IR Deck - AVNT-2024.06.30 (Earnings) AVIENT CORPORATION S E C O N D Q U A R T E R 2 0 2 4 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) A U G U S T 6 , 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. FX +4.6% FX -1.5% Total Avient +3.1% Note: Regional Sales Percentages exclude impact of foreign exchange Q2 2024 SEGMENT PERFORMANCE ( C O L O R , A D D I T I V E S & I N K S ) $525 $542 Q2 23 Q2 24 $94 $108 Q2 23 Q2 24 19.9% Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 7 17.9% +200 bps * * * Adjusted EBITDA Margin % • Organic sales growth in all regions led by Americas • Raw material deflation combined with cost reduction actions drove EBITDA margin expansion + 3% (+5% excluding FX) + 15% (+17% excluding FX) Q2 2024 SEGMENT PERFORMANCE ( 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 ) $301 $308 Q2 23 Q2 24 $60 $64 Q2 23 Q2 24 20.6% Sales Adjusted EBITDA (in millions) (in millions) Sales Adjusted EBITDA 8 19.8% +80 bps * * * Adjusted EBITDA Margin % • Sales growth in consumer, healthcare and building & construction end markets offset by weaker demand in telecommunications • EBITDA margin expansion driven by positive end market mix as well as raw material deflation + 2% (+4% excluding FX) + 7% (+8% excluding FX) 2 0 2 4 G U I D A N C E FY 20 24 GUIDA NC E Previous (May 7) Current Adjusted EBITDA $510 to $535 million $515 to $540 million Adjusted EPS $2.50 to $2.65 $2.55 to $2.70 Interest Expense $105 million $105 million Adjusted Effective Tax Rate 23% to 25% 23% to 25% Capital Expenditures ~$140 million ~$140 million 10 Q3 2024: Adjusted EPS of $0.62 11 Highlights • Provides performance updates on 2030 Sustainability Goals • Reduced company’s Scope 1 & 2 GHG emissions by 48% since 2019 • Highlights ESG performance ratings, certifications, and awards, including recent upgrades by Ecovadis to Gold and CDP to A- • Reflects Great Place to Work® culture focused on health, safety and employee engagement 20 23 SUSTAI NA BILI TY REPORT 11 Sustainability for a Better Tomorrow 2023 SUSTAINABILITY REPORT 12 • Investor Day to be held December 4, 2024 in New York, NY • The focus will be to do a deep dive on the Company’s strategy • Further details to be communicated 20 24 AVI ENT INVESTOR DAY A P P E N D I X 15 Performance Additives 15% Pigments 13% TiO2 9% Dyestuffs 2% Polyethylene 10%Nylon 5% Polypropylene 4% Styrenic Block Copolymer 4% Other Raw Materials 38% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials RA W MATERI AL BA SKET SEGMENT DATA U.S. & Canada 41% EMEA 36% Asia 18% Latin America 5% 2023 SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 19% Packaging 23%Industrial 16% Building and Construction 9% Telecommunications 4% Energy 5% Defense 7% END MARKET REVENUE $2,007M $358M $1,138M $224M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $502M$3,143M (1) Transportation 10% Healthcare 7% 17 (1) Total company sales and adjusted EBITDA of $3,143M and $502M, respectively, include intercompany sales eliminations and corporate costs 2 0 2 3 R E V E N U E | $ 2 . 0 B I L L I O N US & Canada 34% EMEA 37% Asia 21% Latin America 8% END MARKET REGION 18 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 9% Building & Construction 10% Telecommunications 1% Energy 2% COLOR , AD DI TI VES & INKS 2 0 2 3 R E V E N U E | $ 1 . 1 B I L L I O N US & Canada 52% EMEA 35% Asia 13% 19 Packaging 5% Consumer 16% Healthcare 6%Industrial 16% Transportation 12% Telecommunications 9% Energy 10% Defense 18% Building & Construction 8% END MARKET REGION SPEC IA LTY ENGI NEER ED MATERI ALS Packaging 32% Consumer 26% Healthcare 9% Industrial 13% Building & Construction 6% Telecommunications 2% Energy 2% Defense 1% Asia (18% of sales) Transportation 9% 2 0 2 3 AV I E N T R E G I O N A L S A L E S Packaging 25% Consumer 13% Healthcare 5% Industrial 18% Building & Construction 9% Energy 5% Defense 8% EMEA (36% of sales)Transportation 13% Packaging 13% Consumer 22% Healthcare 10% Industrial 16% Building & Construction 12% Energy 6% Defense 8% US & Canada (41% of sales) Transportation 9% Packaging 59% Consumer 22% Healthcare 2% Industrial 8% Building & Construction 4% LATAM (5% of sales) Transportation 5% Telecommunications 4% Telecommunications 4% 20 B Y E N D M A R K E T 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.

