NEWS RELEASE FOR IMMEDIATE RELEASE Avient Announces Registration Details for 2023 Sustainability Day CLEVELAND – August 28, 2023 – Avient Corporation (NYSE: AVNT), a leading provider of specialized and sustainable material solutions, has announced registration details for a virtual Sustainability Day for investment professionals on Wednesday, September 20, 2023, from 9 a.m. – 11 a.m. Beggs, Senior Vice President and Chief Financial Officer, Avient Corporation. To access Avient’s news library online, please visit www.avient.com/news # # # Investor Relations Contact: Giuseppe (Joe) Di Salvo Vice President, Treasurer and Investor Relations +1 440-930-1921 giuseppe.disalvo@avient.com Media Contact: Kyle G.

质量管理体系认证认证 Certificate No.：04621Q16559R0S We hereby certify that the organization: Fiber-Line Asia Pacific (Changzhou) Co., Ltd. Unified social credit code: 91320412MA1NMF5W4P is in conformity with Quality Management System Standard: GB/T19001-2016 / ISO9001:2015 The certificate is valid to the following product(s)/service: Textile (Yarn), Glass Products (Yarn) Coating Processing Registration Address/ Physical Address: R&D Workshop 5, No. 8, Lanxiang Road, West Taihu Science and Technology Industrial Park, Changzhou City, Jiangsu Province, P.

Marketing Manager Healthcare Global for Color & Additives in Avient. About Avient Our local touch and customer engagement, combined with our global presence, allows us to serve customers with agility.

Our site in Malmö, Sweden, received the ISCC PLUS certification for its bio-based concentrates and ready-to-use formulations manufactured following the mass balance chain-of-custody approach. Raw materials tested to ISO 10993-1, USP and (class VI), USP , European Pharmacopeia monographs 3.1.3 and 3.1.5, ICH Q3D Browse and download our literature to learn more about Avient solutions and services.

Browse and download our literature to learn more about Avient solutions and services. See our extensive library of resources about our growing company. Avient Wire & Cable Industry Bulletin

Browse and download our literature to learn more about Avient solutions and services. See our extensive library of resources about our growing company.

Browse and download our literature to learn more about Avient solutions and services. See our extensive library of resources about our growing company.

Browse and download our literature to learn more about Avient solutions and services. See our extensive library of resources about our growing company.

Browse and download our literature to learn more about Avient solutions and services. See our extensive library of resources about our growing company.

Browse and download our literature to learn more about Avient solutions and services. See our extensive library of resources about our growing company.