M1426 V DK PEWTER 642 H INCREASED MR PP FR 8-6 LMS-1000

DNU MNE31-21-2 BLACK DNU V6031-70 WHITE RIGID MOLDABLE PP FR 8-6 LMS-1000

83701609 STATIC DISSIPATIVE FR Geon(TM) DB4772 NEUTRAL 70 DURO PP FR 8-6 LMS-1000

C a s e S t u d y T h e P D I D i f f e r e n c e Characterizing the polymer’s viscoelastic properties under conditions that simulate the human body helped PDI to predict creep performance, which identifies the measurable strain put on a polymer over a given period of time. S i t u a t i o n Designers at AxioMed Spine Corp. seized an opportunity to create a revolutionary replacement disc for the spine, which they call the Freedom® Lumbar Disc. D e l i v e r i n g R e a l - Wo r l d R e s u l t s Research, development, and optimization of the Freedom® Lumbar Disc will help millions of patients across the world suffering from chronic back pain.

GLs Th Derisn and manufa.luro ot Themopl 鏖锺燠 嬲 黜社璐黜 鑫嚣 山 Ⅱ 汹 ‘ 巾 ¨ 帧 Ⅱ 妒 舳 "0“ 岫 枷 啕 、 WⅡ ′ l黜嬲 獭 嫩 泛Oa ν 北 濒 ㈨ |● ,‘烹钔 △ 叻 “ ∞ ·Ⅱ ·酉雨 ● 莎 ●●幽 N"● `约 t艹 9△ ●o灬● 矿 ●食⒋ 1 1∞ E) 0HsAs1 8001∶ oo ” ··Ⅱ "硫 ,kⅡ 0,Ⅱ Ⅱ官● Th$Ced lc仓 怡 s Vεl|】0m24"ay 19 and remans rald suoJe4 oe6ld e θv |‘ r$σ ⒑ ∞ | ay2 邳 2 邳 2 ∞ i ∞ 1θ o7 u‘ Ci^⒉ ●|m 0| Rec仓雨 怆a】 on a刂 dl |$s刂 ε‘ Ce雨Πe· Mu "忉 Ⅱ 9● 仓H sA Cssn∞ 2‘ s‘ sε ‘ir st铜 ●芮 i∝ 柿 k蓟 铷 i∽ C◇ i9F0官 "● ″ 灿 "证 i0"● 卸 N● 邪 ●●讧Ⅱm | 启●I● | PR 忄“ | i祁|"阳 翎 ,确 ‘ ∫“ |( ")‘ “ ⒊a12i、 ●息*W ●内 督 此 `Ⅱ 书 吉力士热塑混合材 oHsAs1 8001∶ J`囤 区吸菏 中国江讪 i ⒍0⒌⒉ 工 2 灼⒈ "市 核 ⒛ 彳⒐0冫19 亦 "llj″ 热塑性 ∶链体的设讠及和 该证l‘ 的有效丿”ti⒛ 丿颐 经过符个少水 彳90 2$ 效 行 I讪 0i, }泞 眦H煳 2 o⒎o ⒉ I‘ "4I公 △‘j(讧 Ⅱ‘ ^灬 贩 两 `￠ 灬 ●Ⅱ ’、奥 Ⅱ‘‘ |Ⅱ ● "“ Ⅱu● ="∮ `Ⅱ ● △ ● Ⅱ ‘ "40南 ∵ 1|● ‘、W 炉 9彳 Ⅱ1△ ● 礻i 品 讨 缃 社 锣 珊 号 γ 猢 扌 弟 !

Soft-touch TPEs make it happen, letting you improve the grip of SUP paddle t-handles, for example, or cushion kayak seats and thigh braces.

OnColor™ REC Polymer Colorants OnColor™ REC Polymer Colorants are derived from recycled content, making them a sustainable alternative to concentrates using virgin carbon black. They can reduce environmental impact compared to traditional carbon black formulations, allowing the use of less energy and water during the manufacturing process and thereby helping to reduce product carbon footprint (PCF). KEY CHARACTERISTICS • Derived from recycled content including end-of-life tires • Available for multiple resins and custom solutions • Retains performance characteristics of traditional carbon black in plastics • Passes REACH and RoHS requirements • Prop 65 letters available • Certified by TÜV Rheinland • PCF calculation available on request MARKET AND APPLICATIONS OnColor REC Polymer Colorants are sustainable solutions across a wide variety of industries and applications, including: • Automotive • Wire and cable • Building and construction • Appliances • Electrical and electronics • Industrial molding applications • Office furniture 1.844.4AVIENT www.avient.com Copyright © 2024, Avient Corporation.

In all aspects, they remain true to their “Designed by Snowboarding” philosophy to make riding more fun—and their newest binding entry, the Rome Black Label highback, is no exception. In creating the Black Label, Rome sought to add a premium highback to their binding collection that would be flexible and durable, providing highly responsive performance in an ultra-light, high-tech binding. THE IMPACT The injection-overmolded Polystrand composite construction in Rome’s Black Label binding is the first of its kind in the industry.

