Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA, Adjusted Earnings Per Share, Net Debt/Adjusted EBITDA and Free Cash Flow to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort. Management believes this provides comparability of the performance of the combined businesses. A reconciliation of these measures to their most directly comparable GAAP measures is provided in the tables below.

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; • 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; • Our ability to achieve strategic objectives and successfully integrate acquisitions, including the implementation of a cloud-based enterprise resource planning system, S/4HANA; • 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 for the year ended December 31, 2023 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. Avient does not provide reconciliations of forward-looking non-GAAP financial measures, such as outlook for Adjusted EBITDA and Adjusted Earnings Per Share, to the most comparable GAAP financial measures on a forward-looking basis because Avient is unable to provide a meaningful or accurate calculation or estimation of reconciling items and the information is not available without unreasonable effort.

is a premier provider of specialized polymer materials, services and solutions. masterbatch business and achieve the expected results of the acquisitions, including, without limitation, the acquisitions being accretive; 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; changes in polymer consumption growth rates and laws and regulations regarding plastics in jurisdictions where we conduct business; changes in global industry capacity or in the rate at which anticipated changes in industry capacity come online; fluctuations in raw material prices, quality and supply, and in energy prices and supply; 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; an inability to raise or sustain prices for products or services; an inability to achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to acquisition and integration, working capital reductions, costs reductions and employee productivity goals; information systems failures and cyberattacks; and other factors affecting our business beyond our control, including, without limitation, changes in the general economy, changes in interest rates and changes in the rate of inflation.

Avient Terms and Conditions of Purchase for Goods and/or Services These Terms and Conditions of Purchase for Goods and/or Services (“Terms of Purchase”) apply to and form an integral part of all requests for proposal, quotations and Purchase Orders.  Avient Corporation provides equal opportunity in all aspects of its employment practices.

This includes lower-carbon alternatives to thermoplastic elastomers (TPEs) without sacrificing performance, portfolio expansions including bio-renewable feedstock and post-industrial or post-consumer recycled (PCR) content, and new materials and services focused on meeting specific customer needs while helping to advance a circular economy. The user-friendly control screens and access to global remote technical services also enable faster remote diagnostics, response, data acquisition, and inventory management. Avient Corporation (NYSE: AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

brings to customers and the full suite of innovative materials and services that enable their sustainability goals. is a premier provider of specialized polymer materials, services and solutions.

Any samples or developmental material provided by Seller are provided “AS IS” with no warranty as to its performance and such samples or materials shall not create any warranty by sample, which is hereby waived. Seller reserves to itself all applicable duty drawback allowances, and Buyer shall provide assistance in connection with Seller’s application for the same. 11. Buyer will sign a reasonable confidentiality agreement upon request and ensure its employees and service providers are bound by at least equally restrictive confidentiality obligations as those stated herein. 23.

In doing so, we innovate solutions that help our customers overcome their challenges or capitalize on opportunities provided by the fast-changing world and secular trends. FINANCIAL INFORMATION Security analysts and representatives of financial institutions are invited to contact: Joe Di Salvo Vice President, Treasurer and Investor Relations Phone: 1-440-930-1921 Email: giuseppe.disalvo@avient.com AUDITORS Ernst & Young LLP North Point Tower II, Suite 1800 1001 Lakeside Ave Cleveland, OH 44114 INTERNET ACCESS Information on Avient’s products and services, news releases, corporate governance, EDGAR filings, Reports on Forms 10-K and 10-Q, etc. as well as an electronic version of this annual report, are available on the Internet at www.avient.com.

Avient provides User access to Information Systems to facilitate business communications and advance Avient business objectives.  Temporary contract workers, independent contractors, and consultants are subject to the provisions of the relevant service agreements.

WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 10 Facility: Avient Austria GmbH Alfred Feierfeilstraße 3 Perchtoldsdorf 2380 Austria Facility: Avient Colorants Belgium SA Parc Scientifique Fleming, Fond Jean Pâques 1 Louvain-la-Neuve, Walloon Brabant 1348 Belgium Activity: Administration Activity: Site management, CSD – Customer Services, Manufacture, Laboratory, Supply Chain Management, Maintenance, Infrastructure, Warehouse and Transport Facility: Avient Colorants Brasil Ltda. Industri Kecil & Sederhana Simpang Ampat, Penang 14120 Malaysia Activity: Central Office, Administration, Site management (Facitilities, EHS), Marketing and Sales, SCM, Group Procurement Services, GBS and Logistics, GTI-Engineering and R&D, Technical Application Laboratories, Legal, Finance, HR, IT, RSRA, SMD and Learning, Communication Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Facility: Avient Colorants MX S.A. de C.V.