Certificate of RegistrationThis certifies that the Quality Management System of

Plateplus, Inc8807 Liberty Road

Houston, Texas, 77028-5730, 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 of flat hot-rolled plain carbon steel products (service center).

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

Certificate Number: 66064-IS7Certificate Issue Date: 20-AUG-2018Registration Date: 16-AUG-2018Expiration Date *: 15-AUG-2021