Zwolseweg 1, 2994 LB, Barendrecht, Netherlands - TEL: +31(0)102922689. www.dnv.com/assurance Certificate No: 2997-2006-AQ-RGC-RvA Initial certification date: 08 June, 2006 Valid: 11 April, 2022 – 11 April, 2025 This is to certify that the management system of Polyone - Suzhou, China EM Sector, 77 Shenggang Street, Suzhou Industrial Park, Suzhou, Jiangsu, China, 215024 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 Plastic Compounding Material Certificate No: 2997-2006-AQ-RGC-RvA Place and date: Shanghai, 27 April, 2022 Lack of fulfilment of conditions as set out in the Certification Agreement may render this Certificate invalid. Room 201, Building 20, No. 200 JinSu Road, Shanghai Free Trade Zone, China, 200131 Design of Plastic Compounding Material Polyone - Suzhou, China EM Sector, 77 Shenggang Street, Suzhou Industrial Park, Suzhou, Jiangsu, China, 215024 Manufacture of Plastic Compounding Material

No. 0562.01) 11/30/2023 Page 1 of 1 SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 AVIENT CORPORATION 733 East Water Street North Baltimore, OH 45872 Claire Holman Phone: (419) 257-1327 MECHANICAL Valid To: October 31, 2025 Certificate Number: 0562.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following automotive plastics tests: Test Method: Test Name: ASTM D412 Tensile ASTM D523 Specular Gloss ASTM D618 (A) Conditioning of Plastics ASTM D624 (Die C) Tear Strength ASTM D638 Tensile Properties ASTM D792 (A) Density and Specific Gravity by Displacement ASTM D1004 Initial Tear Resistance ASTM D1203 (A) Volatile Loss ASTM D1895 (A) Apparent Density, Bulk Factor, Pourability ASTM D1921 Particle Size (Sieve Analysis) ASTM D2240 Durometer Hardness (Shore A and D) ASTM E1331 Color by Spectrophotometry Using Hemispherical Geometry FMVSS 571.302 Flammability FORD BN-102-01 (A) Low Temperature Flexibility FORD BO-131-03 Interior Odor ISO 3795 Determination of Burning Behavior of Interior Materials SAE J323 (A) Cold Cracking (Mandrel Bend) SAE J1351 Hot Odor for Insulation Materials SAE J1545 Instrumental Color Difference Measurement DOC-058151 Angle of Repose 1 Laboratory Developed Method For the tests to which this accreditation applies, please refer to the laboratory’s Mechanical Scope of Accreditation.

Mevopur™ Healthcare Functional Additives Laser Welding Additives for Medical Devices Laser welding has become a technology of choice to join plastic parts of complex medical devices. Also known as transmission welding, laser welding is the process of using focused laser radiation to bond two plastic parts, one that is transparent to the laser energy and one that absorbs the energy. Please be aware that there are certain applications Avient’s Mevopur products have not been designed for, nor are they promoted or intended for use in: including, but not limited to long-term or permanent implants, birth control devices, or plastic surgery.

Available in a wide range of customizable colors, these impact-modified nylon formulations eliminate secondary painting processes—unlike traditional materials such as painted plastics or metals—providing the added manufacturing and sustainability benefits of reducing energy use and removing VOC emissions. TECHNICAL BULLETIN Characteristics Artisan™ Nylon Solution Painted Metal Painted Plastic Traditional Molded-in Color Impact Modified Nylon PA Ionomer Alloy Aesthetic Very Good Excellent Excellent Good Very Good Very Good Scratch Appearance Excellent Poor Poor Good Excellent Excellent Scratch & Mar Resistance Very Good Excellent Excellent Poor Very Good Excellent Color Customization Good Excellent Excellent Very Good Good Good Stress Whitening Excellent Fair Fair Poor Excellent Excellent Weatherability Good Excellent Excellent Very Good Good Very Good Temperature Performance Good Excellent Fair Fair Fair Good Corrosion Resistance Excellent Fair Excellent Excellent Excellent Excellent Processability One Step Multi Step Multi Step One Step One Step Complex One Step Total Production Cost $$$ $$$$$ $$$$ $$ $$$ $$$$ Order Quantity Restrictions Some Some Some None More More COMPARISON OF NYLON, METAL, AND PLASTIC Properties Test Method Artisan™ AR6000-0007 HI UV* Gloss Level** Gloss reading at 60 degrees 80-93 Molding Shrinkage – Across Flow ASTM D955 0.009 to 0.013 in/in Tensile Strength (Yield) ASTM D638 7300 psi Tensile Strength (Break) ASTM D638 5300 psi Tensile Elongation (Yield) ASTM D638 6.0% Flexural Modulus ASTM D790 270500 psi Flexural Strength (Yield) ASTM D790 9950 psi Notched Izod Impact ASTM D256 -4°F (-20°C) 5 ft-lb/in 73°F (23°C) 11 ft-lb/in Unnotched Izod Impact ASTM D256 -4°F (-20°C) 29 ft-lb/in 73°F (23°C) 30 ft-lb/in Color & Aesthetics*** Green, medium blue, dark blue, red, orange, white, gray, black Color customization available based on specific needs KEY PROPERTIES Features: high-gloss finish, UV stability, scratch resistance, chemical/corrosion resistance, cold temperature impact resistance, heat resistance * Reflects average of several colors, properties shift slightly depending on color ** Gloss level varies based on tooling temperature *** UV data available upon request Copyright © 2023, Avient Corporation.

