Technical Report - Southern Arc Minerals

Transcription

Independent Technical Report
for the West Lombok Gold and
Copper Project,
Lombok, Indonesia
Report Prepared for
Southern Arc Minerals Inc.
Report Prepared by
SRK Consulting (Canada) Inc.
2CS032.000
August 23, 2013
2CS032.000 – Southern Arc Minerals Inc.
Independent Technical Report for the West Lombok Gold and Copper Project, Lombok, Indonesia
Page i
Independent Technical Report for the West
Lombok Gold and Copper Project,
Lombok, Indonesia
Southern Arc Minerals Inc.
Suite 1680 – 200 Burrard Street
Vancouver, B.C., Canada V6C 3L6
e-mail: [email protected]
website: www.southernarcminerals.com
Tel: +1.604.676.5241
Fax: +1.604.676.5246
Suite 2200-1066 West Hastings Street
Vancouver, B.C., Canada V6E 3X2
e-mail: [email protected]
website: www.srk.com
Tel: +1.604.681.4196
Fax: +1.604.687.5532
SRK Project Number 2CS032.000
Effective date:
Signature date:
July 11, 2013
August 23, 2013
Authored by:
Gilles Arseneau, P. Geo.
Associate Consultant
Peer Reviewed by:
Marek Nowak, P. Eng.
Principal Geostatistician
Cover: View of Montong Botek Hill with Porphyry Mineralisation, West Lombok Project, Indonesia.
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Important Notice
This report was prepared as a National Instrument 43-101 Technical Report for Southern Arc
Minerals Inc. (Southern Arc or the company) by SRK Consulting (Canada) Inc. (SRK). The quality of
information, conclusions, and estimates contained herein is consistent with the level of effort
involved in SRK‟s services, based on: i) information available at the time of preparation, ii) data
supplied by outside sources, and iii) the assumptions, conditions, and qualifications set forth in this
report. This report is intended for use by Southern Arc subject to the terms and conditions of its
contract with SRK and relevant securities legislation. The contract permits Southern Arc to file this
report as a Technical Report with Canadian securities regulatory authorities pursuant to National
Instrument 43-101, Standards of Disclosure for Mineral Projects. Except for the purposes legislated
under provincial securities law, any other uses of this report by any third party is at that party‟s sole
risk. The responsibility for this disclosure remains with Southern Arc. The user of this document
should ensure that this is the most recent Technical Report for the property as it is not valid if a new
Technical Report has been issued.
Copyright
This report is protected by copyright vested in SRK Consulting (Canada) Inc. It may not be
reproduced or transmitted in any form or by any means whatsoever to any person without the written
permission of the copyright holder, other than in accordance with stock exchange and other
regulatory authority requirements.
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Executive Summary
Introduction
SRK Consulting (Canada) Inc. (SRK) has been retained by Southern Arc Minerals Inc. (Southern Arc
or the company) to prepare a technical report summarizing the mineral resources for the West
Lombok Project. The mineral resource estimate is to form the first time disclosure of mineral
resources by Southern Arc for the West Lombok Property.
SRK‟s scope of work for the West Lombok Property included the construction of mineral resource
models for the Raja, Bising and Tibu Serai epithermal gold mineralisation, and the Selodong
porphyry copper gold mineralisation and the preparation of an independent technical report in
compliance with National Instrument 43-101 and Form 43-101F1 guidelines.
The mineral resource statement reported herein is a collaborative effort between Southern Arc and
SRK personnel. The exploration database was compiled and maintained by Southern Arc, and was
audited by SRK. The geological model and outlines for the gold mineralisation were constructed by
SRK from a two-dimensional geological interpretation provided by Southern Arc. In the opinion of
SRK, the geological model is a reasonable representation of the distribution of the targeted
mineralisation at the current level of sampling. The mineral resource statement reported herein was
presented to Southern Arc in a memorandum report on July 11, 2013. In accordance with National
Instrument 43-101 guidelines, Dr. Arseneau visited the West Lombok Property on December 6
through 9, 2011 and on April 23 to 26, 2013 accompanied by Andrew Rowe Executive Vice
President and Chief Geologist of Southern Arc.
Property Description and Ownership
The West Lombok Property hosts an early stage gold and copper exploration project located in
Indonesia. It is located on the southwest corner of the Island of Lombok and covers a northwest
trending mineralized corridor that extends for approximately 13 by 7 kilometres. Southern Arc
Minerals Inc., through Indotan Lombok Pte. Ltd., holds a 90% interest in PT. Indotan Lombok Barat
Bangkit (“PT ILBB”), an Indonesian approved foreign investment company (Penanaman Modal Asing
or PMA Company that holds a 100% interest in the West Lombok Property. The remaining 10%
interest of PT ILBB is held by the West Lombok Regency Government as a free-carry loan
arrangement.
Geology and Mineralisation
The geology of the West Lombok Property is characterized by an island-arc volcano-sedimentary
succession of Late-Oligocene to Quaternary age. The southern parts of Lombok Island are overlain
by Late Oligocene to Middle Miocene, low potassium calc-alkaline to weakly alkaline andesitic
volcanic and interbedded volcaniclastic rocks, associated low potassium intermediate intrusions and
shallow marine sedimentary rocks and limestone.
The West Lombok Property covers a northwest trending structural corridor of mineralisation and
alteration hosting three main prospects: the Pelangan epithermal gold prospect, the Mencanggah
epithermal/porphyry district, and the Selodong porphyry intrusive complex. The Raja resource area
is situated within the Pelangan Prospect, the Bising and Tibu Serai resource areas are within the
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Mencanggah Prospect and the Selodong porphyry copper-gold deposit is within the Selodong
Prospect area.
Exploration Status
A total of 210 BLEG, 210 stream sediments, 6 rock chips and 14 rock float samples were collected in
the Pelangan-Mencanggah area. Geological mapping traverses were conducted using tape and
compass surveys over a 35 square kilometre area.
Drilling has been carried out on the Mencanggah Prospect area by Southern Arc and on the
Selodong and Pelangan Prospect areas by Newmont and Southern Arc. Drilling by Southern Arc
was carried out using up to ten drill rigs. A total of 47,750 m have been drilled in 253 holes on the
property.
SRK is of the opinion that the drilling programs carried out by Southern Arc on the West Lombok
property are sufficient and adequately spaced for use in the estimation of mineral resources for the
Pelangan, Mencanggah and Selodong prospect areas.
Mineral Resource Estimates
The mineral resource model prepared by SRK considers 253 of the core boreholes drilled by
Southern Arc and previous owners of the property during the period of 2005 to 2013. Of these, 99
drill holes intersected the mineralised zones and are included in the resource estimate: 36 drill holes
totalling 5,787 m were included in the Raja resource model, 22 drill holes totalling 3,830 m were
included in the Bising model, 10 holes totalling 1,370 m were included in the Tibu Serai model and
31 holes totalling 11,012 m were included in the Selodong model. The resource estimation work was
completed by Dr. Gilles Arseneau, P.Geo. (APEGBC #23474) an appropriate “independent qualified
person” as this term is defined in National Instrument 43-101. The effective date of the resource
statement is June 29, 2013.
Mineral resources were estimated for four separate deposits by Ordinary Kriging using Gemcom
block modelling software in three separate models. The Raja, Bising and Tibu Serai block model
used 10 x 10 x 5 m blocks and the Selodong model used a 10 x 10 x 10 m block. Grade estimates
were based on capped, 1 m composited assay data for Raja, 1.5 m composited data for Bising and
Tibu Serai and 3 m composites for the Selodong. Gold capping levels were set at 30 g/t for the Raja
model, 5 g/t for the Bising and Tibu Serai models and 4 g/t for the Selodong model. All blocks in all
models were classified as inferred mineral resources. Mineral resources for Bising and Tibu Serai
were estimated in the same block model.
Mineral resources that are not mineral reserves do not have demonstrated economic viability. The
estimate of mineral resources may be materially affected by environmental, permitting, legal, title,
taxation, sociopolitical, marketing, or other relevant issues. The quantity and grade of reported
inferred resources in this estimation are uncertain in nature. There has been insufficient exploration
to define these inferred resources as an indicated or measured mineral resource. It is uncertain if
further exploration will result in upgrading them to an indicated or measured mineral resource
category.
The mineral resources were estimated using current Canadian Institute of Mining, Metallurgy and
Petroleum (CIM) standards, definitions and guidelines. SRK considers that major portions of the
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mineralisation at the West Lombok Property may be amenable for open pit extraction. In order to
determine the quantities of material offering “reasonable prospects for economic extraction” by an
open pit, SRK used a pit optimizer and reasonable mining assumptions to evaluate the proportions
of the block model that could be “reasonably expected” to be mined from an open pit. The mineral
resources for the West Lombok Property are summarised in Table i below:
Table i: Mineral Resource Statement*, West Lombok Project, Indonesia, SRK Consulting, July 11, 2013.
Deposit
Class
Tonnage
Grade
(tonnes)
Cap Au
(g/t)
Contained
Metal
Au (Oz)
Grade
Cap
Ag
(g/t)
Contained
Metal Ag
(Oz)
Grade
Cu
(%)
Contained
Metal
Cu (lbs)
Raja
Inferred
3,898,000
2.63
329,700
14
1,821,000
ND
ND
Bising
Inferred
6,908,000
0.88
195,550
ND
ND
ND
ND
Tibu Serai
Inferred
977,000
1.36
42,570
ND
ND
ND
ND
Inferred
66,750,000
0.43
922,800
ND
ND
0.27
397,324,00
0
Selodong
* Reported at a cut-off grade of 0.5 g/t gold equivalent inside a Whittle pit shell for Raja, a 0.5 g/t Au cut-off for Bising and Tibu Serai
and a 0.25 copper equivalent for Selodong. Gold equivalent is calculated using US$1500 per ounce of gold and US$25 per ounce of
silver and 100% metal recoveries are assumed for both metals. Copper equivalent is calculated using US$1500 per ounce of gold and
US$3.56 per pound of copper and 100% metal recoveries are assumed for both metals. Mineral resources are not mineral reserves
and do not have demonstrated economic viability. All numbers have been rounded to reflect the relative accuracy of the estimates.
Gold was capped at 30 g/t for Raja, 5 g/t for Bising and Tibu Serai and 4 g/t for Selodong. No capping was applied to copper.
Conclusion and Recommendations
The West Lombok Property hosts at least four separate mineral deposits within a 10 km strike
length. Both epithermal gold and porphyry copper-gold deposits have been identified and a large
portion of the property still remains to be explored in detail. All deposits identified so far are still open
along strike and at depth and additional drilling could discover additional mineralisation, especially at
Raja where the possibility of finding mineralisation that could be amenable to underground mining
seems very good.
The West Lombok Property contains several other mineral occurrences and only a small portion of
the favourable ground has been drill tested to date. SRK is of the opinion that the untested mineral
occurrences represent a great opportunity to locate additional mineralisation on the West Lombok
Property.
SRK recommends that Southern Arc continue to explore the West Lombok Property. Specifically,
SRK recommends:




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At Raja, further 2,625 m of drilling is required to upgrade the resource status and to extend
resources down-plunge of open high-grade shoots;
A further 1,385 m of drilling is required on Bising to infill the upper high-grade parts of the
structure and test open extensions along strike and down dip;
At Tibu Serai, where the current resource zone is only drilled on a 250 m long zone of MSB,
further drilling is required to test open extensions down dip and along strike;
Metallurgical sampling and testing at Raja and Bising Deposits;
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

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Scout drilling to test the Lala structure located some 350 m east of, and parallel to the Raja
deposit. Here numerous high-grade rock chip samples have been collected along an 800 metre
strike zone;
Scout drilling is warranted at several other targets with high-grade rock chip sampling at
Mencanggah, including the 2-km long Mahoni zone;
Selective ground IP geophysics is recommended to focus porphyry drill testing on the higher
priority porphyry targets;
SRK estimates that the first exploration phase at Raja will cost approximately $766,000.Contingent
on positive results from the first phase of drilling, SRK recommends an additional $421,000 in
exploration expenditures and an additional $800,000 of scout drilling for a total exploration
commitment of approximately $2 million.
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Table of Contents
Important Notice ................................................................................................................ ii
Copyright ........................................................................................................................... ii
Executive Summary ......................................................................................................... iii
Introduction ...............................................................................................................................iii
Property Description and Ownership .........................................................................................iii
Geology and Mineralisation .......................................................................................................iii
Exploration Status .................................................................................................................... iv
Mineral Resource Estimates .................................................................................................... iv
Conclusion and Recommendations ........................................................................................... v
Table of Contents ............................................................................................................ vii
List of Tables ..................................................................................................................... x
List of Figures................................................................................................................... xi
1
Introduction and Terms of Reference ...................................................................... 13
1.1
1.2
1.3
1.4
1.5
1.6
1.7
Scope of Work ............................................................................................................... 13
Work Program................................................................................................................ 14
Basis of Technical Report .............................................................................................. 14
Qualifications of SRK and SRK Team ............................................................................ 14
Site Visit......................................................................................................................... 15
Acknowledgement ......................................................................................................... 15
Declaration .................................................................................................................... 15
2
Reliance on Other Experts ........................................................................................ 17
3
Property Description and Location .......................................................................... 18
3.1
3.2
3.3
3.4
3.5
4
Mineral Tenure............................................................................................................... 19
Underlying Agreements ................................................................................................. 20
Permits and Authorization .............................................................................................. 20
Environmental Considerations ....................................................................................... 20
Mining Rights in Indonesia ............................................................................................. 23
Accessibility, Climate, Local Resources, Infrastructure and Physiography ........ 24
4.1
4.2
4.3
4.4
Accessibility ................................................................................................................... 24
Local Resources and Infrastructure ............................................................................... 24
Climate .......................................................................................................................... 24
Physiography ................................................................................................................. 24
5
History ........................................................................................................................ 26
6
Geological Setting and Mineralisation..................................................................... 27
6.1
6.2
6.3
Regional Geology .......................................................................................................... 27
Property Geology ........................................................................................................... 28
Mineralisation ................................................................................................................ 31
6.3.1
6.3.2
6.3.3
7
Pelangan Prospect ............................................................................................................. 31
Mencanggah Prospect ....................................................................................................... 32
Selodong Prospect ............................................................................................................. 34
Deposit Types ............................................................................................................ 35
7.1.1
7.1.2
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Porphyry style mineralisation ............................................................................................. 35
Epithermal gold mineralisation ........................................................................................... 35
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Exploration................................................................................................................. 36
8.1
8.2
8.3
9
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Pelangan Prospect ........................................................................................................ 36
Mencanggah Prospect ................................................................................................... 44
Selodong Prospect ........................................................................................................ 48
Drilling ........................................................................................................................ 52
9.1
Pelangan Epithermal Prospect ....................................................................................... 52
9.1.1
9.2
9.2.1
9.3
Mencanggah Drilling Results ............................................................................................. 59
Selodong Prospect ........................................................................................................ 61
9.3.1
9.4
Pelangan Drilling Results ................................................................................................... 53
Mencanggah Prospect ................................................................................................... 58
Selodong Drill Results........................................................................................................ 62
SRK Comments ............................................................................................................. 65
10 Sample Preparation, Analyses, and Security .......................................................... 66
10.1
10.2
10.3
10.4
10.5
Surface Mapping Samples ............................................................................................. 66
Drilling Samples Preparation and Analyses ................................................................... 67
Specific Gravity Data ..................................................................................................... 68
Quality Assurance and Quality Control Programs .......................................................... 69
SRK Comments ............................................................................................................. 70
11 Data Verification ........................................................................................................ 71
11.1 Verifications by Southern Arc ......................................................................................... 71
11.2 Verifications by SRK ...................................................................................................... 71
11.2.1
11.2.2
Site visit .............................................................................................................................. 71
Verifications of analytical quality control data .................................................................... 71
12 Mineral Processing and Metallurgical Testing ........................................................ 73
13 Mineral Resource Estimates ..................................................................................... 74
13.1
13.2
13.3
13.4
Introduction .................................................................................................................... 74
Resource Estimation Procedures ................................................................................... 74
Resource Database ....................................................................................................... 75
Solid Body Modelling ..................................................................................................... 75
13.4.1
13.4.2
13.4.3
Raja Deposit – Pelangan Prospect .................................................................................... 75
Bising and Tibu Serai Deposits – Mencanggah Prospect ................................................. 76
Selodong Deposit – Selodong Prospect ............................................................................ 77
13.5 Compositing ................................................................................................................... 78
13.5.1
13.5.2
13.5.3
13.6 Evaluation of Outliers ..................................................................................................... 80
13.6.1
13.6.2
13.6.3
Bising and Tibu Serai deposits – Mencanggah Prospect .................................................. 80
13.7 Statistical Analysis and Variography .............................................................................. 81
13.7.1
13.7.2
13.7.3
13.8 Block Model and Grade Estimation ................................................................................ 84
13.8.1
13.8.2
Grade models .................................................................................................................... 86
Bulk density model ............................................................................................................. 86
13.9 Model Validation and Sensitivity .................................................................................... 87
13.9.1
13.9.2
13.9.3
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Validation of Raja model .................................................................................................... 87
Validation of Bising – Tibu Serai model ............................................................................. 88
Validation of Selodong Model ............................................................................................ 90
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13.10 Mineral Resource Classification ..................................................................................... 94
13.11 Mineral Resource Statement.......................................................................................... 95
13.12 Grade Sensitivity Analysis ............................................................................................. 97
14 Adjacent Properties................................................................................................. 101
15 Other Relevant Data and Information .................................................................... 102
16 Interpretation and Conclusions.............................................................................. 103
17 Recommendations .................................................................................................. 105
17.1 Pelangan ..................................................................................................................... 105
17.2 Mencanggah ................................................................................................................ 107
18 Acronyms and Abbreviations ................................................................................. 109
19 References ............................................................................................................... 110
20 Date and Signature Page ........................................................................................ 111
APPENDIX A .................................................................................................................. 113
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List of Tables
Table 13.1: Comparison of sample length and average gold grade for Raja Deposit .................................... 79
Table 13.2: Comparison of sample lengths and average gold grade for the Bising and Tibu Serai
Deposits ............................................................................................................................................ 79
Table 13.3: Comparison of sample lengths and average gold grade for the Selodong Deposit ..................... 80
Table 13.4: Capping Level for Raja Deposit .................................................................................................... 80
Table 13.5: Statistics for gold assays and gold composites – Raja Deposit .................................................. 82
Table 13.6: Basic statistics for assays and composited data – Bising and Tibu Serai Deposits .................... 82
Table 13.7: Basic statistics for gold and copper assays and composites – Selodong Deposit ....................... 83
Table 13.8: Au and Cu exponential correlogram parameters by deposit ........................................................ 84
Table 13.9: Block model setup parameters ..................................................................................................... 85
Table 13.10: Search parameters by deposit and metal ................................................................................... 86
Table 13.11: Bulk density used for resource estimation.................................................................................. 87
Table 13.12: Assumptions considered for conceptual open pit optimization .................................................. 95
Table 13.13: Mineral Resource Statement*, Raja Deposit, West Lombok Project, Indonesia, SRK
Consulting, July 13, 2013 ................................................................................................................. 96
Table 13.14: Mineral Resource Statement*, Bising Deposit, West Lombok Project, Indonesia, SRK
Consulting, July 13, 2013 ................................................................................................................. 96
Table 13.15: Mineral Resource Statement*, Tibu Serai Deposit, West Lombok Project, Indonesia,
SRK Consulting, July 13, 2013 ......................................................................................................... 96
Table 13.16: Mineral Resource Statement*, Selodong Deposit, West Lombok Project, Indonesia, SRK
Consulting, July 13, 2013. ................................................................................................................ 96
Table 13.17: Global block model quantities and grade estimates*, Raja Deposit, West Lombok
Project, at various cut-off grades ...................................................................................................... 97
Table 13.18: Global block model quantities and grade estimates*, Bising Deposit, West Lombok
Table 13.19: Global block model quantities and grade estimates*, Tibu Serai Deposit, West Lombok
Table 13.20: Global block model quantities and grade estimates*, Selodong Deposit, West Lombok
Table 17.1 Proposed drilling for Raja Deposit ............................................................................................... 105
Table 17.2 Proposed Phase 3 drill holes for Bising Deposit ......................................................................... 107
Table 17.3 Estimated cost for the exploration program proposed for the West Lombok Project .................. 107
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List of Figures
Figure 3.1: Property location map ................................................................................................................... 18
Figure 3.2: Property access and claim boundaries ......................................................................................... 19
Figure 3.3: Southern Arc West Lombok mineral tenure map .......................................................................... 22
Figure 4.1: Typical landscape in the project area ............................................................................................ 25
Figure 6.1: Regional geology setting ............................................................................................................... 28
Figure 6.2: Idealized stratigraphic column of Southwest Lombok Island ........................................................ 29
Figure 6.3: Location of mineral prospects ....................................................................................................... 33
Figure 8.1: Results of the CSAMT survey in the Pelangan Prospect .............................................................. 38
Figure 8.2: Results of BLEG sampling program in Pelangan-Mencanggah Prospect areas .......................... 39
Figure 8.3: Surface sampling results for the Raja Deposit, Pelangan Prospect ............................................. 41
Figure 8.4: Surface sampling results for the Jati and Tanjung targets, Pelangan Prospect ........................... 43
Figure 8.5: Surface sampling results for the Kayu Putih target, Pelangan Prospect ...................................... 43
Figure 8.6: Surface sampling results for the Simba target, Pelangan Prospect.............................................. 44
Figure 8.7: Surface rock samples collected from the Mencanggah Prospect ................................................. 45
Figure 8.8: Surface samples from the Bising and Tibu Serai deposits, Mencanggah Prospect ..................... 47
Figure 8.9: Surface sampling for the Waterfall target, Mencanggah Prospect................................................ 48
Figure 8.10: Surface sampling for the Selodong Prospect .............................................................................. 49
Figure 9.1: Significant drill intercepts from the Pelangan Prospect, Raja MSB target .................................... 55
Figure 9.2: Typical cross section of the Kayu Putih target, Pelangan Prospect.............................................. 57
Figure 9.3: Photo of artisanal mining excavation areas on Bising Deposit ..................................................... 58
Figure 9.4: Drill results from the Waterfall area ............................................................................................... 59
Figure 9.5: Longitudinal section of the Bising deposit showing drill hole intersections ................................... 60
Figure 9.6: Drill results from the Tibu Serai Deposit ........................................................................................ 61
Figure 9.7: Drill results for the Selodong Prospect ........................................................................................... 62
Figure 9.8: Drill results for the Lepangan Geres target ................................................................................... 64
Figure 10.1: Statistical data for bulk density measurements ........................................................................... 69
Figure 13.1: Planveiw of Raja wireframes ....................................................................................................... 76
Figure 13.2: Planview of Bising and Tibu Serai wireframes (Note: Grid is 500 by 500 m) ............................. 77
Figure 13.3: Planview of Selodong wireframes (Note: Grid is 500 by 500 m)................................................. 78
Figure 13.4: Capping level for Bising and Tibu Serai Deposits ....................................................................... 81
Figure 13.5: Plan view of the three block model areas on the West Lombok Project (Note: Grid is 2 km
x 2 km) .............................................................................................................................................. 85
Figure 13.6: Comparison of block grades and composite grades, block model Level 58 (110 m above
sea level) (Note: Grid is 200 x 200 m) .............................................................................................. 87
Figure 13.7: Metal content of Ordinary Kriged and Inverse Distance Squared models at various grade
cut-offs .............................................................................................................................................. 88
Figure 13.8: Plan view of Bising Deposit comparing block and composite gold grades, block model
Level 25 (345 m above sea level) (Note: Grid is 200 x 200 m) ........................................................ 89
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Figure 13.9: Comparison of well-informed blocks for Bising (a) and Tibu Serai (b) ........................................ 89
Figure 13.10: Swath plot of composite and block grades for Bising ............................................................... 90
Figure 13.11: Swath plot of composite and block grades for Tibu Serai ......................................................... 90
Figure 13.12: Plan view of Selodong model comparing copper equivalent block grades and
corresponding composite grades, block model Level 22 (25 m above sea level)( Note: Grid
is 200 x 200 m) ................................................................................................................................. 91
Figure 13.13: Comparison of well-informed blocks with composite gold grades for Selodong model
(Note: Refer to Figure 13.3 for Selodong mineralised domain location) .......................................... 92
Figure 13.14: Comparison of well-informed blocks with composite copper grades for Selodong model ........ 92
Figure 13.15: Swath plots for gold grades for Selodong for domain 400 (a) and domain 401 (b) .................. 93
Figure 13.16: Swath plots for copper grades for Selodong for domain 400 (a) and domain 401 (b) .............. 94
Figure 13.17: Grade tonnage curve for the Raja Deposit, West Lombok Project ........................................... 98
Figure 13.18: Grade tonnage curve for the Bising Deposit, West Lombok Project ......................................... 99
Figure 13.19: Grade tonnage curve for the Tibu Serai Deposit, West Lombok Project .................................. 99
Figure 13.20: Grade tonnage curve for the Selodong Deposit, West Lombok Project ................................. 100
Figure 16.1: Classification of mineral resources and mineral reserves ......................................................... 103
Figure 17.1 Planview of proposed Phase 3A and 3B drilling for Raja Deposit ............................................. 106
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Page 13
Introduction and Terms of Reference
The West Lombok Property hosts an early stage gold and copper exploration project located in
Indonesia. It is located on the west side of the Island of Lombok and covers a mineralised corridor
that extends for approximately 13 kilometres (km) by 7 km. Southern Arc Minerals Inc. (Southern Arc
or the Company) through its wholly owned Singapore subsidiary Indotan Lombok Pte. Ltd. holds a
90% interest in PT. Indotan Lombok Barat Bangkit, an Indonesian approved foreign investment
company (Penanaman Modal Asing or PMA company) that holds a 100% interest in the West
Lombok Property. The remaining 10% interest is held by the West Lombok Regency Government as
a free-carry loan arrangement.
In November 2011 and in April 2013, Southern Arc commissioned SRK Consulting (Canada) Inc.
(SRK) to visit the property and prepare a geological and mineral resource model for the West
Lombok Project. The services rendered between April 2013 and June 2013 lead to the preparation of
the mineral resource statement reported herein that was disclosed publically by Southern Arc in a
news release on July 11, 2013.
This technical report documents a mineral resource statement for the West Lombok Project prepared
by SRK. It was prepared following the guidelines of the Canadian Securities Administrators‟ National
Instrument 43-101 and Form 43-101F1. The mineral resource statement reported herein was
prepared in conformity with generally accepted CIM “Estimation of Mineral Resources and Mineral
Reserves Best Practice Guidelines.”
This technical report summarises the technical information available on the West Lombok Property
and demonstrates that the West Lombok Project clearly merits additional exploration expenditures.
An exploration work program is recommended comprising diamond core drilling and geological and
mineral resource modelling to better define the identified mineral resource and to upgrade the
resource classification.
1.1
Scope of Work
The scope of work, as defined in a letter of engagement executed in November 2011 between
Southern Arc and SRK, includes the construction of a mineral resource model for the Raja, Bising
and Tibu Serai epithermal gold mineralisation and the Selodong porphyry copper gold mineralisation
and the preparation of an independent technical report in compliance with National Instrument 43101 and Form 43-101F1 guidelines. This work typically involves the assessment of the following
aspects of this project:
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
Topography, landscape, access;

