Media contact Nicole DeChant Avient Corporation nicole.dechant@avient.com Media Relations Contacts Company Officers

The company will conduct a conference call at A simultaneous webcast of the call will be accessible via the company's website at www.polyone.com/investor. Investor Contacts

Investor Relations Contact: Eric R. Media Contact: Kyle G. Media Relations Contacts

CERTIFICATE OF INCORPORATION ON CHANGE OF NAME Company Number 3141094 The Registrar of Companies for England and Wales hereby certifies that under the Companies Act 2006: POLYONE CORPORATION UK LIMITED a company incorporated as private limited by shares, havingits registered office situated in England and Wales, has changed its name to: AVIENT MATERIAL SOLUTIONS UK LIMITED Given at Companies House on9th November 2021. The above information was communicated by electronic meansand authenticated by the Registrar of Companies under section 1115 of the Companies Act 2006

e-Certificate of registration Swedish Companies Registration Office LIMITED COMPANY D1a- 6064988 Registration number Date of registration of the company Document created on Date of registration of current name Page 556393-1020 1990-04-10 2020-11-30 14:53 2020-11-30 1 (2) Registration number: 556393-1020 Business name: Avient Colorants Sweden AB Address: Box 9053 200 39 MALMÖ Registered office: Malmö Note: The company is registered as a private limited company. THE COMPANY WAS FORMED 1990-03-29 SHARE CAPITAL Share capital...: SEK 3,200,000 Min.............: SEK 3,000,000 Max.............: SEK 12,000,000 Number of shares: 32,000 Min.............: 30,000 Max.............: 120,000 BOARD MEMBER, MANAGING DIRECTOR 660613-3954 Nilsson, Bo Patrik Joakim, Hovslagaregatan 13, 271 57 YSTAD BOARD MEMBER, CHAIR OF THE BOARD 640503 Merklein, Norbert, Fichtenstrasse 20, 61476 KRONBERG IM TAUNUS, TYSKLAND BOARD MEMBERS 750618-4089 Norén, Jenny Eva Kristina, Fårabäcksvägen 68, 212 91 MALMÖ 610322 Smeds, Jan-Håkan, Chämiweg 23, NEFTENBACH, TYSKLAND AUDITORS 556029-6740 Öhrlings PricewaterhouseCoopers AB, Box 4009, 203 11 MALMÖ Represented by: 710921-4689 PRINCIPALLY RESPONSIBLE AUDITOR 710921-4689 Olsson, Karin Maria, c/o PwC, 405 32 GÖTEBORG SIGNATORY POWER e-Certificate of registration Swedish Companies Registration Office LIMITED COMPANY D1a- 6064988 Registration number Date of registration of the company Document created on Date of registration of current name Page 556393-1020 1990-04-10 2020-11-30 14:53 2020-11-30 2 (2) The board of directors is entitled to sign. ARTICLES OF ASSOCIATION Date of the latest change: 2020-11-02 FINANCIAL YEAR Registered financial year: 0101 - 1231 Latest annual report submitted covers financial period 20190101-20191231 DATE OF REGISTRATION OF CURRENT AND PREVIOUS BUSINESS NAMES 2020-11-30 Avient Colorants Sweden AB 2016-01-19 Clariant Plastics & Coatings (Nordic) AB 2000-08-23 Clariant Masterbatches Norden Aktiebolag 1990-05-22 Drycolor Aktiebolag 1990-04-10 Nya Drycolor Aktiebolag **** The above information is an extract from the Trade and Industry Register Bolagsverket, the Swedish Companies Registration Office **** Bolagsverket 851 81 Sundsvall 0771-670 670 bolagsverket@bolagsverket.se www.bolagsverket.se 2020-11-30T14:53:51+0100 Sweden Bolagsverket Bolagsverket intygar äktheten och integriteten för detta dokument

As a result, water condenses on a polyolefin film’s surface in discrete droplets with high contact angles. The higher contact angles lead to beading and separation of the water drops from each other. Thirdly, the additive must meet all relevant food contact approvals.

