East-West Gas Pipeline. Construction Project of 45km Section of Qubuleti (Dn500) Branch Pipeline Cost Estimate Ref.: KOBU -GE05-CM-BOQ-0001-ENG-A01

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1 1 ROW Preparation 1.1 Topsoil stripping and storage along the pipeline ROW m Transportation of Pipes and other Fittings to the Construction Site 2.1 Transportation and stringing of DN500 pipes m 44438,7 2.2 Transportation of DN700 coated pipes m 281,7 2.3 Transportation of DN300 coated pipes m Transportation of DN200 coated pipes m Transportation of DN150coated pipes m Transportation of DN100 coated pipes m Transportation of bends, valves and fittings 28 3 Welding 3.1 Welding of DN500 pipes, corresponding bends and fittings in the pipeline ROW m 44438,7 3.2 Welding of DN700 casing coated pipes in the pipeline ROW m 281,7 4 Inspection of Welded Joints 4.1 X-ray of DN500 welded joints m 44438,7 4.2 X-ray of DN500 valve unit unit X-ray of DN300 valve unit with DN300 branch unit X-ray of DN300 valve unit with DN300 Connector unit X-ray of DN500 PIG Launcher/Reciever units with DN200 branch unit 2 5 Coating Works 5.1 Sandblasting of DN500 welded joints and coating with anticorrosion thermal sleeves m Sandblasting of DN500 welded joints on riv. Rioni crossing and coating with anticorrosion FBE coating m Sandblasting of DN500 of Aerial sections of pipeline and coating with anticorrosion FBE coating m 584,3 5.4 Sandblasting of DN700 casing pipe welded joints and coating with thermal sleeves m 281,7 5.5 Sandblasting of DN500 valve unit welded joints and insulation according to pipe coating unit Sandblasting of DN300 valve unit with DN300 branch welded joints and insulation according to pipe coating unit Sandblasting of DN300 valve unit with DN300 connector welded joints and insulation according to pipe coating unit Sandblasting of DN500 PIG Launcher/Reciever units with DN200 branch and insulation according to pipe coating unit 2 6 Trenching 6.1 Trenching for DN500 pipeline section m 42562,7 7 Pipe Lowering and Backfilling 7.1 Lowering of DN500 coated pipe *(See Note) m 42562,7 7.2 Backfilling of DN500 pipe trench *(See Note) m 42562,7

2 8 Crossings of infrastructure Samterdia-Lanchkhuti-Grigoleti Road Crossing at KP Installation of DN700 casing pipes on the point indicated in the design m 104,5 8.2 Arrangement of directional support pillars on coated DN500 pipes m 104,5 8.3 Putting of DN500 coated pipe in casing m 104,5 Kobuleti Bypass Road Crossing at KP Installation of DN700 casing pipes on the point indicated in the design m 75,8 8.5 Arrangement of directional support pillars on coated DN500 pipes m 75,8 8.6 Putting of DN500 coated pipe in casing m 75,8 Railroad Crossing at kp Installation of DN700 casing pipes on the point indicated in the design m 101,4 8.8 Arrangement of directional support pillars on coated DN500 pipes m 101,4 8.9 Putting of DN500 coated pipe in casing m 101, Closing up end of casing pipe with factory cuffs pcs Installation of DN50 candle per typical drawing pcs 3 Road Crossings at KP and by open trench method 8.12 Dismantling of asphalt cover and restoration to initial condition m Instalation of Concrete slabs on road crossings (2.5x0.5x0.15m) at kp Crossing of Baku-Supsa(WREP) pipeline at kp Instalation of Concrete slabs (1.5x0.1x0.1m) pcs Installation of Dielectrice Material m 2 37,5 9 River and Cannel Crossings 9.1 Rioni River Crossing Arrangement of coated pipeline section under river Rioni, using horizontal directional drilling method *(please, find the note) Lesistskali Cannal Crossing at kp Arrangement of Geotextile material in cannal with 0.08m gravel pillow according to drawings m Arrangement of reno matrases(4x2x0.23m) according to drawings 2 Tskaltsitela Cannal Crossing at kp Arrangement of Geotextile material in cannal with 0.08m gravel pillow according to drawings m Arrangement of reno matrases(4x2x0.23m) according to drawings pcs Arrangement Gabions(2x1x1m) according to drawings pcs 52 Cannal Crossing at kp Arrangement of Geotextile material in cannal with 0.08m gravel pillow according to drawings m Arrangement of reno matrases(4x2x0.23m) according to drawings Arrangement Gabions(2x1x1m) according to drawings pcs 56 Cannal Crossing at kp Arrangement of Geotextile material in cannal with 0.08m gravel pillow according to drawings m Arrangement of reno matrases(4x2x0.23m) according to drawings Arrangement Gabions(2x1x1m) according to drawings pcs 48 Cannal Crossing at kp Arrangement of Geotextile material in cannal with 0.08m gravel pillow according to drawings m Arrangement of reno matrases(4x2x0.23m) according to drawings Arrangement Gabions(2x1x1m) according to drawings pcs 52 Cannal Crossing at kp Arrangement of Concrete slabs(2x1x0.12) in cannal with 0.08m gravel pillow according to drawings 20 Aerial Crossing of River Supsa Arrangement of temporary access road in river bed using rip rap and gravel for installation of pillars, according to 9.17 drawing(kobu60-gwo5-pl-crd-00010) 9.18 Arrangement of Pillars on the point indicated in the design according to drawing(kobu60-gwo5-pl-crd-00010) Preparation and Arrangement of armature frame according to drawing (KOBU60-GWO5-PL-DTL-00024) Filling 500 mm pipes with concrete. m 3 74, Preparaton raft supportss and Arrangement on pillars according to drawing (KOBU60-GWO5-PL-DTL Installation of DN500 pipe on raft supports according to drawing(kobu60-gwo5-pl-crd-00010) m 289, Arrangement of metal frame net at the end of the pipeline and painting according to drawing(kobu60-gwo5-pl-std-00012) 9.24 Pipeline reinforcement on the "pipe exit" locations from ground according to drawing(kobu60-gwo5-pl-std-00004)

3 Aerial Crossing of River Choloki and River Sharistskali 9.25 Arrangement of Pillars on the point indicated in the design according to drawing(kobu60-gwo5-pl-crd-00018) Preparation and Arrangement of armature frame according to drawing (KOBU60-GWO5-PL-DTL-00024) Filling 500 mm pipes with concrete. m Preparaton raft supportss and Arrangement on pillars according to drawing (KOBU60-GWO5-PL-DTL pcs Installation of DN500 pipe on raft supports according to drawing(kobu60-gwo5-pl-crd-00018) m 198, Arrangement of metal frame net at the end of the pipeline and painting according to drawing(kobu60-gwo5-pl-std-00012) 9.31 Pipeline reinforcement on the "pipe exit" locations from ground according to drawing(kobu60-gwo5-pl-std-00004) Aerial Crossingat River Otchkhamuri at kp8+010 and Cannals at kp and at kp ,32 Installation of DN500 FBE coated Aerial sections of pipeline according to drawing(kobu60-gwo5-pl-crd-00018) m 96,7 Instalation of Concrete slabs (1.5x0.1x0.1m) at exit point of pipe from ground according to drawing(kobu60-gwo5-pl-std- 9, ) pcs 6 9,34 Arrangement of dual layer Geotextile material on concrete slabs with 0.1m gravel pillow according to drawing m ,35 Arrangement of metal frame net at the end of the pipeline and painting according to drawing(kobu60-gwo5-pl-std-00012) pcs 6 10 Concrete Works 10.1 Concreting of DN500 pipes with 12 cm monolith iron/concrete - B25 and wrapping rockshield on welded joints მ 994,15 11 Pipe Cleaning and Hydrotesting Pre testing (hidraulic or pneumatic) of DN500 pipe P=8.1 Mpa for 6 hours (before instalation) at railway and road crossings according to drawing (KOBU60-GWO5-PL-SCM-00006) Pre testing of riv. Rioni DN500 pipe hydraulicaly on P=8,1 Mpa or pneumaticaly on P=6.75 Mpa for 6 hours (prior to HDD) according to drawing (KOBU60-GWO5-PL-SCM-00004) Pre testing of riv. Rioni DN500 pipe hydraulicaly on P=6.75 Mpa or pneumaticaly on P=6.75 Mpa for 12 hours (After HDD) according to drawing (KOBU60-GWO5-PL-SCM-00004) Pre testing of riv. Supsa DN500 pipe hydraulicaly on P=8,1 Mpa or pneumaticaly on P=6.75 Mpa for 6 hours (prior to arrangement on pillars) according to drawing (KOBU60-GWO5-PL-SCM-00005) Pre testing of rivers Choloki and Sharistskali DN500 pipe hydraulicaly on P=8,1 Mpa or pneumaticaly on P=6.75 Mpa for 6 hours (prior to arrangement on pillars) according to drawing (KOBU60-GWO5-PL-SCM-00005) m 281,7 m 1010 m 1010 m 289,4 m 198, DN500 pipe cleaning with brush and magnet pig equipped with caliper plate *(See Note) m 44438, DN500 pipe hydrotesting on integrity at P=6.75 Mpa for 24 hours and on hermeticity at P=5,4 Mpa for 12 hours m 44438, DN500 pipe dewatering with paralon pig m 44438, Drying up Dn500 pipeline using special air dryer (heaters) compressors to achieve dew point minimum -20 C m 44438, Testing of DN500 Valve station according to drawing (KOBU60-GWO5-PL-SCM-00003) unit Testing of DN300 Valve station and branch section according to drawing (KOBU60-GWO5-PL-SCM-00003) unit Testing of DN500 Valve station and Connector section according to drawing (KOBU60-GWO5-PL-SCM-00003) unit Testing of DN500 PIG Launcher units with DN200 branch according to drawing (KOBU60-GWO5-PL-SCM-00007) unit Testing of DN500 PIG Reciever units with DN200 branch according to drawing (KOBU60-GWO5-PL-SCM-00007) unit 1

4 12 Stations 12.1 Arrangement of DN500 (without venting) valve unit according to (KOBU60-GWO5-PL-DTL-00006) drawing 12.2 Arrangement of DN500 (with single venting) valve unit in according to (KOBU60-GWO5-PL-DTL-00001) drawing 12.3 Arrangement of DN500 (with double venting) valve unit in according to (KOBU60-GWO5-PL-DTL-00002) drawing Arrangement of DN300 (without venting) valve unit with DN300 branch section in according to (KOBU60-GWO5-PL-DTL ) Arrangement of DN300 (with single venting and Reduction) valve unit with DN300 connector section in according to 12.5 (KOBU60-GWO5-PL-DTL-00008) Instalation of DN500 PIG Launcher/Receiver unit with DN200 branch in according to (KOBU60-GWO5-PL-DTL & 12.6 KOBU60-GWO5-PL-DTL ) drawings 12.7 Arrangement of DN500 (without venting) valve unit's concrete room according to (KOBU60-GWO5-PL-DTL-00007) drawing and arrangement of area according to (KOBU60-GWO5-PL-DTL & KOBU60-GWO5-PL-DTL-00021) drawing Arrangement of DN500 (with single venting) valve unit area according to (KOBU60-GWO5-PL-DTL-00003, KOBU60-GWO PL-DTL and KOBU60-GWO5-PL-DTL-00019) drawing Arrangement of DN500 (with double venting) valve unit area according to (KOBU60-GWO5-PL-DTL-00004, KOBU GWO5-PL-DTL and KOBU60-GWO5-PL-DTL-00019) drawing Arrangement of DN300 (without venting) valve unit area in according to (KOBU60-GWO5-PL-DTL-00012, KOBU60-GWO PL-DTL and KOBU60-GWO5-PL-DTL-00019) drawings Arrangement of DN300 (with single venting and Reduction) valve unit area at KP3+900 in according to (KOBU60-GWO5-PL DTL-00009, KOBU60-GWO5-PL-DTL and KOBU60-GWO5-PL-DTL-00019) Arrangement of KP DN300 (with single venting and Reduction) valve unit's concrete room according to (KOBU GWO5-PL-DTL-00010) drawing and arrangement of area according to (KOBU60-GWO5-PL-DTL & KOBU60-GWO5- PL-DTL-00022) drawing Arrangement of gas uptake impulse device per drawings (KOBU60-GWO5-PL-DTL-00016, KOBU60-GWO5-PL-DTL and KOBU60-GWO5-PL-DTL-00018) for valve units Arrangement of area for DN500 PIG Launcher unit in according