PROCESS OVERVIEW Polystrand™ advanced thermoplastic composites combine high strength, unidirectional, continuous fibers with engineered thermoplastic resins to create continuous fiber reinforced thermoplastic (CFRTP) materials that feature exceptional strength-to-weight ratio and high impact resistance. Overmolding integrates Polystrand tapes and multi- ply laminates into traditional thermoplastic molding processes, such as injection and compression molding, to create locally-reinforced, molded components. Overmolding with Polystrand™ Continuous Fiber Reinforced Thermoplastic Composites Processability Meets Performance Overmolding with Polystrand CFRTP can enhance the performance of traditional thermoplastics or enable metal replacement in a wide range of applications.

Thermoplastic Composite Innovation Cell Injection and Compression Overmolding HARNESS THE VERSATILITY Are you working on a project that would benefit from added reinforcement, reduced weight, material reduction or part consolidation? CAPABILITIES • Prototype part sampling • Tooling validation • Process optimization • Material configuration • Application development support • Laminate analysis • Mechanical system analysis • Resin flow with laminate inserts • Finite Element Analysis EQUIPMENT SPECIFICATIONS Injection Molding • Milacron-Fanuc Roboshot α-S15OiA with 4-axis robot • Maximum shot capability at 171 grams with a clamping for 198 tons • Trial molds include a 4"x6" flat plaque and a 3"x10" hat stiffening member Compression Molding • 450 ton down acting press • 39" x 39" platen size • Features automatic shuttle table with IR preheat oven Material Testing • Instron Model 5982 Universal Testing System with 100 kN load capacity • AVE2 non-contacting video extensometer with digital image correlation capability • Environmental chamber that enables testing from -150° to 350° C PRODUCT BULLETIN PROCESSABILITY MEETS PERFORMANCE Polystrand™ advanced thermoplastic composites combine high strength, unidirectional, continuous fibers with engineered thermoplastic resins to create continuous fiber reinforced thermoplastic (CFRTP) materials that feature exceptional strength-to-weight ratio and high impact resistance. Through injection or compression overmolding, composite tapes and multi- ply laminates are integrated into traditional thermoplastic molding processes to create locally-reinforced, molded components.

GLS TPEs for Automotive HVAC Seals: improves driver and passenger safety and comfort with industry-leading TPE technology that has been proven to reduce volatile organic compounds (VOCs) by 50% and fogging by 35% versus existing TPEs for heating / ventilation / air conditioning applications.

FireCon™ THERMOPLASTIC CPE-A PROCESSING GUIDE General Extrusion Guidelines FireCon™ Thermoplastic CPE-A is a flexible thermoplastic chlorinated polyethylene blend designed for industrial instrumentation, power, and control cables.

Long Fiber Thermoplastics (LFT) for Brackets and Latches Unlock opportunities for cost savings, lightweighting, & production efficiencies Brackets and latches are traditionally made of cast aluminum or stamped steel. Long fiber thermoplastics (LFT) combine the structural integrity of metals with the lighter weight and cost-effectiveness of thermoplastic composites.