AVIENT CORPORATION T H I R D Q U A R T E R 2 0 2 3 R E S U L T S (NYSE: AVNT) N O V E M B E R 2 , 2 0 2 3 D I S C L A I M E R Forward-Looking Statements Certain statements contained in or incorporated by reference into this presentation constitute “forward-looking statements” within the meaning of the Private Securities Litigation Reform Act of 1995. Additionally, Adjusted EPS excludes the impact of special items and amortization expense associated with intangible assets. 2 O P E N I N G R E M A R K S B O B P A T T E R S O N C H A I R M A N , P R E S I D E N T A N D C E O Complementary technologies and customer relationships offer opportunity to advance commercial strategy Dyneema®, the world’s strongest fiber™, to accelerate growth of sustainable, ultralight and high performance applications AVIENT PROTECTIVE MATERIALS FIRST YEAR 4 Composites comprises over half of Specialty Engineered Materials, compared to 9% in 2016 Proven history of success in areas such as outdoor high performance, defense and sustainable solutions Composites 44% 56% 2023E Sales Collaboration & InnovationComposites as a % of SEM People & Culture Talented, passionate, and creative associates drive continued integration success and allow two cultures to come together as one Avient Lightweight Protective Laminates: PROJECTILE PROTECTION Dyneema® Fiber Solutions Cushioning + Fit + Comfort: LONG-TERM WEAR reSound™ Versaflex™ Thermoplastic Elastomers Strength + Durability + Light-Weighting: SOLID MOUNTING BRACKETS Nymax™ Bergamid™ Complēt™ Engineered Materials Durability + Lubricity: HELMET LATCHES Lubri-One™ Internally Lubricated Polymers Color Consistency and Weatherability CUSTOMIZED SPECIFICATIONS Avient Color and Additive Solutions Antennae Performance FAST, RELIABLE CONNECTIONS PREPERM™ Low-Loss Dielectric Thermoplastics AVIENT PROTECTIVE MATERIALS C R O S S S E L L I N G O P P O R T U N I T I E S Wired Connections CONSTANT COMMUNICATION Syncure™ Cross-linkable Wire & Cable Formulations5 6 AVIENT PROTECTIVE MATERIALS C R O S S S E L L I N G O P P O R T U N I T I E S 6 Q 3 P E R F O R M A N C E 15.4% 16.3% 2022 PF 2023 Results vs. PRIOR YEAR $790 $710 2022 2023 $107 $112 2022 2023 Sales Adjusted EBITDA (in millions) $0.42 $0.47 2022 PF 2023 Adjusted EPS (in millions) - 10% + 5% + 12% Sales Adjusted EBITDA Adjusted EPS 12 $112 $500 Q4 FY $0.47 $2.30 Q4 FY Q4 AND FULL YEAR 2023 GUIDANCE $710 $3,130 Q4 FY Sales Adjusted EBITDA Adjusted EPS 13 (in millions) (in millions) Guidance: Free Cash Flow $180 $180 Prior Guidance Guidance FREE CASH FLOW & INCREASED DIVIDEND 13th Consecutive Dividend Increase 0.16 0.26 0.42 0.58 0.79 0.85 0.99 1.03 2011 2013 2015 2017 2019 2021 2023 2024 14 S U S T A I N A B I L I T Y D AY R E C A P SUSTAINABILITY AS A GROWTH DRIVERLONG-TERM REVENUE GROWTH DRIVERS 60%+ Key Growth Drivers Sustainable Solutions Composites, Healthcare, Asia / LATAM Overlap Other (GDP Growth) Total Company Revenue Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Composites 8–10% Healthcare 8–10% Asia / LATAM 5% Other (GDP growth) 0–2% Avient 6% 17 SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 8-12% Long Term Growth 50 90 2022 2030 Medical Plastics Market Size (in $Billions) 2020 2030 Recycled Plastics Virgin Plastics Growing Demand for Recycled Content Avient Sustainable Solutions 18 46 2023 2032 Global Offshore Annual Wind Installations (in Gigawatts) Sources: McKinsey, Bloomberg, Grand View Research SUSTAINABILITY TRENDS DRIVE LONG-TERM GROWTH 18 • 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% 2006 2018 2023E Recovery Growth Drivers Strategic Objective 20%+ +1%+ +3%+ ADJUSTED EBITDA MARGIN EXPANSION 19 • 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 CRE AT ING A WORL D-CL AS S S US TAINABL E ORGANIZ AT ION 20 Reconciliation of Non-GAAP Financial Measures (Unaudited) (Dollars in millions, except for per share data) Senior management uses comparisons of adjusted net income from continuing operations attributable to Avient shareholders and diluted adjusted earnings per share (EPS) from continuing operations attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

X Trilliant HC2000-0021 FR Natural H/S BR. PP FR 8-6 LMS-1000