FIBER-LINE™ High Performance Synthetic Fibers PRODUCT SELECTION GUIDE FIBER-LINE™ HIGH PERFORMANCE SYNTHETIC FIBERS Kevlar® Para-Aramid Nomex® Meta-Aramid Vectran® LCP Zylon® PBO Carbon Fiber UHMWPE PET Polyester Fiberglass Novoloid Technora® Filament Yarn TECHNICAL PROPERTIES Standard Modulus High Modulus Standard Modulus Standard Modulus High Modulus Standard Modulus High Modulus Standard Modulus Standard Modulus High Modulus High Tenacity Low Shrink E-Glass S-Glass Standard Modulus Standard Modulus Breaking Tenacity (g/d) 23.0 23.6 5.0 23.0 30.0 42.0 42.0 23.0 28.0 38 9.3 8.4 6.0 - 7.3 6.7 - 9.4 1.5 28.0 Specific Gravity (Ratio) 1.44 1.44 1.38 1.40 1.40 1.54 1.56 1.80 0.97 0.97 1.38 1.38 2.58 2.48 1.27 1.39 Elongation at Break (%) 3.5 2.5 30.0 3.8 2.8 3.5 2.5 1.5 3.5 3.1 14.6 19.5 3.5 5.5 30.0 - 40.0 4.6 Tensile Modulus (g/d) 555 885 125 600 830 1200 1800 1480 850 1250 120 70 200–275 140–170 2.5–5.0 590 Equilibrium Moisture Regain at 55% RH (%) 5.0 5.0 4.5

BHD. 9-3A-1, JLN METRO PERDANA BARAT 1, TMN USAHAWAN KEPONG UTARA, 52100 KUALA LUMPUR WP KUALA LUMPUR A V I E N T C O L O R A N T S M A L A Y S I A S D N . B H D . 2 11 23 12 10 10 1 2 11 22 1 3 10 10 1 SOH SOCK LAN S1189628F 603-62583692 PENGARAH 2 1 09-Jun-2021 440790-X WP KUALA LUMPUR KUALA LUMPUR 5 2 1 0 0 9-3A-1, JLN METRO PERDANA BARAT 1, TMN USAHAWAN KEPONG UTARA,

Medical textile manufacturer MEDICAL TEXTILE MANUFACTURER A A M I S T A N D A R D G O W N S • Water repellent properties for nonwoven fabric • Fast and long-lasting water repellency • Usable in nonwoven SMS spunbond layer • Enhanced liquid repellency in spunbond layer • Eliminated the need for secondary water repellent coatings • Provided long lasting hydrophobic performance • Achieved IPA repellency grade 6 Cesa Fiber Additives Hydrophobic Solutions KEY REQUIREMENTS WHY AVIENT?

STRUCTURAL DECKING R E I N F O R C E D H D P E L U M B E R • Reinforcement to improve strength of HDPE decking • Composite tape compatible with HDPE for strong adhesion • Low thermal expansion • Domestic (U.S.) supply and manufacturing • Added strength to HDPE deck boards to enable industry-leading load capacity and joist spacing spans • Extended product life with superior adhesion of PE tape via co-extrusion • Improved supply reliability with product manufactured in Englewood, CO Polystrand™ unidirectional thermoplastic composite tape KEY REQUIREMENTS WHY AVIENT?

MEDICAL DEVICE MANUFACTURER D I S P O S A B L E M E D I C A L T R A Y • Excellent wear resistance that can sustain a minimum of 2,000 rotations • Withstand freezing temperature as low as -20°C • Can be sterilized by EtO • Delivered excellent wear resistance performance to fully meet customer’s request • Provided dimensional stability required for this medical application • Reduced friction to lower the noise during operation LubriOne™ Internally Lubricated Formulation KEY REQUIREMENTS WHY AVIENT?

SCORPYD™ CROSSBOW I N T E G R A T E D R A I L A N D R I S E R • Reduce weight by replacing aluminum • Integrate bolt rail and riser for supporting limbs into unified assembly • Achieved a 40% weight reduction to improve handling and firing ease • Provided structural design services to create industry-first integrated rail and riser assembly • Conducted FEA performance analysis to confirm long carbon fiber reinforced composite met extreme requirements Complēt™ Long Carbon Fiber ETPU Composite KEY REQUIREMENTS WHY AVIENT?

DENTAL TOOL OEM 3 D D E N T A L S C A N N E R • Achieve accurate color match to non-polysulfone (PSU) components • Must be compatible with hospital disinfectants and survive repeated steam sterilization • Developed precise color match to other resins used in adjacent parts, maintaining accurate brand identification • Provided expertise in pigments and critical color manufacturing for high performance resins • Customized a high-performance solution able to withstand steam sterilization in an autoclave Transcend™ Precolored Gray and Precolored White PSU KEY REQUIREMENTS WHY AVIENT?

H Y D RO P O N I C G ROW I N G S YS T E M B R A N D F L E X I B L E N E C K F O R L A M P • High flow performance capabilities • Beautiful finish • Soft touch • Supported the development process, from initial design to product launch, to meet the needs of both the molder and OEM • Delivered a TPE solution that enabled a 22” flow line with a wall thickness of 0.225” • Provided technical support and shared process best practices to minimize cosmetic defects Versalloy™ XL Thermoplastic Elastomer KEY REQUIREMENTS WHY AVIENT?

WOUND CARE MA NUFAC TURER S E L F - A D H E S I V E B A N D A G E S • Provided aqueous dispersions that are safe for uses in contact with human skin and produce low levels of VOCs • Offered high antioxidant performance to protect bandages from degradation and improve storage time • Collaborated to deliver effectively and efficiently with accelerated development cycles and streamlined operations Aquamix Additive Formulations WHY AVIENT?