Certificate Number: 13132875 Certified Since: November 19, 2019 * Certificate Approval Date (Date Granted, Reduced, Extended, or Renewed): October 12, 2022 Current Certification Cycle Start Date: November 19, 2022 Current Certification Cycle Expiration Date: November 18, 2025 Rev: B This certification is subject to the organization maintaining its management system to the requirements of ISO 9001:2015 as well as the requirements of Platinum Registration, Inc.

Numéro d'immatriculation : B226205 Date d'immatriculation 24/07/2018 Dénomination ou raison sociale Avient S.à r.l. Durée du mandat Date de nomination 05/07/2018 Durée du mandat Indéterminée Personne(s) chargée(s) du contrôle des comptes ERNST & YOUNG [2] ERNST & YOUNG N° d'immatriculation au RCS B47771 Dénomination ou raison sociale ERNST & YOUNG Forme juridique Société anonyme Siège social Numéro 35E Rue Avenue John F. Kennedy Code postal 1855 Localité Luxembourg Pays Luxembourg Type de mandat Réviseur d'entreprises agréé Durée du mandat Date de nomination 01/07/2021 Durée du mandat Déterminée Date d'expiration du mandat 01/07/2024 Page 5 / 5 B226205 Pour extrait conforme [3] Luxembourg, le 16/11/2021 Pour le gestionnaire du registre de commerce et des sociétés [4] [1] Information mise à jour mensuellement sur base de l'article 12§3 de la loi modifiée du 19 décembre 2002 concernant le registre de commerce et des sociétés ainsi que la comptabilité et les comptes annuels des entreprises

Click on it to view the PO Order Date Date PO was created Status Current status of the PO. When you select the checkbox, the current date appears in the “Acknowledged At” column. If you re-acknowledge at a later time, the new date will appear.

ISO 13485:2016 The Quality Management System is applicable to: Certificate No: 45324 Certification Date: 24 February 2014 Effective Date: 13 January 2023 Expiration Date: 23 January 2026 Revision Date: 13 January 2023 Dominic Townsend, President DESIGN, MANUFACTURE AND DISTRIBUTION OF THERMOPLASTIC ELASTOMER RESINS & PELLETS FOR THE MEDICAL DEVICE INDUSTRY This certificate may be found on the ABS QE Website (www.abs-qe.com).

Date Of Certification: 11 December 2024 Date Of Expiration: 10 December 2027 IATF Certificate N°: 0558656 Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1 For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France (The official document is in English. Any translations of this document shall be used for reference only.) 1/2 Certificate of Approval AWARDED TO PolyOne France Tossiat Route de la vavrette, 01250, Tossiat - France IATF USI: LWZS4P Bureau Veritas Certification certify that the Quality Management System of the above organisation has been audited and found to be in accordance with the requirements of IATF 16949 - FIRST EDITION and the applicable customer specific requirements SCOPE Design and manufacturing PERMITTED EXCLUSION(S) None PRODUCT(S) DELIVERED colour with additive concentrates for thermoplastic resins and speciality compounds obtained by mixing and extrusion https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX Date Of Certification: 11 December 2024 Date Of Expiration: 10 December 2027 IATF Certificate N°: 0558656 Bureau Veritas Certification Certificate No: FR094003 - IATF Revision: 1 For Bureau Veritas Certification Holding, Tour ALTO, 4 place des saisons, 92400 COURBEVOIE – France (The official document is in English.

RC14001®:2015 Certificate No: 55334 Effective Date: 30 October 2017 Expiration Date: 29 October 2020 Issue Date: 30 October 2017 Alex Weisselberg, President DESIGN AND MANUFACTURE OF COLOR CONCENTRATES Certificate Of Conformance has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by:

Magyarországi Fióktelepe Date of change: 2021/11/24 Date of registration: 2021/12/06 Effective: 2021/11/24 ... 3. Hungary Branch Date of change: 2021/11/24 Date of registration: 2021/12/06 Effective: 2021/11/24 ... 5. Date of the deed of foundation 8/1. 31 July 2018 Date of registration: 2018/08/21 Published: 2018/08/23 Effective: 2018/08/21 ... 8/2. 4 December 2019 Date of change: 2019/12/04 Date of registration: 2020/02/13 Published: 2020/02/15 Effective: 2019/12/04 ... 8/3. 24 November 2021 Date of change: 2021/11/24 Date of registration: 2021/12/06 Effective: 2021/11/24 ... 902.

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).

NOR AZIMAH BINTI ABDUL AZIZ REGISTRAR OF COMPANIES MALAYSIA (ACT 777) This is to certify that CERTIFICATE OF INCORPORATION ON CHANGE OF NAME OF COMPANY Dated at SEBERANG JAYA, PULAU PINANG this 25th day of August 2021. This certificate is generated from MYDATA SSM Services as at 31/08/2021 12:30:12 1 1/ Date: Tue Aug 31 12:30:12 2021 Printing Date: 31/08/2021User Id: mooileen

China Date of Issue：2024-10-26 Date of Expiry：2027-10-25 Date of Initial Issue：2021-10-28 证书编号 E受审核方 英文组织机构代码 E认证范围 E注册地址 E生产办公地址 E注册日期 E有效期至 E初次颁证日期 二维码