Certificate of RegistrationThis certifies that the Quality Management System of

Durable Industrial Finishing Co, Inc (DIFCO)4925 South Royal Atlanta Drive

Tucker, Georgia, 30084, United States

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

ISO 9001:2015Scope of Registration:

Provision of custom metal finishing, including zinc and tin electroplating, and manganese and zinc phosphating

Tom Chestnut,Sr Vice President - ISR, NSF-ISR, Ltd.

Certificate Number: C0331063-IS8Certificate Issue Date: 06-NOV-2020Registration Date: 27-DEC-2020Expiration Date *: 26-DEC-2023