Holger Kronimus, PolyOne vice president Europe and general manager, Specialty Engineered Materials Europe, commented, “We’ve recently developed several technologies in close collaboration with customers that help to improve manufacturing efficiency while also addressing the need for sustainable operations and products.” ECCOH XLS, a moisture-cured technology that helps manufacturers reduce production and operating costs Media contact Matt Defosse Marketing Communications Manager, Europe PolyOne Corporation +49 6407-907-0386 matt.defosse@avient.com

Qure Medical uses cutting-edge technology to develop custom low extractable/leachable medical formulations that meet the stringent requirements of the medical industry. Investor contact: Isaac DeLuca Vice President, Investor Relations PolyOne Corporation +1 440-930-1226 Isaac.deluca@avient.com Media contact: Kyle Rose Director, Corporate Communications PolyOne Corporation +1 440-930-3162 kyle.rose@avient.com

To help packaging customers further their recyclability and lightweighting goals, Avient developed this technology for mono-layer PET, one of the most widely recycled packaging materials. These new additives are an expansion of this technology. Media contact Michelle Maniscalco Senior Manager, Marketing Communications Avient Corporation michelle.maniscalco@avient.com  

Clark, Ph.D., Senior Vice President and Chief Technology Officer  Irwin, Senior Vice President, New Business Development & Marketing Excellence  Rose, Vice President, Corporate Communications 

CLEVELAND– December 7, 2023 – Today, Avient Corporation is proud to introduce its third-party-certified Product Carbon Footprint (PCF) Calculator, developed to evaluate the carbon footprint of Avient’s specialized and sustainable material solutions. Over the past three years, Avient has made significant strides in developing materials to enable sustainability, introducing over 40 new product lines to incorporate more recycled content, bio-derived materials, lightweighting solutions, and energy-saving technologies. Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com

PolyOne Corporation, with 2017 revenues of $3.2 billion, is a premier provider of specialized polymer materials, services and solutions. PHOTO CAPTION: PolyOne Expands in India with New TPE Line and Technology Centre Michelle Maniscalco Senior Manager, Marketing Communications PolyOne Corporation +1 440-930-1988 michelle.maniscalco@avient.com

GLS™ TPEs with Antimicrobial Technologies Developed to help preserve high-touch surfaces, these TPE formulations help to extend useful life of molded parts for consumer goods, packaging and automotive applications. GLS™ TPEs with Antimicrobial Technologies - Product Bulletin

Developed for low smoke and fume wire and cable insulation, this solution can meet stringent electrical and electronic fire safety regulations in Europe. 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

CLEVELAND – PolyOne today announced development of reSound™ NF reinforced materials, based on an eco-conscious, natural fiber-filled technology. Developed for advanced applications in transportation, these materials contain a minimum of 30% bio-based content, and are in current evaluations at several key automotive OEMs. Matt Defosse Marketing Communications Manager, Europe PolyOne Corporation +49 6407-907-0386 matt.defosse@avient.com

Avient’s expertise lies not only in formulation development but also in helping customers optimize their product design and increase the likelihood that the end product will be compliant. Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy Media Contact Jennifer Huang Senior Manager, Marketing Communications Asia Avient Corporation +86 21 60284888 jennifer.huang@avient.com