to 40% of the bottle weight, meeting sustainability goals and minimum PCR content regulations • Reduced thickness of outer bottle layer by 30% while increasing opacity, and removed colorant from middle layer • Delivered improved color consistency • Offered cost savings with a concentrated solution • Deployed on-site scale-up support at all converter locations OnColor™ Polymer Colorants – Super Concentrated Formulation KEY REQUIREMENTS WHY AVIENT?

Bergamid-Racing Wheel-Application snapshot_0429 C O N S U M E R E L E C T RO N I C S B R A N D G E A R O F R A C I N G W H E E L • Achieve high strength and abrasion resistance • Deliver smooth, quiet functionality and minimize backlash for improved control • Delivered glass fiber reinforced nylon formulation to meet the requirements for high strength and abrasion resistance • Offered local service and support, which helped to accelerate production • Provided stable supply despite the nylon shortage issues in the market Bergamid™ Polymer Formulation KEY REQUIREMENTS WHY AVIENT?

Microsoft PowerPoint - AVNT Q4 2023 Earnings Presentation v7 AVIENT CORPORATION F O U R T H Q U A R T E R 2 0 2 3 R E S U L T S A N D 2 0 2 4 F I N A N C I A L G U I D A N C E (NYSE: AVNT) F E B R U A R Y 1 4 , 2 0 2 4 D I S C L A I M E R 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. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 O P E N I N G R E M A R K S DR. ASHISH KHANDPUR P R E S I D E N T & C E O 4 5 PORTFOLIO TRANSFORMATION 5 7% 46% 66% 87% 100% 0% 20% 40% 60% 80% 100% 2005 2010 2015 2020 2023 % o f A dj us te d E B IT D A Commodity JVs Distribution Performance Products & Solutions Specialty Businesses Adjusted EBITDA from Specialty Applications SUSTAINABILITY AS A GROWTH DRIVER 7 LONG-TERM REVENUE GROWTH DRIVERS Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other 60%+ Key Growth Drivers Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other 0–2% Avient 6% END MARKET OBSERVATIONS ( % O F C O M PA N Y S A L E S ) ENERGY 5% DEFENSE 7% TELECOMMUNICATIONS 4% HEALTHCARE 7% 8 TRANSPORTATION 10% INDUSTRIAL 16% BUILDING & CONSTRUCTION 9% CONSUMER 19% PACKAGING 23% 9 REGIONAL OBSERVATIONS ( % O F C O M PA N Y S A L E S ) 9 US & Canada Latin America EMEA Asia 41% 36% 18% 5% Q 4 2 0 2 3 R E S U L T S Q4 2023 PERFORMANCE VS.

