Certificate of RegistrationThis certifies that the Quality Management System of

Tuboscope, A National Oilwell Varco Company1844 Highway 662 Amelia North Coating Plant

Amelia, Louisiana, 70340, United States

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

ISO 9001:2015Scope of Registration:

The application of internal plastic coating coatings to oil country tubular goods (OCTG), line pipe, couplings and associated equipment.

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

Certificate Number: C0351210-IS1Certificate Issue Date: 23-MAY-2018Registration Date: 22-MAY-2018Expiration Date *: 21-MAY-2021