MAJOR TELECOM COMPANY B A S E S T A T I O N P H A S E S H I F T E R • Required customized Dk / Df values tailored to a unique antenna design • Quick qualification of designs and short lead times were critical to support the rapid rollout of new 5G networks • Met required Dk / Df properties using two customized solutions offering Dk 3.6, Df 0.0006 and Dk 3.1, Df 0.0007 • Accelerated speed to market due to thermoplastics’ design flexibility Custom Edgetek™ Formulations KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION TAILORED DK / DF VALUES LEARN MORE Copyright © 2021, Avient Corporation. https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/edgetek

MAJOR TIER 1 SUPPLIER C O N N E C T O R C O V E R • EMI-shielding performance at frequencies from 30 MHz up to 2 GHz • Excellent dimensional stability • Must meet robust mechanical property targets including tensile strength and elongation at break • Worked in close collaboration with the OEM from the start of the development process in order to fully understand their key requirements • Developed a customized material providing the required EMI-shielding performance which, removing the need for secondary metallization manufacturing processes, reduced cycle time Surround™ NN- 14 NICF SIP Black Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION EMI SHIELDING AT LOWER FREQUENCIES LEARN MORE Copyright © 2020, Avient Corporation. https://www.avient.com/products/engineered-polymer-formulations/conductive-signal-radiation-shielding-formulations/surround

O F F - ROA D V E H I C L E B R A N D H O O D P A N E L • High gloss • Scratch appearance resistance • Ease of processing • Provided technical support from concept to production • Conducted FEA and mold flow analysis • Had solutions for either natural plus concentrate or pre-colored to best meet customer needs • Customized colors to match brand identity and preference Artisan™ Nylon PA6 Formulation KEY REQUIREMENTS WHY AVIENT? AVIENT SOLUTION PAINT REPLACEMENT LEARN MORE Copyright © 2020, Avient Corporation. https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/artisan-pre-colored-thermoplastics-paint-replacement

The company will conduct a conference call at The company adds value to global customers and improves sustainability through formulating materials, such as: masterbatch business, including, without limitation, the acquisition 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 ability 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.

1 AVIENT CORPORATION AUDIT COMMITTEE CHARTER Authority The Board of Directors, by resolution dated August 31, 2000, established the Audit Committee. Review and discuss with management and the internal and independent auditors compliance with the Company’s Codes of Business Conduct and Ethics. Advise the Board with respect to the Company’s policies and procedures regarding compliance with the Company’s Codes of Business Conduct and Ethics. 3.

We  conduct  business  in  a  manner  intended  to  avoid   intentionally  or  knowingly  contributing  to  such  abuses.     As  stated  in  our  Code  of  Conduct,  “we strive to create a world-class sustainable organization, by conducting business in a way that meets the needs of the present without compromising the ability of future generations to meet their own needs. This  includes  annually  conducting  a  reasonable  due  diligence  inquiry  of  our   suppliers  into  the  source  and  conflict  status  of  any  3TG  metals  contained  in  Avient  products  that  are  within  the   scope  of  the  Act.    

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Conference Call As previously announced, the company will conduct a conference call to discuss its financial results for the third quarter at Comptek, SilCoTec, Gordon Composites and Polystrand, including whether such businesses will be accretive, retain the management teams of acquired businesses, and retain relationships with customers of acquired businesses; 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; our ability to achieve new business gains; 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 the disposal of plastic 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 achieve or delays in achieving or achievement of less than the anticipated financial benefit from initiatives related to working capital reductions, cost reductions and employee productivity goals; an inability to raise or sustain prices for products or services; our ability to continue to pay cash dividends, including at the increasing rate, which will be subject to, among other factors, market conditions, our cash flow and cash requirements and restrictions contained in any of our debt agreements; 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.