Regional and local geology;

Exploration history;

Audit of exploration work carried out on the project;

Geological modelling;

Mineral resource estimation and validation;

Preparation of a mineral resource statement; and

Recommendations for additional work.
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1.2
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Work Program
The mineral resource statement reported herein is a collaborative effort between Southern Arc and
SRK personnel. The exploration database was compiled and maintained by Southern Arc, and was
audited by SRK. The geological model and outlines for the gold mineralisation were constructed by
SRK from a two-dimensional geological interpretation provided by Southern Arc. In the opinion of
SRK, the geological model is a reasonable representation of the distribution of the targeted
mineralisation at the current level of sampling. The geostatistical analysis, variography and grade
models were completed by SRK during the months of April and June, 2013. The mineral resource
statement reported herein was presented to Southern Arc in a memorandum report on July 11, 2013
and disclosed publicly in a news release dated July 11, 2013.
The mineral resource statement reported herein was prepared in conformity with generally accepted
CIM “Exploration Best Practices” and “Estimation of Mineral Resource and Mineral Reserves Best
Practices” guidelines. This technical report was prepared following the guidelines of the Canadian
Securities Administrators‟ National Instrument 43-101 and Form 43-101F1.
The technical report was assembled in SRK‟s Vancouver office during the months of May and July,
2013.
1.3
Basis of Technical Report
This report is based on information collected by SRK during site visits performed between December
6 to 9, 2011 and April 23 to 26, 2013 and on additional information provided by Southern Arc
throughout the course of SRK‟s investigations. Other information was obtained from the public
domain. SRK has no reason to doubt the reliability of the information provided by Southern Arc. This
technical report is based on the following sources of information:
1.4

Discussions with Southern Arc personnel;

Inspection of the West Lombok Project area, including outcrop and drill core;

Review of exploration data collected by Southern Arc; and

Additional information from public domain sources.
Qualifications of SRK and SRK Team
The SRK Group comprises over 1,650 professionals, offering expertise in a wide range of resource
engineering disciplines. The SRK Group‟s independence is ensured by the fact that it holds no equity
in any project and that its ownership rests solely with its staff. This fact permits SRK to provide its
clients with conflict-free and objective recommendations on crucial judgment issues. SRK has a
demonstrated track record in undertaking independent assessments of Mineral Resources and
Mineral Reserves, project evaluations and audits, technical reports and independent feasibility
evaluations to bankable standards on behalf of exploration and mining companies and financial
institutions worldwide. The SRK Group has also worked with a large number of major international
mining companies and their projects, providing mining industry consultancy service inputs.
The resource evaluation work and the compilation of this technical report were completed by Dr.
Gilles Arseneau, P. Geo (APEGBC). By virtue of his education, membership to a recognized
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Page 15
professional association and relevant work experience, Dr. Arseneau is an independent Qualified
Person as this term is defined by National Instrument 43-101.
Marek Nowak, P. Eng. (APEGBC), a Principal Geostatistician with SRK, reviewed drafts of this
technical report prior to their delivery to Southern Arc as per SRK internal quality management
procedures. Mr. Nowak did not visit the project.
1.5
Site Visit
In accordance with National Instrument 43-101 guidelines, Dr. Arseneau visited the West Lombok
project on December 6 through 9, 2011 and on April 23 to 26, 2013 accompanied by Andrew Rowe,
Executive Vice President and Chief Geologist of Southern Arc.
The purpose of the site visit was to review the digitalization of the exploration database and
validation procedures, review exploration procedures, define geological modelling procedures,
examine drill core, interview project personnel, and to collect all relevant information for the
preparation of a mineral resource model and the compilation of a technical report. During the visit,
particular attention was given to the treatment and validation of drilling data.
The site visit was also aimed at investigating the geological and structural controls on the distribution
of the gold mineralisation in order to aid the construction of three dimensional gold mineralisation
domains.
SRK was given full access to relevant data and conducted interviews of Southern Arc personnel to
obtain information on the past exploration work, and to understand procedures used to collect,
record, store and analyze historical and current exploration data.
1.6
Acknowledgement
SRK would like to acknowledge the support and collaboration provided by Southern Arc personnel
for this assignment. Their collaboration was greatly appreciated and instrumental to the success of
this project.
1.7
Declaration
SRK‟s opinion contained herein and effective July 11, 2013, is based on information collected by
SRK throughout the course of SRK‟s investigations, which in turn reflect various technical and
economic conditions at the time of writing. Given the nature of the mining business, these conditions
can change significantly over relatively short periods of time. Consequently, actual results may be
significantly more or less favourable.
This report may include technical information that requires subsequent calculations to derive subtotals, totals and weighted averages. Such calculations inherently involve a degree of rounding and
consequently introduce a margin of error. Where these occur, SRK does not consider them to be
material.
SRK is not an insider, associate or an affiliate of Southern Arc, and neither SRK nor any affiliate has
acted as advisor to Southern Arc, its subsidiaries or its affiliates in connection with this project. The
results of the technical review by SRK are not dependent on any prior agreements concerning the
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conclusions to be reached, nor are there any undisclosed understandings concerning any future
business dealings.
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Page 17
Reliance on Other Experts
SRK has not performed an independent verification of land title and tenure information as
summarised in Section 3 of this report. SRK did not verify the legality of any underlying agreement(s)
that may exist concerning the permits or other agreement(s) between third parties, but has relied on
the basis of the „Clear and Clean Certificate’. The Clear and Clean Certificate was signed and issued
rd
by the Director General of Minerals and Coal on the 23 March 2013 and proves the company and
license is in good standing with regards to the following criteria;

