Truck operators are in it for the long haul. Article Rethinking Materials for Automotive Aftermarket Parts Making the switch from metal to plastic using long fiber thermoplastic.

Product + Service Overview Long Fiber Technologies Application Development Avient long fiber technologies application development center bulletin highlighting services including design support, material validation, simulation support, and in-house prototyping.

UHT dairy products require special packaging consideration for long ambient shelf life, which ColorMatrix™ Lactra™ SX Light Blocking Additive can provide as a high-performance light blocking product. Provides high-performance light blocking technology that enables a recyclable alternative to long-life dairy packaging

Brooks Running Company enjoys a long history of keeping customers running longer, farther, faster and free from injury. It didn’t take long for the Glycerin®8 shoe to hit the ground running.

Each cradle brace is a two-foot long, rectangular bar with a “U” shape machined into each end for a metallic insert. The composite parts held up well, and passed stringent standards for long-term performance.

They’re willing to change their shopping habits to reduce environmental impact and they care about sustainability and recycling.” 66% Prefer to buy sustainable products 44% Of consumers are purpose-driven, an all-time high Product-Driven 4% Brand-Driven 15% Value-Driven 37% Purpose-Driven 44% Drivers of Purchasing Decisions Avient Corporation 25 SUSTAINABLY-MARKETED PRODUCTS GROW 2X FASTER 100 110 120 130 140 150 160 2017 2018 2019 2020 2021 2022 Sustainably-Marketed Products vs. Louie LaBonte – Print Specialist, Standards & Capabilities “Avient has been a tremendous long-term partner with IVCC in the development of insecticide treated mosquito nets in the global fight against Malaria.” Plastics Pact Post-Consumer Recycle (PCR) Color Predictive Tool Innovation Award, Winner: Plastics Industry Association Product Technology Innovation, Winner: Plastics Recycling Awards Europe 2023 Additive for Enhanced Recycling Innovation Award, Finalist: Plastics Industry Association Product Technology Innovation, Finalist: Plastics Recycling Awards Europe 2023 Service Innovation Enables Quality Recycle Product Innovation Enables PCR Claims + Low CO2 Product Innovation Protects Quality Recycle …are Growing at Twice the Rate as Conventional ProductsSustainably-Branded Products… Consumers Are demanding recyclability and eco- conscious products Governments Are mandating changes through legislation, taxes, and regional accords STAKEHOLDER INFLUENCE DRIVES DEMAND For Sustainable Products From Sustainable Companies Brand Owners Have committed to ambitious goals to achieve sustainability metrics Avient Corporation 77 Avient Corporation 78 SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 18 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 12% CAGR 3% CAGR Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 11% CAGR 8% CAGR Sources: McKinsey, Bloomberg, Grand View Research Avient Corporation 79 Increasing the use of recycled content Reducing weight to lower fuel consumption 2022 SALESDESCRIPTION $340M $310M $525M OUTCOMES Enabling customers to advance the circular economy Shrinking carbon footprint and decreasing emissions Making our planet a better place for all Using fewer natural resources; protecting human life $1,175MTOTAL SALES SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH AVIENT IS WELL-POSITIONED A Clean House Avient holds leading ratings on ESG matters of importance to customers, countries, and key stakeholders Leading Portfolio Our formulation expertise and materials are meeting the unique sustainability needs of our customers around the world in endless applications 8-12% Long-Term Growth RateAvient’s Sustainable Solutions Investing in Innovation 85% of our opportunity funnel is directed at sustainable solutions addressing unmet customer needs Avient Corporation 80 Avient Corporation 81 ADJUSTED EBITDA MARGIN EXPANSION • Transformative acquisitions combined with divestitures of more cyclical businesses have improved margins over 400 bps since 2018 • 20% long-term margin goal to be driven by key growth drivers, with sustainable solutions playing a meaningful role 5.4% 11.5% 16.0% 17.3% 20% 20.0% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ Community Service 7x Safer than Industry Average World-Class Safety Leadership Development Over $19 million raised since 2007 Diversity & Inclusion PEOPLE AND CULTURE Avient Corporation 82 Avient Corporation 83 • 6% annualized long-term sales growth leveraging sustainable solutions, composites, healthcare, and emerging regions • Expand EBITDA margins to 20% • Deliver annual EBITDA and EPS growth of 10% and 15% • Maintain asset-light, 80% free cash flow conversion profile and be valued as a specialty formulator • Continue fostering our Great Place to Work® culture LONG-TERM OBJECTIVES Avient Corporation 84 Wrap Up and Q + A Bob Patterson Chairman, President, and Chief Executive Officer Avient Corporation 85 Investor Deck_9_19_23 v4_WEBSITE_GAAP.pdf 2023 SR Non-GAAP Rec v3

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Investing in Innovation — Specialty companies invest to grow, so we ensure our resources are concentrated on material science for high-growth end markets, poised for value creation in the long term. Whether it’s an ambitious start-up bringing a new product to market, or a large, multi- national OEM looking for consistency and reliability of global supply, Avient is built for long-term partnerships. It’s important to note that future revenue synergies through increased innovation and commercial excellence are not part of these estimates and will represent additional growth over the long term.

Investing in Innovation — Specialty companies invest to grow, so we ensure our resources are concentrated on material science for high-growth end markets, poised for value creation in the long term. Whether it’s an ambitious start-up bringing a new product to market, or a large, multi- national OEM looking for consistency and reliability of global supply, Avient is built for long-term partnerships. It’s important to note that future revenue synergies through increased innovation and commercial excellence are not part of these estimates and will represent additional growth over the long term.

Investing in Innovation — Specialty companies invest to grow, so we ensure our resources are concentrated on material science for high-growth end markets, poised for value creation in the long term. Whether it’s an ambitious start-up bringing a new product to market, or a large, multi- national OEM looking for consistency and reliability of global supply, Avient is built for long-term partnerships. That’s Avient. 21,000+ CUSTOMERS >75% ARE CUSTOMIZED SOLUTIONS TO UNIQUE SPECIFICATIONS of sales 6 AVIENT’S VALUE CREATION LEVERS 7 Exposure to high growth end markets Investment in commercial resources and innovation Strong free cash flow generation / capital deployment Clariant Masterbatch synergies COVID recovery Re-Rating: Current share price valuation Avient is poised for near-term and long-term shareholder value creation.