Reference Letter

Scientific Production Center GEOKEN LLP carried out complex geophysical works at in Karagandy and East Kazakhstan oblasts of the Republic of Kazakhstan under the Contract No. JM/7 dated May 13, 2022 by the request of Zhana Mys LLP. The survey were carried out to establish and trace the fault tectonics, separate sedimentary and magmatic rocks, isolate mineralized quartz-sulfide zones, promising for mineralization.
According to Scope of Work in 2022 more than 1,400 linear kilometers have been studied by aeromagnetic and electrical survey methods.
Works on the project were carried out by using modern, most advanced specialized technologies and software products such as: GDD Instrumentation GRx8-32, Txll-5, DJI Matrice 300 RTK quadcopter, GEOSHARK MG30GM magnetometer, Pico PBM/PMAG, GER-5M, VPF-8K, VPF-210M were used for data recording. Topographic survey was performed by a Trimble system.
The acquired and summarized geological and geophysical materials are taken as a basis for planning of further exploration works, allocation of promising areas, justification of the scope and methods of prospecting and exploration works.
SPC GEOKEN LLP has established itselkas a responsible and highly competent contractor providing services at a high professional level.

Director «Zana Mys» LLP Kulbayev K.A.

REFERENCE LETTER

Scientific Production Centre GEOKEN LLP carried out a ground electrical survey in Aktobe and Kostanay regions of the Republic of Kazakhstan under the request of ERG Exploration LLP. The surveys were conducted in order to identify potentially promising areas for identification of polymetallic ores.

According to the Scope of Works, the electrical survey was conducted at 8 areas. The survey was conducted in the period from June 2022 to September 2022. The scope of electrical survey work was 119.7 line km.

The works on the project were carried out by using modern, most advanced specialized technologies and software products. GDD Instrumentation GRx8-32, Txll-5 electrical survey complex was used for data recording. Topographic support was performed with Trimble R12 system.

As a result of the work, 3D models of electrical properties were obtained, potentially promising areas for the identification of polymetallic ores were identified, and recommendations were formulated for the location of exploration wells. The obtained materials, in combination with other geological and geophysical data, were used for geological mapping and allowed a more reasonable approach to solving the problems of the geological structure of the work area and identifying promising objects.

During its operation, GEOKEN SPC LLP has established itself as a reliable partner that has the necessary human resources, modern equipment and software for high-quality and timely performance of electrical exploration work.

Sincerely, General Director A.Z. Shalabaev

Reference Letter

By this letter, our company “Akpan” LLP expresses gratitude to SPC Geoken LLP for qualitative execution in 2015 in surface geophysical research, such as electro research and magnetic research on Becksais field, located in Aktobe, Chromtau and Aitekebi regions.
With full responsibility we can recommend SPC Geoken as a reliable and long-term partner. Working with SPC Geoken quite a long period we would like to underline high level of professionalism of the team, compliance with all obligations and culture of daily business communication.

«Akpan» LLP CEO                        A. Dushekenov                     21.12.15

Reference Letter

By this letter, our company expresses gratitude to SPC Geoken LLP for qualitative execution in 2014 of bathymetry and magnetometric surveys along projected cargo & transport channel to Prorva in Northern Part of the Caspian Sea, including surveying with Multi Beam and Single Beam Echo Sounders, Marine Magnetometer, processing and interpretation of acquired data (General Client ГСО company, FGP project).
With full responsibility we can recommend SPC Geoken as a reliable and long-term partner. Working with SPC Geoken quite a long period we would like to underline high level of professionalism of the team, compliance with all obligations and culture of daily business communication.
Considering our long-term collaboration experience, we recommend SPC Geoken Company as highly professional and reliable partner in rendering bathymetric, magnetometric and tiydrographic survey services.

Executive Director “КАРЕ” LLP                          A.M. Autoreiv                 Feb 25. 2015

Reference Letter

By this letter N Operating Company LLP advises that SPC Geoken LLP had rendered navigational service during rig move on the route Russian sector of the Caspian Sea -N Block, Kazakhstan sector of the Caspian Sea and Astra rig positioning at planned AR-1 well location with the use of navigation and positioning systems.
SPC Geoken LLP had proved itself to be a reliable contractor. Working with SPC Geoken for a quite long period we would like to mention high level of professionalism of the team, compliance with all obligations and daily business communication culture.