No overlapping claims

Valid IUP, mining / exploration business license

An approved exploration program and budget

Approval to commence feasibility study

Approval of work program by the Regency Government Environmental Agency

License payments are in order

Royalty structure is approved
A copy and translation of the certificate is provided in Appendix A. The reliance applies solely to the
legal status of the rights disclosed in Sections 3.1 and 3.2 below
SRK was informed by Southern Arc that there are no known litigations potentially affecting the West
Lombok Project.
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Page 18
Property Description and Location
The West Lombok Property covers a northwest trending structural corridor of mineralisation and
alteration hosting three main prospects: the Pelangan epithermal gold prospect, the Mencanggah
epithermal/porphyry district, and the Selodong porphyry intrusive complex. The Raja resource area
is situated within the Pelangan prospect, the Bising and Tibu Serai resource areas are within the
Mencanggah prospect and the Selodong porphyry copper-gold deposit is within the Selodong
prospect area (Figure 3.1). Exploration of the West Lombok Property is controlled under an Izin
Usaha Pertambangan (IUP) Mining Business Licence encompassing 10,088 hectares (ha). The
property boundaries were located using a differential global positional system (DGPS) instrument
along with locations of all known mineralised outcrops, historical workings such as drill collars, drill
pads, trenches and access in order to tie them into the WGS 84 co-ordinate system used by
Southern Arc.
(Source Southern Arc, 2010)
Figure 3.1: Property location map
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The property is centered at 116°00‟04” longitude and -8°48‟25” latitude, approximately 6 km
southwest of Sekotong or 30 km southwest (straight map distance) of Mataram City in Lombok, the
capital of West Nusa Tengara Province, Indonesia (Figure 3.2).
Figure 3.2: Property access and claim boundaries
3.1
Mineral Tenure
The property was initially explored under a Contract of Work application (CoW) that was granted inprinciple approval on July 21, 1998 by the Central Department of Mines and Energy. In 2011, the
CoW was converted to an IUP that encompasses 10,088 ha. The IUP, issued in January 2011, is
valid for five years. The IUP permits the company to pursue exploration activities up to the
conclusion of a feasibility study. This period may be extended with approval of the Indonesian
Government. On approval of a feasibility study, the company can automatically transition the IUP
into the exploitation stage, with the right to conduct mining production on this property for 20 years
with the potential for two further 10-year extension periods. In addition to the IUP, the Ministry of
Forestry Pinjam Pakai permit required for exploration activities within areas designated as production
forest was issued in November 2012. On the West Lombok property, 1.1% of the area is designated
protected forest (no open-pit mining), 55.1% is designated production forest (open-pit mining
allowed) and 43.8% has no forestry designation (no restriction on mining activities).
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3.2
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Underlying Agreements
Southern Arc acquired its original interest in the West Lombok property in 2005 by paying $57,100
and issuing 8,050,000 common shares to Sunda Mining Corporation (Sunda) and by paying
$126,000 and issuing 700,000 common shares to Indotan Inc. (Indotan). The Company also granted
two 0.5% net smelting royalties (NSR) to two individuals related to Sunda and a 1% NSR to Indotan
Inc. on approximately 8% of the current West Lombok Property, which excludes Block 1 described in
Figure 3.3.
This area was previously held by PT Newmont Nusa Tenggara (Newmont or PT NNT), a subsidiary
of Newmont Mining Corporation. In August 2005, Southern Arc entered into an agreement with
Newmont regarding a property (Block 1) that now forms the western portion of the West Lombok
Property and is included in the West Lombok IUP (Figure 3.3). The acquisition was completed
through a relinquishment by Newmont of the Block 1 area. The terms of the agreement include
granting Newmont a 2% NSR on any mineral production from the Block 1 area and a right of first
refusal should the company wish to introduce a new partner into any development within the area
originally covered by Block 1. The company has the right to repurchase this 2% NSR at any time for
US$1 million.
Southern Arc has given a free-carry interest for 10% of the West Lombok Project to the local
Regency Government as per a cooperation agreement signed in December 2010, ensuring
government support for the project and long-term benefits for local communities as the project
advances. Southern Arc believes that having the local Regency Government as an equity partner
creates a synergistic and mutually beneficial environment for advancement of the project. This
relationship ensures it is in the local government‟s interest to support the company‟s activities and
that local communities will receive benefits directly from Southern Arc‟s success at the project. The
Regency interest is loan-carried through to a production scenario, whereby debt and equity
contribution are paid back through dividends or other financial means.
3.3
Permits and Authorization
In order to carry out exploration and reported drilling programs Southern Arc has satisfied all
government permitting requirements which include;



IUP, (mining and exploration permit) granted for 5 years on the 5 January 2011.
Clear and Clean Certificate, indicating no overlapping claims and that all IUP associated
permitting and statutory responsibilities are in order.
UKL-UPL approval by the regency environmental department of the forward exploration plan.
Pinjam-Pakai or borrow / use permit required for work to be carried out in forest designated areas
st
granted on the 31 October 2012.
3.4
Environmental Considerations
Since receiving its West Lombok IUP in January 2011, Southern Arc has proactively engaged with
local communities to discuss its exploration and development plans and to address questions and
concerns. The company offers employment and training programs and undertakes an extensive
CSR program through its fully-funded foundation, with an emphasis on education, community health,
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environmental protection and economic empowerment of local communities. In 2012, Southern Arc
granted six micro-credit loans to local village members to support entrepreneurial initiatives.
In 2009 Southern Arc requested the University of Mataram in consultation with the biology faculty of
the University Gadjah Madah to produce a baseline study of mercury contamination caused by
artisanal gold mining and processing within the IUP. The study was completed in 2009 and
documented mercury contamination in gold processing areas and background levels in
uncontaminated areas. The findings of this report were made public and presented to the Regency
government in 2010.
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Figure 3.3: Southern Arc West Lombok mineral tenure map
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3.5
Page 23
Mining Rights in Indonesia
The following is taken with modifications from Norton Rose Fulbright website:
http://www.nortonrosefulbright.com/knowledge/publications/64444/new-indonesian-miningregulations .
On 21 February 2012, the Indonesian Government issued Regulation No. 24 of 2012 on Amendment
to Government Regulation No. 23 of 2010 on Mineral and Coal Mining Business Activities
(Regulation No. 24). Regulation No. 24 increases the divestment requirement to Indonesian interests
for Foreign Investment Companies (PMA Companies) holding an IUP, from 20% to 51%. The new
divestment requirement commences after five years of commercial production, and is as follows:

20% in the sixth year;

30% in the seventh year;

37% in the eighth year;

