Learn more on how Avient's innovative dairy packaging solutions can help extend shelf life, block light effectively, enhance bottle performance, and reduce environmental impact. ECCOH™ LSFOH 5983 Formulation provides high ESCR and tear resistance for a power cable jacket

THE IMPACT Using Polystrand composite materials, Flexi-StiX created a high-performing insole capable of returning energy for potentially faster running and improved overall run experience. Beyond running and walking, these insoles can be a game-changer for sports such as basketball, volleyball, tennis, etc. where repeated impacts from jumping and running are prevalent.

Unless otherwise stated, Adjusted Operating Income, Adjusted EBITDA and Adjusted EPS figures included in this presentation exclude the impact of special items as defined in our quarterly earnings releases. Free cash flow conversion calculated as (EBITDA – Capex) / EBITDA HIGH FREE CASH FLOW CONVERSION Avient reflects 2021 estimated EBITDA of $580M and estimated CAPEX of $80M (excludes one-time synergy capture CAPEX of $20M) 86 92 85 82 79 77 74 89 83 82 80 79 79 78 78 72 33 en t (12) Total Enterprise Value / 2021E EBITDA Our current valuation with updated guidance implies an EBITDA multiple that is below specialty formulator peers and the median of other selected chemical / specialty companies. With the Clariant Color business acquisition and divestment of the PP&S business, our exposure is now concentrated in less-cyclical and high-growth markets, with increased geographic diversification and a more specialized portfolio that can significantly expand EBITDA margins. 24 Avient reflects 2021 estimated EBITDA of $580M OUR VALUATION VERSUS PEERS Avient Specialty Other 11.0 18.3 16.3 15.4 14.5 11.6 11.1 36.2 28.0 24.9 13.0 11.5 11.3 10.0 9.2 8.8 7.7 6.7 en t SUMMARY: WHY INVEST IN AVIENT?

      Impact on cost of sales       Impact on operating income Impact on income (loss) before income taxes

The non-GAAP financial measures include: Organic Performance (which excludes the impact of foreign exchange), Adjusted Earnings Per Share, Adjusted EBITDA, Adjusted EBITDA margins, Free Cash Flow and Adjusted Free Cash Flow. EPS $2.66 Copyright © . 2025 4 Key Messages Avient is evolving to its next phase as an innovator of materials solutions to help our customers succeed, while enabling a sustainable world Our primary focus is on organic revenue growth and margin expansion ► intersect secular trends and high growth markets with our technologies ► build businesses in high growthcatalyze growth in our core markets ► hybridization Our strategy is enabled and driven by our focus on (a) portfolio prioritization, (b) amplifying innovation, (c) digital for operational excellence and growth, and (d) leadership, talent and culture for the Avient of the future Copyright © . 2025 5 Our purpose and strategic framework Copyright © . 2025 6 Intersecting secular trends and high growth markets with our technologies to create product platforms of scale Copyright © . 2025 7 Catalyze the core GROW BUSINESS AT GDP + 1. Play bigger and bolder in high growth markets and portfolios supported by secular trends to create product platforms of scale 2.

Since 2013, the executive leadership selects 16–18 high performing, high potential associates each year to participate in the NextGen leadership development program. Such lists include REACH Substances of Very High Concern (SVHC) candidate list, U.S. Polymeric, high molecular weight fluoropolymers are too large to cross biological membranes.

High-Temperature Polymer Formulations Cesa™ Impact Modifiers High Performance Synthetic Fibers

Cesa™ Impact Modifiers High Performance Synthetic Fibers Meet the demands of high-temperature applications with these high-performing formulations

RAIL CAR MANUFACTURER D O O R P A N E L • High stiffness-to-weight ratio and improved thermal insulation to incumbent materials • Efficient manufacturing process to ensure quality panel construction and standards • Domestic supply and manufacturing to ensure timely delivery • Reduced component complexity compared to metal • Custom-engineered panel with varying core materials and thicknesses to meet performance requirements • Reliable material supply with product manufactured in United States CRTM™ Composite Sandwich Panels KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION CORROSION & IMPACT RESISTANT LEARN MORE Copyright © 2024, Avient Corporation.

BIOPHARMACEUTICAL SUPPLY COMPANY T U B I N G C L A M P • High impact and wear resistance • Low moisture uptake • Comparable dimensional stability to nylon • Eco-conscious alternative to PA66 and PA6 • Delivered a comparable alternative to nylons during supply shortages, resulting in rugged performance and a lower carbon footprint • Provided improved chemical resistance to nylon clamps to withstand repeated cleanings from harsh disinfectants • Offered a global manufacturing footprint to support future expansion of the end products to markets outside the Americas Trilliant™ HC 8910 Glass-Filled Polyketone Thermoplastics KEY REQUIREMENTS WHY AVIENT AVIENT SOLUTION DURABILITY + MATERIAL AVAILABILITY LEARN MORE Copyright © 2023, Avient Corporation.