General Director B.Amakulov Mar 11. 2015

Reference Letter

Hereby, our company expresses gratitude to SPC Geoken LLP for rendered supervisor services during execution of engineering-geological investigations before construction of Zhambyl #1 (ZB-1) and Zhetysu #1 (ZT-1) exploration wells.
We would like to note the high professional level of supervisors in work coordination of all agencies and service companies involved into execution of engineering-geological investigations.
Offshore production-methodological supervision of engineering-geological investigations was carried out with the usage of up-to-date methods and technologies.
Making suggestions to the Client as per changes in technical specification promoted speeding-up and economy of the operation process complying with production safety and HSE rules.
Considering our collaboration experience, we recommend SPC Geoken LLP as high professional partner in rendering services on engineering-geological investigations and control for their execution.

Reference Letter

SPC Geoken LLP as per order of CMOC B.V. in 2010 – 2011 executed offshore geophysical pipeline and well sites surveys, including analogue and digital surveys and Unexploded Ordinances (UXO) detection survey along the route of the proposed pipeline in the Kazakhstan sector of the Caspian Sea.
In 2010 SPC Geoken LLP as per order of CMOC B.V. successfully performed operations on navigational support and positioning of MODUs and associated surveys ensuring safe movement of the MODU within Kazakhstan sector of the Caspian Sea.
In 2011 the services on positioning of the Environmental vessel and magnetic survey along the route of the proposed pipeline were performed.
From our collaboration we can note that the key priorities in SPC Geoken’s operations are the obligatoriness, punctuality and high quality.
Using this opportunity, we would like to thank the managers and executors of SPC Geoken for high-quality of work execution, competent use of up-to-date technology and efficient elimination of all problems during the fulfillment of geophysical surveys, as well as for prompt fulfillment of all obligations.

LETTER OF RECOMMENDATION

Subject: Airborne magnetic and radiometric survey on Tortkuduk and Muyunkum ore deposits (Republic of Kazakhstan) for Katco JV LLP mining company in 2014.

I undersign, Anne-Laure TENSI, Geophysicist, certify that GEOKEN conducted on behalf of KATCO JV LLP an airborne magnetic and radiometric survey over a large block on KATCO JV LLP licenses.
The campaign consisted of a survey on one large block covering a total surface of 1184 km² at a line spacing of 500 m and two smaller blocks covering a surface of 45 km² each over Muyunkum and Tortkuduk ore deposit areas at a line spacing of 250 m (Southern Kazakhstan Province – Republic of Kazakhstan). The campaign was conducted between October and November 2014.

GEOKEN prepared the preliminary data for the survey, the airborne survey (including all permission and dispensations requests from local authorities), the mobilization of the staff and of the equipment, the calibrations and airborne data acquisitions. GEOKEN also supplied data quality controls, corrected data, intermediate and final products as well as all means of operation and maintenance necessary to complete the services as specify in the contract.

A constructive dialogue was established with GEOKEN during all the survey and the processing of the data. Communications were exchanged through: i) progress reports (during the airborne surveys), ii) preliminary reports and iii) final report. We also noted the professionalism of GEOKEN staff that was keen to do the work in compliance with safety standards imposed by Katco and AREVA Mines and repeated flights to meet specifications defined in the contract. All documents and results were provided in the contract requirements.
For all these reasons, AREVA Mines recommends GEOKEN without any restrictions.

Paris, November the 26th, 2015.

Anne-Laure TENSI
Geophysicist

Maersk Oil Kazakhstan GmbH has been working with Scientific Production Center “Geoken” from year 2011. Our cooperation started from developing Geodinamic Monitoring Program for Dunga field, and construction of geodynamic polygon.

In 2014-2015 Geoken carried out geodynamic survey on the Dunga field, including II class levelling survey, high-precision GNSS observations and gravimetric measurements twice a year. Currently geodynamic monitoring works are ongoing.

All field measurments have been made using high-precision hardware and software package that includes automated gravity meters CG5 Autograv, digital level equipment Leica DNA03, multifrequency receivers Trimble R7 and R5, high-precision antenna of GNSS and GNSS-Ti Choke Ring type, specialized software packages Trimble Business Center, Topcon Tools, ArcGIS, MapINFO, Surfer, Grapher and others.

All the above, as well as professional skills of Geoken specialists, compliance with requirements and work instructions have ensured accuracy of field observations within the limits allowed for geodynamic survey.

In February – March 2016, Geoken performed geotechnical survey on the Dunga field for construction of oil field facilities at two lacations. The works are done in full within best delivery time and at professional level, and delivred the works according to the schedule defined by Maersk Oil Kazakhstan Gmbh.

During our joint work, Geoken showed itself as a partner who sticks to the principles of quality, punctuality, reliability and safety at work. We can recommend Geoken as a reliable business partner.

Yours sincerely

On behalf of MaerskJDil Kazakhstan GmbH

Dauren Nurgaliyev Senior Surveyor