Where there is a need for new internal standards or updates to existing ones, working groups comprised of regional and corporate EH&S experts are established. The Board oversees our annual enterprise risk assessment, where we assess key risks within the company, including security.

Advanced Composites Explained Overview of caps and closures key requirements and helpful Avient technologies Overview of key characteristics, markets and applications

Advanced Composites Explained Overview of caps and closures key requirements and helpful Avient technologies Overview of key characteristics, markets and applications

Advanced Composites Explained Overview of caps and closures key requirements and helpful Avient technologies Overview of key characteristics, markets and applications

Our expanding portfolio of offerings includes colorants, advanced composites, functional additives, engineered materials, and Dyneema®, the world’s strongest fiber™. Purpose Innovator of materials solutions to help our customers succeed, while enabling a sustainable world Strategic Approach Intersecting high growth markets and secular trends with our technologies to create product platforms of scale Foundational Strengths Strategic Drivers Unwavering customer focus Global reach with a local touch Diverse technology portfolio Commercial excellence, financial rigor & prudence Culture of safety and sustainability Catalyze the core Build new platforms of scale Portfolio prioritization Amplify Innovation Digital for operational excellence & growth Leadership, talent and culture for the Avient of the future Growing at GDP+ Growing at 10% plus CAGR Our Purpose and Strategic Framework Dear Avient Shareholders, 2024 was a positive year for Avient where our primary focus was on organic revenue growth and margin expansion. Our strategy is enabled by our focus on four Strategic Drivers: portfolio prioritization, amplify innovation, digital for Letter to Our Shareholders20 24 Annual Report | 2024 1 operational excellence and growth, and leadership, talent and culture for the Avient of the future.

Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share and Free Cash Flow, to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. GUIDANCE (TOTAL COMPANY PRO FORMA) 3 $100 $107 Guidance Pro Forma $0.33 $0.42 Guidance Pro Forma Adjusted EBITDA Adjusted EPS (in millions) $200 $293 Guidance Actual Free Cash Flow (in millions) FY 2022 VS. 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 4 Year-End Leverage 3.8x 3.1x 2.9x 2023 Notes After Avient Protective Materials Acquisition $3.15B 2022 TRANSFORMATIONAL PORTFOLIO ENHANCEMENTS 5 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 6 Note: 2022 is pro forma for Avient Protective Materials 2016 Sales 2022 Sales Advanced Composites 51% $560M $1,300M Advanced Composites 9% 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 7 ADVANCED COMPOSITES PERFORMANCE 8 (1) Pro forma for the acquisition of Avient Protective Materials Sales $51 $84 $212 $668 2016 2018 2020 2022 $4 $10 $41 $169 2016 2018 2020 2022 EBITDA (1) (1) ($ in millions) PORTFOLIO EVOLUTION AND EPS EXPANSION 9 Adj.

Syncure™ XLPE Portfolio from Avient Expands with DBDPE-free Flame- Retardant Grades Avient Launches New Stat-Tech™ TPEs & PTFE-Free LubriOne™ Internally Lubricated Formulations at Fakuma 2023 Avient Unveils PTFE-Free and Non-Halogen Flame Retardants for Polycarbonate at Fakuma 2023

Advanced Mobility Advanced Driver Assist Systems Advanced Mobility Composite Structures

Heavy-metal- and cadmium-free Product description, key characteristics, markets & applications

Brooks Running Company enjoys a long history of keeping customers running longer, farther, faster and free from injury. Synergy in concert was the key to success in this application,” said Derek Campbell, Brooks future concepts manager.