China TEL: +86 21 32799000 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 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. ACCREDITED UNIT: DNV Business Assurance B.V., Zwolseweg 1, 2994 LB, Barendrecht, Netherlands - TEL: +31(0)102922689. www.dnv.com/assurance Page 2 of 2 Appendix to Certificate Polyone - Suzhou, China Locations included in the certification are as follows: Site Name Site Address Site Scope PolyOne Management (Shanghai) Co., Ltd.

Minimum requirements are adopted from the ISO 9001 standard. This document is property of Avient Corporation and may not be reproduced or communicated to third parties without authorization. 6.0 References Document Title Description IATF 16949 Automotive Quality Standard ISO 9001 International Quality Standard ISO 13485 Healthcare Quality Standard QF-05 Supplier Self-Assessment Audit Form QS-05 Control of External Providers Procedure 7.0 Definitions and Acronyms Term Definition Audit Examination and evaluation of an organization’s products and processes CAPA Corrective Action Preventive Action: Evaluation process used to eliminate the cause of a non- conformance or issue COA Certificate of Analysis Containment Isolation of nonconforming material to prevent the shipment of product, and measures taken to prevent the manufacture of additional product containing the non-conformance Corrective Action Actions taken to eliminate the causes of a nonconformance to prevent recurrence External Provider Term referenced in ISO 9001. Avient categorization for a “supplier” FDA Food & Drug Administration IATF International Automotive Task Force Interested Party Term referenced in ISO 9001.

Homepage // News Center // Avient Attains ACC Responsible Care® 14001 Global Certification for Environmental, Health, Safety, and Security Excellence Obtaining the RC14001® certification is unique as it encompasses security, product safety, and transportation elements, setting itself apart from the individual ISO 14001 and ISO 45001 certifications.”   Additionally, this certification follows Avient’s recent Gold Rating certification achievement from EcoVadis, a globally renowned sustainability ratings platform, for its dedication to sustainability, ethics, and responsible business practices.  

Industrial Valle del Cinca s/n Apartado 18 22300 Barbastro, Huesca Spain has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: DEVELOPMENT, PRODUCTION & DISTRIBUTION OF TECHNICAL THERMOPLASTICS. This certificate may be found on the ABS QE Website (www.abs-qe.com). Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

Certain facilities have also received official certification to the ISO 14001 by third-party ISO representatives. page=19 7 Quality Management 3rd Party Certifications All manufacturing facilities are certified to the ISO 9001 standard. Some have additional certifications such as ISO 13485, ISO 14000, ISO 22000 and other third-party certified standards such as Responsible Care® and IATF.

There is one ISO 9001 certificate whose scope covers 27 sites and support functions in North America. Yes, as part of the central certification ISO 9001 documentation. Yes, as part of the ISO 9001 documentation. 8.

CNSUZ3-SUH9-20240123104552 QUALITY MANAGEMENT SYSTEM\,, CERTIFICATE Certificate No. 00124Q30506R5S/3200 We hereby certify that Color Matrix Plastic Colorants (Suzhou) Co., Ltd Business Registration Number: 91320505799067336K Registered I Operation Address: 13 Plant, No.855, Zhujiang Road, Suzhou New District, Jiangsu Province, China by reason of its Quality Management System has been awarded this certificate for compliance with the standard ISO 9001:2015 The Quality Management System Applies in the following area: Production Activities of Plastic Colorant & Additive (UV Blockers, Anti-Oxidation, Anti-Aging) Certified since: January 8, 2009 Valid from: January 16, 2024 Valid until: January 4, 2027 the expiry date of last certification cycle: January 4, 2024 the date of recertification audit: December 21, 2023 to December 22, 2023 After a surveillance cycle, the certificate is valid only when used together with an Acceptance Notice of Surveillance Audit issued by CQC. Please access www.cqc.com.cn for checking validity of the certificate. This certificate and its relevant information can query in the website of Certification and Accreditation Administration of the People's Republic of China ( www.cnca.gov.cn). � 'Pf.ili>..P]' GNAs:::� � MANAGEMENT SYSTEM ...,,._.....

Homepage // News Center // Avient’s Malmö, Sweden Site Earns ISCC PLUS Certification for Mevopur™ Healthcare Bio-based Polymer Solutions Like other Mevopur products, the bio-based polymer solutions are formulated with raw materials pre-tested to ISO, USP, EP, and ICH Q3D protocols, supporting their compliance with safety and regulatory requirements for use in healthcare.   In Europe, Mevopur concentrates and ready-to-use formulations are manufactured in the ISO 13485-2016 certified site of Malmö, Sweden.

Homepage // News Center // Avient’s Singapore Production Facility Receives ISCC PLUS Certification for Bio-Derived Materials The ISCC PLUS certification uses a mass balance chain-of-custody approach, which involves third-party accounting and tracking of the bio-sourced content in materials. This certification, in conjunction with the facility’s existing ISO 22000-certified Food Safety Management System and ISO 13485-certified Quality Management System for medical devices, also positions the Chin Bee site to meet stringent hygiene and regulatory requirements for products for mothers and children, food-contact packaging, and the medical and pharmaceutical industries.

Francisco Nakasato, 1700 Bairro São Roque das Chaves Itupeva, SP 13295-000 Brasil ISO 9001:2015 O Sistema de Gestão da Qualidade é aplicável a: Certificado No: 49862 Data de Expiração Anterior: 09 Abril 2020 Data de Aprovação Original: 16 Abril 2014 Data de Certificação: 13 Abril 2020 Data Efetiva: 06 Abril 2023 Data de Expiração: 09 Abril 2026 Data de Emissão: 06 Abril 2023 Dominic Townsend, Presidente DEVELOPMENT, PRODUCTION, SALES AND TECHNICAL ASSISTANCE OF LIQUID COLORANTS, COLORS CONCENTRATES AND ADDITIVES FOR THE PLASTICS, FIBERS AND RUBBER MARKET IN GENERAL DESENVOLVIMENTO, PRODUÇÃO, VENDAS E ASSISTÊNCIA TÉCNICA DE COLORANTES LÍQUIDOS, CONCENTRADOS DE CORES E ADITIVOS PARA O MERCADO DE PLÁSTICOS, FIBRAS E BORRACHAS EM GERAL.