Kangaroo updates coal resources, reserves for Pakar coal projects
Tuesday, September 12 2017 - 03:15 AM WIB
ASX-listed Kangaroo Resources Limited said it has undertaken the necessary geological assessments and studies required to update the estimated coal resources and coal reserves for several of its thermal coal mines in Indonesia?s East Kalimantan Province.
The company said in a statement on Tuesday that the thermal coal mine projects include those run by subsidiaries PT Tiwa Abadi (TA), PT Tanur Jaya (TJ) and PT Dermaga Energi (DE), which are collectively known as Pakar North concession; and PT Cahaya Alam (CA), PT Bara Sejati (BS) and PT Sumber Api (SA), which are collectively known as Pakar South concession, in which the company currently holds or has contractual rights to 99 percent interest.
Kangaroo said that the update coal resources and reserves are reported in accordance with the reporting guidelines of the 2012 Joint Ore Reserves Committee of The Australasian Institute of Mining and Metallurgy, Australasian Institute of Geoscientists, and Minerals Council of Australia (JORC Code 2012).
?There has been no new drilling on the Pakar North and Pakar South areas since 2009 and the primary reason for the independent update of the coal resources and coal reserves is to bring the company?s reporting in line with the JORC Code 2012 as the company gets closer to considering development options on its core projects,? the company said in the statement.
However, the company said that drilling and mining success at the adjacent Bayan concessions has had a positive impact on the updated estimation of the coal resources and coal reserves.
RPM was engaged by the company to complete independent estimates (the Statements) of the open cut coal resources and coal reserves within Pakar North and Pakar South coal concessions, it added.
The Statements report the following Coal Resources and Coal Reserves as at 31 December 2016:
a) Total Coal Resources (inclusive of Coal Reserves) for Pakar North and Pakar South have been estimated at 1,090 Mt (191Mt Measured, 533Mt Indicated and 366Mt Inferred); and
b) Total Coal Reserves for Pakar North and Pakar South have been estimated at 399Mt (127Mt Proved and 272Mt Probable)
The Coal Resources and Coal Reserves estimate supersedes the prior estimate as at December 2010 and reveals a decrease in Coal Resources of 1,929Mt (80Mt increase in Measured, 559Mt decrease in Indicated and 1,450Mt decrease in Inferred categories) and a decrease in Coal Reserves of 43Mt (111Mt increase in Proved and 154Mt decrease in Probable categories).
Coal Resources and Coal Reserves are quoted on a 100 percent basis.
Due to the differentiation in geology, geography and coal quality, Pakar North and Pakar South are considered as separate material mining projects.
The company has rights to utilize 30 percent of Bayan?s haul road and barge loading capacity at Senyiur through an Access Agreement. Bayan?s haul road passes either through or near to the majority of the company?s mining concessions in North and Pakar South.
Statement of coal resources and coal reserves
Table 1: Coal Resources
| JORC 2012 Code | Measured | Indicated | Inferred | Total | Total Moisture | Calorific Value | Ash | Total Sulphur | Inherent Moisture | Relative Density |
as at 31 December 2016 |
Million Tonnes | % AR | Kcal/kg GAR | % ADB | % ADB | % ADB | In situ | |||
| Pakar North | ||||||||||
| - PT. Tiwa Abadi | 7 | 79 | 65 | 151 | 34.4 | 4,315 | 3.5 | 0.11 | 23.0 | 1.27 |
| - PT. Tanur Jaya | 103 | 105 | 181 | 389 | 38.8 | 3,970 | 4.9 | 0.12 | 19.3 | 1.24 |
| - PT. Dermaga Energi | 81 | 56 | 22 | 159 | 43.0 | 3,680 | 4.9 | 0.13 | 18.4 | 1.21 |
| Sub-Total Pakar North | 191 | 240 | 268 | 699 | 38.8 | 3,980 | 4.6 | 0.12 | 19.9 | 1.24 |
| Pakar South | ||||||||||
| - PT. Sumber Api | - | 9 | 6 | 15 | 46.4 | 3,200 | 6.3 | 0.21 | 13.4 | 1.22 |
| - PT. Cahaya Alam | - | 99 | 56 | 155 | 48.4 | 3,140 | 5.9 | 0.21 | 13.3 | 1.21 |
| - PT. Bara Sejati | - | 185 | 36 | 221 | 49.6 | 3,020 | 6.0 | 0.19 | 13.2 | 1.19 |
| - PT. Apira Utama | - | - | - | - | - | - | - | - | - | - |
| - PT. Silau Kencana | - | - | - | - | - | - | - | - | - | - |
| Sub-Total Pakar South | - | 293 | 98 | 391 | 49.0 | 3,075 | 6.0 | 0.20 | 13.2 | 1.20 |
| Total | 191 | 533 | 366 | 1,090 | 42.5 | 3,655 | 5.1 | 0.15 | 17.5 | 1.23 |
Table 2: Coal Reserves
| JORC 2012 Code | Proved | Probable | Total | Total Moisture | Average Calorific Value | Ash | Total Sulphur | Relative Density |
| as as 31 December 2016 | Million Tonnes | % AR | Kcal/kg GAR* | % ADB | % ADB | In situ | ||
| Pakar North | ||||||||
| - PT. Tiwa Abadi | 3 | 58 | 61 | 34.9 | 4,250 | 3.6 | 0.10 | 1.26 |
| - PT. Tanur Jaya | 69 | 40 | 109 | 39.0 | 3,820 | 5.6 | 0.11 | 1.26 |
| - PT. Dermaga Energi | 55 | 11 | 66 | 42.6 | 3,660 | 4.1 | 0.09 | 1.22 |
| Sub-Total Pakar North | 127 | 109 | 236 | 38.9 | 3,885 | 4.7 | 0.10 | 1.25 |
| Pakar South | ||||||||
| - PT. Sumber Api | - | 5 | 5 | 46.7 | 3,100 | 5.1 | 0.14 | 1.23 |
| - PT. Cahaya Alam | - | 40 | 40 | 51.1 | 2,900 | 4.5 | 0.11 | 1.19 |
| - PT. Bara Sejati | - | 118 | 118 | 50.1 | 2,980 | 4.1 | 0.11 | 1.19 |
| - PT. Apira Utama | - | - | - | - | - | - | - | - |
| - PT. Silau Kencana | - | - | - | - | - | - | - | - |
| Sub-Total Pakar South | - | 163 | 163 | 50.2 | 2,965 | 4.2 | 0.11 | 1.19 |
| Total | 127 | 272 | 399 | 43.6 | 3,510 | 4.5 | 0.11 | 1.23 |
Editing by Reiner Simanjuntak