Greffe du Tribunal de Commerce de Bourg-en-Bresse 32 AV ALSACE LORRAINE CS 50317 01011 BOURG EN BRESSE CEDEX N° de gestion 2018B01303 R.C.S. codeVerif=iWCDBNXrir Greffe du Tribunal de Commerce de Bourg-en-Bresse 32 AV ALSACE LORRAINE CS 50317 01011 BOURG EN BRESSE CEDEX N° de gestion 2018B01303 R.C.S.

They use words such as "will," “anticipate,” “estimate,” “expect,” “project,” “intend,” “plan,” “believe” and other words and terms of similar meaning in connection with any discussion of future operating or financial condition, performance and/or sales. Avient reflects 2023 adjusted EBITDA guidance of $500M and estimated run-rate CAPEX of $110M. 2023E (%) 27 78 89 84 82 80 77 88 81 76 70 69 60 54 (6) Av ie nt PP PM FM C C Avient Specialty Other Specialty / MULTIPLE EXPANSION Note: Avient reflects 2023 adjusted EBITDA guidance of $500M and closing share price of $31.18. Avient 2011, 2018 and 2021 multiples reflect trailing 12 months EBITDA at December 31. 28 EV / 2023E EBITDA 6.5 8.5 11.0 8.9 12.0 11.9 10.9 9.9 8.2 16.3 13.8 11.9 9.6 9.5 9.5 9.2 7.7 11 21 O ct 23 PM PP FM C C 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.

Microsoft Word - Terms and Conditions of Sale for India (English 12-17-24) TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. Re-Sale and Re-Export; Compliance with Laws. The United Nations Convention respecting Contracts for the International Sale of Goods and Incoterms shall not apply to sales under these Terms. 21.

Microsoft Word - Terms and Conditions of Sale for Singapore (English 12-17-24) TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. Re-Sale and Re-Export; Compliance with Laws. The United Nations Convention respecting Contracts for the International Sale of Goods shall not apply to sales under these Terms. 22.

Re-Sale and Re-Export; Compliance with Laws. Seller prohibits re-sale of Product unless expressly permitted by Seller in writing. The United Nations Convention respecting Contracts for the International Sale of Goods shall not apply to sales under these Terms. 21.

Microsoft Word - Terms and Conditions of Sale for Thailand (English 12-17-24) TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. Re-Sale and Re-Export; Compliance with Laws. The United Nations Convention respecting Contracts for the International Sale of Goods shall not apply to sales under these Terms. 21.

Microsoft Word - Terms and Conditions of Sale for Hong Kong (12-17-24) TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. Re-Sale and Re-Export; Compliance with Laws. The United Nations Convention respecting Contracts for the International Sale of Goods shall not apply to sales under these Terms. 21.

Re-Sale and Re-Export; Compliance with Laws. Seller prohibits re- sale of Product unless expressly permitted by Seller in writing. The United Nations Convention respecting Contracts for the International Sale of Goods shall not apply to sales under these Terms. 21.

Re-Sale and Re-Export; Compliance with Laws. Seller prohibits re- sale of Product unless expressly permitted by Seller in writing. The United Nations Convention respecting Contracts for the International Sale of Goods shall not apply to sales under these Terms. 21.

Microsoft Word - Terms and Conditions of Sale for Indonesia (English 12-17-24) TERMS AND CONDITIONS These Terms and Conditions govern the sale of Products to another (“Buyer”) by Avient Corporation and its affiliates (“Seller”). 1. Re-Sale and Re-Export; Compliance with Laws. The United Nations Convention on Contracts for the International Sale of Goods shall not apply to sales under these Terms. 21.