Certificate Avient Corporation A B S Q u al ity E va lu at io n s C er tif ic at io n E Certificate Of Conformance This is to certify that the Quality Management System of: Avient Corporation 33587 Walker Road, Building 428 Avon Lake OH 44012 United States has been assessed by ABS Quality Evaluations, Inc. and found to be in conformance with the requirements set forth by: ISO 9001:2015 The Quality Management System is applicable to: Manufacture of plastic compounds, color and performance additives, engineered thermoplastics, vinyl resins, custom mixed plastic materials, custom and commodity colorants for plastics, polyurethane systems, and plasticizers with design and sampling support at Suwanee, GA, and purchasing, customer service, logistics, quality, design and sampling support at PolyOne Corporate Headquarters at Avon Lake, OH, and distribution of resins Certificate No: 31307 Certification Date: 12 OCT 1995 Effective Date: 11 JUL 2024 Expiration Date 07 OCT 2025 Revision Date: 17 JUL 2024 Dominic Townsend, President Copyright as of the Effective Date, ABS Quality Evaluations, Inc.

Tax identification number: 8368502888 Manner of representation: independent Certified signature statement or specimen signature countersigned by lawyer has been filed.

Also, has a very low coefficient of friction for easy installation, excellent flame retardancy and char formation.

Verify material has been dried at proper conditions Incorrect nozzle 1.

They not only help to validate the form and usability of the proposed design, but also help designers catch small oversights or usability issues that may not have been apparent with existing products. HAMMER HANDLE CASE STUDY CASE STUDY OBJECTIVE Computationally evaluate whether the new polymer design has comparable or improved performance in: • The impact or reaction force felt by the hand (comfort) • The vibration frequency transmitted to the hand (safety*) *Repetitive vibration frequencies in a handheld product have been known to lead to neuromuscular issues including dexterity loss and nerve deadening.

Each of such adjustments has not yet occurred, are out of the Company's control and/or cannot be reasonably predicted. Whether an additional line at an existing manufacturing plant, or a new facility in a growing region, we ramp-up quickly and cost-efficiently. 26 Capex / Revenue 2021E (%) AVIENT IS ASSET LIGHT Avient Specialty Formulators Other Chemical/Specialty Companies 2 3 2 2 2 3 3 4 3 3 3 4 4 5 5 5 6 7 7 8 24 A vi en t A vi en t (E xc l.

Sink Marks Melt too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Insufficient material volume • Adjust transfer position • Increase shot size • Increase injection rate • Increase packing pressure Part geometry too thick • Reduce wall thickness • Reduce rib thickness TROUBLESHOOTING RECOMMENDATIONS PROBLEM CAUSE SOLUTION Flash Injection pressure too high • Decrease injection pressure • Increase clamp pressure • Decrease injection rate • Increase transfer position Excess material volume • Adjust transfer position • Decrease pack pressure • Decrease shot size • Decrease injection rate Melt and/or mold temperature too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Loose clamp • Reset mold height • Increase clamp tonnage Shrink Too much shrink • Increase cooling time • Decrease mold temperature Too little shrink • Decrease cooling time • Increase mold temperature Burning Process related • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease injection rate • Reduce decompression Mold design • Clean, widen and increase number of vents • Increase gate size to reduce shear Wet material • Verify material is dried at proper condition Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Incorrect nozzle • Use reverse taper tip Weld Lines Melt front temperatures are too low • Increase injection rate • Increase pack and hold pressure • Increase melt temperature • Increase mold temperature Mold design • Increase gate size • Identify end of fill pattern and verify proper vent location • Add vents or increase vent width • Move gate location TROUBLESHOOTING RECOMMENDATIONS PROBLEM CAUSE SOLUTION Warp Process related • Increase melt temperature • Reduce injection speed • Increase pack pressure • Increase pack time • Decrease mold temperature • Increase cool time Mold design • Non-uniform mold cooling Part design • Non-uniform wall thickness Thermolator incorrect temperature • Check settings • Inspect thermocouple Sticking in Mold Overfilled cavity • Decrease injection rate and pressure • Decrease hold pressure • Adjust transfer position • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease cooling time Part too hot • Decrease barrel temperature • Decrease mold temperature • Increase cooling time Mold design • Increase draft angle • Polish cores in direction of ejection Black Specks Contamination • Purge machine Degradation • Reduce melt temperature • Reduce screw speed • Reduce back pressure Machine related • Check for wear on screw, barrel or check ring Delamination Process related • Increase melt temperature • Decrease injection speed • Purge barrel to eliminate material contamination Mold design • Reduce sharp corners in material flow path • Increase venting TROUBLESHOOTING RECOMMENDATIONS PROBLEM CAUSE SOLUTION Discoloration Oversheared material • Decrease melt temperature • Decrease injection speed • Reduce residence time Mold design • Increase gate sizing Dry material • Check moisture of material to ensure it is within the recommended moisture percentage for molding TROUBLESHOOTING RECOMMENDATIONS 1.844.4AVIENT www.avient.com Copyright © 2021, Avient Corporation.

Sink Marks Melt too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Insufficient material volume • Adjust transfer position • Increase shot size • Increase injection rate • Increase packing pressure Part geometry too thick • Reduce wall thickness • Reduce rib thickness Processing Guide 5 Troubleshooting Recommendations Problem Cause Solution Flash Injection pressure too high • Decrease injection pressure • Increase clamp pressure • Decrease injection rate • Increase transfer position Excess material volume • Adjust transfer position • Decrease pack pressure • Decrease shot size • Decrease injection rate Melt or mold too hot • Decrease nozzle and barrel temperatures • Decrease mold temperature Loose clamp • Reset mold height • Increase clamp tonnage Shrink Too much shrink • Increase cooling time • Decrease mold temperature Too little shrink • Decrease cooling time • Increase mold temperature Burning Process related • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease injection rate • Reduce decompression Mold design • Clean, widen and increase number of vents • Increase gate size to reduce shear Wet material • Verify material is dried at proper condition Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Incorrect nozzle • Use reverse taper tip Weld Lines Melt front temperatures are too low • Increase injection rate • Increase pack and hold pressure • Increase melt temperature • Increase mold temperature Mold design • Increase gate size • Identify end of fill pattern and verify proper vent location • Add vents or increase vent width • Move gate location 6 Artisan Pre-Colored Thermoplastics Problem Cause Solution Warp Process related • Increase melt temp • Reduce injection speed • Increase pack pressure • Increase pack time • Decrease mold temperature • Increase cool time Mold design • Non-uniform mold cooling Part design • Non-uniform wall thickness Thermolator incorrect temperature • Check settings • Inspect thermocouple Sticking in Mold Overfilled cavity • Decrease injection rate and pressure • Decrease hold pressure • Adjust transfer position • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease cooling time Part too hot • Decrease barrel temperature • Decrease mold temperature • Increase cooling time Mold design • Increase draft angle • Polish cores in direction of ejection Black Specks Contamination • Purge machine Degradation • Reduce melt temperature • Reduce screw speed • Reduce back pressure Machine related • Check for wear on screw, barrel or check ring Delamination Process related • Increase melt temperature • Decrease injection speed • Purge barrel to eliminate material contamination Mold design • Reduce sharp corners in material flow path • Increase venting Troubleshooting Recommendations Processing Guide 7 Troubleshooting Recommendations Problem Cause Solution Discoloration Oversheared material • Decrease melt temperature • Decrease injection speed • Reduce residence time Mold design • Increase gate sizing Dry material • Check moisture of material to ensure it is within the recommended moisture percentage for molding 1.844.4AVIENT www.avient.com Copyright © 2020, Avient Corporation.

Versaflex™ & Versalloy™ Specialty Engineered Materials Thermoplastic Elastomers for Healthcare Applications Delivering specialized thermoplastic elastomer (TPE) solutions for demanding healthcare applications, Avient has performance-grade materials that are approved for USP VI, ISO 10993-4 and 10993-5.

In the event of a conflict between this Quality Commitment and any mutually agreed specifications or quality agreement that is executed by NEU, the mutually agreed specifications or signed quality document shall control. 1.0 PRODUCT DESCRIPTION Thermoplastic material in pellet form. 2.0 TEST METHODS NEU test methods are modeled after ASTM testing standards, where applicable. 3.0 OPERATIONAL DEFINTIONS 3.1 Lot (Batch): Material manufactured at one time. 3.1.1 Full Raw Material tractability of non-proprietary formulations will be reflected on the COC 3.2 Certification: “Certificate of Conformance” or “Certificate of Analysis” based material requirements 3.3 Certificate of Analysis: Document containing information that the product conforms to the established Product Specifications. 3.4 Certificate of Conformance: Document containing confirmation that the product conforms to the defined formulation. 3.5 Finished Product Form: Finished product shape (Cylindrical, Spherical) 3.6 Product Specification: the product specifications that are contained in a written document signed by NEU, or if such document does not exist, the Certificate of Analysis or Certificate of Conformance issued by NEU. 4.0 PACKAGING 4.1 Standard product packaging options include: 4.1.1 Drum 4.1.2 Gaylord 4.1.3 Pail 4.1.4 Individual bag in box 4.1.5 Packaging may include a liner or pallet based on the configuration.