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. Any translations of this document shall be used for reference only.) 2/2 Appendix to the Certificate of Approval AWARDED TO PolyOne France Tossiat Route de la vavrette, 01250, Tossiat - France IATF USI: LWZS4P REMOTE SUPPORT FUNCTION(S) NAME ADDRESS SCOPE AVIENT LUXEMBOURG 19, Route de bastogne, 9638, Pommerloch - Luxembourg IATF USI: GAZS9A Purchasing, Logistics, Supplier Management PolyOne Europe Logistics 7 Rue bleriot, 4460, Grace-Hollogne - Belgium IATF USI: P4WA4Y Warehousing Polyone Poland Ul. wschdnia 6, 99-300, Kutno - Poland IATF USI: C4W5ZL Logistics https://e-cer.bureauveritas.com/68LJQE0ZV0CO6I7YW0YSXOUMV9WWROQPHPI2AOHRRLFFVRAVTFVZGXKWIE3TOWLTTKEWCPQB9UNAPXHH6T0HXOMUEDVYPRPJLEXBBTKQYPBRICYOKY143TECQ5UMHGA3JX 2024-12-13T10:07:11+0100 Authenticity and Integrity

SEMICONDUCTOR PACKAGING OEM S P E C I A L T Y , S T A T I C D I S S I P A T I V E P A C K A G I N G • Provide protection against electrostatic discharge (ESD) and environmental variations • Ensure highly specialized, clean manufacturing conditions • Deliver stringent quality control of ionic and metal contamination • Maintain availability of raw materials across a global supply chain • Ability to translate production globally • Protected critical electronics from ESD while providing an environmental barrier • Adhered to strict quality and cleanliness controls from raw material handling through production to help maintain high-purity standards, such as ultra-clean feeders, deionized water, and specific HVAC systems, supporting quality initiatives, including PCS reviews, eCoA, and HA assessments • Exceeded customer expectations for controlling ionic and metal contamination down to parts per billion (PPB) • Offered global capabilities with local support and material supply to meet growing semiconductor industry needs Stat-Tech Static Dissipative Formulations KEY REQUIREMENTS WHY AVIENT?

+358 (0)29 509 5000 registry@prh.fi Page: 1 (2) Business ID: 2046676-4 Date and time of creating the document: 01.12.2020 08:37:55 TRANSLATION OF THE EXTRACT FROM THE TRADE REGISTER, ELECTRONIC 01.12.2020 08:37:54 the details in the register Identifiers Name Avient Finland Oy Business ID 2046676-4 Entered in the register 31.03.2007 Company type Limited company Contact details: Postal address Äyritie 8 E 01510 Vantaa Street address Äyritie 8 E 01510 Vantaa Email tina.ahlquist@clariant.com Telephone 0106808500 Fax 0106808509 Name details Name Avient Finland Oy Auxiliary company name Drycolor Registered office Vantaa Share capital Share capital 169.000,00 € Number of shares 1 000 pcs Nominal value of a share 169,00 € Financial period Financial period 01.01 - 31.12 Financial statements The last financial statements submitted 01.01.2019 - 31.12.2019 Representation Page: 2 (2) Business ID: 2046676-4 Statutory representation: Under the law, the Board of Directors represents the company.

: 604-588 0590 (CSD) & 603-5101 2882 (Finance) E-mail address* : ar_my@clariant.com;leelee.tang@avient.com; jennifer.tung@avient.com; Contact Person*: CSD - Ms Tang Lee Lee & Ms Jennifer Tung BANK : Bank Name : Citibank Berhad Bank Address : Menara Citibank, 165 Jalan Ampang, 50450 Kuala Lumpur Bank Account Number : MYR - 0114599018 USD - 0114599069 Swift Code : CITIMYKL *Please e-mail us your payment remittance so that we can update our records.

MAJOR TELECOM COMPANY B A S E S T A T I O N P H A S E S H I F T E R • Required customized Dk / Df values tailored to a unique antenna design • Quick qualification of designs and short lead times were critical to support the rapid rollout of new 5G networks • Met required Dk / Df properties using two customized solutions offering Dk 3.6, Df 0.0006 and Dk 3.1, Df 0.0007 • Accelerated speed to market due to thermoplastics’ design flexibility Custom Edgetek™ Formulations KEY REQUIREMENTS WHY AVIENT?

000870.E/24.R Würzburg, 23.05.2024 Benjamin Kirchgeßner Certification Body Certificate The SKZ - Cert GmbH certifies to the company Avient Th. This certificate is valid from: 23.05.2024 bis: 19.05.2027 Certificate No.: 000870.E/24.R Würzburg, 23.05.2024 Benjamin Kirchgeßner Certification Body Appendix to certification number: 000870.E/24.R Avient Th.

VACUUM CLEANER MANUFACTURER G E A R O F V A C U U M C L E A N E R • Excellent wear resistance • Durability • Cost effective • Our product provides excellent wear resistance to improve durability and product life cycle

SCORPYD™ CROSSBOW I N T E G R A T E D R A I L A N D R I S E R • Reduce weight by replacing aluminum • Integrate bolt rail and riser for supporting limbs into unified assembly • Achieved a 40% weight reduction to improve handling and firing ease • Provided structural design services to create industry-first integrated rail and riser assembly • Conducted FEA performance analysis to confirm long carbon fiber reinforced composite met extreme requirements Complēt™ Long Carbon Fiber ETPU Composite KEY REQUIREMENTS WHY AVIENT?

POWER & LIGHTING MANUFACTURER/MOLDER S M A L L C A B L E R E E L • Meet color requirement of medium-tone gray for polypropylene (PP) cable reel application • Low cost color development • Short lead time to fit production schedule • Offered readily available standard color (Mid Grey – OC7UFF) to meet customer request • Provided low usage rate of 1% LDR to keep costs down • Shipped colorant sample within one day of inquiry • Allowed sample parts to be molded within three days to accommodate schedule Omnicolor™ Multipurpose Colorants KEY REQUIREMENTS WHY AVIENT?

Surgical instrument oem SURGICAL INSTRUMENT OEM E N D O S C O P E C O M P O N E N T S • Functional differentiation • ISO 10993 compliance • Excellent resistance to steam sterilization • Excellent chemical resistance • Delivered a variety of bright, distinguishing color choices for functional differentiation • Minimized color deviation • Provided a biocompatible solution • Offered low MOQ with flexible supply Transcend Premier PPSU Healthcare Pre- colored Solutions KEY REQUIREMENTS WHY AVIENT?