Avient S2P Transformation and Coupa tool Is Coupa used now as the official procurement tool for all Avient globally? Select and open the applicable Coupa Notification email 2. Coupa Supplier Portal does not require installation of any sort, it is a website that can be opened through any Internet browser.

Registration information to access the Sustainability Day event will be provided in a news release in advance of the event. 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/d4zy5fep https://www.avient.com/investors https://register.vevent.com/register/BI2f6c5ad2bc1b4150b7f39a5b024d27cf https://www.avient.com/investors/events-presentations https://www.avient.com/news-events 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.

Soft touch TPEs for overmolded caps that allow consumers to open products more easily

AVNT-2023.09.30-News Release 1 NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Third Quarter 2023 Results • GAAP EPS of $0.06 includes special items primarily related to environmental costs and amortization expense 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/ky9b3iov https://www.avient.com/investors/ https://register.vevent.com/register/BIa7fc29ba31db4eec88eca2de2a3faa90 https://www.avient.com/investors/events-presentations https://www.avient.com/news-events 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.

Ashish Khandpur, President and Chief Executive Officer, Avient Corporation. To access Avient’s news library online, please visit www.avient.com/news-events. About Avient Avient Corporation (NYSE: AVNT) provides specialized and sustainable materials solutions that transform customer challenges into opportunities, bringing new products to life for a better world.

Avient news library online, please visit www.avient.com/news SEARCH INVESTOR NEWS

Homepage // News Center // Avient Launches TÜV Rheinland-Certified Carbon Calculator for Scope 3 Emission Goals To access Avient's news library online, please visit www.avient.com/news.     Investor News

Homepage // News Center // Avient Announces Launch of Biocompatible PEEK Pre-Colored Compounds for Healthcare at MEDICA 2024 To access Avient's news library online, please visit www.avient.com/news.  Investor News

AVIENT RESPONSIBLE CARE POLICY Avient Corporation conducts its operations in a manner that is protective of the environment, and the health, safety and security of associates, customers, and all our stakeholders, including the communities in which we operate. Product Stewardship activities encompassing a life cycle approach, ensure sustainable management of our products and an open dialogue with all interested parties.  Promote openness and two-way communication with key stakeholders regarding environmental, health and safety measures and risks associated with use, storage, transportation and disposal of our products.

Homepage // News Center // PVDF Processing Aids for Enhancing Extrusion Efficiency Now Available from Avient Avient’s new Colorant Chromatics™ PVDF Processing Aids are an excellent choice for wire & cable extrusion Investor News