Expert in Tunneling Systems & Trenchless Technology (HDD, Microtunneling, Pipe Jacking, Thrustboring, Sheet Piling)

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2 INDEX 2 Company Profile 4 Technical Description 13 Organization Chart 6 Quality & HSE 19 Services Offered 8 Certification 22

3 COMPANY PROFILE

4 Company Profile 4 Thrustboring Technology Contracting Company (TBT) is a privately held Engineering, Procurement and Construction (EPC) Company established in Dammam office, Kingdom of Saudi Arabia. It has since applied its specialized expertise on underground construction field, and directly managing microtunneling & thrustboring installation of various types of pipe in all ground conditions. Inspired to meet the growing demand of trenchless technology in Saudi Arabia, TBT acquired sophisticated MTMB machines from one of the best microtunneling equipment manufacturers in the world, HERRENKNECHT. Currently, we have TBT microtunneling boring machines which are capable of making tunnels of diameter ranging from 1000mm to 2000mm and as the company rapidly expands, additional machines shall be made available to cater the needs of future clients. TBT strategies are to deliver quality end products, on time, to cost and to the satisfaction of all the stakeholders, and with environmental consciousness.

5 ORGANIZATIONAL CHART

6 Organizational Chart 6

7 SERVICES OFFERED

8 SERVICES OFFERED Micro Tunneling H. D. D. Sheet Piling Dewatering

9 Microtunneling 9

10 Horizontal Directional Drilling (H.D.D.) 11

11 Sheet Piling 10

12 Dewatering 12

13 TECHNICAL DESCRIPTION

14 What is Microtunneling? 14 Microtunneling is a process that uses a remotely controlled Tunneling Machine combined with a pipe jacking technique to directly install product pipelines underground a single pass. This process avoids the need to have long stretches of open trench for pipe laying, which causes extreme disruption to the community. Product pipes of a variety of materials can be used, but typically consist of steel concrete and GRP. Technical benefits associated with pipe jacking are: Minimizes disruption to existing utilities and services during construction. Faster construction, especially in highly urbanized environments. Considerably reduces the amount of excavated materials to be stacked/ removed compared to an open cut excavation method because only the pipe bore, not an open trench is excavated. Avoids the need to de-water the pipe trench, thereby significantly reducing the risk of collapse/settlement to surrounding structures/ roads, compared to open trench installation methods. Reduces the need for man-entry and improves operator/ worker safety because of remote control capability. Minimizes restoration costs to road surfaces after construction. Accurate line installation with tolerance of ± 20mm Smooth internal finish gives good flow characteristics. Prevention of ground water intrusion by use of pipes with sealed flexible joints.

15 Cutting Wheel 15 The microtunneling boring machine is equipped with tools which enables excavation of cutting. The cutting wheels are differently designed according to grounds. For loose grounds, wheels fitted with scrappers are used. For rocky grounds, cutting wheels with disc cutters are used.

16 Guidance System 16 For straight alignments, the machine uses a laser guidance system, whose active target, located in the head of the machine is tracked in real time from the control deck. For curved alignments, the guidance system is made of gyroscope. The alignment is corrected as necessary using steering cylinders, enabling the head of the microtunneling boring machine to be oriented as directed. Electronic laser system An advance laser, which is installed at fixed point in the launch shaft, is aimed at a fixed electronic target installed on the machine. The results are transferred to an industrial computer, and displayed on a monitor.

17 Bentonite System 17 During pipe jacking either the complete pipe conduit is moved or, when intermediate jacking stations are installed, long partial sections. The result is friction on the external side of the pipe conduit. The frictional resistance has to be overcome during tunneling. During pipe jacking the bentonite suspension serves as a means of support and lubrication. It is pressed outwards through injection nozzles in the back up pipe and acts as a supplement to the product pipe by filling the ring space which results from the difference in diameter between overcut and pipe. The liquid film around the pipe reduces the friction between the pipe casing and as a result, also the tunneling force. For tunneling in loose soil, the bentonite suspension is also used to support the working face. In order to avoid subidence, the ring gap should always be filled. When the pipe jacking has been completed, the lubrication medial can be expelled with a mixture based on a cement and water and possibly additives. Once the grout has set the lubrication pipes, the lubrication can be de-coupled and the opening in the product pipe can be sealed by pipe plugs.

18 Overall Layout 18

19 QUALITY, HEALTH, SAFETY & ENVIRONMENT

20 Quality Policy 20 Thrustboring Technology Contracting Company is a specialized expert in providing services related to underground construction field and directly managing microtunneling & thrustboring installation of various types of pipe in all ground conditions. We will meet the requirements of our internal and external customers by effectively applying our management systems to achieve the necessary quality results in the safest, most practical and reliable manner consistent with our customer needs and expectations. It is every employee s responsibility to ensure our quality and strategic business objectives are attained. Our strategy and focus shall be demonstrated through the following commitments: Provide the necessary resources to establish, implement and maintain an effective Quality Management System based on the requirements of ISO 9001:2008 standard Understanding and fulfilling our customer requirements and will be striving to exceed customer expectations. Comply with applicable statutory and legal requirements Provide direction, training and supervision for our employees to increase awareness and competency Periodic review of the Quality system and established objectives for continuing suitability With conscientious, we continually improve the effectiveness of our Quality Management system that conforms with ISO 9001:2008 standards.

21 HSE Policy 21 Thrustboring Technology Contracting Company (TBT) is a specialized expert in providing services related to underground construction field and directly managing microtunneling & thrustboring installation of various types of pipe in all ground conditions. TBT is committed to protecting the health and safety of its employees and others involved and the protection of the environment are also our primary concerns. To deliver on our commitments, we will: Establish and maintain HSE management system and ensure the management system and practices are incorporated into all aspects of company operations Communicate company HSE policy and procedures to all employees and ensure they take personal responsibility to prevent injury to themselves, their colleagues and everyone else Comply with applicable statutory, regulatory and legal HSE requirements Strive to anticipate and eliminate hazards that may result in personal injuries, illnesses, and damage to properties and environment Continually improve HSE management system through regular audits, management reviews and site walk throughs Make it known that No activity is so important that we cannot take time to do it safely

22 ISO CERTIFICATION & APPROVALS

23 Certification 23 Thrustboring Technology Contracting Company (TBT) has achieved ISO 9001:2008 certification through ACM Limited -UK, which is one of the leading assessment, verification and certification bodies of the world. This achievement is an important milestone for us as it brings us a step closer to our corporate goals. Through a process of continual improvement, we aim to deliver supreme quality services. TBT is also pursuing to achieve integrated management system (ISO 9001:2008, OHSAS 18001:2007 & ISO 14001:2004) Certification and soon it will be realized.

24 Ministry Approvals 24

25 Aramco Vendor Registration 24 Our ARAMCO Vendor Registration is:

26 Thank you for listening P.O. Box Dammam Tel: ; Fax: