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AVNT-2022.03.31-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces First Quarter 2022 Results in Connection with Announcement to Acquire DSM Protective Materials (Dyneema®) • First quarter sales grew to $1.3 billion, an 11% increase over the prior year • GAAP EPS increased to $0.91 from $0.86 in the prior year first quarter • Adjusted EPS increased 11% to $0.99 compared to $0.89 in the prior year first quarter, exceeding first quarter guidance of $0.95 • Second quarter adjusted EPS guidance of $0.92 introduced with full year adjusted EPS expectation maintained at $3.50 (excluding the impact of the acquisition) • Full year free cash flow now expected to approximate $285 million, an increase of $35 million from prior estimates CLEVELAND – April 20, 2022 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, today announced its first quarter 2022 results. About Avient Avient Corporation (NYSE: AVNT), with 2021 revenues of $4.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise.

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AVNT-2022.09.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Third Quarter 2022 Results • Completed the acquisition of DSM Protective Materials (including Dyneema®) on September 1st and the sale of the Distribution business on November 1st • $750 million of after-tax proceeds from the sale of Distribution used to redeem all Senior Unsecured Notes due in 2023 and pay down a portion of term loan debt • GAAP EPS from continuing operations of ($0.30) includes special items of ($0.75) primarily associated with acquisition-related costs and an adjustment to environmental reserves • Adjusted EPS excluding intangible amortization of $0.59 is in line with the company’s guidance of $0.58 provided on September 27th • Revised full year adjusted EPS guidance to $2.60 primarily as a result of recently announced COVID lockdowns CLEVELAND – November 2, 2022 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable solutions, today announced its third quarter 2022 results. To access Avient’s news library online, please visit www.avient.com/news # # # Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations Avient Corporation +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G. Rose Vice President, Corporate Communications Avient Corporation +1 440-930-3162 kyle.rose@avient.com http://www.avient.com/news 7 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) (In millions, except per share data) Three Months Ended September 30, Nine Months Ended September 30, 2022 2021 2022 2021 Sales $ 823.3 $ 818.0 $ 2,606.5 $ 2,508.5 Operating Income 40.6 52.8 242.9 229.6 Net (loss) income from continuing operations attributable to Avient shareholders (27.4) 33.7 99.8 143.3 Basic (loss) earnings per share from continuing operations attributable to Avient shareholders $ (0.30) $ 0.37 $ 1.09 $ 1.57 Diluted (loss) earnings per share from continuing operations attributable to Avient shareholders $ (0.30) $ 0.37 $ 1.08 $ 1.56 Senior management uses comparisons of adjusted net income attributable to Avient shareholders and diluted adjusted earnings per share (EPS) attributable to Avient shareholders, excluding special items, to assess performance and facilitate comparability of results.

News Release - AVNT-2021.12.31-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Record Fourth Quarter and Full Year 2021 Results Financial Performance • Fourth quarter and full year sales increased 21% to $1.2 billion and 27% to $4.8 billion, respectively • Fourth quarter and full year GAAP EPS of $0.32 and $2.51 compared to $0.81 and $1.46 in the prior year • Fourth quarter and full year adjusted EPS increased 12% to $0.58 and 58% to $3.05, respectively • Initiates 2022 guidance of $5.1 billion in sales and $3.50 in adjusted EPS Milestone Achievements • Increased dividend on an annualized basis by 12% to $0.95; the 11th year in a row of an annual increase • Increased EBITDA contribution from Clariant acquisition from $133 to $205 million and reduced net debt to adjusted EBITDA to 2.2x, one year ahead of schedule • Joined the United Nations Global Compact, recognized as one of America’s Most Responsible Companies by Newsweek, and earned the company's third consecutive Great Place to Work® certification. The company reported sales growth of 27% for the full year compared to 2020, with all segments delivering record sales and operating income. http://www.avient.com/investors https://edge.media-server.com/mmc/p/k7okojz2 https://edge.media-server.com/mmc/p/k7okojz2 http://www.avient.com/investors 4 About Avient Avient Corporation (NYSE: AVNT), with 2021 revenues of $4.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

About Avient Avient Corporation (NYSE: AVNT), with 2020 pro forma revenues of $3.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. We undertake no obligation to publicly update forward-looking statements, whether as a result of new information, future events or otherwise. Rose Vice President, Corporate Communications +1 440-930-3162 kyle.rose@avient.com 5 Attachment 1 Avient Corporation Summary of Condensed Consolidated Statements of Income (Unaudited) Year Ended Sales $ 997.0 $ 658.6 $ 3,242.1 $ 2,862.7 Operating Income 65.0 20.5 189.3 156.8 Net income from continuing operations attributable to Avient shareholders 74.2 6.4 132.0 75.5 Basic earnings per share from continuing operations attributable to Avient shareholders $ 0.81 $ 0.08 $ 1.47 $ 0.98 Diluted earnings per share from continuing operations attributable to Avient shareholders $ 0.81 $ 0.08 $ 1.46 $ 0.97 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.

AVNT-2022.06.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Second Quarter 2022 Results • Second quarter sales grew to $1.3 billion, a 5% increase over the prior year quarter, and an all-time quarterly record • GAAP EPS increased 24% to $0.92 compared to $0.74 in the prior year quarter • Adjusted EPS increased 13% to $0.98 compared to $0.87 in the prior year quarter, exceeding second quarter guidance of $0.92. The comprehensive online publication highlights progress made toward Avient’s 2030 Sustainability Goals, along with other news and information on ESG matters. Avient will be hosting a webcast on Tuesday, July 26, 2022 to discuss second quarter results and provide more details about the Dyneema acquisition and potential sale of its Distribution business.

AVNT-2022.03.31-News Release - Dyneema 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Agreement to Acquire DSM Protective Materials (Dyneema®) and Plans to Explore Sale of Distribution CLEVELAND – April 20, 2022 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, today announced that it has entered into an agreement with Royal DSM (“DSM”) to purchase the DSM Protective Materials business (including the Dyneema® brand) (the “Dyneema business”). In conjunction with this proposed acquisition, Avient has also announced that it plans to explore sale options for its Avient Distribution business. About Avient Avient Corporation (NYSE: AVNT), with 2021 revenues of $4.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world.