Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. For certificates issued in the People's Republic of China information may also be verified on the CNCA website (www.cnca.gov.cn). WITH ADDITIONAL FACILITIES LISTED ON ATTACHED ANNEX) Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: Page 2 of 2 ABS Quality Evaluations Avient Corporation ISO 13485:2016 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

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: 54139 Certification Date: 04 September 2019 Effective Date: 29 August 2022 Expiration Date: 01 September 2025 Revision Date: 29 August 2022 Dominic Townsend, President This certificate may be found on the ABS QE Website (www.abs-qe.com). COMPOUND, SUPPLY AND PROTOTYPING SERVICES OF THERMOPLASTICS FOR THE MEDICAL DEVICE INDUSTRY Certificate Of Conformance

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 - ISO 9001 - Avient Corporation - 337726 - 23521667 (1).pdf

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).

Certificate - ISO 9001 - Avient Corporation - Avon Lake, OH - 337726 - 23521667 (3).pdf

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.

IATF Certificate Place and date: For the issuing office: Katy, TX, 22 May 2025 Revision 10 DNV - Business Assurance 1400 Ravello Drive, Katy, TX, 77449- 5164, USA Sherif Mekkawy Management Representative Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ACCREDITED UNIT: DNV Business Assurance USA Inc., 1400 Ravello Drive, Katy, TX, 77449-5164, USA - TEL: +1 281-396-1000. www.dnv.com Page 1 of 2 MANAGEMENT SYSTEM CERTIFICATE Certificate no.: 11229-2006-CHN-IATF IATF Certificate No: 0573810 Valid: 21 May 2025 – 20 May 2028 This is to certify that the management system of PolyOne - Suzhou, China EM Sector, 77 Shenggang Street, Suzhou Industrial Park, Suzhou, Jiangsu, China 215024 (USI: CF4943) and, if applicable, the remote supporting locations as mentioned in the Appendix accompanying this Certificate has been found to conform to the Quality Management System standard: IATF 16949:2016 This certificate is valid for the following scope: DESIGN AND MANUFACTURE OF PLASTIC COMPOUNDING MATERIAL EXCLUSION: NONE http://www.dnv.com Certificate no.: 11229-2006-CHN-IATF IATF Certificate No: 0573810 Place and date: Katy, TX, 22 May 2025 Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. ACCREDITED UNIT: DNV Business Assurance USA Inc., 1400 Ravello Drive, Katy, TX, 77449-5164, USA - TEL: +1 281-396-1000. www.dnv.com Page 2 of 2 Appendix to Certificate PolyOne - Suzhou, China Remote Support Locations included in the certification are as follows: Site Name Site Address RSL Activities Certification Body Avient China Co., Ltd.

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).