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T448.6 PFA P-62X CMPD PRECOL BLUE

Avient corporation first quarter 2023 results AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) J A N UA RY 2 0 2 4 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. WHAT WE DO: WE ARE A FORMULATOR CUSTOM FORMULATION 6 N OVE MBE R 2 , 2023 W E BCAS T P RE S E N TAT I O N Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 8 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations9 10 AVIENT PROTECTIVE MATERIALS CROSS SELLING OPPORTUNITIES 10 Q 3 P E RFO RMAN CE 15.4% 16.3% 2022 PF 2023 Results vs. Avient 2011, 2018 and 2021 multiples reflect trailing 12 months EBITDA at December 31. 28 EV / 2023E EBITDA 6.5 8.5 11.0 10.8 16.1 15.5 14.1 14.0 10.3 21.0 19.0 14.3 12.1 11.8 11.7 11.5 9.7 20 11 20 18 20 21 20 23 R PM AV Y PP G KW R FU L EC L H XL SC L C E FM C AS H H U N EM N Avient Historic Multiple Avient Specialty Formulators Other Specialty / Chemical Companies AP P E N DI X 30 Performance Additives 16% Pigments 12% TiO2 10% Dyestuffs 2% Polyethylene 11% Nylon 6% Polypropylene 5% Styrenic Block Copolymer 5% Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 40% EMEA 37% Asia 18% Latin America 5% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Consumer 20% Packaging 24% Industrial 15% Building and Construction 10% Telecommunications 4% Energy 4% Defense 6% END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) Transportation 9% Healthcare 8% 32 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 BILLION US & Canada 34% EMEA 38% Asia 20% Latin America 8% END MARKET REGION 33 Packaging 34% Consumer 21% Healthcare 8% Industrial 15% Transportation 8% Building & Construction 11% Telecommunications 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 BILLION US & Canada 52% EMEA 35% Asia 13% 34 Packaging 5% Consumer 19% Healthcare 8%Industrial 16% Transportation 10% Telecommunications 10% Energy 9% Defense 15% Building & Construction 8% END MARKET REGION SPECIALTY ENGINEERED MATERIALS Packaging 32% Consumer 27% Healthcare 8% Industrial 14% Building & Construction 5% Telecommunications 3% Energy 1% Defense 1% Asia (18% of sales) Transportation 9% 2022 PROFORMA AVIENT REGIONAL SALES Packaging 27% Consumer 14% Healthcare 5% Industrial 17% Building & Construction 10% Energy 5% Defense 8% EMEA (37% of sales)Transportation 11% Packaging 13% Consumer 24% Healthcare 12% Industrial 15% Building & Construction 13% Energy 5% Defense 5% US & Canada (40% of sales) Transportation 7% Packaging 56% Consumer 23% Healthcare 4% Industrial 7% Building & Construction 4% Telecommunications 1% LATAM (5% of sales) Transportation 5% Telecommunications 3% Telecommunications 6% 35 BY END MARKET 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.

REP A NR 2394/2011 NOTARIUSZ ANNA KOPCZYŃSKA KANCELARIA NOTARIALNA W ŁODZI - ZMIANA §§ 4, 7, 8, 9, 11 UST.2 PKT G; NOWY § 11 UST.2 PKT H; ZMIANA NUMERACJI PKT-ÓW: H,I,J,K,L W § 11 UST.2 NA PKT:I,J,K,L,M; ZMIANA § 11 UST.2 I 5, ZMIANA NR §11A NA § 12 I ODPOWIEDNIA ZMINA NUMERACJI KOLEJNYCH PARAGRAFÓW; ZMIANA §§: 12, 13 UST.1,2,4,5; USUNIĘCIE § 13 UST.6; ZMIANA § 14 UST.2 I § 15; USUNIĘCIE § 16 UST.2, § 18 UST.1 UMOWY SPÓŁKI 4 11.06.2012R.

P O L Y O N E A N N U A L R E P O R T 2 0 15 OUR PEOPLE. Powell /S/ KERRY J. CHRISTOPHER J.

KEY PERFORMANCE PROPERTIES1 PHYSICAL NOMINAL VALUE UNIT TEST METHOD Density/Specific Gravity 1.00 ASTM D792 Melt Mass-Flow Rate (MFR) (230°C/2.16kg) 20 g/10 min ASTM D1238 MECHANICAL Tensile Strength 15.0 MPa ASTM D638 Flexural Modulus 1400 MPa ASTM D790 Flexural Strength 35.0 MPa ASTM D790 IMPACT Notched Izod Impact (Injection Molded) 150 J/m ASTM D256 ELECTRICAL Surface Resistivity < 100000 ohms/sq ASTM D257 PROCESSING INFORMATION INJECTION NOMINAL VALUE UNIT Drying Temperature 80 to 90 °C Drying Time 4.0 to 6.0 hr Processing (Melt) Temperature 220 to 250 °C Mold Temperature 30 to 80 °C Trilliant™ HC Electrically Conductive Formulations for Precision Performance Pipette Tips A critical design consideration for pipette tips is the accurate measurement of finite amounts of liquid.

PRODUCT BULLETIN PROPERTY TEST METHOD TYPICAL VALUE (ENGLISH) TYPICAL VALUE (SI) Specific Gravity ASTM D-792 11.0 11.0 Tensile Modulus1 ASTM D-638 1.20E+6 psi 8270 MPa Tensile Strength1 (Yield) ASTM D-638 3,950 psi 27.2 MPa Flexural Modulus ASTM D-790 800,000 psi 5520 MPa Flexural Strength ASTM D-790 7,000 psi 48.3 MPa Notched Izod Impact2 ASTM D-256A 2.1 ft•lb/in 110 J/m Deflection Temperature Under Load 66 psi (0.45 MPa), Unannealed, 0.250 in (6.35mm) ASTM D-648 280°F 138°C Deflection Temperature Under Load 264 psi (1.8 MPa), Unannealed, 0.250 in (6.35mm) ASTM D-648 190°F 87.8°C TECHNICAL PROPERTIES 1 Type I, 0.20 in/min (5.1 mm/min) 2 73°F (23°C), 0.125 in (3.18 mm), Injection molded www.avient.com Copyright © 2020, Avient Corporation.

P ri nt o r ty p e. S ee S p ec ifi c In st ru ct io ns o n p ag e 3. 1 Name (as shown on your income tax return). Enter the tax classification (C=C corporation, S=S corporation, P=Partnership) ▶ Note: Check the appropriate box in the line above for the tax classification of the single-member owner.

Beaumont, John P. Beaumont, John P., R. Osswald, Tim A., Lih-Sheng Turng, and Paul J.

J. CHRISTOPHER J. Jellison, Kerry J.