44% in the ninth year; and

51% in the 10th year
Regulation No.7/2012 issued by the Ministry of Energy and Mineral Resources on 6 February 2012
will prohibit the export of unprocessed raw materials or ore by IUP holders. At this point, there
appears to be confusion as to the commencement date of the prohibition, with some government
officials saying May 2012, while others have indicated 2014.
Mineral raw materials will have to be processed in Indonesia, rather than being exported in a raw
state. This regulation is intended to develop the country‟s downstream mining industry, increase
domestic revenues, and ensure availability of refined products for domestic use. Sanctions for failure
to comply include suspension of activities and/or permit revocation.
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4
Accessibility, Climate, Local Resources,
Infrastructure and Physiography
4.1
Accessibility
Page 24
The property area can be reached by road, approximately two hours‟ drive by vehicle from the
provincial capital Mataram. Domestic airlines provide a daily service to Mataram (1,100 km east of
Jakarta) either direct from Jakarta or transiting via Surabaya, or Denpasar. Alternatively, regular
daily sea ferries connect Lombok and its island neighbors of Bali and Sumbawa. Within the prospect
access is limited to a series of unpaved roads and foot-tracks that network across the area.
4.2
Local Resources and Infrastructure
Local infrastructure was sufficient to meet the majority of the company‟s logistical requirements
during the duration of the exploration program. Supplies or required services were sourced from the
administrative center of Mataram. There seems to be adequate supply of unskilled labour in the
immediate area of the property. Skilled labour for mining could be sourced from Indonesia and by
training the local population.
4.3
Climate
The area has a typical tropical wet climate and is subject to the seasonal influence of the northwest
monsoon from November to March, and drier southeast trade winds from June to September.
Rainfall in the mountain ranges to the north is between 1725-3500 mm per year and decreases
significantly to the coast with values of 1110 to 1850 mm per year being recorded. Daily
temperatures range from 26 to 31°C, which reduce to a low of 22 to 24°C overnight. Relative
humidity is also uniformly high, ranging from 80 to 100%.
4.4
Physiography
The prospect area comprises semi rugged terrain with incised valleys trending predominantly north
to northeast and northwest, reflecting the regional structural control. Elevations rarely exceed 350 m
reflecting the long period of uplift and erosion of the Miocene aged volcanic sequence (Figure 4.1).
As a result of population density and logging in the 1990s, the majority of hill slopes are denuded of
forestry and have been planted with cash crops such as rice and maize, along with lesser sweet
potato and bean crops. Two Community Forest (HTR) areas of 1,495 ha have been granted by the
Regency government within the forestry „pinjam pakai‟ permit area (refer to Figure 3.2). Southern Arc
would require permit holder approval prior to any drilling in these areas.
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Figure 4.1: Typical landscape in the project area
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History
PT. Aneka Tambang, in conjunction with CV. Tanone Jaya, evaluated the area in 1978 but only base
metal mineralisation of limited economic potential was identified.
Following the withdrawal of Aneka Tambang, the area was incorporated by a local village
cooperative into three KP (mining license) areas DU.59-61 comprising 6,000 ha. Technical
assistance was requested from the Technical Directorate of the central Mines Department. Between
1981 and 1984 the Technical Directorate undertook ground geophysical (magnetics, IP/resistivity),
surface geochemical and geological surveys and a limited shallow diamond drilling program in the
KP areas. Surface sampling returned assay values including 3.2g/t Au, 430g/t Ag, 2.2% Cu, 15.23%
Pb and 30.9% Zn, whilst drilling encountered only narrow sub economic intersections (Rontek,
1985).
th
The entire SIPP area once formed part of the original 4 generation CoW area held by PT. Newmont
Nusa Tenggara‟s (PT NNT). PT NNT carried out an extensive stream sediment sampling program
that was followed up with a Bulk Leach Extractable Gold (BLEG) sampling program. The
geochemical sampling programs were followed up with ground magnetic and geological mapping
surveys which highlighted several porphyry targets in the Selodong area. Drilling by PT NNT
commenced in 1996 with 52 drill holes totalling 7,956 m. PT NNT abandoned the property in 1996 to
focus its efforts on the Batu Hajau deposit.
Southern Arc acquired the property in 2005 and initiated exploration on the property in 2006.
Exploration activity to date has included extensive geological and geochemistry mapping to establish
the presence of epithermal mineralisation and surface alteration, the collection of more than 4,500
surface channel samples across the property and 47,750 m of drilling at all three prospects.
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Geological Setting and Mineralisation
The island of Lombok is located in the central part of the tectonically active, east-west trending
Sunda-Banda magmatic arc that marks the convergence of three major tectonic plates (Hamilton
1979).
The geology of the West Lombok Property is characterized by an island-arc volcano-sedimentary
succession of Late-Oligocene to Quaternary age. A series of eroded, overlapping predominantly
andesitic volcanic centers and intermediate intrusive rocks make up the Tertiary arc. Intrusive rocks
include diorite, dacite, diatreme breccia and tonalite, the latter related to porphyry mineralisation at
Newmont‟s Batu Hijau mine and Elang deposit on the neighboring island of Sumbawa.
6.1
Regional Geology
The island of Lombok is located in the central part of the tectonically active, east-west trending
Sunda-Banda magmatic arc that marks the convergence of three major tectonic plates (Hamilton
1979).
The southern parts of Lombok Island are overlain by Late Oligocene to Middle Miocene, low
potassium calc-alkaline to weakly alkaline andesitic volcanic and interbedded volcaniclastic rocks,
associated low potassium intermediate intrusions and shallow marine sedimentary rocks and
limestone (Garwin, 2002). Overlying dacitic rocks are locally mapped in the region and mainly
occupy higher topography. The youngest rocks in the region are products of Recent and Quaternary
volcanism and are generally located in the north of the island, and have not been a focus of
exploration because of the limited exposure of the hydrothermal systems by erosion (Figure 6.1).
A series of eroded overlapping volcanic centres with associated fringing sediments make up the
Tertiary arc, and are represented by a thick pile of andesitic pyroclastics, flows, intermediate
intrusives, shallow marine sediments and limestones. The sequence is exposed over the south of
Lombok, with elevations up to 500 m. Tertiary rocks are also evident in the north of Lombok where
they are thought to form the basement rocks to more recent volcanism. Intrusive rocks are
commonly exposed in an east-west belt in southern Lombok. Older intrusives are commonly diorites
and microdiorites and occur as dykes and stocks intruding the volcanics and sediments. Later
tonalite intrusions are spatially and temporally related to the main porphyry Cu-Au mineralisation,
whereas older dioritic intrusions and stocks are related to earlier similar mineralisation types but
commonly lower grades (0.2% to 0.4% Cu). Diatreme dome breccia complexes have been mapped
peripheral to dacite porphyry intrusives. Dacitic pyroclastic rocks unconformably overly the andesitic
sequence. A thick blanket of volcaniclastic rocks (debris flow sequence) are locally preserved in
areas of structural complexity.
Based on a north-south compressive regime since the Late Miocene, regional structures comprise
north-south extensional faults, east-west trending reverse or thrust faults and folds, and a conjugate
strike-slip fault set with north-north westerly and north-north easterly trends. This structural regime is
thought to have arisen through counter-clockwise rotation of the regional maximum horizontal stress,
between the Middle Miocene and Pliocene, resulting in reactivation of a sinistral strike-slip
movement along the north-northeast trending structural zones. This regime of sinistral wrenching in
turn would have led, in blocks affected by this deformation, to the development of north-northwest
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trending tensional faults/fractures, east-northeast trending reverse or thrust faults and secondary
conjugate strike-slip fault systems (Pieters, 2004).
(Source Campbell, 2010)
Figure 6.1: Regional geology setting
6.2
Property Geology
The IUP area covers the majority of prospective Oligo-Miocene andesitic volcano-sedimentary
succession and sub-volcanic intrusive rocks located in an east-west belt across the southern part of
Lombok. Mapping by Southern Arc has located a series of epithermal and porphyry style targets
along this belt.
Based on historical and geological mapping by Southern Arc (Campbell, 2010), the stratigraphic
units encountered on the property can be described as follows. The Pangulung Formation (Tomp) is
the oldest rock unit exposed in the study area. It was previously termed the “Old Andesite Formation”
by Van Bemmelen, 1949. The Formation comprises breccia, lava and tuff with limestone lenses
which are host to sulphide mineralisation. Inter-fingered with the Formation are alternating quartz
sandstone, claystone and breccia lithologies of the Kawangan Formation (Tomk). Previous authors
assume that these lithologies were formed on the flanks or proximal to the Oligo-Miocene volcanic
arc chain. Mid Miocene intrusions (Tmi), the source of hydrothermal alteration and mineralisation,
include porphyritic andesite, hornblende diorite, quartz diorite, feldspar porphyry, tonalite and
intrusive diatreme breccia in the appropriate chronological order (Clode and Pratama, 2002). Outliers
of late Miocene limestone and arenite (Ekas Formation – Tme) are found as capping topographical
highs, or in coastal areas along the western and eastern license boundaries. Plio-Pleistocene
alternating calcareous breccia and lava of the Kalipalung Formation (TQp) predominate in the
northern margins of the IUP. Holocene sedimentation (Qa) has resulted in the deposition of alluvial,
littoral and coral reef deposits on coastal and lowland plains. Fanglomerate outwash plains and
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localised gravity flow deposits are noted along river terraces and coastal areas. Figure 6.2 shows an
idealised stratigraphic column of Southwest Lombok Island.
Figure 6.2: Idealized stratigraphic column of Southwest Lombok Island
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Andesitic Volcanics (Tomp)
These early Oligocene-late Miocene lithologies are encountered over most of South Lombok, and
form a thick “basement” pile of ash to lapilli sized pyroclastics, lava flows and debris flows to fluidized
breccias of andesitic composition. These lithologies often exhibit weak lower greenschist facies
metamorphism, together with intercalated meta-volcanics/sediments, hornfels and garnetmagnetite±biotite skarns.
Volcanic Sediments (Tomk)
These sediments consist of bedded shallow marine tuffaceous sandstone, siltstone, polymictic lithic
breccias and epiclastic tuffs. Minor intercalations of carbonates occur locally. Miocene-aged
Foraminifera have been described from the tuffaceous sediments, suggesting a possible Miocene
back-arc basin environment. Both volcanic and metavolcanic equivalents often inter-finger with
Tomp lithologies.
Diorite Porphyry Intrusives (Tmi)
These occur as north to north-northwest and east to northeast structurally controlled stocks which
intrude the Tertiary basement. The diorites consist of fine to medium grained (up to 3mm)
plagioclase and hornblende phenocrysts in a finer grained matrix. This unit is the main host to the
main porphyry Cu-Au mineralisation within the Selodong Intrusive Complex.
Feldspar Porphyry Intrusives (Tmi)
These occur as north to north-northwest and east to northeast structurally controlled stocks and
dykes (5-30 m width) which intrude the Tertiary basement. This lithology consists of coarse grained
zoned feldspar phenocrysts (up to 7mm) and minor hornblende and quartz phenocrysts in a finer
grained groundmass.
Plagioclase-Hornblende Andesite Intrusive (Tmi)
Mapped as both stock and dyke intrusive bodies that outline N to NNW and ENE structural elements.
Phyric textured with plagioclase and hornblende phenocrysts (up to 3mm) in a finer grained
groundmass.
Quartz Diorite Porphyry Intrusives (Tmi)
North to northwest structurally controlled stocks, which cross-cut earlier intrusive phases and
Tertiary basement. Intrusives consist of coarse to fine grained (up to 5mm) hornblende, plagioclase
and quartz phenocrysts in a finer grained matrix.
Magmatic Intrusive Breccia (Tmi)
Surrounds remnants of stockwork Cu-Au porphyries at Montong Botek and Lapangan Geres,
coinciding with circular features as defined by remote sensing studies. Monomictic to polymictic
clast-supported to locally milled and fluidized breccias with clasts (Tomp, Tomk and Tmi) from
centimetres to tens of metres in size, in a matrix of crystalline igneous material.
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Hornblende Diorite Porphyry Intrusives (Tmi)
These occur as dykes and small stocks (1-100 m thickness) within the Oligo-Miocene volcanics and
associated sediments. They consist of medium and coarse grained (up to 5mm) hornblende and
plagioclase phenocrysts in a finer grained groundmass.
Dacite Porphyry Intrusives (Tmi)
These occur as dyke, plugs and sill like bodies intruding the Tertiary volcano-sedimentary pile. They
consist of medium to coarse grained (up to 5 mm) plagioclase, quartz and mafic phenocrysts in a
finer grained groundmass.
Dacite Volcanics (Tmv)
This sequence consists of ash to lapilli sized pyroclastics and occasional interbedded dacitic/rhyolitic
lavas. Exposures are limited to isolated outliers, capping higher topographic relief, where they
unconformably overlie andesitic volcanics and dioritic intrusives or limestone.
Epiclastic Breccia
This sequence of bedded and massive debris flow exhibit inverse graded bases. The dominant
clastics are andesitic and basaltic lavas, diorite and rare dacite. This unit primarily occurs as isolated
outcrops along the southern coast of Lombok Island.
Tertiary Limestone (Tme)
This generally massive bedded limestone may contain coralline coral fragments, calcareous
volcaniclastic sandstone intercalations and occasional chert and silicified horizons. It generally
occurs unconformably on, or as lenses within, the andesitic volcanic rocks.
Quaternary Deposits (Qa)
This unit consists of unconsolidated gravels, sand, silt, mud, air fall volcanic ash and organic
elements. Alluvium includes river sediments, estuarine deposits in the various bays and estuaries
with tidal flats, sand beaches and mangrove swamps.
6.3
Mineralisation
Mineralisation on the property has been separated into three main prospect areas, from North to
South, the Pelangan, the Mencanggah and the Selodong Prospects. Each prospect consists of
several mineral targets or deposits, many of which have been the subject of exploration by diamond
drilling.
6.3.1 Pelangan Prospect
The Pelangan Prospect covers an area approximately 4 x 5 km in the northwest part of the property
(Figure 6.3). The prospect comprises four main epithermal gold targets including Tanjung-Jati, Kayu
Putih, Raja and Lala. Southern Arc has completed 13,233 m of drilling in 99 holes on the Pelangan
Prospect. Phase 1 drilling was completed in 2007, together with semi-detailed geological mapping
and outcrop channel sampling of sub-parallel vein structures. Phase 2 drilling began in 2010 and
was focused on identifying and defining high-grade shoots within large continuous structures. Drilling
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showed that mineralised breccia bodies ranged in true width between 3 m and 20 m. Phase 2 drilling
confirmed high-grade events typical of epithermal boiling zones at both the Central Raja and
Tanjung Lode structures and identified three high-grade shoots.
6.3.2 Mencanggah Prospect
The Mencanggah Prospect comprises a large cluster of west-northwest to north-trending, goldbearing epithermal mineralised structural breccias concentrated in a 6.5 x 4.5 km area in the centre
of the property, with the potential to host copper-gold porphyry mineralisation at depth. Channel
sampling indicates that these breccia bodies range in true width between 3 m and 66 m. The Bising,
Tibu Serai and Waterfall targets have been drill tested and show encouraging results. Surface
channel samples at the Tibu Serai target have returned the highest-grade mineralisation on the
property to date. Southern Arc has completed 14,380 m of drilling in 69 holes on the Mencanggah
Prospect. Drilling has demonstrated that gold mineralisation is associated with quartz veining
associated with wider mineralised structural breccia zones.
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Figure 6.3: Location of mineral prospects
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6.3.3 Selodong Prospect
The Selodong Prospect is situated in the southern part of the West Lombok Property. Drilling in the
Selodong porphyry copper-gold target was first carried out by Newmont in 2005 when they drilled a
total of 52 holes targeting porphyry copper mineralisation. Southern Arc added an additional 33
