POMMERLOCH, Luxembourg – February 27, 2025 – Avient Corporation, an innovator of materials solutions, announces an expansion of its ECCOH™ XL Cross-Linkable Flame Retardant Solutions with the launch of ECCOH XL 8054. Our purpose at Avient Corporation (NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. 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.

ATLANTA – October 23, 2023 – Today, Avient Corporation, a premier provider of specialized and sustainable material solutions and services, announced it will highlight its breadth of composite solutions, including new ballistic-resistant panels, at the Composites and Advanced Materials Expo (CAMX) in Atlanta next week.   Avient Corporation provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation, and fiber optic / 5G network accessibility    

V IE C IO A U L R E 2 0 4 Innovator of Materials Solutions AVIENT.COM Our purpose at Avient Corporation (NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. Innovator of Materials Solutions20 24 In this annual report, 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. As part of our evolution as a company, we articulated a new Purpose: to be an innovator of materials solutions to help our customers succeed, while enabling a sustainable world.

NYSE: AVNT), a leading provider of specialized and sustainable material solutions, has declared a quarterly cash dividend of twenty-four and three-quarters cents ( NYSE:  AVNT) provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility

Unlocking Sustainability: Avient to Showcase Solutions for a Circular Economy at Chinaplas 2021 SHENZHEN, China – April 7, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, will feat SHANGHAI – February 25, 2021– Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today launche

CERTIFICATE OF INCORPORATION ON CHANGE OF NAME Company Number 3141094 The Registrar of Companies for England and Wales hereby certifies that under the Companies Act 2006: POLYONE CORPORATION UK LIMITED a company incorporated as private limited by shares, havingits registered office situated in England and Wales, has changed its name to: AVIENT MATERIAL SOLUTIONS UK LIMITED Given at Companies House on9th November 2021.

Solutions range from non-halogen, flame retardant, and low smoke, to oil/chemical resistant and high-temperature materials. We are continuously developing new and improved solutions to better serve the growing functional needs of our customers. Guided by its Core Values, Sustainability Promise and No Surprises PledgeSM, PolyOne is committed to its customers, employees, communities and shareholders through ethical, sustainable and fiscally responsible principles.

SHANGHAI – January 27, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today announc CLEVELAND – January 15, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, will complet CLEVELAND – January 8, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, today an

Avient Launches Two New Sustainable Polymer Solutions for Medical and Pharmaceutical Applications During Pharmapack Europe 2021 Avient Exhibits New Bio-Filled Polymers and Sustainable Solutions Portfolio at Fakuma 2021 Caption: Sustainable polymer solutions for personal care applications await visitors to the Avient booth at Fakuma.

47 Shore A, Natural, colorable solution Versaflex™ OM 1000 Series – Colorable overmolding solution Versaflex™ OM 9-802CL – Water-clear overmolding solution