PP OVERMOLDING HARDNESS REGULATORY STERILIZATION CHARACTERISTICS Dynaflex™ G2706 28A USP Class VI, ISO 10993, Food contact EtO Soft translucent grade, grippy feel Dynaflex™ G2711 43A USP Class VI, ISO 10993, Food contact EtO Highly colorable solution, grippy feel, low compression set Versaflex™ CL2242 & CL2250 42A/ 50A USP Class VI, ISO 10993, US Food contact EtO Clear boilable grades; ABS, PC bondable Versaflex™ G2705 N 60A USP Class VI, ISO 10993, Food contact EtO/Steam High resilience, low compression set Versaflex™ HC3810 20A-90A USP Class VI, ISO 10993 EtO General purpose, unfilled ABS, PC OVERMOLDING HARDNESS REGULATORY STERILIZATION CHARACTERISTICS Versaflex™ OM1040 40A USP Class VI, ISO 10993 EtO Translucent Versaflex™ OM3060 60A USP Class VI, ISO 10993 EtO Clear VERSAFLEX™ CL AND DYNAFLEX™ TPEs OVERMOLDING FOR ERGONOMICS • Adds good tactile surface with soft-touch feel • Available in a variety of color effects and textures • Improves grip, cushion, and comfort • Enhances functional performance like sealing properties, vibration damping, oxygen barrier, and scratch and abrasion resistance • Reduces assembly costs, good processability • Offers excellent adhesion to a wide range of substrates Applications: • Glucometers • Medical tools overmolds • Injector pens • Analysis devices VERSALLOY™ HC & VERSAFLEX™ HC TPEs SEALING & RESEALING • Rubbery feel and soft touch • No coring, good puncture, and resealability in static stoppers • Meets low coefficient of friction requirements in dynamic seals • Low extractables • Suitable to overmold onto polyolefins Applications: • Sealing and resealing septum • Seals and sanitary gaskets • Syringe plungers and tips MATERIAL DESCRIPTION HARDNESS REGULATORY STERILIZATION CHARACTERISTICS Versalloy™ HC 9210-45N 45A USP Class VI EtO Good processability, smooth surface aesthetics Versalloy™ HC 9210-55N 55A USP Class VI EtO Good processability, smooth surface aesthetics Versalloy™ HC 9210-70N 70A USP Class VI EtO Good processability, smooth surface aesthetics Versalloy™ HC 9220-43N 43A USP Class VI, ISO 10993-4/5 EtO Extrusion grade, high temperature resistance Versaflex™ HC 2110-35N 34A FDA, USP Class VI, ISO 10993 Autoclave EtO radiation Resealing, elevated comp set Versaflex™ HC 2110-57B 57A FDA, USP Class VI, ISO 10993 Autoclave EtO radiation Low stiction VERSAFLEX™ CL AND DYNAFLEX™ TPEs HIGH CLARITY GRADES WITHOUT PLASTICIZERS • Water clear grades formulated without phthalate plasticizers • Meets medical regulatory USP Class VI and ISO 10993-4,5 • Food contact and FDA compliant • Autoclave and radiation stable • Low extractable • High clarity (Haze 50 4.1, 100 4.5, 100 4, 70 6, 70 Tensile Modulus (MPa) 2200 2700 2600 2350 1820 1820 Flexural Strength (MPa) 80 90 104 86 68 68 Flexural Modulus (MPa) 2500 2700 2500 2300 1980 1590 HDT: 0.45, 1.8 (MPa) 110, 80 90, 80 100, 89 123, 100 123, 64 100, 70 UL-94 Rating @ 3.0 mm 5VA V-0 5VA V-0 HB V-0 UL-94 Rating @ 1.5 mm V-0 V-0 5VB V-0 HB V-0 UL-94 Rating @ 0.75 mm V-1 V-2 V-0 None None V-2 COMPETITIVE MATERIAL COMPARISON ENGINEERED POLYMER FORMULATIONS FOR HEALTHCARE TRILLIANT™ HC THERMOPLASTICS The family of Trilliant™ HC high-performance thermoplastics is formulated to meet the growing challenges of medical devices and equipment. Contact Avient to tap into our material science expertise and comprehensive product development support services to help you bring your ideas to market faster.

So we’ve developed the ideal TPEs for your infant care application, from materials that are durable and safe for baby contact to regulatory compliant grades and soft-touch solutions. * Regulatory compliance is offered for consideration only. The food contact compliance statements are based on the composition of the TPE and cite any restrictions, limitations, food types, and/or specific migration limitations (depending on the regulation). HOW GLS TPES MAKE THE DIFFERENCE IN INFANT CARE APPLICATIONS • Safe to Use – Made without bisphenol A (BPA), phthalates, or heavy metals; select grades compliant with FDA, REACH and China GB4806 • Durable – Resists bites and tears; many are tested and safe to use in microwaves and dishwashers • Comfortable – Can be overmolded to provide a soft touch grip and customized to specific comfort requirements including vibration and noise reduction • Easy to Process – Can be injection molded and overmolded right onto a substrate including PP, ABS, etc. • Better Quality Control – Eliminate the need for many secondary operations required for other materials so that results are controlled and consistent To learn more about GLS TPEs for infant care, contact Avient at +1.844.4AVIENT.

KEY CHARACTERISTICS • Formulated without intentionally added fluorinated substances • Free of slip agents, plasticizers, and biocides, avoiding those types of ingredients that may cause interference with protein or DNA assays • Based on high-quality virgin PP resin suitable for labware applications • Achieves high water contact angles1 contributing to durable hydrophobicity • Delivers hydrophobic performance after long- term storage or heat aging2 • Eliminates the need for a secondary low- retention coating • Demonstrates low leachability, critical for pipette tips and diagnostic devices • Compatible with standard PP injection molding temperatures (210°C–250°C) with a wide range of injection fill speeds • Withstands typical electron-beam and Gamma radiation sterilization doses with minimal yellowing and fast recovery of hydrophobicity post-radiation • Achieves low optical haze and good clarity in molded parts • Non-animal derived versions available REFERENCES 1 https://www.nanoscience.com/techniques/tensiometry/contact-angle-measurements-and-wettability/ 2 https://westpak.com/industry-solutions/medical-device/accelerated-aging/ LOW RETENTION PERFORMANCE FOR PIPETTE TIPS (Green/Blue Dye Water Test) PROPERTY RESULT Water Contact Angle (ASTM D5946) ~ 108° Residual liquid in a low-retention test (green or blue dyed water is used as test fluid) ~ 20% (in weight) vs. that of an unmodified PP control Transmittance (ASTM D1003*) ≥ 85% Optical Haze (ASTM D1003*) ≤ 60% Processing Temperature Range 210°C–250 °C PERFORMANCE PROPERTIES * Measurements based on 0.8 mm thick flat chips molded of Cesa Non-PFAS Low Retention G1-BP compounds Copyright © 2025, Avient Corporation.

After taking part in a customer-day event at the Avient ColorWorks design and technology center in Milan, company founder Francesco Franceschetti was inspired and suggested a collaboration to conduct an exhaustive study of the Italian ski boot marketplace and the colors boot makers use in their products.