Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. ISO 13485:2016 The Quality Management System is applicable to: Certificate No: 65567 Effective Date: 08 September 2023 Expiration Date: 07 September 2026 Revision Date: 08 September 2023 Dominic Townsend, President This certificate may be found on the ABS QE Website (www.abs-qe.com). MANUFACTURE OF COLORANTS FOR PLASTICS FOR THE MEDICAL DEVICE INDUSTRY Certificate Of Conformance

CERTIFICATE Signed for the certification body: Eric Louys Chairman Certification Committee CERTIFICATE EN ISO 50001 : 2018 Energy Management System VINÇOTTE nv Jan Olieslagerslaan 35, 1800 Vilvoorde, Belgium This is to certify that Avient Located at Rue Melville Wilson 2 5330 Assesse Belgium has established and maintains an energy management system according the requirements of EN ISO 50001 : 2018 “Energy Management System” for: Design and manufacture of colour and additive concentrates, thermoplastic resins and speciality compounds This certificate is based on the result of an energy audit documented in the audit report 61231731. Certificate number: 24 EN 47 Valid from 1 February 2024 to 31 January 2027 Further clarifications regarding the scope of this certificate and the applicability of EN ISO 50001 : 2018 requirements may be obtained by consulting the organization. This certificate is granted during the Certification Commission of 1 February 2024 and is subject to the General Regulations of VINÇOTTE nv.

Disposer des licences, immatriculations et certifications appropriées requises pour mener des activités dans les lieux où vous les exercez Les registres comptables doivent être disponibles sur demande pour Avient

ECert - 2023-09-26T122339.151.pdf Page 1 of 10 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. This is to certify that the Quality Management System of: Avient Corporation - Avon Lake 33587 Walker Road Avon Lake, OH 44012 The Quality Management System is applicable to: Certificate No: 65799 Certification Date: 01 October 2020 Effective Date: 25 September 2023 Expiration Date: 30 September 2026 Revision Date: 26 September 2023 Dominic Townsend, President DESIGN AND MANUFACTURE OF COLOUR AND ADDITIVE CONCENTRATES, THERMOPLASTIC RESINS AND SPECIALTY COMPOUNDS This certificate may be found on the ABS QE Website (www.abs-qe.com). For certificates issued in the People's Republic of China information may also be verified on the CNCA website (www.cnca.gov.cn).

ECert - 2023-09-20T092923.129.pdf Page 1 of 7 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. This is to certify that the Quality Management System of: Avient Corporation - HQ 33587 Walker Road The Quality Management System is applicable to: Certificate No: 31307 Certification Date: 12 October 1995 Effective Date: 20 September 2023 Expiration Date: 07 October 2025 Revision Date: 20 September 2023 Dominic Townsend, President MANUFACTURE AND SUPPLY OF PLASTIC COMPOUNDS, COLOR AND PERFORMANCE ADDITIVES, ENGINEERED THERMOPLASTICS, VINYL RESINS, CUSTOM MIXED PLASTIC MATERIALS, CUSTOM AND COMMODITY COLORANTS FOR PLASTICS, POLYURETHANE SYSTEMS, AND PLASTICIZERS WITH DESIGN AND SAMPLING SUPPORT AT SUWANEE, GA, AND PURCHASING, CUSTOMER SERVICE, LOGISTICS, QUALITY, DESIGN AND SAMPLING SUPPORT AT AVIENT CORPORATE HEADQUARTERS AT AVON LAKE, OH, AND DISTRIBUTION OF RESINS This certificate may be found on the ABS QE Website (www.abs-qe.com). For certificates issued in the People's Republic of China information may also be verified on the CNCA website (www.cnca.gov.cn).

Certificate Number: 255 ISO2P Date First Registered: 03/04/2023 Issued on: 11/04/2023 Valid until: 10/04/2026 Awarded to AVIENT PAKISTAN (PVT) LTD 1A/1, Sector#20, Korangi Industrial Area, Sector 20 Karachi, Pakistan In recognition of the Organization´s Food Safety Management System which complies with : ISO 22000:2018 Food Category : I For the scope of activities described below: Manufacturing & Processing of Polymer Resins & Master batch F-3/22/ A 100 Issue date : 06/2022 Version:03 It is mandatory to carry out the surveillance audit on its time.

Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. validitystatement1: 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. FACILITY1_LINE4: FACILITY1_LINE5: FACILITY1_LINE6: STANDARD: ISO 13485:2016 MANAGEMENT_TYPE2: The Quality Management System is applicable to: DATE_LABEL_1TF: DATE_VALUE_1TF: DATE_LABEL_2TF: DATE_VALUE_2TF: DATE_LABEL_3TF: Certificate No: DATE_VALUE_3TF: 54139 DATE_LABEL_4TF: Certification Date: DATE_VALUE_4TF: 04 September 2019 DATE_LABEL_5TF: Effective Date: DATE_VALUE_5TF: 01 September 2016 DATE_LABEL_6TF: Expiration Date: DATE_VALUE_6TF: 01 September 2022 DATE_LABEL_7TF: Revision Date: DATE_VALUE_7TF: 04 September 2019 MARK_3: MARK_2: SIGNATURE_NAME: Dominic Townsend, President SIGNATURE_IMAGE: 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 AUDIT_COMPLIANCE: MARK_1: SCOPE_DESCRIPTION: DESIGN, COMPOUND AND SUPPLY OF THERMOPLASTICS FOR THE MEDICAL DEVICE INDUSTRY.

CERTIFICATE CONFIRMING INCORPORATION OF COMPANY AVIENT SINGAPORE PTE.

MSC Certificate Place and date: For the issuing office: Shanghai, 12 June 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.: 462307-2021-AQ-RGC-RvA Initial certification date: 23 June 2021 Valid: 24 June 2024 – 23 June 2027 This is to certify that the management system of Avient China Company Limited No. 188, Quanzhou Road, Zhongxin Suchu High-Tech Industrial Development Park, Chuzhou, Anhui, China 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 Color Concentrates, Filling Concentrates and Additive Concentrates http://www.dnv.com/assurance

Company number: 08-17-000066 Registered by the Court of Registration of Győr Tribunal. 2/4 https://occsz.e-cegjegyzek.hu/IMOnline? Registration number: B226205 2. At the date of issue, the provided data are identical with the data of the company registration system.