We have come to rely on this common plastic because it is convenient, lightweight, safe, cost effective and highly recyclable. THE CHALLENGES Improving rPET Quality • Reduce yellowing, improve color and assure IV uniformity Enhancing Bottle Performance • Improve bottle strength, reduce acetaldehyde and minimize thread pulls & blowouts that cause high scrap rates Reducing Carbon Footprint • Reduce energy consumption and raw material usage while driving product efficiencies OUR SOLUTIONS Aligning our work with sustainability demands, we address those challenges for rPET producers, convertors and brand owners alike with technologies to improve both quality and performance, ensuring the recyclability of plastic packaging. ISSUE AVIENT SOLUTION WHAT IT IS WHAT IT DOES Bottle quality and strength; energy usage ColorMatrix™ SmartHeat RHC Process aid, approved by Association of Plastics Recyclers (APR), which helps to reduce carbon emissions and improve the quality and performance of rPET, allowing for higher levels of rPET to be used.

ENHANCE PROTECTION & INHIBIT BACTERIAL GROWTH WITHSTAND™ ANTIMICROBIAL SOLUTIONS FOR ELECTRONIC ACCESSORIES WithStand™ antimicrobial additives are designed to be molded into plastic components to enhance product performance. These antibacterial and antifungal additives reduce growth of bacteria, mold and fungus on the surface and through the thickness of the plastic part. ANTIMICROBIALS FOR PLASTICS Effective in reducing bacterial growth across a range of polymer resins Bacteria does not attach to surface of part molded with WithStand Bacteria attaches to surface of part molded without WithStand Side View Molded with antimicrobial additives Molded without antimicrobial additives

THERMOPLASTIC ELASTOMER FOR OVERMOLDING ATTRACTIVE, PRACTICAL HANDGRIPS ONTO ABS RESIN © 2021, All Rights Reserved Avient Corporation, 33587 Walker Road, Avon Lake, Ohio USA 44012 To learn more about OnFlex-S™ TPEs, contact Avient at +1.844.4AVIENT (1.844.428.4368) or visit avient.com THE CHALLENGE Facing strong competition from all-plastic garden sprayers, a leading garden equipment manufacturer decided to create a new, high-end line of sprayers featuring enhanced quality, durability and aesthetics. The new products have been very well received by consumers, and have allowed the company to address the competitive threat from all-plastic sprayers High-end product line = competitive advantage: With Avient’s OnFlex-S TPE, developers successfully designed and produced a new, high-end product line that compares favorably with all-plastic sprayers in terms of appearance, performance and durability

This is achieved by molding a soft skin of thermoplastic elastomer over a hard engineering plastic. The TPE chemistry and the type of engineering plastic play a critical role in influencing wettability. The bond strength between the TPE and the engineering plastic was measured by performing a “90o Peel Test”.

While commodity plastics can typically maintain performance only up to 100°C, and engineering plastics do the same up to 120°C, a high-performance thermoplastic can withstand continuous use temperatures of 230°C while also maintaining low temperature impact. Automotive: Demand for plastics to handle increasing temperatures due to the proliferation of electronics in engine compartments and tighter spaces. Most high-heat plastics are hygroscopic, so careful drying is needed to avoid potential processing issues.

Bio-polymers are already used with success in different plastic products, notably in packaging, but to be used in healthcare applications, they need to be evaluated to the relevant protocols to support regulatory compliance of the end article. Avient provides pre-tested color and additive concentrates based on bio-polymers to minimize the risk of non-compliance and support a more sustainable profile for plastic products used in the healthcare industry. Please be aware that there are certain applications Avient’s Mevopur products have not been designed for, nor are they promoted or intended for use in: including, but not limited to long-term or permanent implants, birth control devices, or plastic surgery.