AVIENT CORPORATION I N V E S T O R P R E S E N T A T I O N (NYSE: AVNT) N O V E M B E R 2 0 2 3 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. W H AT W E D O : W E A R E A F O R M U L ATO R 6 CUSTOM FORMULATION N O V E M B E R 2 , 2 0 2 3 W E B C A S T P R E S E N T AT 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 C R O S S S E L L I N G O P P O R T U N I T I E S Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations9 10 AVIENT PROTECTIVE MATERIALS C R O S S S E L L I N G O P P O R T U N I T I E S 10 Q 3 P E R F O R M A N C E 15.4% 16.3% 2022 PF 2023 Results vs. Avient reflects 2023 adjusted EBITDA guidance of $500M and estimated run-rate CAPEX of $110M. 2023E (%) 27 78 89 84 82 80 77 88 81 76 70 69 60 54 (6) A vi en t K W R FU L P P G A V Y R P M FM C C E E C L A S H H X L H U N E M N S C L Avient Specialty Formulators Other Specialty / Chemical Companies MULTIPLE EXPANSION Source: Peer data per Bloomberg as of 2023年10月27日 Note: Avient reflects 2023 adjusted EBITDA guidance of $500M and closing share price of $31.18.

The technology addresses the limitations of traditional APET thermoformed cups and containers, which can only be used up to 60°C, by increasing its heat stability to up to 100°C. By extending the use of APET to higher- temperature applications above 60°C, brand owners can access better options that align with their sustainability goals. MARKETS & APPLICATIONS • Thermoformed, APET food packaging, including: - Hot steam sterilization - Hot fill - Microwave use • Polyester • Sheet extrusion & thermoforming KEY CHARACTERISTICS • Suitable for hot steam sterilization, hot fill, and microwave applications • Ideal for food-grade containers with high rigidity and improved gas barrier • Can withstand temperatures up to 100°C • Available in both transparent and opaque options • Processable on existing thermoforming lines with heated molds KEY BENEFITS • A fully circular monomaterial, up to 100% rPET polymer content • Promotion of the circularity of PET and the resulting packaging is possible • Helps customers to comply with the Packaging and Packaging Waste Regulation (PPWR) that demands recyclability of all packaging with binding PCR content targets by 2030 • Demonstrates improved productivity in comparison to CPET during thermoforming • Helps avoid possible EPR fees or penalties on difficult-to-recycle packaging PRODUCT BULLETIN Copyright © 2025, Avient Corporation.

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476CSOPPPFX EPIC 476 C SOPP

MC-87048TPE COOL GRAY 3-C

16550 EPIC RIVAL SPORT VICTORY ANTHRA-C

Geon(TM) MK151-44 Panthers Blue (PB C)

STAN-TONE HCC-36100 NOVA C&W

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