This process – rooted in advanced design and detailed analysis of the various polymer matrices available, not just those manufactured by the supplier – fosters innovation and expands opportunities for customers to gain market share. Prototyping combinations of injection molded discontinuous fiber reinforced thermoplastics with CFRTP inserts Ultrasonic welding for inserts

Examples include: • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient is a certified ACC Responsible Care® and a founding member of the Alliance to End Plastic Waste. GUIDANCE DEBT / LEVERAGE REDUCTION • Completed sale of Distribution and paid down $750M of debt in November • Strong free cash flow in fourth quarter reduced leverage and enabled paydown of additional $200M of debt • Fixed/Floating Debt Ratio 63/37 • Proven track record of deleveraging following acquisitions through consistent free cash flow generation $725 $725 $725 $575 $500 $400 $600 $525 $425 $650 $650 $650 $600 $2.40B $2.20B 2030 Notes 2029 Term Loan 2026 Term Loan 2025 Notes After Distribution Divestiture Year-End 8 Year-End Leverage 3.8x 3.1x 2.9x 2023 Notes After Avient Protective Materials Acquisition $3.15B 2022 TRANSFORMATIONAL PORTFOLIO ENHANCEMENTS 9 EBITDA margins expanded from 12% to 16% Diversified end markets with reduced exposure to more cyclical industries Dyneema® Acquisition $1.48B acquisition strengthens composites platform Significantly improved EBITDA margins $950M divestiture results in 100% specialty sales Strong exit multiple of 10x TTM EBITDA despite market volatility Distribution Divestiture Improved Portfolio GROWING COMPOSITES PLATFORM CONTRIBUTIONS TO SEM SEGMENT 10 Note: 2022 is pro forma for Avient Protective Materials 2016 Sales 2022 Sales Advanced Composites 51% $560M $1,300M Advanced Composites COMPOSITES PORTFOLIO D Y N E E M A ® E X P A N D S O U R E N G I N E E R E D F I B E R S A N D T A P E S T E C H N O L O G Y LFT Tapes Laminates/Panels Shapes Pultrusion Engineered Fibers 11 ADVANCED COMPOSITES PERFORMANCE 12 (1) Pro forma for the acquisition of Avient Protective Materials $51 $84 $212 $668 $4 $10 $41 $169 (1) (1) PORTFOLIO EVOLUTION AND EPS EXPANSION 13 Adj.

Each cradle brace is a two-foot long, rectangular bar with a “U” shape machined into each end for a metallic insert.

Using two-shot or insert molding, the material bonds tightly without adhesives to most standard nylons, as well as heat-stabilized, lubricated, glass-filled and impact-modified versions.

Cost savings: Molding the bumpers separately and inserting them into the housing keeps costs down yet provides the seamless appearance of overmolding.

Each cradle brace is a two-foot long, rectangular bar with a “U” shape machined into each end for a metallic insert.

Cost savings: Molding the bumpers separately and inserting them into the housing keeps costs down yet provides the seamless appearance of overmolding.

For general uses such as packaging or recreational products like dive masks and shoe inserts, LSR, prime TPEs, and sustainable content TPEs can be good options.

Advanced Composites Explained Hammerhead Marine Composite Panels - Video Made from continuous glass-fiber reinforced thermoplastic face sheets and polyester foam cores, Hammerhead Marine Composite Panels are engineered to provide simplified installation, long-lasting components, and overall cost reduction for boat manufacturers.

Advanced Composites Explained Hammerhead Marine Composite Panels - Video Made from continuous glass-fiber reinforced thermoplastic face sheets and polyester foam cores, Hammerhead Marine Composite Panels are engineered to provide simplified installation, long-lasting components, and overall cost reduction for boat manufacturers.