In addition to general presentations, the company will be offering small group tours of its booth and innovation displays beginning

Sulfuric) FIBER-LINE® PROCESS FOR NOVOLOID FIBER • Coating • Twisting • Precision Winding FIBER-LINE® NOVOLOID FIBER PRODUCTS • Packing Yarn • Industrial Fabric Yarn WHY NOVOLOID? MOVING HIGH PERFORMANCE FIBERS FORWARD LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V. ABOUT FIBER-LINE®

FIBERS PROCESSES PRODUCTS MOVING HIGH PERFORMANCE FIBERS FORWARD NOMEX® META-ARAMID WHY NOMEX® META-ARAMID Molecular Structure Chemical Name Poly (meta-phenyleneisophthalamide). NOMEX® META-ARAMID DATA META-ARAMID (HM) BARE FIBER PERFORMANCE * Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes MOVING HIGH PERFORMANCE FIBERS FORWARD ABOUT FIBER-LINE® LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V. For over 25 years, FIBER-LINE® has provided science- driven expertise that improves the performance and the end-use processing of high performance fibers.

WOON KEAT MOH Senior Vice President, President of Color, Additives & Inks Woon Keat Moh (“Moh”) is Senior Vice President and President of Color, Additives & Inks at Avient Corporation, an innovator of materials solutions that help customers succeed while enabling a sustainable world. This has included Sales Director for Avient’s Color and Additives segment in Asia and General Manager of Engineered Materials Asia. Moh also served as Vice President of Asia, where he strengthened a One Avient approach internally and externally with customers, regional leaders and associations, as Avient has invested for growth in Asia.

FIBERS PROCESSES PRODUCTS MOVING HIGH PERFORMANCE FIBERS FORWARD PET POLYESTER WHY PET POLYESTER? PET POLYESTER DATA PET POLYESTER BARE FIBER PERFORMANCE * Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes MOVING HIGH PERFORMANCE FIBERS FORWARD ABOUT FIBER-LINE® LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V. For over 25 years, FIBER-LINE® has provided science- driven expertise that improves the performance and the end-use processing of high performance fibers.

History The mass production of glass fibers first began in the 1930’s. °C TBD FIBERGLASS BARE FIBER PERFORMANCE FIBERGLASS DATA E-Glass S-Glass * Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes MOVING HIGH PERFORMANCE FIBERS FORWARD ABOUT FIBER-LINE® For over 25 years, FIBER-LINE® has provided science- driven expertise that improves the performance and the end-use processing of high performance fibers. LOCATIONS Headquarters, R&D, Manufacturing FIBER-LINE® LLC 3050 Campus Drive Hatfield, PA 19440 +1 215.997.9181 fiber@fiber-line.com Manufacturing Operations FIBER-LINE® LLC 280 Performance Drive SE Hickory, NC 28602 +1 828.326.8700 fiber@fiber-line.com EMEA & Asia Pacific Operations FIBER-LINE® INTERNATIONAL B.V.

Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. 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. In addition, operating income before the effect of special items is a component of Avient’s annual incentive plans and is used in debt covenant computations.

Patterson, Chairman, President, and Chief Executive Officer, Avient Corporation. To access Avient’s news library online, please visit www.avient.com/news. In addition, operating income before the effect of special items is a component of Avient's annual incentive plans and is used in debt covenant computations.

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? AVIENT SOLUTION INCREASED STRENGTH LEARN MORE Copyright © 2021, Avient Corporation. https://www.avient.com/products/advanced-composites/continuous-fiber-composite-tape-laminates-and-barstock/polystrand-continuous-fiber-tapes-laminates

PERSONAL WATERCRAFT OEM S T E E R I N G C O L U M N • Similar strength performance to existing aluminum assembly • Withstand outdoor UV exposure • Weight reduction for improved performance • Corrosion and moisture resistance • Premium aesthetic • Provided a material that met application load requirements and allowed for part consolidation • Delivered confidence in changing material through design consultation, robust FEA support, and UV customization • Incorporated carbon fiber to support a marketing story Complēt™ Hybrid Moisture Resistant Composite KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION PART CONSOLIDATION + DESIGN/FEA SUPPORT LEARN MORE Copyright © 2023, Avient Corporation. https://www.avient.com/products/engineered-polymer-formulations/high-temperature-polymer-formulations/compl%C4%93t-long-fiber-reinforced-structural-thermoplastics