Colorant Chromatics™ and BASF Ultrason® high-performance polymers in metallic colors provided lightweight and food contact-approved colors solutions for molders

Certificate Number: CERT-0116814 Initial Certification Date: 24 November 2010 Date of Certification Decision: 25 March 2024 Issuing Date: 25 March 2024 Valid Until: 31 March 2027 Calin Moldovean President, Business Assurance Intertek Testing Services NA, Inc. dba Intertek, 4700 Broadmoor SE Suite 200 Kentwood, Michigan 49512, United States In the issuance of this certificate, Intertek assumes no liability to any party other than to the Client, and then only in accordance with the agreed upon Certification Agreement. This certificate’s validity is subject to the organization maintaining their system in accordance with Intertek’s requirements for systems certification. The certificate remains the property of Intertek, to whom it must be returned upon request.

MSC Certificate Place and date: For the issuing office: Shanghai, 20 March 2024 DNV - Business Assurance Building 9, No. 1591 Hongqiao Road, Changning DistrictShanghai China 200336 Zhu Hai Ming Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ACCREDITED UNIT: DNV Business Assurance B.V., Zwolseweg 1, 2994 LB, Barendrecht, Netherlands - TEL: +31(0)102922689. www.dnv.com/assurance MANAGEMENT SYSTEM CERTIFICATE Certificate no.: 1614-2000-AE-RGC-RvA Initial certification date: 23 May 2000 Valid: 24 May 2024 – 23 May 2027 This is to certify that the management system of PolyOne-Shanghai, China No. 88, Guo Shou Jing Road, Z. Park, China (Shanghai) Pilot Free Trade Zone, Shanghai, China 201203 has been found to conform to the Environmental Management System standard: ISO 14001:2015 This certificate is valid for the following scope: Design and Manufacture of Colour and Additive Concentrates http://www.dnv.com/assurance

MSC Certificate Place and date: For the issuing office: Høvik, 23 January 2025 DNV Product Assurance AS Veritasveien 1, 1363 Høvik, Norway Cecilie Gudesen Torp Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ICP-4-5-i5-ISO13485-f1 rev2 ACCREDITED UNIT: DNV Product Assurance AS, Veritasveien 1, 1363 Høvik, Norway - TEL: +47 67 57 99 00. www.dnv.com MANAGEMENT SYSTEM CERTIFICATE Certificate no.: 240625-2017-AQ-RGC-NA-PS Initial certification date: 14 September 2017 Valid: 08 February 2025 – 07 February 2028 This is to certify that the management system of PolyOne-Shanghai, China 88 Guoshoujing Road, Z.J.Hi-Tech Park, Pudong Shanghai, China (Unicode: 91310000607342402D) has been found to conform to the Quality Management System standard: ISO 13485:2016 This certificate is valid for the following scope: Design, Manufacture, Sales and Distribution of Medical Colour and Additive Concentrates Used for the Plastic Parts of Medical Devices http://www.dnv.com

We are proud to share that our associates feel we are a Great Place to Work® and, in 2023, we received our fifth certification. Management has no authority to approve services performed by EY that have not been pre-approved by the Audit Committee. The term of any pre-approval is 12 months from the date of pre-approval, unless the Audit Committee specifically provides for a different period.

We are proud that our employees feel we are a Great Place to Work®, and in 2024, we received our sixth certification. Management has no authority to approve services performed by EY that have not been pre-approved by the Audit Committee. The term of any pre-approval is 12 months from the date of pre-approval, unless the Audit Committee specifically provides for a different period.

Number: BC1228188 CERTIFICATE OF CHANGE OF NAME BUSINESS CORPORATIONS ACT I Hereby Certify that POLYONE CANADA ULC changed its name to AVIENT CANADA ULC on January 15, 2021 at 12:13 PM Pacific Time. Issued under my hand at Victoria, British Columbia On January 15, 2021 CAROL PREST Registrar of Companies Province of British Columbia Canada ELECTRONIC CERTIFICATE

Seller warrants good and clear title in goods subject to the sale (“Product”) and that the Product conforms at the time of shipment to a Certificate of Analysis or a Certificate of Compliance, if either such document exists, and other specifications signed by Seller (“Specifications”). Unless otherwise agreed in a writing signed by Seller, Seller may make changes to its Product and process without notice to, or approval from, Buyer so long as the Product Specifications are not impacted by the change. 14.

To provide guidance on ethical business conduct, the board has approved a code of business conduct and a code of ethics and communicated their requirements to everyone within Avient.

Food contact approval documentation available upon request