Avient’s chief operating decision maker uses these financial measures to monitor and evaluate the ongoing performance of Avient and each business segment and to allocate resources. We create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Avient 2011, 2018 and 2021 multiples reflect trailing 12 months EBITDA at December 31. 28 EV / 2023E EBITDA 6.5 8.5 11.0 10.8 16.1 15.5 14.1 14.0 10.3 21.0 19.0 14.3 12.1 11.8 11.7 11.5 9.7 11 21 23 PM AV FM Avient Historic Multiple Avient Specialty Other Specialty / AP P E N DI X 30 Performance Additives 16% 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 2022 pro forma results for the acquisition of Avient Protective Materials RAW MATERIAL BASKET SEGMENT DATA U.S. & Canada 40% 37% 18% 2022 PRO FORMA SEGMENT, END MARKET AND GEOGRAPHY GEOGRAPHY REVENUESEGMENT FINANCIALS 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% 32 (1) Total company sales and adjusted EBITDA of $3,653M and $592M, respectively, include intercompany sales eliminations and corporate costs 2022 REVENUE | $2 .4 BILLION US & Canada 34% 38% END MARKET REGION 33 34% 21% Building & 1% Energy 2% COLOR, ADDITIVES & INKS 2022 PRO FORMA REVENUE | $1 .3 BILLION US & Canada 52% 35% 34 19% 8%Industrial 16% 9% Defense Building & END MARKET REGION SPECIALTY ENGINEERED MATERIALS 32% 27% 14% Building & 3% 1% Defense 1% (18% of sales) 9% 2022 PROFORMA AVIENT REGIONAL SALES 27% 14% 17% Building & (37% of sales)Transportation 12% Building & US & Canada (40% of sales) 7% 56% 23% 7% Building & 1% LATAM (5% of sales) 3% 35 BY END MARKET 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.

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

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

Homepage // News Center // Avient ColorForward™ Experts Predict Pandemic Likely to Influence Color Preferences, Even in 2022 To access Avient’s news library online, please visit www.avient.com/news. Investor News

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Sections 9 to 11 override Clause 5 (Hierarchy) of the Addendum EU SCCs; and c. this Addendum (including the Addendum EU SCCs incorporated into it) is (1) governed by the laws of England and Wales and (2) any dispute arising from it is resolved by the courts of England and Wales, in each case unless the laws and/or courts of Scotland or Northern Ireland have been expressly selected by the Parties. 13. Clause 17 is replaced with: “These Clauses are governed by the laws of England and Wales.”; n. Clause 18 is replaced with: “Any dispute arising from these Clauses shall be resolved by the courts of England and Wales.

Homepage // News Center // Avient Adds Its First Production Line for Long Fiber Reinforced Thermoplastic Composites in Asia Pacific To access Avient's news library online, please visit www.avient.com/news.   Investor News

Homepage // News Center // Bio-Based TPE for Biopharmaceutical Tubing Added to Avient’s Sustainable Healthcare Solutions Avient’s new Versaflex™ HC BIO TPE offers a sustainable alternative for biopharma tubing applications.     To access Avient's news library online, please visit www.avient.com/news.    

Homepage // News Center // Avient Introduces CESA™ Fiber Additives for Heat Preservation to Help Meet Fashion Design’s Functional Needs To access Avient's news library online, please visit www.avient.com/news Investor News

Homepage // News Center // Avient Launches High Performance UV Laser Marking Technology for FEP Wire & Cable To access Avient’s news library online, please visit www.avient.com/news. Investor News