MSC Certificate Place and date: For the issuing office: Shanghai, 27 April, 2022 DNV - Business Assurance Suite A, Building 9, No.1591 Hongqiao Road, Changning District, Shanghai 200336, P.R. ACCREDITED UNIT: DNV Business Assurance B.V., Zwolseweg 1, 2994 LB, Barendrecht, Netherlands - TEL: +31(0)102922689. www.dnv.com/assurance Certificate No: 2997-2006-AQ-RGC-RvA Initial certification date: 08 June, 2006 Valid: 11 April, 2022 – 11 April, 2025 This is to certify that the management system of Polyone - Suzhou, China EM Sector, 77 Shenggang Street, Suzhou Industrial Park, Suzhou, Jiangsu, China, 215024 and the sites as mentioned in the appendix accompanying this certificate has been found to conform to the Quality Management System standard: GB/T 19001-2016/ISO 9001:2015 This certificate is valid for the following scope: Design and Manufacture of Plastic Compounding Material Certificate No: 2997-2006-AQ-RGC-RvA Place and date: Shanghai, 27 April, 2022 Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid.

For more information on the Revolve tripod, visit https://revolve-tec.com/. To access Avient’s news library online, please visit https://www.avient.com/news-events. 

1BASF, “Kaolin” http://kaolin.basf.com/applications/ market/selected/plasticsandrubber 1Imerys Performance Minerals, Mica http://www.imerys-perfmins.com/mica/usa/mica.htm   2LKAB Minerals, MicaFort http://lkabminerals.com/Products/MicaFort 

Please verify this organization’s acceptance status by using the CPSC’s searchable database, located at http://www.cpsc.gov/cgi-bin/labsearch/. http://www.cpsc.gov/cgi-bin/labsearch/ For the tests to which this accreditation applies, please refer to the laboratory’s Chemical Scope of Accreditation. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017).

Please verify this organization’s acceptance status by using the CPSC’s searchable database, located at http://www.cpsc.gov/cgi-bin/labsearch/. http://www.cpsc.gov/cgi-bin/labsearch/ For the tests to which this accreditation applies, please refer to the laboratory’s Chemical Scope of Accreditation. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017).

The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media-server.com/mmc/p/p4owuchb.  

April 5, 2021 April 5, 2021

April 7, 2021 SHENZHEN, China – April 7, 2021 – Avient Corporation, a premier provider of specialized and sustainable material solutions and services, will feature its portfolio of sustainable materials and colorant technologies next week at Chinaplas 2021.

April 8, 2025 SINGAPORE – April 8, 2025 – Today, Avient Corporation, an innovator of materials solutions, announced that its production facility in the Chin Bee area of Jurong, Singapore, has received International Sustainability and Carbon Certification (ISCC) PLUS accreditation.

April 14, 2023 CLEVELAND – April 14, 2023 – Today, Avient Corporation announced the launch of its newly upgraded, advanced computer-aided engineering (CAE) capabilities.