NYSE: AVNT), an innovator of materials solutions, today announced its second quarter results for 2025. NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. In doing so, we innovate solutions that help our customers overcome their challenges or capitalize on opportunities provided by the fast-changing world and secular trends.

Patterson added, “We have been on a multi-year journey to transform our portfolio and become a premier formulator of specialty and sustainable solutions. Every day we are making positive impacts across the sustainability spectrum, particularly with our growing portfolio of sustainable solutions for customers,” said Mr. Examples include: • Unique technologies that improve the recyclability of products and enable recycled content to be incorporated, thus advancing a more circular economy • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint • Sustainable infrastructure solutions that increase energy efficiency, renewable energy, natural resource conservation and fiber optic / 5G network accessibility Avient employs approximately 8,800 associates and is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®.

TEL:+31(0)102922689. www.dnvgl.com/assurance Page 2 of 2 Appendix to Certificate PolyOne-Shanghai, China Locations included in the certification are as follows: Site Name Site Address Site Scope PolyOne Polymer (Tianjin) Company Limited No.28#C, Jin Bin Hi-Tech Industrial Park, 156 Nan Hai Road, Tianjin Economic-Technological, Tianjin, China, 300457 Manufacture of Masterbatch PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z.

Zwolseweg 1, 2994 LB, Barendrecht, Netherlands - TEL: +31(0)102922689. www.dnv.com/assurance Page 2 of 2 Appendix to Certificate PolyOne-Shanghai, China Locations included in the certification are as follows: Site Name Site Address Site Scope PolyOne Polymer (Tianjin) Company Limited No. 28#C, Jin Bin Hi-Tech Industrial Park, No. 156, Nan Hai Road, Tianjin Economic- Technological Development Area, Tianjin, China 300457 Manufacture of Colour and Additive Concentrates PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z.

Patterson Chairman, President and Chief Executive Officer 2 HOME | TOC Our Vision and Strategy Vision At Avient, we create specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. The breadth and impact of our operations coupled with our high ethical standards require us to pursue highly sustainable solutions that stand the test of time. Pursuing sustainable solutions is not only the right thing to do for the environment; it is also the right thing to do for our associates, our customers, our neighbors, our shareholders, and our business.

NYSE: AVNT), a leading provider of specialized and sustainable materials solutions, today announced its third quarter 2024 results. NYSE: AVNT) provides specialized and sustainable materials 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

NYSE: AVNT), an innovator of materials solutions, today announced its first quarter results for 2025.   NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world.   In doing so, we innovate solutions that help our customers overcome their challenges or capitalize on opportunities provided by the fast-changing world and secular trends.

NYSE: AVNT), an innovator of materials solutions, today announced its fourth quarter and full year results for 2024. NYSE: AVNT) is to be an innovator of materials solutions that help our customers succeed, while enabling a sustainable world. In doing so, we innovate solutions that help our customers overcome their challenges or capitalize on opportunities provided by the fast-changing world and secular trends.

NYSE: AVNT), a leading provider of specialized and sustainable materials solutions, today announced its first quarter results for 2024. NYSE: AVNT) provides specialized and sustainable materials 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

Patterson said, “As the COVID-19 vaccine brings hope for a recovery from the pandemic, we anticipate our businesses will continue to benefit from new product development requiring sustainable solutions as well as demand for consumer and healthcare applications. About Avient Avient Corporation (NYSE: AVNT), with 2020 pro forma revenues of $3.8 billion, provides specialized and sustainable material solutions that transform customer challenges into opportunities, bringing new products to life for a better world. Examples include: • Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic • Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation • Breakthrough technologies that minimize wastewater and improve the recyclability of materials and packaging across a spectrum of end uses Avient employs approximately 8,400 associates and is certified ACC Responsible Care®, a founding member of the Alliance to End Plastic Waste and certified Great Place to Work®.