to (KOBU60-GWO5-PL-DTL-00020, KOBU60-GWO5-PL DTL და KOBU60-GWO5-PL-DTL-00023) drawing Arrangement of area for DN500 PIG Receiver unit in according to (KOBU60-GWO5-PL-DTL და KOBU60-GWO5-PL DTL-00022) drawing unit 2 pcs 9 13 Electrochemical Protection 13.1 Installation of УКЗH-0,23-1, У1 type cathodic protection station with automatic regulation and GSM modem 13.2 Arrangement of base for cathodic protection station using iron concrete installation 13.3 Arrangement of fencing for cathodic protection station per typical drawing 13.4 Arrangement of grounding for cathodic protection station per typical drawing 13.5 Arrangement of anode grounding per typical drawing unit Putting of one ВВГ cable underground (from CP station to anode bed post) m Putting of one ВВГ cable underground (from anode bed post to anode beds) m Putting of one ВВГ cable underground (from CP station to the dranage post) m Putting of one ВВГ cable underground (from the dranage post to pipe) m Putting of one ВВГ cable underground (from CP post to pipe in distance of 56m and 6m from CP station) m 116 Installation of combined areal indicators and control-measurement units (AM/CP) with single connection to the pipe as per drawing 4 Installation of combined areal indicators and control-measurement units (AM/CP) with dual connection to the pipe as per drawing pcs Installation of control-measurement units (CP) with single connection to pipe as per drawing Installation of control-measurement units (CP) with dual connection to pipe as per drawing Equipping control measurement points with permanent (ЭНЕС-1) comparison electrode according to drawing pcs Putting of ВВГ one cable in the trench of anode grounding m Installation of magnesium protectors (ПМ 10У) at dual connection AM/CP and CP posts Putting of signal tape in the trench at the depth of 0,75 m m 404

5 14 Other Works 14.1 Installation of signal tape along the pipeline in the trench m 42562, Installation of pipeline marker posts (MP) according to drawing Installation of pipeline aereal marker posts (AM) according to drawing Installation of DN500 insulation join (joint to be welded) 14.5 Installation of DN300 insulation join (joint to be welded) pcs Arrangement of DN100 casing pipe around the optical cable according to drawing Dismantling of existing underground pipeline with various diameters (DN500 DN200 DN150) and transportation to 14.7 GOGC's Lanchkhuti Pipeyard m Reinstatement of the construction area in accordance with the Reinstatement Management Plan m Total VAT 18% Total inclusive VAT *Note: 1. A cost estimate presented considers cost of all those materials and devices that are required by the construction design and that are not provided by GOGC. 2. Cost estimate considers cost of cold bending of pipes. 3. Following the completion of works in 11,6 if a caliper plate has identified defects, the contractor will furnish and run a caliper/geometry inspection tool (intelligent PIG) with instrumentation having defect location capabilities at own expense. 4. Following the completion of works in 7.1 and 7.2 shall be performed with strict compliance of Scope of Work document 5. The cost of installation works of the pipeline necessary for arrangement of the underground passage on Rioni river using directional drilling method will be compensated after the passage construction is completed and the results of hydro testing and conduction of calibration plate carried out in compliance with the procedure are satisfactory 6. The address of the Lilo pipeyard is the following: #9 Chirnakhuli St., Tbilisi 7. The address of the Lanchkhuti pipeyard is the following: #51 Agmashenebeli St., Lanchkhuti