Certificate of RegistrationThis certifies that the Quality Management System of

NKS - National Kwikmetal Service HQ and Plant560 Santa Rosa Drive

Des Plaines, Illinois, 60018, United States

has been assessed by NSF-ISR and found to be in conformance to the following standard(s):

ISO 9001:2015Scope of Registration:

Processor and Distributor/Service Center of Flat-Rolled Stainless Steel, Copper, Brass, Aluminum, and Carbon Steel

Carl Blazik,Director, Technical Operations & Business Units,NSF-ISR, Ltd.

Page 1 of 2

Certificate Number: 6V261-IS7Certificate Issue Date: 06-SEP-2018Registration Date: 31-AUG-2018Expiration Date *: 30-AUG-2021

This Annex is only Valid in connection with the above-mentioned certificate issued by NSF-ISR

Page 2 of 2

ANNEX PAGE FOR CERTIFICATE REGISTRATION NUMBER 6V261-IS7

CERTIFICATE ISSUE DATE: 06-SEP-2018CERTIFICATE EXPIRATION DATE: 30-AUG-2021

NKS - National Kwikmetal Service HQ and Plant560 Santa Rosa Drive

Des Plaines, Illinois, 60018, United States

Remote Location: NKS of TN- C0075995

174 Jefferson PikeLa Vergne, Tennessee, 37086, United States

Scope:Processor and Distributor/Service Center of Flat-Rolled Stainless Steel, Copper, Brass, Aluminum, and Carbon Steel

Remote Location: NKS Alloys- C0267024

900 Hollywood Ave. Itasca, Illinois, 60143, United States

Scope:Processor and Distributor/Service Center of Flat-Rolled Stainless Steel, Copper, Brass, Aluminum Sheet Metal, and Carbon Steel