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The Company noted it will provide more details on its 2021 outlook during the webcast scheduled for 9:00 a.m. Refer to Attachment 7 Reconciliation of Non-GAAP Financial Measures for details regarding adjustments to previously reported results to arrive to the pro forma financial metrics. 2 Webcast Details The company will host a webcast at 9:00 a.m. The webcast can be viewed at avient.com/investors, or by clicking here: https://edge.media- server.com/mmc/p/ko4y5g9z.

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

Competition is based on service, performance, product innovation, product recognition, speed, delivery, quality and price. Speed, service, reputation, product line, brand recognition, delivery, quality and price, are the principal factors affecting competition. Our filings are available to the public at the SEC’s website at http://www.sec.gov.

Competition is based on service, performance, product innovation, product recognition, speed, delivery, quality and price. See Note 13, Income Taxes, for additional detail. Awards vest in one-third increments upon the later of the attainment of time- based vesting over a three-year service period and stock price targets.

Competition is based on service, performance, product innovation, product recognition, speed, delivery, quality and price. Speed, service, reputation, product line, brand recognition, delivery, quality and price are the principal factors affecting competition. Our filings are available to the public at the SEC’s website at http://www.sec.gov.

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Homepage // News Center // PolyOne Showcases a Full Spectrum of Colorants and Additives Fused with Local Service in South America As we increase our product and service offerings into South America, we look forward to engaging with current and potential customers at the Feiplastic show to demonstrate our commitment to offer globally meaningful solutions with local technical service in the country.” A Focus on Local Service

Homepage // News Center // ColorNow™ Digital Service from Avient Offers Immediate Color Matching and Streamlined Color Design Process SINGAPORE – October 12, 2023 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today announced its ColorNow™ digital service is offering immediate color matching and an enhanced color design process for plastic manufacturers. Avient’s ColorNow service overcomes essential challenges in digitalized color design.

Homepage // News Center // Avient Showcases Sustainable Polymers, Colorants and Services for Mexico and Latin America at Plastimagen Caption: Explore the possibilities for polymers, colorants, additives, and services with Avient at Plastimagen 2022 in Mexico City. Avient’s display features specialized polymer solutions and local services for customers in Latin America, including: