Certificate of Authority to use the official API Monogram under License No. 5L-0140, Effective : June 07, 2009 Issued by American Petroleum Institute.

The scope of this License includes:

Manufacturer of Line Pipe Plain End at PSL 1: Type of Pipe: SAWL, SAWH / Delivery Condition: N, Q, M / Highest Grade: X70

Manufacturer of Line Pipe Plain End at PSL 2: Type of Pipe: SAWL, SAWH / Delivery Condition: N, Q, M / Highest Grade: X70