In other words, an incredible outdoor experience might mean something entirely different to one adventurer than it does to the next. We’re here to help make each and every experience the best one possible. Your customers deserve the best of both worlds.

A recording of the call will also be available for one week, beginning at Specialty Engineered Materials SEARCH INVESTOR NEWS

Homepage // News Center // Avient to Showcase World’s Strongest Fiber™ and High-Performance Engineered Fibers at Techtextil 2024 Fiber-Line™ Engineered Fibers – These high-performance synthetic fibers are used in diverse products and industries. SEARCH INVESTOR NEWS

Consumer electronic product brands and manufacturers are increasingly searching for material solutions to enhance the sustainability of their products and operations and to meet rising consumer demands,” says Matt Mitchell, global marketing director, Specialty Engineered Materials at Avient. Besides relying on the verified halogen-free technology of all flame-retardant reSound TPEs, Avient’s new low-PCF HFFR formulations include two reSound BIO grades with up to 45% bio-based content and one reSound REC FR grade with up to 30% PCR content. SEARCH INVESTOR NEWS

The best way to keep it, is to protect it. Any such provision is recognized using the Company's best estimate of the amount of loss incurred, or at the lower end of an estimated range, when a single best estimate is not determinable Any such provision is recognized using the Company's best estimate of the amount of loss incurred, or at the lower end of an estimated range, when a single best estimate is not determinable.

Starting with water-clear grades of TPE will generate the best pearlescent and metallic colors. One caveat: Typical TPE shrinkage is around 2% while that of substrate materials is closer to 1%. However, price per pound is just one aspect of the overall cost.

AVIENT OVERVIEW OUR VISION: Creating specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world 2023 Financial GuidanceCompany Overview 2022 Pro Forma Revenue By: 9,700 Employees 104 Manufacturing Sites 20,000+ Customers Key Highlights  Premier formulator of specialized and sustainable material solutions  Asset-light business model, with flexibility to adapt to customer needs  Best-in-class technology and service (140+ PhDs / 2,500+ patents)  History of transformation through successful M&A while consistently returning cash to shareholders  Poised for continued future growth in excess of GDP $3.4B Revenue $2.40 $530M Adjusted EBITDA 15.6% Adjusted EBITDA Margins $200M Free Cash Flow 2.9x Net Leverage Over $1B in share buybacks since 2011 Raised dividend for 12 consecutive years, a 16% CAGR since 2011 Geography Segment Industry U.S. & Canada 64% 36% Specialty Engineered Materials Color Additives and Inks 37% 9% 4% 4% Building & Energy Telecom 4 CREATING A WORLD-CLASS SUSTAINABLE ORGANIZATION 1. 6.5% annualized long term sales growth leveraging sustainable solutions, composites, healthcare and emerging regions 2. FX -11% FX -3% Total Avient -14% YoY Comparison against 2022 pro forma results • Aging infrastructure driving need for greater technological advancements and upgrades • Increased focus on strength and capacity of electrical grid plays into further adoption of composites into the market  UV, weather-resistance, customized capabilities  Best-in-class customer responsiveness  Local high-quality manufacturing, unparalleled breadth of portfolio  Expanding position in insulators, utility poles, crossarms, and wind energy Avient Confidential 16 ENERGY 16 • Fiber-optic investments from AT&T, Corning, Commscope continue to drive industry toward innovation • $42B BEAD program in Infrastructure Bill to increase cable deployments; well-positioned to capitalize on “Made in America” requirement and “last mile” buildout  Flame retardance, weather-resistance enables faster, safer, more reliable connections  Local manufacturing, unparalleled breadth of portfolio  Expanding position in insulation for wire jacketing, 5G buildout TELECOMMUNICATIONS Source: U.S. Three Months Ended March 31, 2023 Three Months Ended March 31, 2022 Reconciliation to Condensed Consolidated Statements of Income $ EPS $ EPS Net income from continuing operations attributable to Avient shareholders $ 20.8 $ 0.23 $ 64.4 $ 0.70 Special items, after tax 22.3 0.24 6.4 0.07 Amortization expense, after-tax 15.1 0.16 $ 10.8 $ 0.12 Adjusted net income / EPS $ 58.2 $ 0.63 $ 81.6 $ 0.89 March 31, Reconciliation of Pro Forma Sales 2023 2022 Sales $ 845.7 $ 892.2 APM pro forma adjustments — 94.9 Pro forma sales $ 845.7 $ 987.1 1 Three Months Ended Reconciliation to EBITDA and Adjusted EBITDA: 2023 2022 Net income from continuing operations – GAAP $ 21.3 $ 64.7 Income tax expense 7.7 20.0 Interest expense, net 28.8 16.9 Depreciation and amortization 50.5 37.6 EBITDA from continuing operations $ 108.3 $ 139.2 Special items, before tax 27.3 6.7 Depreciation and amortization included in special items (1.8) (2.1) Adjusted EBITDA $ 133.8 $ 143.8 Pro forma APM adjustments — 32.0 Pro forma adjusted EBITDA $ 133.8 $ 175.8 Pro forma adjusted EBITDA as a % of sales 15.8 % 17.8 % 2023 2022 Sales: Color, Additives and Inks $ 537.0 $ 649.5 Specialty Engineered Materials 309.7 243.1 Corporate (1.0) (0.4) Sales $ 845.7 $ 892.2 Operating income: Color, Additives and Inks $ 65.6 $ 94.5 Specialty Engineered Materials 43.1 38.3 Corporate (51.6) (30.6) Operating income $ 57.1 $ 102.2 Depreciation & amortization: Color, Additives and Inks $ 25.8 $ 26.0 Specialty Engineered Materials 21.2 7.8 Corporate 3.5 3.8 Depreciation & Amortization $ 50.5 $ 37.6 Earnings before interest, taxes, depreciation and amortization (EBITDA): Color, Additives and Inks $ 91.4 $ 120.5 Specialty Engineered Materials 64.3 46.1 Corporate (48.1) (26.8) Other income (expense), net 0.7 (0.6) EBITDA $ 108.3 $ 139.2 AVNT June IR Conferences w Non GAAP Recs.pdf AVNT Q1 2023 Earnings Presentation.pdf AVNT Q1 2023 Earnings Presentation 5.2 221pm IR Deck - AVNT-2023.03.31 (002).pdf

ColorMatrix™ Lactra™ Four, One, Zero, for dairy contents protection with superior whiteness & low inorganic content Avient Design: This specialized group of industrial designers and project engineers provides critical design and material insights, enabling customers to produce products that are designed with sustainability in mind, are easier to manufacture, and are more competitive. SEARCH INVESTOR NEWS

We identified a growing need for high-density injection molding solutions that will help brand owners, designers, and manufacturers create weighted premium products with more complex designs than possible when using metals, while simultaneously meeting higher demands on impact strength,” says Matt Mitchell, director of global marketing, Specialty Engineered Materials at Avient. As injection molding materials with good flowability, they deliver finished components in one single process step, helping to facilitate easy assembly.” SEARCH INVESTOR NEWS

LIMA, Peru – August 21, 2024 – Today, Avient Corporation, a premier provider of specialized and sustainable materials solutions and services, will exhibit at Expo Plast Peru, one of the most important meetings of the plastics industry in Latin America. Hiformer™ Liquid Masterbatches: offer a unique combination of chemistry, engineering, and customizable colorant and additive solutions for the specific needs of the application that encourages top performance, flexibility, and sustainability for packaging that can help reduce overall carbon footprint SEARCH INVESTOR NEWS