Streamlined organization with fewer business units to reduce internal complexity and better serve customers Engineered SEGMENT STRATEGIC REVIEW Copyright © . 2024 40 Go-to partner for engineered material solutions to meet our customers’ most challenging applications Specialty Engineered Materials – an overview 44% 56% by business unit Engineered Composite 55% 32% 13% Americas Europe, Middle East, Africa $1.1B Product portfolio offers customized solutions to serve a range of end markets • Defense • Energy • Healthcare • Building & Construction • Transportation • Telecommunications • Specialty Consumer • Industrial • Packaging Copyright © . 2024 41 Engineered materials Strength, stiffness Durability Purity Elasticity Fire retardancy Barrier properties Conductivity Color and UV stability Sustainability Processing ease Healthcare devices Semiconductor manufacturing Transportation TelecomWire and cable solutions Consumer goods Copyright © . 2024 42 Composite materials Engineered fibers Tapes, fabrics Laminates, panels Pultruded components Shapes Long-fiber thermoplastics Fiber optic cables Electrical infrastructure Ballistic protection Outdoor high performance Trucks, rail, RV Composite lumber 43Copyright © . • New growth opportunities in prefabricated / modular construction - driven by lightweighting, waste reduction, and energy efficiency • Avient differentiation is with operational velocity, manufacturing capability and added functionality with flame retardancy vital to this space $20B ADDRESSABLE MARKET Ballistic-resistant Composite lumber reinforcement Functional panels - interiors and exteriors Fire-retardant thermoplastic panels Copyright © . 2024 49 • Increasing electrification demands, expanding grid • Established Avient portfolio in electrical infrastructure • Demand driven by aging electrical infrastructure and grid hardening incentives (e.g. 170 million wood poles over 50 years old in North America) • Creating opportunities in all infrastructure components • Avient differentiation is with operational velocity, manufacturing capability and added functionality with flame retardancy, UV resistance etc $8B ADDRESSABLE MARKET Cross arms Turbine blade stiffeners Utility poles Insulator rods Copyright © . 2024 50 Specialty Engineered Materials – end markets we serve Healthcare Defense Energy Industrial Telecom Transportation ConsumerPackaging Building and Copyright © . 2024 51 Our competitive advantage Breadth and depth of specialty solutions Global footprint with localized customer intimacy Manufacturing and material formulation expertise Quality, regulatory, and sustainability • Engineered thermoplastics, advanced elastomers, additives, fibers, composites • Unidirectional tapes, fabrics, panels, pultrusions, shapes • Operations in Americas, Europe and Asia • Source materials globally, translate across regions • Deep application knowledge and design services • Core competencies in fiber, tape, composite lamination and pultrusion processes • Strong material science expertise to address needs • Strong regulatory and quality management systems • Industry accredited sites • Recognized sustainability ratings Copyright © . 2024 52 Margin expansion opportunity SEM margin expansion +300bps margin expansion • Organic volume growth and SG&A efficiencies from prioritizing resources • Increased sales in higher margin growth platforms such as composites and healthcare Productivity • Yield improvement • Raw material harmonization • Supply chain optimization 53Copyright © .

REDUCED WEIGHT 40–50% weight reduction when switching from metal, portability SOLUTION: Long carbon fiber reinforced composites SUSTAINABILITY PIR/PCR content incorporation SOLUTION: Recycled content long fiber thermoplastics STRENGTH IN EXTREME ENVIRONMENTS High strength-to-weight ratio, high and low temperature performance SOLUTION: Long carbon fiber reinforced composites CORROSION RESISTANCE Metal replacement, eliminate secondary operations, slow moisture uptake SOLUTION: Moisture resistant long fiber reinforced nylons ELECTRIFYING STRENGTH Ignite a passion for exploration and push the boundaries of durability with long fiber thermoplastic technology for bikes, engineered to excel in extreme challenges! BATTERY RANGE EXTENSION Lightweighting SOLUTION: Long fiber reinforced polyketone (PK) thermoplastics © 2023, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-rec-formulations https://www.avient.com/products/long-fiber-technology/long-fiber-technologies/compl-t-rec-formulations https://www.avient.com/products/long-fiber-technology/complet-moisture-resistant-nylons https://www.avient.com/products/long-fiber-technology/complet-moisture-resistant-nylons

PolyOne Acquires Certain TPE Assets from Kraton... Investor FAQ

TRILLIANT™ XR Thermoplastics for Radiation Shielding Trilliant™ XR thermoplastic solutions provide a radiation-shielding alternative to the use of lead in healthcare imaging equipment. Trilliant XR radiation shielding thermoplastics are excellent alternatives to lead. Inherently, thermoplastics offer exceptional design freedom for complex parts.

Specifically, these additives have been proven to be effective inhibiting E. coli and MRSA across these resins: • TPE/TPU • PET • HDPE • ABS • POM • PP • PC Custom formulations can be validated for various resin types, and under specific processing conditions, at an independent testing lab to ensure results in commercialization.