In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within ten (10) days thereof. Within ten (10) calendar days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

Factors that could cause actual results to differ materially from those implied by these forward-looking statements include, but are not limited to: • disruptions, uncertainty or volatility in the credit markets that could adversely impact the availability of credit already arranged and the availability and cost of credit in the future; • the effect on foreign operations of currency fluctuations, tariffs and other political, economic and regulatory risks; • disruptions or inefficiencies in our supply chain, logistics, or operations; • changes in laws and regulations in jurisdictions where we conduct business, including with respect to plastics and climate change; • fluctuations in raw material prices, quality and supply, and in energy prices and supply; • demand for our products and services; • production outages or material costs associated with scheduled or unscheduled maintenance programs; • unanticipated developments that could occur with respect to contingencies such as litigation and environmental matters; • our ability to pay regular quarterly cash dividends and the amounts and timing of any future dividends; • information systems failures and cyberattacks; • our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; • amounts for cash and non-cash charges related to restructuring plans that may differ from original estimates, including because of timing changes associated with the underlying actions; • other factors affecting our business beyond our control, including without limitation, changes in the general economy, changes in interest rates, changes in the rate of inflation, geopolitical conflicts, and any recessionary conditions; and • other factors described in our Annual Report on Form 10-K under Item 1A, “Risk Factors.” You are advised to consult any further disclosures we make on related subjects in our reports on Form 10-Q, 8-K and 10-K that we provide to the Securities and Exchange Commission. EPS $0.49 (3.9%) (1.9%) (5.8%) Copyright © . 2025 10 Color, Additives & Inks - Q4 2024 performance 459 468 84 82 EXCL.

F X ) -10% -11% -3% -12% 10 Avient ex. National Defense budget of $842 billion submitted to Congress in Q1 2023 • European NATO members annual defense spend expected to increase by up to 20%  Dyneema® is the world’s strongest fiber™  One of the highest strength to weight ratios of any material on Earth  Direct relationships with industry leading armor manufacturers  Resistant to most chemicals, UV, and moisture to handle any environment Avient Confidential 13 DEFENSE Source: US Department of Defense, defense.gov, NATO13 Source: TRANSPORTATION • Increased EPA regulations requiring improved fuel efficiency, enabled in part by lower-weight vehicles • Automakers preparing for 2/3 of U.S. vehicles to be 100% electric by 2032  Lightweight panels that establish both strength and stiffness resulting in decreased energy usage, lower emissions  Long-lasting Color applications to resist UV exposure, temperature fluctuations and exceed the stylistic requirements of global automakers 14 $130 $530 $0.60 $2.40 2023 GUIDANCE 15 Sales Adjusted EBITDA $845 $3,400 Adjusted EPS (in millions) (in millions) CASH FLOW / LEVERAGE 16 • Maintaining free cash flow and leverage guidance from February earnings call • IT investment to further integrate acquired businesses and capture operational efficiencies • Restructuring actions to streamline operations and improve profitability, primarily in Europe ($ millions) 2023E Cash Flow from Operating Activities 350$ Less: Run-Rate CapEx (110) CapEx for IT System Upgrade (25) CapEx for Restructuring (15) Total CapEx (150) Free Cash Flow 200$ Adjusted EBITDA 530$ Net Debt / Adjusted EBITDA 2.9x LONG-TERM REVENUE GROWTH DRIVERS Growth Drivers Long-Term Growth Rate Sustainable Solutions 8–12% Healthcare 8–10% Composites 10% Asia / LATAM 5% Other (GDP growth) 2–3% Avient 6.5% 17 Sustainable Solutions 32% Asia / LATAM Composites Other (GDP Growth) 39% • Virtual presentation to be held September 20, 2023 • The company will be conducting an investor-focused presentation around our sustainability solutions portfolio Avient Confidential 18 SUSTAINABILITY INVESTOR DAY 18 $340M $405M $455M $550M $790M $915M 2016 2017 2018 2019 2020PF** 2021 2022PF*** SUSTAINABILITY FOR A BETTER TOMORROW Revenue From Sustainable Solutions* 2016-2022 ($ in millions) Organic Future Growth Revenue Assumptions From Sustainable Solutions: 8 - 12% 19 *Avient Sustainable Solutions definitions aligned with FTC 2012 Guide for the Use of Environmental Marketing Claims (“Green Guides”) **2020 is Pro Forma to include full year of the Clariant Color business ***2022 is Pro Forma for the acquisition of Avient Protective Materials and the divestiture of Distribution $1,175M Lightweighting Eco-Conscious Recycle Solutions VOC Reduction Sustainable Infrastructure Human Health & Safety Reduced Energy Use Bio-polymers SUSTAINABILITY NEEDS BY MARKET B&C • Eco-Conscious • Carbon footprint • Resource conservation • Carbon footprint • Bio based content • Eco-Conscious Automotive • Light weighting • Recycled Content • VOC reduction • Recycle Solutions • Carbon Footprint Packaging • Recycle Solutions • Food waste reduction Common Theme: CO2 Emission Goals Increasing Single-Use Plastic Regulation 20 INVESTING IN INNOVATION S U S T A I N A B I L I T Y P O R T F O L I O 21 AP P EN D IX 24 RAW MATERIAL 2022 ANNUAL PURCHASES Performance Additives Pigments 12% TiO2 Dyestuffs 2% Polyethylene Nylon Polypropylene Styrenic Block Copolymer Other Raw Materials 33% ~40% hydrocarbon based (Grey shaded materials are hydrocarbon based, includes portion of “Other Raw Materials”) Non-hydrocarbon based materials • Cost inflation decelerating, particularly for hydrocarbon-based raw materials 2022 pro forma results for the acquisition of Avient Protective Materials SEGMENT DATA U.S. & Canada 40% 37% 18% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 24% Building and END MARKET REVENUE $2,355M $402M $1,300M $272M Sales EBITDA Specialty Engineered Materials Color Additives and Inks $592M$3,653M (1) 9% 26 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs C O L O R , A D D I T I V E S & I N K S 2022 REVENUE | $2 .4 B ILL ION 34% 38% END MARKET REGION 27 34% 21% Building & 1% Energy 2% S P E C I A LT Y E N G I N E E R E D M AT E R I A L S 2022 PRO FORMA REVENUE | $1 .3 B ILL ION END MARKET 52% 35% REGION 28 19% 8%Industrial 9% Defense Building & 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES BY END MARKET 27% 14% 17% Building & (37% of sales)Transportation 24% 12% Building & US & Canada (40% of sales) 56% 23% Building & 1% LATAM (5% of sales) 3% 29 PEER COMPARISONS AVIENT IS ASSET LIGHT Capex / Revenue 2023E (%) Avient Specialty Other Specialty / Note: Avient reflects 2023 estimated revenue of $3,400 and estimated run-rate CAPEX of $110M. 31 4 4 5 5 5 6 7 9 FREE CASH FLOW CONVERSION Note: Free cash flow conversion calculated as (Adjusted EBITDA – Capex) / Adjusted EBITDA.

