They are constructed from layers of 0°/90° woven E-glass fiber reinforcements combined with a proprietary resin system in a continuous pultrusion manufacturing process.

Characteristic GlasArmor Thermoset Panels ThermoBallistic Thermoplastic Panels Steel Concrete Performance-to-Weight            Bullet Resistance – Pistols           Bullet Resistance – Rifles    NA1     Temperature Performance        2         UV Resistance       3         Electrical Conductivity              Flame Retardance    5   4         Ease of Installation             1 Ballistic resistance to rifle fire can be achieved by layering ThermoBallistic and GlasArmor panels – contact Avient 2 ThermoBallistic panels made with polypropylene resin systems 3 UV resistance is achieved using surface polymeric films 4 Flame retardant additives can be incorporated upon request under some circumstances 5 Fire rated for 1-hour per ASTM E-119-09c when tested in an interior wall system Compare the different materials used for ballistic protection https://go.avient.com/BallisticProtection?

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 11 21 23 PM AV FM Avient Historic Multiple Avient Specialty Other Specialty / AP P E N DI X 30 Performance Additives 16% Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer 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% 37% 18% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 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% 38% END MARKET REGION 33 34% 21% Building & 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 BILLION US & Canada 52% 35% 34 19% 8%Industrial 16% 9% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 7% 56% 23% 7% Building & 1% LATAM (5% of sales) 3% 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.

DENSO M E C H A N I C A L H V A C D O O R F L A P • Processability was key as the part had to be injection compression molded due to its extremely thin nature • Copper resistance • Light weight • Anti-static • Low VOC • Worked in close collaboration with the customer to understand key design challenges and needs • Streamlined the development process through global presence, working locally in Europe while also running trials in Asia • Re-designed the part to provide a 90% weight reduction • Utilized material science expertise to create a custom formulation that improved resistance to copper deposits and enabled injection compression molding Customized Maxxam™ Formulation KEY REQUIREMENTS WHY AVIENT?

BABY BOTTLE MANUFACTURER I N F A N T M I L K B O T T L E S • Compliant with FDA food contact and China National Standard GB 9685 • Able to withstand repeated steam sterilization • Transparent for more pleasing appearance and easy identification of measurement lines • Good impact resistance • Developed formulation to comply with both FDA and GB 9685 • Provided material able to withstand repeated steam sterilization and maintain excellent mechanical performance • Achieved a more pleasing color and clarity to enhance measurement lines • Met the need for impact resistance Colorant Chromatics™ PPSU Precolor KEY REQUIREMENTS WHY AVIENT?

Case Study - ColorMatrix Impress rPET Bottle vF PDF © 2019, All Right Reserved PolyOne Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 BOTICÁRIO C O S M E T I C P A C K A G I N G • Cosmetic bottle packaging colorant designed to help distinguish product on the shelf • Compatible with sustainable packaging material to enable use in rPET technology • Brand-specified color • Local material development support • Achieved brighter color and more brilliant metallic effect than alternative colorants • Developed for use in 10% recycled rPET bottle • Formulated custom liquid colorant on-site and matched to brand color standard ColorMatrix™ Impress™ High Gloss Metallic Effect Colorants liquid color for bottle packaging KEY REQUIREMENTS WHY POLYONE?

Name of topic CABLE PRODUCER P H O T O V O L T A I C C A B L E • Simplified supply chain and inventory by providing one solution for both insulation and jacket coating • Provided a material that gave cable a good surface finish and improved cable life time value (passed Arrhenius life time prediction as per IEC 60216-1 in internal lab test) • Reduced catalyst dosage resulting in lower material cost • Improved customer processing speeds • Enabled flame retardant performance to EN 50618 and IEC 60332-1 standards on complete cable ECCOH™ XL 8148 + ECCOH XL CAT 005 Formulations KEY REQUIREMENTS WHY AVIENT?

PIPE & FITTINGS MANUFACTURER W A T E R / F L U I D D I S T R I B U T I O N • Suitable for PP-R and PP-RCT • Specific color targets for external and inner layers • Improved resistance to chlorine for the inner layer • Food contact approval for the inner layer • Batch-to-batch consistency • Matched color references in concentrates suitable for PP-R and PP-RCT • Developed custom colorant/antioxidant combination masterbatch with high resistance to chlorine and food contact approval for the inner layer • Ensured batch-to-batch consistency for sustained performance Color concentrates and color/antioxidant combination masterbatch KEY REQUIREMENTS WHY AVIENT?

SECURITY EQUIPMENT MANUFACTURER B O D Y S C A N N E R • Replace PMMA based radome material • Consistent dielectric performance across large sheet/surface area (4mm thick, 2m high) • Ultra low losses • No defects across full surface area • High resolution imaging to show small illegal objects • Formulated a custom material to match customer requirements • Reduced dielectric loss to 0.0009 • Improved image quality of body scanner with uniform dielectric performance and exceptionally low losses • Enabled scan time of 2 seconds and person throughput of 400 persons per hour, compared to 100 person throughput of conventional devices PREPERM™ PPE 260 Formulation KEY REQUIREMENTS WHY AVIENT?

LAWN & GARDEN OEM F A N F O R B L O W E R / V A C U U M • Lighter than incumbent magnesium part to improve start- up efficiency and enhance overall user experience • High impact resistance to withstand the effect of fast- moving landscaping debris • Good dimensional stability to meet tight tolerances of assembly • Expertise to guide next-generation product development • Proved material performance success through extensive Mold Flow and FEA simulations to prove concept without prototyping and minimize development costs • Produced material globally to support regional demands • Referred customer to US-based dependable mold shops to support local production Complēt™ MT 40% Long Glass Fiber Impact Modified Formulation KEY REQUIREMENTS WHY AVIENT?