Employees 4 Sole shareholder Name Clariant Plastics & Coatings AG Visiting address Rothaustrasse 61, CH-4132 Muttenz 1, Switzerland Registered in Handelsregister Basel-Landschaft, Switzerland This extract has been certified with a digital signature and is an official proof of registration in the Business Register. The Chamber of Commerce recommends that this document be viewed in digital form so that its integrity is safeguarded and the signature remains verifiable. 20 21 -0 4- 12 1 4: 06 :2 8 under number CHE-112.279.714 Sole shareholder since 20-10-2015 (registration date: 03-11-2015) Board members Name Borst, Rainer Erich Date of birth 10-10-1961 Date of entry into office 01-07-2020 (registration date: 06-07-2020) Title Director Powers Solely/independently authorised Name Kamalak, Ihsan Date of birth 21-08-1985 Date of entry into office 01-07-2020 (registration date: 06-07-2020) Title Director Powers Solely/independently authorised Name Merklein, Norbert Date of birth 03-05-1964 Date of entry into office 05-03-2021 (registration date: 30-03-2021) Powers Solely/independently authorised Extract was made on 12-04-2021 at 14.06 hours. This extract has been certified with a digital signature and is an official proof of registration in the Business Register.

Minimum requirements are adopted from the ISO 9001 standard. Avient requires a Certification of Analysis (COA) and supplier specification documents for every shipment of raw material. Avient categorization for a “supplier” FDA Food & Drug Administration IATF International Automotive Task Force Interested Party Term referenced in ISO 9001.

§ 1307) and Trade Facilitation and Enforcement Act of 2015 (TFTEA), the applicable provisions of the Uyghur Forced Labor Prevention Act (UFLPA), the modern slavery and human trafficking provisions of the UK Modern Slavery Act 2015, and the OECD Guidelines for Multinational Enterprises. Ethics and Governance • Conduct all commercial negotiations in a responsible, ethical, and lawful manner. • Have appropriate licenses, registrations and certifications required to conduct business in the locations where you operate. • Provide all proposals in writing with a direct copy of business correspondence to the appropriate sourcing and procurement professionals. • Refrain from offering Avient employees money, loans, credit, prejudicial discounts, gifts, products or services for their personal use or benefit.

§ 1307) and Trade Facilitation and Enforcement Act of 2015 (TFTEA), the applicable provisions of the Uyghur Forced Labor Prevention Act (UFLPA), the modern slavery and human trafficking provisions of the UK Modern Slavery Act 2015, and the OECD Guidelines for Multinational Enterprises. Ethics and Governance • Conduct all commercial negotiations in a responsible, ethical, and lawful manner. • Have appropriate licenses, registrations and certifications required to conduct business in the locations where you operate. • Provide all proposals in writing with a direct copy of business correspondence to the appropriate sourcing and procurement professionals. • Refrain from offering Avient associates money, loans, credit, prejudicial discounts, gifts, products or services for their personal use or benefit.

Brown: Please be advised that the office of the Secretary of State has reviewed your pre- clearance request for the Certificate of Amendment for PolyOne Corporation. If you wish to expedite the amendment certificate the fees are listed. NOW, THEREFORE, BE IT RESOLVED, that, effective as of the time and date that the applicable certificate is accepted for filing by the Ohio Secretary of State (the “Effective Time”), the name of the Company shall be changed from “PolyOne Corporation” to “Avient Corporation.”

October 13, 2015 October 27, 2015 at 8:00 a.m. ET, October 27, 2015

Limited PO Box 2137, Jeddah 22758, Saudi Arabia Has been assessed and found to meet the requirements of ISO 45001:2018 This certificate is valid for the following scope of operations: Production and Supply of Color and Additive Master Batches Authorised by: Stan Wright Director Date of Certificate Issue: 30 December 2021 Certificate Valid Until: 29 December 2024 Recertification audit before 30 November 2024. This certificate is the property of DAS Certification Ltd and remains valid subject to satisfactory annual Surveillance audits. DAS Certification Ltd Certificate Number: DAS 47648113/31/OU Rev: 001 Registration House, 22b Church Street, Rushden, Northamptonshire, NN10 9YT, UK Tel: +44 (0) 1933 381859 Email: enquiries@dascertification.co.uk Web: www.dascertification.co.uk mailto:enquiries@dascertification.co.uk http://www.dascertification.co.uk/

What Quality Certifications do you maintain? Refer to our website to view certifications: http://www.avient.com/company/policies-and- governance/global-iso-certificate-library Who is Avient’s assessment body/registrar? This document is property of Avient Corporation and may not be reproduced or communicated to third parties without authorization. 12.0 Quality Details & Revision Control Definitions and Acronyms Term Definition ISO International Standards Organization QMS Quality Management System LSS Lean Six Sigma FDM Food, Drug, Medical GMP Good Manufacturing Practices TSCA Toxic Substance Control Act Food Allergens Food Allergens Include; Soy, Shellfish, Egg, Peanut, and Dairy CoA Certificate of Analysis CoC Certification of Conformance BoL Bill of Lading IATF International Automotive Task Force NDA Non-Disclosure Agreement ISO 9001 : 2015 Quality Management system requirements IATF 16949 : 2016 Quality management system requirements for automotive production and relevant service parts organization ISO 13485 : 2016 Medical devices—quality management systems requirements for regulatory purposes

RC14001®:2015 The Environmental, Health, Safety and Security Management System is applicable to: Certificate No: 65536 Certification Date: 29 September 2023 Effective Date: 22 March 2024 Expiration Date: 28 February 2025 Revision Date: 22 March 2024 Dominic Townsend, President CORPORATE SUPPORT ACTIVITIES, DESIGN, MANUFACTURE AND DISTRIBUTION OF COLOUR AND ADDITIVE CONCENTRATES, THERMOPLASTIC RESINS AND PELLETS, SPECIALTY COMPOUNDS AND COLORANTS. Certificate Of Conformance This is to confirm that the Environmental, Health, Safety and Security Management System of: has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: RC14001®:2015 The Environmental, Health, Safety and Security Management System is applicable to: The validity of this certificate is contingent upon maintenance of multi-site certificate 65536 issued to Avient Corporation Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof. Certificate Of Conformance This is to confirm that the Environmental, Health, Safety and Security Management System of: has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: RC14001®:2015 The Environmental, Health, Safety and Security Management System is applicable to: The validity of this certificate is contingent upon maintenance of multi-site certificate 65536 issued to Avient Corporation Validity of this certificate is based on the successful completion of the periodic surveillance audits of the management system defined by the above scope and is contingent upon prompt,written notification to ABS Quality Evaluations, Inc. of significant changes to the management system or components thereof.

Franken Managing Director Registration number 1682419.2 Start date certificate 0610312025 Certificate valid until 2810212028 Date of first certificate 2810212019 Previous certificate valid until 2810212025 Date audit 0411212024 – 1211212024 Certificate for the environmental management system according to NENNENNENNEN1111ENENENEN1111ISOISOISOISO 14141414001:001:001:001:2015201520152015 including the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schemaincluding the current version of the underlying SCCM schema The certification body TÜV NORD Nederland hereby confirms that the certification 1682419.20610312025 took place in accordance with its certification regulations for the organisations 28102120282810212019 FiberFiberFiberFiber1111Line International B.V.Line International B.V.Line International B.V.Line International B.V. The certification is subject to annual evaluation by TÜV NORD Nederland.