The webcast can be viewed live at avient.com/investors, or by clicking here: https://edge.media-server.com/mmc/p/yrq7mgm9.  

Visit the new SurfaceChoice Films Design Center at:  http://www.polyone.com/films-design-center

Normative base EN ISO 13485:2016 Medical devices – Quality Management System Reg. no. 45484 Validity 01.03.2022 – 28.02.2025 Issue 01.03.2022 Swiss Made Swiss Association for Quality and Management Systems (SQS) Bernstrasse 103, 3052 Zollikofen, Switzerland sqs.ch F.

Coffee Capsules case study DESIGN FOR COMPOSTING C O F F E E C A P S U L E S • Compliance with European Standard EN 13432 • Biodegradable and compostable solutions approved by certified body (TÜV Austria) • Color customization for various kind of biopolymers • Formulation expertise and regulatory assistance OnColor™ Bio-Colorants KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/polymer-colorants/solid-color-masterbatches/oncolor-bio-colorants

PHONE CASE BRAND P H O N E C A S E S • Compatible with antimicrobial additives • Good stain resistance • Non-yellowing • Delivered enhanced solution that included antimicrobial properties and stain resistance • Collaborated with OEM and the foremost supplier of antimicrobials to comply with key bacterial growth requirements Versaflex™ CE 3320-80 TPE KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/thermoplastic-elastomers/versaflex-thermoplastic-elastomers

Lo ss ta ng en t NEW TECHNOLOGIES REQUIRE NEW MATERIALS The rapid technology development requires new frequency ranges and bandwidths. The advantages of PREPERM materials relate to more efficient data transfer (antennas, mobile base stations, satellite communication), better sensitivity (GPS, radars, radomes) and longer battery life (mobile and IoT devices).

KEY CHARACTERISTICS • Faster processing speeds (up to 1,000 m/min) at low wall thickness (100 µm) • Increased chemical resistance • Lower gel migration • ECCOH 6153 UV - optimized for Teroson • ECCOH 6154 UV - optimized for Unigel • High color rendition and compatibility with Avient masterbatch • High UV resistance • Very low shrinkage MARKET & APPLICATIONS Optical Fiber Cables including: • Stranded loose tubes – gel-filled/dry • Micro-modules • Tight buffer applications – gel-filled/dry STANDARD COMPLIANCE • IEC 60794 • NF XP C93-850-1-1:2020 • EN 50289-4-17:2016 • ISO 4892:2016 • ST/CNET/5843 (1998) PRODUCT BULLETIN GEL MIGRATION PERFORMANCE ECCOH LSFOH 6153/6154 UV grades offer greater gel migration performance compared to alternative ECCOH grades. Gel migration is measured using a quantitative internal method * 6151 can be supplied with UV protection * Values concluded from the simulation of materials rheological data and modelling standard extrusion tooling Pressure: can affect extruder performance, higher pressure gives a lower output at the same rpm Shear rate: has a relation with self-cleaning of the walls and mixing conditions Stress: can affect the surface of the product, less stress gives a better surface aspect MIGRATION OF GEL COMPOUND Gel Compound ECCOH™ 6151* ECCOH™ 6153 UV ECCOH™ 6154 UV Unigel Average Good Excellent Teroson Average Excellent Good Itcogel Average Good Excellent ECCOH™ 6151 ECCOH™ 6153 UV ECCOH™ 6154 UV ∆P (bars) 101 63 60 Shear Rate (1/s) 9 9 9 Stress (kPa) 127 79 75 Application example: Gel-filled stranded loose tube optical fiber cable www.avient.com Copyright © 2020, Avient Corporation.

https://www.idtechex.com/en/research-report/low-loss-materials-for-5g-2021-2031/778 5G 应用材料 材料要求 — — — — — — — — — 下一步

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

PP NONWOVEN MANUFACTURER G E O T E X T I L E S • High concentrate UV solution (up to 50% light protection) in PP nonwoven textiles • Shorter lead time from existing supplier • Local technical support • Long-lasting UV stability • Provided high concentrate UV protection in nonwoven textiles with dosage @ 50% • Shortened the lead time with global supply and technical service • Offered excellent UV stability CesaTM Light Additives KEY REQUIREMENTS WHY AVIENT? All Rights Reserved. https://www.avient.com/products/polymer-additives/uv-and-light-blocking-additives/cesa-light-additives Slide 1: PP NONWOVEN MANUFACTURER