holes in the Selodong area between September of 2008 and October 2012 for 20,046 m. These
holes tested seven of the 14 porphyry copper-gold targets, with the majority intersecting broad zones
(126.45 m to 855.11 m) of significant copper-gold mineralisation. Drilling identified copper gold
porphyry style mineralisation associated with altered diorite intrusions. Typical porphyry alteration
assemblages are generally zoned outward from higher grade mineralised cores, though these
assemblages are often obscured by variations of incipient-weak through to intense postmineralisation overprinting and post-mineral brecciation. Secondary biotite was identified in core
logging and has been confirmed by petrological studies along with the presence of K feldspar.
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Deposit Types
There are at least two different deposit types present on the West Lombok Property; porphyry
copper-gold and epithermal gold mineralisation have been identified thus far.
7.1.1
Porphyry style mineralisation
Porphyry mineralisation was discovered at Selodong in 1992 by PT NNT. Surface mapping and
sampling defined several areas of anomalous Cu-Au mineralisation.
Copper-gold mineralisation is associated with late Miocene diorite intrusive rocks emplaced into Late
Oligocene to Middle Miocene low-K calc-alkaline to alkaline andesitic volcanic and subvolcanic
intermediate intrusive rocks. The two main types of mineralisation found in the property include
diorite hosted porphyry Cu-Au and related high to intermediate-sulphidation epithermal Au-Ag
mineralisation hosted in mineralised structural breccias. Mineralisation is almost exclusively
associated with quartz-sulphide stockwork veining and adjacent sulphide disseminations in the
potassic altered diorite. Two phases of diorite have been identified hosting stockwork mineralisation
with an earlier, more intensely altered, mineralised and veined quartz diorite.
Hypogene minerals include pyrite, magnetite and chalcopyrite along with minor bornite, chalcocite,
and sphalerite. Secondary minerals include malachite, azurite and chrysocolla, limonite, hematite,
and jarosite. Chalcopyrite is the dominant copper sulphide species, with bornite occurrences
generally more localised with notable zones of higher concentrations. No significant increases in
concentrations of bornite were noted with depth or along strike based on the current density of
drilling. Pyrite and magnetite are the most common minerals, with pyrite becoming more common
outwards from higher grade mineralisation. Magnetite is abundant throughout the mineralised
system and is associated with the potassic assemblage and porphyry mineralisation.
7.1.2 Epithermal gold mineralisation
The term “mineralised structural breccia” (“MSB”) has been applied by Southern Arc to describe
steeply-dipping, tabular silica-rich bodies that are associated with advanced-argillic alteration of the
adjacent host-rocks at the Pelangan and Mencanggah prospects (Figure 6.3). The silica bodies
range in thickness from a few meters up to 30 m and extend more than 1000 m along strike at
Pelangan and are up to 100 m wide and form zones more than 1000 m long at Mencanggah.
The down-dip extent of the bodies exceeds 300 m, as indicated by the surface trace of the bodies
and drill results at Pelangan. The silica bodies contain variable amounts of fine-grained massive
quartz, dickite, alunite, diaspore, pyrophyllite and pyrite/marcasite (converted to goethite and
hematite near-surface) and display breccia textures locally. Minor amounts of enargite and covellite
also occur in the silica-pyrite matrix (Allen, 1990). Gangue minerals include quartz chalcedony and
clay minerals.
Drill results show that these quartz veins form zones that are typically 5 - 20 m wide and contain
significant Au and Ag and anomalous As, Bi, Cu, Pb, Sb and Te; particularly where the quartz veins
are associated with fine-grained sulphide bands.
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Exploration
Following the incorporation of the ex-Newmont Block I in December 2005, Southern Arc received a
substantial geological database (including half drill core) generated from exploration activities
conducted in the Pelangan-Mencanggah-Selodong area during 1987-96.
8.1
Pelangan Prospect
A preliminary reconnaissance exploration program in the area was undertaken by Southern Arc in
November-December 2003. Field activities focused mainly on channel and rock chip sampling of
potentially mineralised outcrop exposures, but where outcrops were not exposed, samples of talus
scree were collected. A number of rock chip (RC) and rock float/talus scree (RF) samples were
collected along the eastern margin of the Pelangan epithermal system. Evidence of both low and
high sulphidation epithermal mineralisation was defined, with vein measurements analogous to the
Pelangan north-northwest trends. Low to moderate geochemistry was reported with values including
RC: 0.10-0.45 g/t Au, 1-17 Ag, and 0.06-0.28% As, while RF equivalents reported values of 0.031.10 g/t Au, 1-65 g/t Ag, 3-160 g/t Sb and 6-227 g/t Mo, respectively.
A total of 210 BLEG, 210 stream sediments, 6 rock chips and 14 rock float samples (including
duplicates and check samples) were collected in the Pelangan-Mencanggah area and submitted for
analysis.
Ground traverses were conducted using tape and compass surveys tied into previously established
base lines along major ridge lines, along with global positional system (GPS) units for ground
control. Later detailed surface evaluation programs involved the usage of DGPS for mapping and
infill sampling along the MSBs. Mapping of lithologies and alteration facies follow the common
conventions of hydrothermal system definitions and nomenclature adopted by most workers
worldwide, and was further supplemented by the collection of petrological samples dispatched to
SKM - New Zealand. Rock chip and channel samples were collected on a routine basis during
preliminary stream and ridge traverses. A large variety of host rocks were also assayed in order to
determine the possibility of any bulk-tonnage potential, as well as to gain a geochemical signature of
the prospect as a whole.
Where previous Newmont rock channel cuts were identified, duplicate sections were collected.
Results from this duplication work provided good correlation with that of previous Newmont sampling
and thus both data sets were subsequently combined. In all, a total of 4,101 channel (CH) and chipchannel samples (RC), together with 147 float samples (RF) collected from mineralised and altered
rock exposures/talus throughout the property (including duplicates and check samples) were
submitted for analysis.
In order to define the linear signature as well as establish some depth potential of resistive (silica
tabular bodies) zones, the company conducted a ground controlled Source Audio frequency
Magnetotelluric (CSAMT) survey over parts of the Kayu Putih, Tanjung and Raja targets in 2006.
Three survey grids at 50 m line spacings were established at differing orientations (090°, 315° and
335°) over the Kayu Putih, Tanjung, Raja-Ratu and Lala target areas. Survey recording stations
were established at 18 m horizontal intervals. The CSAMT survey was undertaken by geophysical
contractor PT. Elliot Geophysics and commenced mid-August 2006. Electrical and mechanical
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problems combined with heavy seasonal thunderstorms plagued the survey, which was abandoned
in the third week of December with 40 lines totaling 24.3 km completed.
In general, near surface resistors correlate reasonably well with mapped MSB bodies; however, with
depth resistors tend to migrate northwards and westward and are most likely associated with
andesite and diorite intrusions (Figure 8.1). The more northerly northwest trending MSB are
indicated as resistors on the shallower plan sections, although they seem to die out to the east.
Aeromagnetic data confirms a northwest to southeast direction, but very likely responses are due to
andesite intrusions. The more southerly east-west striking MSB zone has good correlation in the
upper elevations; whilst further to the southwest strong resistors are noted, although no MSBs have
previously been mapped.
Results from BLEG geochemistry (Figure 8.2) confirmed the presence of elevated Au-Ag anomalies
throughout the Pelangan-Mencanggah Prospect areas. Priority 1 targets (>15ppb Au ± >75ppb Ag)
were identified from known MSB bodies Kayu Putih, Ratu, Raja, Lala, Simba, Gawah Bongor, Tibu
Serai & Waterfall/Mahoni. Priority 2 targets (3-15ppb Au ± 40-75ppb Ag) were attributed to
mineralised subsidiary structures as is the case at Mendorot (Lala East and recently defined
porphyry mineralisation), Simba West (Batu Putih porphyry trend), whilst others in the eastern parts
of the prospect area are along strike of the Blongas-Lapangan Geres porphyry corridor, reflecting the
combination of porphyry Cu-Au and later overprinting MSB styles of mineralisation. Low level BLEG
copper values (15-34 ppm) highlight porphyry mineralisation from the Blongas-Lapangan Geres
porphyry corridor and possibly the Mendorot-Gawah Bongor area. Stream sediment gold
geochemistry, in general, mimicked that of corresponding BLEG anomalies.
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Figure 8.1: Results of the CSAMT survey in the Pelangan Prospect
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Figure 8.2: Results of BLEG sampling program in Pelangan-Mencanggah Prospect areas
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2
Geological mapping and sampling at Pelangan and Mencanggah has covered an area of 35 km .
Detailed mapping using tape and compass (Pelangan) and DGPS (Mencanggah) was carried out
along creeks, ridgelines, and foot trails throughout the prospects, with the DGPS simultaneously
recording elevation for contour maps. Factual and interpretative geology, sample location and assay
maps were produced at 1:50,000, 1:10,000 and 1:5000 scales.
The company‟s work identified extensions to the known MSB targets and defined new targets
including Lala, Tibu Serai, Telekur, Talat Talat, and the Gunayang-Mahoni trend. Due to thick
secondary re-growth after logging, all drainages were systematically opened and outcrops cleaned
to gain better exposure of alteration, lithology, structure and any stockwork densities.
Surface mapping and later shallow scout drilling at Pelangan have defined extensive, structurally
controlled, epithermal gold-bearing breccia zones, occurring over an area of 3 x 2 km. Five major
zones (Raja, Kayu Putih, Tanjung-Jati, Lala and Ratu) comprising an aggregate strike length of
approximately 4.6 km have been defined. Channel sampling in conjunction with continuous rock chip
sampling (1-5 m widths) was used extensively to complement geologic mapping to establish priority
drill-test targets. The amount of costeaning was limited due to time constraints and negative
environmental impact on local cash cropping areas.
Raja: The Raja MSB comprises a 1.7 km long north-northwest trending mineralised, linear breccia
zone which has been subdivided into north, central and southern zones (Figure 8.3). The northnorthwest trend of Raja is a secondary structure related to the dominant 320° orientation which hosts
numerous mineralised breccias and porphyry occurrences within the property. At surface the Raja
MSB exhibits a „pinch and swell‟ character with zones up to 20 m wide.
North Raja: Outcrop samples (n=13) averaged 1.31 g/t Au and 22.7 g/t Ag, with maximums of
6.02 g/t Au and 98.0 g/t Ag. Limited trenching returned significant intercepts of 4.0 m @ 2.34 g/t Au
and 14.3 g/t Au (including 1.0 m @ 5.60 g/t Au and 29 g/t Ag) and 5.0 m @ 1.99 Au and 12.5 g/t Ag.
Central Raja: Systematic outcrop sampling (n=125) of prominent bluffs on the north side of the main
river averaged 2.17 g/t Au and 16.4 g/t Ag, with values ranging from <0.005 to 23.77 g/t Au and 1170 g/t Ag. In higher elevated areas to the south (South Raja) gold and silver values (n=38) declined
to an average of 0.84 g/t Au and 11.9 g/t Ag, with values to a peak of 6.17 g/t Au and 79 g/t Ag.
Ratu: Encouraging results were received from sub-outcrop samples (n=70, ranging from <0.005 to
34.1 g/t Au and <1 to 16.4 g/t Ag). Narrow mineralised drill intercepts suggest that Au-Ag
mineralisation is related to “horse-tail” splay structures developed between the Raja and Tanjung
MSBs.
Lala: First-pass mapping has been completed over the Lala MSB which parallels the Raja MSB
350 m to the east. Mapping has defined a series of mineralised structures oriented between northnorthwest and east-west over a 1.6 km strike length. Mineralised exposures comprise outcrops up to
15 m in width in the southern zone but generally are limited to discontinuous sub-crops to the central
and northern zones. Assay results from 314 rock-chip samples collected show consistently elevated
grades along the length of the structure, with an average grade of 1.29 g/t Au, 16 g/t Ag and 34 g/t
Mo. Variation in assay values range from 0.01-55.0 g/t Au, 1-178 g/t Ag and 4-365 g/t Mo.
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Figure 8.3: Surface sampling results for the Raja Deposit, Pelangan Prospect
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The Lala structure intersects a large diorite intrusive at the southern end where corresponding Mo +
Cu values are elevated (Batu Seni). This is of significance to exploration as potasically altered diorite
has been cored at South Raja and intense CSAMT anomalies occur between the southern parts of
the Lala and Raja MSBs.
Tanjung-Jati: The Tanjung-Jati MSB comprises a 1.5 km long northwest trending structure divided by
a central split/jog to form Jati to the west and Tanjung to the east. The northwest trend of TanjungJati parallels the dominant regional 320° orientation (Figure 8.4). Individual breccia zones exhibit a
„pinch and swell‟ character with zones up to 20 m wide. Outcrop sampling was somewhat
intermittent, due to discontinuous rock exposures and subdued topography in places. The 71
samples collected ranged from 0.01-31.1 g/t Au and 1-184 g/t Ag, averaging 1.93 g/t Au and 8.3 g/t
Ag.
Kayu Putih: The Kayu Putih MSB comprises two intersecting mineralised structures with east-west
and northwest trends, over an area of 800 by 400 m (Figure 8.5). The east-west oriented structure is
inferred to be hosted within „en-echelon ramp-structures‟, which can be associated with high-grade
mineralisation. Results of outcrop sampling (n=188) highlight the higher grade potential of the
eastern half of the east-west MSB structure and the southeast end of the 320° trending structure.
Average grades within these areas (n=122) are 10.36 g/t Au and 10.5 g/t Ag, with values ranging
from 0.03-303 g/t Au and 1-98 g/t Ag. Channel samples collected in the vicinity of visible gold
identified in outcrop exposures returned intercepts of 6.8 m @ 22.43 g/t Au, 0.9 m @ 34.6 g/t Au and
2.7 m @ 7.1 g/t Au and 21 g/t Ag. Higher grade zones coincide with cross-cutting gold-silver telluride
bearing quartz veins with localised hydrothermal brecciation that overprint earlier structurallycontrolled “silica ledges”. Outside of the higher grade zones, veining is sporadic and thus assay
values (n=66) decline to an average of 0.62 g/t Au and 10.3 g/t Ag.
Simba: The Simba vein system is traceable along strike for 1.6 km striking between north and
northwest and dipping between 60° to 75° southwest. Vein outcrops are typically “pinch and swell”
and vary between 1 and 30 m wide with individual lenses between 30 to 150 m long. Vein swells
appear to be associated with north-south structural intersections and vein junctions. Vein zones are
characterized by irregular breccias with locally developed banding of fine to medium-grained
saccharoidal quartz, drusy cavities, and localised vuggy textures. Strong silicification is developed
peripheral to veins for up to several meters within the host rock. Thirty one continuous rock chip
samples were collected along outcrops and residual PT NNT trenches, but results from these largely
failed to replicate grades seen in PT NNT trench samples (Figure 8.6).
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Figure 8.4: Surface sampling results for the Jati and Tanjung targets, Pelangan Prospect
Figure 8.5: Surface sampling results for the Kayu Putih target, Pelangan Prospect
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Figure 8.6: Surface sampling results for the Simba target, Pelangan Prospect
8.2
Mencanggah Prospect
Channel sampling was used extensively at Mencanggah to complement geologic mapping and
establish prioritized MSB targets. A total of 1,191 rock chips and channel samples were collected
during mapping. Sample assay results are outlined in Figure 8.7.
Channel samples were collected using a combination of hammer and chisel and portable rock saw.
Channel sampling intervals along strike of the MSBs range from 25 to 100 m. Channel sample
widths generally range from 1 to 5 m depending on exposure and down to a minimum of 10 cm for
individual vein character samples.
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(Source Rowe, 2008)
Figure 8.7: Surface rock samples collected from the Mencanggah Prospect
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The Bising target forms a prominent hill in the western part of the prospect comprising a westnorthwest trending MSB body approximately 700 m long by up to 100 m at the widest point
(Figure 8.8). Historical sampling by PT NNT indicated the significance of the structure with results
including 228.0 g/t Au from a 2.0 m channel sample. Southern Arc sampling along the Bising
structure confirmed the localised high-grades at surface with results including:

