7164241149

Mr Kordian Kuc Ul. Mieszka 119 B/3 58-100 Świdnica Poland

January 9^th 2019

LETTER OF REFERENCE FOR MR KORDIAN KUC

JOHN J. GRANVILLE

LEAD & GEOPHYSICAL REPRESENTATIVE RAMFORM SOVEREIGN

ANGOLA-JUNE 2018 TO JANUARY 2019

To Whom It May Concern,

Under the employment of PGS, the above named Mr Kordian Kuc was aboard the Ramform Sovereign offshore Angola during the acquisition of 3 separate seismic projects (2 multi streamer 4D Monitor surveys and a single, multi azimuth 3D) for which the operator had assigned me as their Lead and Geophysical Ouality Control representative.

I am willing to provide this letter of reference for Mr Kuc, that during the periods that I was working with him, as a real time Senior Geophysical QC, he performed his duties in a consistently Professional manner throughout, which was essentiai if the objectives of the projects were to be met.

Taking his performance during the execution of these projects into account, which with respect to the 4D monitor projects in particular were assessed as being significant improvements over those that had been acquired in earlier years, I can thoroughly recommend Mr Kuc to any company who are considering employing him.

I am willing to be contacted at the email address provided should further information and comment be requied.

John J. Granville

Lead & Geophysical QC Representative Ramform Sovereign

iohnigranville(a>hotmail.com