Jan 19, 2022 Stephan, and Avient Corporation, “EMI/RFI Shielding Formulations for Use in Advanced Electronic Systems” (2014). Tungsten filler also can replace lead in projectile ammunition— satisfying lead level regulations—and provides weight and balance in such sporting equipment as golf clubs and weight training vests.

Schuering Page 77 Appliance 5% Building & Construction 3% Wire & Cable Electrical & Electronics Consumer 21% Industrial 24% HealthCare 21% Transportation 17% 2011 Revenue: $1.0 Billion2011 Revenue: $1.0 Billion Key SuppliersKey Suppliers At a Glance Packaging 2.6% 3.0% 3.5% 4.0% 4.6% 5.6% 2006 2007 2008 2009 2010 2011 2015 Operating Income % of Sales ROICROIC Expanding ProfitsExpanding Profits 15.3% 18.4% 22.4% 30.0% 39.2% 48.6% 2006 2007 2008 2009 2010 2011 Target 6 – 7.5% Page 78 Value Proposition and Transformation Highlights Value Proposition • North America-based distributor with expanding global reach providing key plastic processors and market segments with best-in-class suppliers products, service and delivery with a commitment to develop value-added solutions to enhance customer profitability Transformation Highlights • Significant market share gains with key suppliers , > $5B Addressable Market • Significant market share gains with key suppliers � Proprietary PolyOne technology � Dow Corning • Improved sales mix and profitability by shifting to non-cyclical businesses like healthcare • Established presence in Brazil and Asia in 2011 Page 79 Key Differentiators • Product offering � Breadth and depth; industry leading suppliers • Sales and marketing capability • Customer service / logistics operations � Customer survey results – consistent best-in-class performance � Leading on-time delivery • Management team experience and stability • Lean Six Sigma � Solving our customers’ unmet needs Page 80 $102.8 $207.2 Healthcare Revenue • Strong market segmentation provides focused resourcing to accelerate growth • Expanding global reach meets Areas of Focus $66.0 $182.4 National Accounts Revenue • Expanding global reach meets customers’ needs and creates competitive differentiation • Selling skills & product application knowledge to target executives & engineers ($ millions) Page 81 Critical Imperatives • Invest in commercial resources to accelerate growth • Expand healthcare and key account revenues • Broaden geographic reach and develop new markets and channel partnerships Critical Imperatives and 2015 Goal channel partnerships • Continue to improve working capital efficiency and superior cash flow generation 2015 Goal • 6 - 7.5% return on sales Page 82 Page 83

Ashish Khandpur, President and Chief Executive Officer, Avient Corporation. We delivered year-over-year earnings growth, much of which came from margin improvement in Europe and prudent cost control by our teams. Rose Vice President, Marketing and Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com mailto:giuseppe.disalvo@avient.com mailto:kyle.rose@avient.com 6 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended December 31, Year Ended December 31, 2023 2022 2023 2022 Sales $ 719.0 $ 790.4 $ 3,142.8 $ 3,396.9 Operating income 43.1 0.4 196.8 243.3 Net income (loss) from continuing operations attributable to Avient shareholders 27.8 (17.0) 75.8 82.8 Diluted earnings (loss) per share from continuing operations attributable $ 0.30 $ (0.19) $ 0.83 $ 0.90 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.

SANDERS Senior Vice President, General Counsel and Secretary, Avient Corporation Amy M. Sanders joined Avient in April 2024 and has responsibility for all legal functions, including contracts and transactions, M&A, compliance, labor relations, digital information, privacy, and intellectual property. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com

NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient. STAN-TONE HCC-34502 NIGHT TRAIN CC-720 NORTH AMERICA (Goods manufactured by Avient): Use the search boxes on the current page to use the online search for SDS for products manufactured by Avient.

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Avient’s experts can provide technical support for material selection, part and tool design, and process development to help accelerate commercialization. Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K.

TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. If Buyer resells the Products, Buyer agrees to the Terms and Conditions Regarding Buyer Resale of Avient Products located at www.avient.com/terms. Terms and Conditions (April 1, 2024)

Specialization Globalization Operational Excellence Commercial Excellence Associates 3 4 Richtlijnen voor ethisch gedrag De Gedragscode van Avient (de ’Code’) is een richtlijn voor zakelijk gedrag. Leg vereiste training en certificatie af inzake naleving en ethiek. Een gedeelde toewijding Het zakendoen met integriteit vereist de toewijding van ons allen hier bij Avient, samenwerkend als een team.

Avient Announces Quarterly Dividend... Avient Board of Directors Appoints Ashish K. Avient Announces First Quarter 2025 Results...