2.0 m @ 38.96 g/t Au

2.0 m @ 17.45 g/t Au

66.0 m @ 1.09 g/t Au (incl. 3.0 m @ 8.6 g/t Au)

5.0 m @ 5.52 g/t Au
The 365 channel samples collected at Bising returned an average grade of 1.17 g/t Au with a peak
result from a 1.0 m channel of 71 g/t Au. Silver values are generally subdued with an average result
of 1.55 g/t Ag and peak of 22.0 g/t Ag.
The Tibu Serai target occurring in the northern section of the prospect covers a broad 1,300 by
600 m area comprising more than 12 individual MSBs, (TS1 to TS12) (Figure 8.9). Individual MSBs
strike northwest to north-northwest with maximum length of 1,000 m and width up to 20 m. Southern
Arc surface sampling confirmed localised zones of high-grade mineralisation at Tibu Serai including
the following highlights:

TS3: 2.5 m @ 6.12 g/t Au

TS3: 7.1 m @ 53.53 g/t Au

TS6: 3.0 m @ 2.52 g/t Au

TS9: 2.0 m @ 3.59 g/t Au

TS9: 1.1 m @ 12.0 g/t Au
From the 417 channel samples collected at Tibu Serai the average gold grade is 1.79 g/t Au with a
peak value of 116.0 g/t Au. Silver is again subdued with an average grade of 1.3 g/t Ag with a peak
value of 21.0 g/t Ag.
The Waterfall target occurs in the southwest of the prospect area forming a 750 m long northwest
trending sigmoidal-loop structure, in places up to 40 m wide (Figure 8.9). Though relatively lower
gold grades have been encountered at this target, quartz vein textures and the inferred presence of
adularia are indicative of high levels of exposure. The potential therefore exists for an epithermal
system with potentially un-exposed higher grade zones in close proximity. SA sampling has
confirmed consistent lower grade anomalism along the structure with results including:

8.0 m @1.42 g/t Au

2.0 m @ 1.41 g/t Au
One hundred and eighty seven channel samples collected at Waterfall returned an average grade of
0.35 g/t Au with a peak assay of 2.89 g/t Au. Silver grades are low with an average result of 4 g/t Ag
and a peak value of 42.0 g/t Ag.
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Character sampling at Mencanggah suggested at least two mineralizing events that contributed
metal deposition in the prospect areas. Gold assay values from silica pyrite advanced-argillic altered
volcanic ranges from 0.05 g/t Au to 0.50 g/t Au, whereas later banded quartz veining and
hydrothermal breccias formed by what appears to be the same generation of quartz range from
0.1 g/t Au to 250.0 g/t Au.
(Source Rowe, 2008)
Figure 8.8: Surface samples from the Bising and Tibu Serai deposits, Mencanggah Prospect
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(Source Rowe, 2008)
Figure 8.9: Surface sampling for the Waterfall target, Mencanggah Prospect
8.3
Selodong Prospect
Evaluation of the PT NNT database along with the available drill core resulted in the definition of
fifteen priority targets which included the previously drill tested targets of Montong Botek, Blongas I
and II, Belikat and Kekalik (Figure 8.10). The other ten targets were ranked based on follow up
detailed DGPS mapping and sampling. The Kedaro and Lepangan Geres targets were subsequently
drill tested. Along with surface mapping and sampling to enhance and verify the existing data set,
Southern Arc undertook 3D modelling of the Newmont ground magnetic data by GRS - Australia and
selected petrographic analysis of drill core from Montong Botek and Blongas II by SKM - New
Zealand.
Previous PT NNT data were verified in the field where possible through duplication of geochemical
samples, ground truthing of geological traverses and drill collars. All PT NNT drill collars were relocated and DGPS surveyed to UTM-WGS84 as the earlier PT NNT work programs were based on a
local grid. Based on this rectification, all PT NNT data sets were converted to UTM.
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(Source Rowe, 2008)
Figure 8.10: Surface sampling for the Selodong Prospect
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Ground traverses were conducted between June 2007 and May 2008 within the 7 x 3 km area of the
Selodong Prospect area. Detailed mapping using DGPS carried out along creeks, ridgelines, and
foot trails throughout the Selodong Intrusive Complex (SIC) simultaneously recorded elevation to
produce digital elevation and geological maps at 1:5000 scale. The distribution of lithological units
and alteration facies generally agreed with Newmont‟s original mapping. Apart from the well-exposed
mineralised quartz diorite outcrops at Montong Botek and along one of the creeks at Blongas II,
porphyry mineralisation in general is very poorly exposed at Selodong due to weathering
characteristics and the labile nature of highly altered porphyry mineralisation. Due to thick secondary
re-growth after logging, all drainages were systematically opened and outcrops cleaned to gain
better exposure of alteration, lithology, structure and any stockwork / fracture densities. Mapping
identified mineralisation and alteration types, defined the approximate limits of post-mineral
brecciation around Montong Botek and Kekalik and the dimensions of post-mineral hornblend diorite
dikes and elucidated some of the major structure controls on mineral and post-mineral events.
Southern Arc ground traverses further developed the significance of the Kedaro target to drilling.
Deposits of porphyry mineralisation were extended a further 7 km northwards, along the Montong
Botek porphyry trend, to Lepangan Geres and Gawa Bongor; another new porphyry style
mineralised area located a further 7.6 km to the north. Detailed mapping has identified the main
controls of porphyry mineralisation at Selodong and shown key porphyry hosting structures
extending outside of Selodong the north and northwest.
Porphyry mineralisation is generally not well exposed due to the labile nature of alteration mineral
assemblages and therefore anomalous samples give a positive sign of mineralisation rather than an
indicative grade. It should also be considered that Lepangan Geres has proportionately more
sampling as this was a new discovery and had not been sampled by the previous operator. Targets
such as Blongas II and Montong Botek have not been as heavily sampled because of previous
surface work and drilling by PT NNT.
A total of 1,082 surface outcrop rock chip and channel samples were collected and analysed for
gold, copper and molybdenum. Normal tropical weathering conditions have resulted in oxidation of
copper sulphides to shallow levels (generally 5 to 20 m below surface), resulting in subdued surface
copper-geochemistry. Gold is intimately associated with copper mineralisation and, being relatively
less mobile at surface, is a better indicator of mineralisation in this instance. At concentrations > 0.15
g/t Au and in the presence of quartz-stockwork and well developed fracturing, gold was considered a
good indicator at Selodong for porphyry mineralisation. Accordingly, a 0.1 g/t Au cut-off has been
applied for the following summary of rock-channel statistics.
Montong Botek: Mineralised stockwork is discontinuously exposed along a 350 x 250 m north-south
elongate zone with the main high grade pod of mineralisation located at the southern end. Forty five
out of 68 5 m channel samples gave an average result of 0.2 g/t Au and 232 ppm Cu with maximum
values of 0.69 g/t Au and 753 ppm Cu.
Blongas I and II: Covers a north-south elongate zone of 940 x 240 m. A total of 104 1 - 3 m wide
channel samples were collected from generally sparse outcrops. Fifty two out of 104 channel
samples returned an average of 0.1 g/t Au and 232 ppm Cu with maximum values of 0.33 g/t and
834 ppm, respectively.
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Kekalik: Alteration and anomalous geochemistry covers a broad area of approximately 700 x 600 m.
From 154 samples, 117 gave average values of 0.1 g/t Au and 228 ppm Cu with maximum values of
0.85 g/t and 2910 ppm, respectively.
Belikat: covering an area of approximately 740 x 640 m, reported average results from 65 out of 195
samples of 0.2 g/t Au and 873 ppm Cu with maximum values of 2.21 g/t and 14100 ppm,
respectively.
Kedaro: 66 out of 153 samples collected averaged 0.2 g/t Au and 303 ppm Cu with maximum results
of 2.21 g/t and 1350 ppm, respectively.
Lepangan Geres: a total of 407 rock samples have been collected within an approximate 600 x
300 m altered area. 231 returned an average grade of 0.2 g/t Au and 303 ppm Cu with maximum
values of 1.3 g/t and 3760 ppm, respectively.
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Drilling
Drilling has been carried out on the Pelangan and Mencanggah Prospect areas by Southern Arc and
on the Selodong Prospect by Newmont and Southern Arc. Drilling by Southern Arc was carried out
using up to seven drill rigs. The rigs are man portable, and have the capacity to drill PQ size
(85 mm), HQ size (63.5 mm) and NQ size (47.6 mm). Two of them can drill PQ to 130 m, HQ core to
350 m, and NQ to 650 m; the larger one can drill PQ to 200 m, HQ core to 550 m, and NQ to
1000 m. Triple tube drilling is used to maximize core recovery. Southern Arc indicates that the larger
core is drilled as much as possible.
The diamond drilling programmes were carried out by Indonesian drilling contractors PT Antero
Indodrill (2006 To 2008) and PT Promincon (2010 to 2013) under contracts to Southern Arc. Each
drill rig was operated by two direct employees of the drilling contractors, up to six local laborers, and
a field assistant employed by Southern Arc. The field assistant supervised the drilling, with additional
oversight from time to time during the day from site geologists. Down hole surveys of magnetic
azimuth and drill hole dip are made every 50 m using an Eastman single shot camera. Obvious
incorrect readings (affected by magnetic rocks or poor operator implementation) were discarded.
Collar locations are picked up by a contract surveyor using a differential GPS unit with a claimed
accuracy of ±1 cm. The DGPS base station is located at the West Lombok camp.
The core was transported daily from the rig site to the West Lombok exploration camp. A core
logging shed has been established under a thatched roof cover and partly in the open air. The core
area was reasonably orderly at the time of the site visit; a whiteboard is used to keep track of the
core trays on the racks and the current drilling.
On arrival at the camp, the core is washed and photographed. Two high resolution digital
photographs are taken of each core tray. The core photography setup is sufficient for the purpose of
routine recording of the core and the collection of geotechnical data. Clear core tray labeling is used
in the core photography and photos are reviewed by the site geologist to assure good photo quality.
Core logging was based on a Core Logging Manual prepared by Southern Arc. The manual is very
comprehensive and is based on the recording of all geological and geotechnical characteristics of
the drill hole sample using a coded input. The manual provides very detailed instructions on the data
that needs to be recorded as well as some training on the method of acquiring the data. Core logging
is carried out by local Indonesia geologists with oversight provided by Southern Arc senior geological
staff.
9.1
Pelangan Epithermal Prospect
Southern Arc‟s first phase of diamond drilling employed a small man-portable drill rig capable of
drilling to depths of 60 m HQ and 110 m NQ, designed, built, and supplied by PT. Antero Indodrill, a
Bogor-based drilling company. A network of tracks was constructed linking the drill pads, whilst core
logging/sampling/storage facilities were established in the northern part of the prospect area. The
program began with the collaring of the first hole, designated KDG-01, on June 28, 2006 and was
completed at the termination of RDG-14 on February 10, 2007. A total of 51 diamond drill holes were
completed for 3,762.05 m at an average recovery rate of 95.6% along the Kayu Putih, Raja-Ratu and
Tanjung-Jati MSBs as part of the first phase of drilling. All holes were drilled perpendicular to the
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main MSB structures at inclinations of -55° to -60°. Drilling has tested an aggregate strike of
approximately 3.5 km at intervals between 50 and 150 m.
A second phase of drilling was carried out on the Pelangan area between 2008 and 2012 focusing
on higher grade shoot defined from the first drilling campaign. Southern Arc completed an additional
9561 metres of drilling in 48 holes at the Pelangan Prospect..
The majority of holes were drilled well past the MSB targets to explore for any parallel mineralisation
in the immediate footwall rock zone. Initially the entire half-core of each hole, regardless of
alteration/mineralisation, was sampled. This practice was subsequently changed to sampling only
zones of moderate to intense quartz veining, intense silicic altered zones, and the immediate
peripheries of those zones. A total of 5,703 half drill core samples were taken and dispatched to ITS
laboratory for analysis of Au, Ag, Cu, Pb, Zn, Mo, Sb, Se, Te and Bi.
9.1.1 Pelangan Drilling Results
In general, targeted down-dip extensions of surface mineralisation were intersected with, aside from
southern Kayu Putih, comparable gold-silver values. In the case of southern Kayu Putih, drill
intercept grades (KDG-01 to KDG-05) are often a magnitude lower than surface outcrops,
suggestive of surface supergene effects. The main silica bodies/quartz veins were interpreted to be
largely vertical to sub-vertical, with a steep west-southwest dip; the most commonly recorded
attitude. A moderate to intense intermediate argillic (illite-smectite, kaolinite and dickite) altered
selvedge of varying widths (metres to 10s of metres) is a common feature on both the hanging wall
and footwall edges of the silica bodies/veins. This is often accompanied by strong differential
shearing resulting in strongly broken core (and slightly lower recoveries at the vein edges), both
leading to some uncertainty in determining vein attitudes.
The following are general observations of drilling results.
Raja MSB
Shallow drilling along the central and southern zones of the Raja MSB has confirmed continuity of
gold mineralisation within a 600 m strike length between drill holes QDG06 and RDG07. In this zone,
aggregated drill intersections of 128.4 m reported an average grade of 3.42 g/t Au and 19 g/t Ag,
over a vertical extent of 159.6 m (Figure 9.1). Higher grade zones are characterized by:

