Q2 Avient Corporation Earnings Conference Call More Q1 Avient Corporation Earnings Conference Call More Q4 Avient Corporation Earnings Conference Call More

Evins brings over 28 years of IT leadership experience to Avient, most recently serving as Executive Vice President and CIO at LPL Financial where she led agile technology transformations to improve end user experience and meet increased business needs. She has extensive experience modernizing legacy systems, building automation, scaling IT resources, and enabling business success through technology. Avient Corporation • 33587 Walker Road • Avon Lake, Ohio 44012 • 440.930.1000 • www.avient.com Blank Page Blank Page Blank Page

Avient and IVCC Accelerate Formulation Development of Long-Lasting Insecticidal Nets for Malaria Control CLEVELAND – April 19, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today announce Avient Launches New Renol™ and Remafin™ Masterbatches Developed to Create Natural-Looking TPE Wine Corks

reSound™ R recycled content thermoplastic elastomers (TPEs): Developed to help brand owners create more sustainable end-user products, these formulations utilize 9 to 83 percent recycled content from post-consumer recycled (PCR) and post-industrial recycled (PIR) sources. Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com

Avient Corporation provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy     Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com

NEW Cesa™ Unify™ A4R - This latest addition to the Additives for Recycling portfolio of solutions is a polyolefin compatibilizer developed to enhance and support the use of recycled polyolefins. Unique technologies  that  improve  the  recyclability  of  products  and  enable  recycled content to be incorporated, thus advancing a more circular economy     Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com

POMMERLOCH, LUXEMBOURG – August 5, 2025 – Avient Corporation, an innovator of materials solutions, announces additional grades in its portfolio of recycled-content polycarbonate (PC) and PC blends developed to meet the growing demand for materials that support sustainability in the electrical and electronics (E&E) industry to the Europe, Middle East, and Africa (EMEA) regions. By intersecting our broad portfolio of technologies with the product roadmaps of our customers, we help create differentiated and high-performance products that make the world better and more sustainable. Media Contact Nicole DeChant Avient Corporation nicole.dechant@avient.com

Understanding TPE Performance for Enabling 5G Technologies A guide to the spin-dyeing technology Sustainable Fiber Coloration Technology (Spin-Dyeing)

PolyOne Corporation, with 2013 revenues of $3.8 billion, is a premier provider of specialized polymer materials, services and solutions. CAPTION: PolyOne has developed five new medical-grade polymer carriers within itsOnColor™ HC Plus portfolio. Media contact Michelle Maniscalco Marketing Communications Manager, North America PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

CLEVELAND – PolyOne Corporation (NYSE: POL), a premier provider of specialized polymer materials, services and solutions, today announced that PolyOne Ultraviolet Light Barrier Technology Advances Packaged Food and Beverage Protection in China SUZHOU, China – PolyOne today announced that its ColorMatrix™ Ultimate UV390 light blocking technology is now approved for use in PET packaging fo