JSC "Atlas Copco" with this letter confirms the experience of Nursai Energy LLP in organizing the mobilization of personnel and equipment for the maintenance and repair of equipment. We recommend cooperation with this company, which proved to be a responsible and reliable partner.

LLP "KAZAKHSTAN MAX COOPER OILTECH" (KAZAKHSTAN MAX COOPER OILTECH) with this letter confirms the experience of LLP "Nursai Energy" in organizing the mobilization of personnel and equipment from the original equipment manufacturer (OEM) for the maintenance and repair of equipment. We recommend cooperation with this company, which proved to be a responsible and reliable partner.

Tamyr LLP is a construction and installation company providing services in the field of construction and commissioning of power plants, substations in the territory of the Republic of Kazakhstan. In 2017, the company began construction, installation and commissioning of the Compressor Station with three gas turbine units of GENERAL ELECTRIC equipment on the international project Increasing the capacity of the main gas pipeline Kazakhstan - China (first section) station facilities ССS-5 and for these purposes, as supervised installation and commissioning was involved Nursai Energy LLP. During the cooperation, representatives of Nursai Energy LLP demonstrated high professionalism and efficiency in performing the assigned tasks, such as commissioning MARK6E control panels for PGT-25 gas turbines, commissioning MCC panels with tuning AF-650GP variable frequency drives, tuning the vibration system Bently Nevada3500, and HiMatrix fire and gas detection systems, commissioning of Mokveld control valves, ROTORK hydraulic actuators, commissioning of PCL502/N centrifugal compressor. We were satisfied with the result of joint work and we recommend Nursai Energy LLP as a responsible partner.

Cooperation with Nursai Energy LLP began in November 2017 with commissioning and commissioning of GENERAL ELECTRIC equipment (PGT-25 gas turbines) on the project to increase the capacity of the main gas pipeline Kazakhstan - China of the CCS-5 station structure in the city of Shu. All work was performed with high quality, on time, in compliance with industrial safety rules and safety requirements, which gave us confidence in the right choice of Nursai Energy LLP as a reliable partner. A short list of completed works on GE equipment includes:
1. Installation of Mark6E control panels, their disconnection, putting into operation.
2. Commissioning and commissioning of 0.4 kV McC control panels and gas turbine auxiliary heating equipment
3. Installation, disconnection and commissioning (POWER-UP) of uninterruptible power supply panels
4. Commissioning of the FIRE&GAS carbon dioxide fire extinguishing system.

I hereby confirm that Deena Energy Services Ltd. has on many occasions utilised the services of highly qualified and skilled engineers and technicians from Nursai Energy (Nursai Energy LLP) to support our activities in Russia and the C.I.S. region countries. We have obtained from Nursai Energy mechanical engineers and technicians, as well as electrical and instrumentation & control engineers and technicians, and we have successfully deployed them in support of our customers' installation, commissioning and maintenance outage projects throughout the region. We have on all occasions been supplied by Nursai Energy with very professional technical staff who have executed their assigned tasks to the highest standards of quality and safety. The Nursai Energy engineers and technicians possess a high degree of knowledge, training and experience in particular on the full range of GE heavy-duty gas turbines (such as Frame 5, Frame 6 and Frame 9). I would not hesitate to recommend Nursai Energy and their people for any power generation project.

Control Care has been cooperating with Nursai Energy since 2016. With this letter, we confirm that it is our long-term and reliable partner. Together with Nursai Energy, we conducted trainings on the operation and maintenance of Siemens SGT-400 gas turbines and Siemens STC-V centrifugal compressors for employees of Beineu-Bozoi-Shymkent Main Gas Pipeline. All tasks were completed on time and with high quality. Nursai Energy's personnel have proven their professionalism and competence in the field of rotating equipment such as Gas Turbines, Compressors and Generators. We are pleased with the cooperation and support that Nursai Energy provides to Control Care in Kazakhstan. They have all the necessary skills and work with high quality at the international level. We recommend Nursai Energy as a reliable and professional partner.