Buyer will indemnify, defend and save Seller harmless against and from any and all liability arising out of or in any way connected with Buyer’s failure to disseminate such information, including without limitation, liability for injury, sickness, death and property damage, and costs of investigation, litigation and reasonable attorney’s fees. 10. Except in the case of a force majeure, if not satisfied with Seller’s determination, Buyer as its sole remedy shall have a right to terminate this contract without further obligation upon: (i) 10 days written notice; and (ii) payment for all Product received to date. 11. สินคา้ขาดตลาด ในระหวา่งที(มีความตอ้งการสินคา้เกินกวา่ปริมาณสินค้ าที(ผูข้ายมอียู ่ไม่วา่เนื(องดว้ยเหตุสุดวสิยั หรือโดยเหตอืุ(นใดก็ตาม ผูข้ายอาจจดัส่งสินคา้ภายในเครือของตนเพื(อใชใ้นการผลิตของตนเอง ลกูคา้ของตน และผูซื้7 อ ตามที(ผูข้ายเห็นวา่เป็นธรรมและพึงกระทาํได ้ ผูซื้7 อจะยอมรบัสินคา้ที(ส่งมอบต ามดุลพินิจเช่นนั7นของผูข้ายวา่เป็นการปฏิบติัหน้าที(โดยครบถว้นสมบูรณแ์ลว้ เวน้แต่ในกรณีที(เกิดเหตุสุดวสิยั หากผูซื้7 อไม่พอใจกบัดุลพินิจของผูข้าย ผูซื้7 อมีสิทธิบอกเลิกสญัญานี7 ไดโ้ดยไม่มีพนัธะหน้าที(อื(นอกี ทั7งนี7 ใหถื้อวา่การบอกเลิกสญัญาเป็นการแกไ้ขเยยีวยาเพียงอย่างเดียวเท่านั7นที(ผูซื้7 อ พึงกระทาํได ้เมื(อ (i) บอกเลิกสญัญาเป็นหนังสือล่วงหน้า 10 วนั และ (ii) ชาํระค่าสินคา้ทั7งหมดที(ไดร้บัแลว้จนถงึขณะนั7น 12.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.

In any such event as described above, all outstanding claims of Seller shall become due and payable immediately with respect to the Products delivered to Buyer and not repossessed by Seller. 10. Buyer must notify Seller of such acquisition within 10 (ten) days thereof. Within 10 (ten) days after receipt of such notice, Seller may exercise its right to terminate the order confirmation by giving Buyer written notice. 19.