BAR MIB
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1. A technical due diligence report was conducted on the PT. xxxx coal project covering 1,223 hectares in East Kalimantan Province. 2. Exploration works included geological mapping, identification of 12 coal outcrops from 5 seams, and 23 exploration drill holes. 3. Based on limited data from drill holes and outcrops, coal seam models for seams A through E were generated through interpolation and extrapolation. However, additional data is needed to improve the geological models. 4. Based on the preliminary geological models and SR limits of 4-5, total coal resources were estimated between 23.4-31.3 million tonnes. However, the estimates have low confidence due
BAR MIB
- 1. TECHNICAL DUE DILIGENCE xxxx PROJECT SEPTEMBER 2014
- 2. IMPORTANT INFORMATION ABOUT THIS PROJECT i. Geological mapping at Ritan and Buluk San area of 1,223 hectares has been conducted by PT. MIB NUSANTARA, on behalf of PT. xxxx. ii. The concession area consists of 2(two) formations, which are Batu Ayau and Balikpapan formation. The coal outcrops that have been identfied during in the field observation indicated the Batu Ayau formation iii. 12 (Twelve) coal outcrops representing the 5 coals seam have been observed and taken for sample analysis. iv. Drilling activities conducted by PT. XXXX in PT xxxx consist of 23 borehole. Distance before hole is 100 m until 450 meter. v. From the all data we got, we try to make some assumtion about caol subsurface modeling and resources. vi. All modeling and resources we got, was made by any additional interpretation, that because we just have limited data. vii. Really need additional data to proving and covered blank area.
- 3. 1. PT xxxx covers an area of 1.223 Ha, located at Sub-District, East Kalimantan Province. This area is a GREEN FIELD and really recomended to do future exploration. 2. Coal seams is indicated part of Batu Ayau Formation with Late Miocene age. 3. Geological condition STRUCTURALLY MODERATE with gentle dipping 5 – 16 degree to the North East. 4. Exploration drilling in the North Block has condacted by PT. XXXX . Most recent holes with total of 23 drillholes Touch Core, NOT SUPPORTED by geophysics log and only use Jackrow drill with AW pipe size. 5. The deposit is sub-bituminus rank with low ash and medium sulphur. 6. Quality Average 7. The project permitting is summeized below:
- 4. Samarinda to Kota Bangun is appoximatly 3 hours by land road with car And continued by boat up to Kahala which take about 4 hours. From Kahala to the site are it take about 3 hour by car KAHALA PORT GENERAL CONDITION, LOCATION, AND ACCESSIBILITY
- 7. COAL SEAM MODELING AND RESOURCES LIMIT 1. Topography uses SRTM data 2. Coal seam modeling base is limited by 23 drill hole with: • Maximum depth is 80 m, average depth is 58 m • Without geophyscs logging • Power rig drill type with AW pipe size 3. Coal seam modeling base is limited by IUP and model boundary 4. Coal seam modeling base is limited by ‘seam B’. Couple seams just have 2 point of corellation 5. Resources parameters: • Maximum and average of drilling depth • Geophysics logging • Point of coal seam corelation • Thick of coal • Topography condition • Coal seam modeling
- 10. DATABASE GEOLOGICAL MODEL FROM TO DPR-06 8,55 9,75 1,20 1 DPR-06A 60,00 61,20 1,20 DPR-04 28,95 32,97 4,02 DPR-05 22,35 27,95 5,60 1 DPR-05A 30,8 34,9 4,10 2 DPR-06 36,8 41,9 5,10 3 DPR-08 17,95 21,97 4,02 DPR-09 32,00 36,02 4,02 DPR-09A 46,95 50,9 3,95 4 DPR-10A 14,7 15,2 0,50 5 DPR-11A 10,3 10,55 0,25 6 DPR-12 8,4 11,8 3,40 7 DPR-12A 34,25 35,44 1,19 8 DPR-14A 29,2 32,2 3,00 9 DPR-03 17,8 22,5 4,7 1 DPR-04 53,0 57,3 4,3 2 DPR-05A 52,8 56,8 4,0 DPR-07 31,4 35,4 4,0 3 DPR-08 42,0 47,3 5,3 4 DPR-09 56,0 61,7 5,7 5 DPR-09A 69,0 73,0 4,0 DPR-10A 15,9 19,4 3,5 6 DPR-11 17,6 22,5 4,9 7 DPR-11A 33,7 36,2 2,5 8 DPR-12 32,8 33,5 0,7 9 DPR-12 33,7 37,5 3,8 10 DPR-14A 53,5 54,8 1,3 11 POINT OF CORELATION 3 C 3,75 1 A 1,20 2 B 3,26 No SEAM DRILL HOLE COAL THICK AVERANGE THICK
- 11. 2D VIEW SEAM B AS BASE COAL SEAM MODELING
- 12. 3D VIEW SEAM B AS BASE COAL SEAM MODELING 3D VIEW BODY SEAM B AS BASE COAL SEAM MODELING
- 14. GEOLOGICAL MODELING Coal seam modeling regenerated by only 1 point drill and 1 point addetional corelation Coal seam modeling regenerated by assumtion seam A is spreading at all concession area Overburden and striping ratio had been calculated by computerize calculation 1. Seam A vs Topography
- 15. GEOLOGICAL MODELING Coal seam B modeling regenerated by only 9 point drill and 3 point addetional corelation Coal seam modeling regenerated by assumtion seam B is spreading at all concession area Overburden and striping ratio had been calculated by computerize calculation 2. Seam B vs Topography
- 16. Coal seam C modeling regenerated by only 11 point drill and 2 point addetional corelation Coal seam modeling regenerated by assumtion seam C is spreading at all concession area Overburden and striping ratio had been calculated by computerize calculation 3. Seam C vs Topography GEOLOGICAL MODELING
- 17. Coal seam D modeling regenerated by only 2 point drill and 10 point addetional corelation Coal seam modeling regenerated by assumtion seam D is spreading at all concession area Overburden and striping ratio had been calculated by computerize calculation 4. Seam D vs Topography GEOLOGICAL MODELING
- 18. Coal seam E modeling regenerated by only 2 point drill and much point addetional corelation Coal seam modeling regenerated by assumtion seam E is spreading at all concession area Overburden and striping ratio had been calculated by computerize calculation 5. Seam E vs Topography GEOLOGICAL MODELING
- 19. COAL SEAM CALCULATION BY SR MAP 1. Topography uses SRTM data 2. Coal seam modeling base is limited by 23 drill hole with: • Maximum depth is 80 m, average depth is 58 m • Without geophyscs logging • Jackrow drill type with AW pipe size 3. Coal seam modeling base is limited by IUP and model boundary 4. Coal seam modeling base is limited by ‘seam B’. Couple seams just have 2 point of corellation 5. Calculation parameters: • Interburden between coal seam • Coal thickness • Flat SR area
- 20. COAL SR MAP SEAM A
- 21. COAL SR MAP SEAM B
- 22. COAL SR MAP SEAM C
- 23. COAL SR MAP SEAM D
- 24. COAL SR MAP SEAM E
- 25. COAL CALCULATED BY SR AREA SR AREA THICK INCRAMENTAL TONAGE TOTAL TONAGE 1 182 1,2 219 219 2 71 1,2 85 304 3 56 1,2 68 372 4 104 1,2 125 497 5 125 1,2 150 646 6 148 1,2 178 824 7 160 1,2 192 1.016 8 192 1,2 230 1.246 9 221 1,2 265 1.511 10 250 1,2 300 1.811 SR AREA THICK INCRAMENTAL TONAGE TOTAL TONAGE 1 513.250 3,26 1.673.195 1.673.195 2 473.640 3,26 1.544.066 3.217.261 3 737.967 3,26 2.405.772 5.623.034 4 619.345 3,26 2.019.065 7.642.099 5 399.045 3,26 1.300.887 8.942.985 6 171.398 3,26 558.757 9.501.743 7 103.681 3,26 338.000 9.839.743 8 91.176 3,26 297.234 10.136.977 9 90.634 3,26 295.467 10.432.443 10 87.136 3,26 284.063 10.716.507 11 83.470 3,26 272.112 10.988.619 12 79.520 3,26 259.235 11.247.854 13 75.245 3,26 245.299 11.493.153 14 70.623 3,26 230.231 11.723.384 15 65.520 3,26 213.595 11.936.979 16 59.692 3,26 194.596 12.131.575 SEAM B SEAM A SR AREA THICK INCRAMENTAL TONAGE TOTAL TONAGE 1 215.555 3,75 808.331 808.331 2 203.153 3,75 761.824 1.570.155 3 230.334 3,75 863.753 2.433.908 4 738.745 3,75 2.770.294 5.204.201 5 1.491.952 3,75 5.594.820 10.799.021 6 770.127 3,75 2.887.976 13.686.998 SR AREA THICK INCRAMENTAL TONAGE TOTAL TONAGE 1 463.917 1,48 686.597 686.597 2 1.782.412 1,48 2.637.970 3.324.567 3 1.778.443 1,48 2.632.096 5.956.663 4 621.516 1,48 919.844 6.876.506 SR AREA THICK INCRAMENTAL TONAGE TOTAL TONAGE 1 117.134 6,00 702.804 702.804 2 169.861 6,00 1.019.166 1.721.970 3 175.234 6,00 1.051.404 2.773.374 4 157.422 6,00 944.532 3.717.906 5 168.023 6,00 1.008.138 4.726.044 6 172.028 6,00 1.032.168 5.758.212 7 176.033 6,00 1.056.198 6.814.410 8 180.038 6,00 1.080.228 7.894.638 9 184.043 6,00 1.104.258 8.998.896 10 188.048 6,00 1.128.288 10.127.184 SEAM C SEAM D SEAM E
- 26. COAL CALCULATED BY SR AREA SEAM THICK SR LIMIT COAL TONAGE A 1,20 4 497 B 3,26 4 7.642.099 C 3,75 4 5.204.201 D 1,48 4 6.876.506 E 6,00 4 3.717.906 23.441.209 CALCULATION SUMMARY TOTAL SEAM THICK SR LIMIT COAL TONAGE A 1,20 5 646 B 3,26 5 8.942.985 C 3,75 5 10.799.021 D 1,48 5 6.876.506 E 6,00 5 4.726.044 31.345.203TOTAL CALCULATION SUMMARY
- 27. Low confidence on Geology data - Geological database and geological model are below suitable standard because the drill hole were not geophysical logging Multiple thick seam deposit with thin interburden, gentle dipping, potentially to make big single pits along strike Additional drilling prior to verification all old data and recovered blank area, particularly in the sub crop/low wall area KEY ISSUE AND RECOMMENDATION
- 28. OPTIMAL AREA SEAM A, B, C LIMITED BY SR 4
- 29. AVERAGE MIN MAX A-B 1 32,15 32,15 32,15 B-C 9 20,60 1,20 25,65 C-D 12 8,50 4,20 13,55 D-E 0 61,63 54,00 66,00 INTERBURDENSEAM TO SEAM POINT OF CORRELATION SEAM THICK AREA SR LIMIT COAL TONAGE B 3,26 1.664.852 4 5.427.418 C 3,75 1.664.852 4 6.243.195 D 1,48 1.664.852 4 2.463.981 14.134.593 CALCULATION SUMMARY AREA I TOTAL SEAM THICK AREA SR LIMIT COAL TONAGE B 3,26 261.906 4 853.814 C 3,75 261.906 4 982.148 D 1,48 261.906 4 387.621 2.223.582 CALCULATION SUMMARY AREA II TOTAL