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 L Y 2 6 , 2 0 2 2 D I S C L A I M E R 2 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. S E C O N D Q U A R T E R 2 0 2 2 R E S U L T S $122 $134 2021 2022 $0.87 $0.98 2021 2022 Q2 2022 PERFORMANCE ( T O TA L C O M PA N Y ) 4 Sales Adjusted Operating Income $1,235 $1,302 2021 2022 + 5% Adjusted EPS + 10% + 13% (in millions) (in millions) (+ 10% excluding FX) (+ 16% excluding FX) (+ 20% excluding FX) Q2 2022 SEGMENT PERFORMANCE 5 CAI $624 $649 Sales ($ in millions) SEM Distribution $86 $94 Operating Income + 4% + 9% $404 $443 Sales $24 $27 Operating Income + 10% + 13% (1) $241 $244 Sales $37 $37 Operating Income + 1% Flat (+ 10% excluding FX) (+ 16% excluding FX) (+ 6% excluding FX) (+ 3% excluding FX) Q2 2021 $1,235 $122 Sustainable Solutions 17 7% 7 Healthcare 23 14% 5 Composites (ex Outdoor High Performance) 10 20% 4 Growth in Asia / LATAM 5 3% 1 Other 69 11% 5 Sub-total $1,359 10% $144 Outdoor High Performance Impact (9) (5) Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (48) (7) Q2 2022 $1,302 5% $134 Q2 2022 SALES AND OPERATING INCOME ( T O TA L C O M PA N Y ) 6 Sales Growth Rate Adjusted Operating Income$ millions Adjusted EBITDA Q2 EBITDA BRIDGE 7 Price increases more than offsets raw material and supply chain impacts Q2 2021 $ 159 Demand (29) $ millions CAI: Price / Mix 87 Inflation (58) SEM: Price / Mix 36 Inflation (24) Distribution: Price / Mix 45 Inflation (41) Net Price Benefit 45 Wage Inflation and Overtime (7) Other Supply Chain Costs (2) Clariant Color Integration Synergies 7 Incentives, Other Employee Costs 4 FX (7) Q2 2022 $ 170   China Lockdowns / Russia Impact $ (14) Outdoor High Performance (5) Transportation (5)  8 Q2 '21 Adjusted EPS 0.87$ Color, Additives and Inks 0.11 Specialty Engineered Materials 0.01 Distribution 0.03 Corporate Costs 0.01 F/X (0.05) Segment OI 0.11$ Interest Expense 0.03 Tax Rate (0.03) Q2 '22 Adjusted EPS 0.98$ Q2 EPS BRIDGE Key Updates • Provided progress on 2030 Sustainability Goals • Emphasized commitment to U.N. Annual Purchases RAW MATERIAL AND SUPPLY CHAIN UPDATE Based on 2021 purchases, excludes Distribution business SEGMENT DATA U.S. & Canada 50% EMEA 25% Asia 16% Latin America 9% 2021 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 23% Packaging 19% Industrial 16% Building and Construction 10% Telecommunications 4% Energy 2% END MARKET REVENUE (1) Total company sales and adjusted EBITDA of $4,819M and $581M, respectively, include intercompany sales eliminations and corporate costs $2,402M $409M $919M $164M $1,631M $94M Sales EBITDA Distribution Specialty Engineered Materials Color Additives and Inks $581M$4,819M (1) Transportation 11% Healthcare 15% 24 Packaging 34% Consumer 21% Healthcare 8% Industrial 16% Building & Construction 10% Transportation 9% Energy 1% Telecommunications 1% C O L O R , A D D I T I V E S & I N K S 2 0 2 1 R E V E N U E | $ 2 . 4 B I L L I O N US & Canada 32% EMEA 40% Asia 21% Latin America 7% END MARKET REGION 25 All charts reflect 2021 financials S P E C I A L T Y E N G I N E E R E D M A T E R I A L S Consumer 27% Healthcare 10% Packaging 7% Telecommunications 16% Transportation 11% Industrial 11% Building & Construction 11% Energy 7% 2 0 2 1 R E V E N U E | $ 9 1 9 M I L L I O N END MARKET US & Canada 55% EMEA 25% Asia 20% REGION 26 All charts reflect 2021 financials D I S T R I B U T I O N Healthcare 26% Consumer 23% Packaging 5% Industrial 20% Transportation 16% Building and Construction 8% Energy 1% Telecommunications 1% US & Canada 80% Asia 3% Latin America 17% END MARKET REGION K E Y S U P P L I E R S 2 0 2 1 R E V E N U E | $ 1 . 6 B I L L I O N 27 All charts reflect 2021 financials T O T A L C O M P A N Y R E G I O N A L S A L E S B Y E N D M A R K E T Packaging 30% Consumer 26%Healthcare 13% Industrial 14% Building & Construction 5% Telecommunications 2% Energy 2% Asia (16% of sales) Transportation 8% Packaging 32% Consumer 13% Healthcare 5% Industrial 17% Building & Construction 12% Telecommunications 5% Energy 4% EMEA (25% of sales) Transportation 12% 28 Consumer 25% Healthcare 19% Packaging 10% Industrial 17% Building & Construction 10% Telecommunications 4% Energy 2% US & Canada (50% of sales) Transportation 13% Packaging 38% Consumer 33% Healthcare 8% Industrial 10% Building & Construction 5% Telecommunications 1% LATAM (9% of sales) Transportation 5% All charts reflect 2021 financials 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.

P R O F I L E / S H E E T E X T R U D E R R A I L S A N D K I C K P L A T E S • Convert existing PVC profile and sheet rails and kick plates to polyolefin resin to meet Class A fire safety (ASTM E84) • Provide a system that meets healthy building certifications and approvals • Utilize a more sustainable flame retardant technology, removing brominated or halogenated flame retardants from the environment • Achieve non-compromising performance in aesthetics, impact, dimensional stability, CLTE, and E84 testing • Provided broad flame retardant platform, backed by extensive application and industry expertise, to meet global flammability standards • Has largest UL94 recognized Prospector membership with HB, V-0, V-1, V-2 and 5VA/5VB ratings, and broad glow wire performance products • Included in-house UL certified labs and manufacturing locations to perform UL94 material sampling and testing • Supported application development to meet fire safety standards, address current or emerging healthy building codes, smart home requirements, and LEED credits • Offered custom formulations in small lot quantities Cesa™ Flam Non-Halogen Flame Retardants KEY REQUIREMENTS WHY AVIENT?