ABS Quality Evaluations Certificate Of Conformance This is to certify that the Quality Management System of: PolyOne España SL Sociedad Unipersonal Pol. Certificate No: 39033 Certification Date: 01 August 2006 Effective Date: 31 May 2018 Expiration Date: 25 July 2021 Issue Date: 31 May 2018 Alex Weisselberg, President 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. Copyright 2011-2018 ABS Quality Evaluations, Inc.

ECert (75).pdf ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Copyright 2011-2021 ABS Quality Evaluations, Inc. Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. Copyright 2011-2018 ABS Quality Evaluations, Inc. IATF 16949:2016 The Quality Management System is applicable to: Certificate No: 38223 Effective Date: 03 July 2018 Expiration Date: 02 July 2021 Issue Date: 03 July 2018 IATF No: 0313794 Alex Weisselberg, President DESIGN AND COMPOUNDING OF THERMOPLASTIC PRODUCTS (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 PolyOne Corporation IATF 16949:2016 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. Toluca 2000 Toluca, Estado de México 50233 México IATF 16949:2016 The Quality Management System is applicable to: Certificate No: 63431 Effective Date: 25 February 2022 Expiration Date: 24 February 2025 Revision Date: 25 February 2022 IATF No: 0444538 Dominic Townsend, President DESIGN AND MANUFACTURE OF COLOR CONCENTRATES (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 de México, S.A. de C.V. IATF 16949:2016 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

Microsoft Word - Polyone Barbastro_ISO 14001_2015_EXP 2021_0.docx ABS Quality Evaluations Certificate Of Conformance This is to certify that the Environment Management System of: PolyOne España SL Sociedad Unipersonal Pol. ABS Quality Evaluations, Inc. 16855 Northchase Drive, Houston, TX 77060, U.S.A. Copyright 2011-2018 ABS Quality Evaluations, Inc.

ECert (3).pdf ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Copyright 2011-2023 ABS Quality Evaluations, Inc. Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

ECert (5).pdf ABS Quality Evaluations ABS Quality Evaluations, Inc. 1701 City Plaza Drive, Spring, TX 77389, U.S.A. Copyright 2011-2023 ABS Quality Evaluations, Inc. Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

page=19 7 Quality Management 3rd Party Certifications All manufacturing facilities are certified to the ISO 9001 standard. We use a set of formal quality tools and systems in evaluating and tracking quality complaints. The Quality Control Record is reviewed by authorized Quality Control personnel before the batch release takes place.

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. CNAS C001-M i�,i� Signed by: Xie Zhaoxu MEMBER OF ••••• . . . . .... . .. ·.•······ . . . . . . . � IQNET CHINA QUALITY CERTIFICATION CENTRE Section 9, No.188, Nansihuan(the South Fourth Ring Road) Xilu(West Road), Beijing 100070, China http://www.cqc.com.cn A 0082281 2022.$!

Normative basis EN ISO 13485:2016 Medical devices – Quality Management System Reg. no. Müller, CEO sqs.ch Swiss Made Member of Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland Appendix of main certificate H61173 Avient Switzerland GmbH Hauptstrasse 30 4127 Birsfelden Switzerland Central function Scope Norm / Revision Reg. no. Müller, CEO sqs.ch Swiss Made Member of Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland Appendix of main certificate H61173 Avient Switzerland GmbH Hauptstrasse 30 4127 Birsfelden Switzerland Locations Scope Norm / Revision Reg. no.