For more information, visit https://www.avient.com. 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; changes in laws and regulations regarding plastics in jurisdictions where we conduct business; 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; our ability to achieve strategic objectives and successfully integrate acquisitions, including Avient Protective Materials; an inability to raise or sustain prices for products or services; our ability to pay regular quarterly cash dividends, including at the increased rate, 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; and 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 and any recessionary conditions.

Eastern Time on May 3, 2023. 3 Webcast Details Avient will host a webcast on Wednesday, May 3, 2023 at 8:00 a.m. To access Avient’s news library online, please visit www.avient.com/news. https://www.avient.com/investors https://edge.media-server.com/mmc/p/xkwywv44 https://www.avient.com/investors https://register.vevent.com/register/BI3163094c31c24a9680e9118cec4f9167 https://www.avient.com/investors/events-presentations https://www.avient.com/news 4 About Avient 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. For more information, visit https://www.avient.com. https://www.avient.com/ 5 Forward-looking Statements In this press release, statements that are not reported financial results or other historical information are "forward-looking statements" within the meaning of the Private Securities Litigation Reform Act of 1995.

The below chart provides further details. Detailed information follows the chart below. Details regarding these awards are described below.

B-101A CAN-AM RED 2053 CN Services

https://entreprises.revenuquebec.ca/EntNa/SX/SX00/SX00.SXCLT20A You can use this service to validate a business’s QST registration number. You can also use this service to validate the QST registration number of a supplier outside Québec.

After grabbing more than 8% of the market within six months of the release of its flagship vehicle, the engineers at a game-changing electric car manufacturer went back to work fine-tuning the details. And there was an aesthetic target: the new material needed to deliver tactile qualities consistent with the car’s luxury price tag. 

After grabbing more than 8% of the market within six months of the release of its flagship vehicle, the engineers at a game-changing electric car manufacturer went back to work fine-tuning the details. And there was an aesthetic target: the new material needed to deliver tactile qualities consistent with the car’s luxury price tag. 

After grabbing more than 8% of the market within six months of the release of its flagship vehicle, the engineers at a game-changing electric car manufacturer went back to work fine-tuning the details. And there was an aesthetic target: the new material needed to deliver tactile qualities consistent with the car’s luxury price tag. 

Avient Announces Registration Details for December 4th Investor Day... Avient Announces Pricing of $650 Million 6.250% Senior Notes due 2031...

Earnings webcast recording, slide presentation, and press release available at https://www.avient.com/investors/events-presentations. 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; our ability to service our indebtedness and restrictions on our current and future operations due to our indebtedness; 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; and 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.