F-27, MIDC, Ranjangaon, Shirur, Pune, Maharashtra 412 220 India ISO 14001:2015 The Environmental Management System is applicable to: Certificate No: 55688 Certification Date: 15 March 2017 Effective Date: 09 March 2023 Expiration Date: 14 March 2026 Revision Date: 21 March 2023 Dominic Townsend, President DESIGN MANUFACTURE OF COLOR MASTER BATCHES, ADDITIVES CONCENTRATES AND SPECIALTY COMPOUNDS This certificate may be found on the ABS QE Website (www.abs-qe.com).

AVIENT BELGIUM 2, RUE MELVILLE WILSON 5330 ASSESSE- BELGIUM Bureau Veritas Certification France certify that the Management System of the above organization has been audited and found to be in accordance with the requirements of the management system standard detailed below: Standard ISO 14001 : 2015 Scope of certification DESIGN AND MANUFACTURE OF COLOUR AND ADDITIVE CONCENTRATES, THERMOPLASTIC RESINS AND SPECIALITY COMPOUNDS.

POLYONE FRANCE TOSSIAT 43, PLACE DE LA GARE 01250 TOSSIAT FRANCE Bureau Veritas Certification France certify that the Management System of the above organization has been audited and found to be in accordance with the requirements of the management system standard detailed below: Standard ISO 14001:2015 Scope of certification THE DESIGN AND MANUFACTURE OF COLOUR AND ADDITIVE CONCENTRATES FOR THERMOPLASTICS Certification/Recertification Cycle Start Date: 03 May 2023 Subject to the continued satisfactory operation of the organization’s Management System, this certificate expires on: 02 May 2026 Expiry date of previous cycle: NA Certification/Recertification Audit date: 08 March 2023 Original Cycle Start Date: 15 July 2011 Certificate n°: FR081968-1 File n°:15608678 Revision date:24 April 2023 Laurent CROGUENNEC - President Local Office: Bureau Veritas Certification France Le Triangle de l'Arche - 9 Cours du Triangle - 92937 Paris La Défense Further clarifications regarding the scope of this certificate the applicability of the management system requirements may be obtained by consulting the organization.

Limited PO Box 2137, Jeddah 22758 Saudi Arabia Has been assessed and found to meet the requirements of ISO 14001:2015 This certificate is valid for the following scope of operations: Production and Supply of Color and Additive Master Batches Authorised by: Stan Wright Director Date of Certificate Issue: 20 December 2022 Certificate Valid Until: 19 December 2025 Recertification audit before 20 November 2025.

Limited PO Box 2137, Jeddah 22758 Saudi Arabia Has been assessed and found to meet the requirements of ISO 9001:2015 This certificate is valid for the following scope of operations: Production and Supply of Color and Additive Master Batches Authorised by: Stan Wright Director Date of Certificate Issue: 17 October 2022 Certificate Valid Until: 29 September 2025 Recertification audit before 30 August 2025.

F-27, MIDC, Ranjangaon, Shirur, Pune, Maharashtra 412 220 India ISO 45001:2018 The Occupational Health and Safety Management is applicable to: Certificate No: 55689 Certification Date: 15 March 2017 Effective Date: 09 March 2023 Expiration Date: 14 March 2026 Revision Date: 15 March 2023 Dominic Townsend, President DESIGN MANUFACTURE OF COLOR MASTER BATCHES, ADDITIVES CONCENTRATES AND SPECIALTY COMPOUNDS.

Park, China (Shanghai) Pilot Free Trade Zone, Shanghai, China 201203 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 Colour and Additive Concentrates http://www.dnv.com/assurance Certificate no.: 7071-1998-AQ-RGC-RvA Place and date: Shanghai, 20 March 2024 Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid.

ISO 9001:2015 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). 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 10 ABS Quality Evaluations Avient Corporation ISO 9001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation. Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Transport Activity: Administration, Site management, Manufacture, Laboratory, Procurement, Maintenance, Infrastructure, Warehouse and Transport Page 10 of 10 ABS Quality Evaluations Avient Corporation ISO 9001:2015 Certificate Of Conformance ANNEX At Below Facilities: Validity of this certificate may be confirmed at www.abs-qe.com/cert_validation.

AVIENT SOLUTION VEHICLE BATTERY MANUFACTURER C E L L P A C K C O O L I N G T U B E • Comply with ISO 3384-1:2011 for TPE compression set • Comply with ISO 11359-2:1999 standard for linear thermal expansion • Good ethanediol resistance • Good sealing performance • Customized a Shore 60A hardness TPE formulation with good physical property retention • Achieved good compression set and bonding performance with PA12 • Qualified thermal expansion by customer • Provided excellent ethanediol resistance under both low and high temperature conditions KEY REQUIREMENTS CHEMICAL RESISTANCE + SEALING LEARN MORE OnFlex™ TPE Custom Formulation Copyright © 2023, Avient Corporation.