Quartz veins with fine-grained sulphide and telluride-mineral bands, swirls and clots located in
general along silica body/vein margins.

Low Au/Ag ratio of generally less than 5, elevated Te, Bi and Se values. Au and Te levels
appear to decline significantly at elevations higher than 275 m above sea level. Au/Ag ratios < 5
are typically ascribed in epithermal models and are inferred to lie near up-flow fluid zones; hence
prime targets for drill targeting.

Structural intersection of cross-cutting east to northeast and northwest traverse/tensional
fracture/fault zones with the main silica bodies / quartz vein systems.
All drill holes were cored at angles between 55° to 60° and spaced at intervals between 50 to 150 m
along strike, confirming a vertical to sub-vertical dip on the structure. Most of the mineralisation was
intercepted below the base of surface oxidation.
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Drill sections suggest that orientations of quartz vein systems consistently dip 70°-90° to the
southwest; however, at Raja North (RDG013, RDG014 & QD006) a possible sub-vertical northeast
dip is inferred. Deflections in strike and dip of silica bodies/quartz veining are attributed to
reactivation of pre-existing east-northeast trending, transverse fault / fracture zones. In a number of
sections, vein systems are interpreted to bifurcate and coalesce at depth; however, peripheral
veining is also another option.
The program has confirmed the presence of extensive, near surface gold mineralisation within the
central and southern parts of the Raja MSB. Drilling intercepts are of a comparable magnitude to
earlier surface outcrop sampling.
Rock lithologies logged throughout the 14 drill holes show a consistent volcaniclastic sequence of
polymictic volcanic lithic breccia with local intercalations of volcanic sandstone and well-bedded
siltstone, later intruded by diorite, andesite and feldspar porphyry stocks and dykes (5 - 30 m wide).
Differences between individual holes are ascribed to lateral facies differences in volcaniclastics,
along with effects of post-mineralisation faulting.
As noted from petrology studies of drill core (RDG09 and 11), the occurrence of K-silicate and hightemperature propylitic alteration assemblages, together with the presence of hydrothermal magnetite
in diorite and volcanic lithic breccia, evidences any early hot phase (>260°C) with clear magmatic
affinities. This early hot phase was later followed by cooler (190-240°C) acid to intermediate fluids,
evidenced by illite-smectite, kaolinite and dickite alteration (White, 1998).
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Figure 9.1: Significant drill intercepts from the Pelangan Prospect, Raja MSB target
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Ratu MSB
The five drill holes (QDG01-05) completed in this area targeted extensions below high-grade surface
rock-float/subcrop, but failed to intersect any major mineralised structures. The large volume of
locally high-grade material is now believed to be derived from the Tanjung MSB. Narrow mineralised
drill intercepts (QDG04: 1.4 m @ 4.9 g/t Au and 4.25 m @ 2.10 g/t Au/10.4 g/t Ag) are interpreted as
“horse-tail” splay structures developed between the Raja and Tanjung MSBs.
Tanjung-Jati MSB
Zones of potentially significant gold mineralisation have been intersected in 8 of 13 drill holes along
the 1.5 km strike length of the Tanjung-Jati MSB. Shallow drilling has confirmed continuity of
mineralisation to depths of around 50 m with locally high-grade intercepts. Like Raja, higher grade
zones are associated with quartz veins with fine-grained sulphide and telluride-mineral bands along
silica bodies and vein margins.
All drill holes to date have been cored at angles between 55° to 60°, and spaced at intervals
between 50 to 230 m along strike, confirming a vertical to sub-vertical dip of the structural breccias.
A change in dip direction between drill holes TDG07 and JDG01 most likely marks the effects of
movement of precursor east-northeasterly trending, transverse fault and fracture zones. In a number
of sections, vein systems are interpreted to bifurcate and coalesce at depth; however, peripheral
veining is also another option. Most of the mineralisation has been intercepted below the base of
surface oxidation and is generally comparable in magnitude to previous outcrop sampling.
Kayu Putih MSB
Encouraging gold-silver intersections were reported in 9 of the 17 holes drilled within the Kayu Putih
MSB area. Holes were drilled on a north-south grid orientation at intervals of 50-100 m, with
inclinations of -55° to -60°. The deepest mineralised intercept occurs at 59 m vertically below
surface, whilst the majority of intersections occur below the base of complete oxidation. Dips of the
intersected silica bodies / quartz vein structures vary between 60° to 90° northwards and are inferred
to bifurcate in a number of interpreted cross sections (Figure 9.2).
Drill results confirm the presence of near surface high-grade zones within the southeastern portion of
the mineralised structure. A 450 m long strike zone between drill holes KDG02 and KDG12 shows
the best potential for continuous high grade mineralisation. Within this zone, density of sulphide and
telluride bearing quartz veins is directly proportional to gold ± silver grades. Such vein types are
found predominantly along the margins of the silica body/ quartz vein system. Resistivity mapping
confirms the north-northwest migration of the structure with depth. Scissor holes (KD06 & 07)
confirm the northerly dip of the mineralised structure, effectively drilling down-dip in the intermediate
argillic alteration envelope.
Outside of the higher grade zone drill intersections reflect the predominance of silica ledges derived
from the early advanced argillic / potassic alteration event. Typically, drill intercepts are less than
0.2 g/t Au, but where sporadic quartz veins and breccias are encountered, values up to 3.52 g/t Au
and 41 g/t Ag (KDG09 and KDG14) are reported.
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Figure 9.2: Typical cross section of the Kayu Putih target, Pelangan Prospect
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Mencanggah Prospect
Phase 1 exploration at the Mencanggah Prospect was carried out in 2011. Initial drilling activities
focused on the Waterfall target, where Southern Arc completed 27 holes for a total of 6,634 m of
drilling, with 17 of the 27 holes encountering gold mineralisation. Southern Arc then concentrated its
efforts on the Bising target. A total of 8 holes were drilled during the first phase of drilling and 16
holes during the second phase of drilling.
Drilling on the Bising target led to the identification of a continuous mineralised lens that is the focus
of extensive mining activity by artisanal miners (Figure 9.3).
(photo by SRK)
Figure 9.3: Photo of artisanal mining excavation areas on Bising Deposit
The extensive width, up to 60 m width in surface outcrop of the main Bising epithermal body is
inferred to result from the intersection of geological structures: a major west-northwest trending fault
intersected by several north-northwest trending faults, the latter of which form the dominant gold
mineralised trend in the West Lombok district.
Additional drilling was carried out on the Mencanggah Prospect at Tibu Serai, an area located
approximately 1 km north of Bising. Southern Arc drilled 16 holes totalling 2,397 m on the Tibu Serai
Deposit.
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9.2.1 Mencanggah Drilling Results
Waterfall
Drilling at Waterfall below outcrops of banded and brecciated quartz veins intersected multiple
mineralised veins, some with encouraging gold mineralisation. Drilling tested a 2 km strike length of
the breccia zone and, of the 17 holes that encountered gold mineralisation, the best intersections
were found in holes MCG001 and MCG016. Drill hole MCG001 intersected 2.3 m grading 4 g/t gold
and hole MCG016 intersected 4.75 m grading 15.6 g/t gold 375 m north west of hole MCG001.
Follow-up drilling on the Waterfall returned mixed results with several holes returning only minor
mineralisation. Figure 9.4 summarises the drill results for the Waterfall area.
Figure 9.4: Drill results from the Waterfall area
Bising
Drilling at Bising focused on defining the vertical extent of the wide epithermal breccia body identified
in surface outcrops. The drilling demonstrated the consistency and width of mineralisation in the area
for over a 500 m strike length, with a large proportion of the drill holes intersecting wide intervals
averaging greater than 1 g/t gold mineralisation. Some of the more significant results include 53 m
grading 0.68 g/t gold in hole MCC057, 51 m grading 1.5 g/t gold in hole MCC028 and 26 m grading
1.22 g/t gold in hole MCC061. Figure 9.5 summarises the drill intersections for the Bising deposit.
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(source Southern Arc New release, 2013)
Figure 9.5: Longitudinal section of the Bising deposit showing drill hole intersections
Tibu Serai
Eight of the initial nine holes drilled at Tibu Serai intersected gold mineralisation within a 220 m strike
length centred on MCG055 (Figure 9.6). Two holes drilled 40 m northwest and southeast of MCG055
confirmed continuity of high gold grades along an 80 m strike length at similar elevations. MCG058,
located 40 m northwest, intersected 6.90 m @ 5.65 g/t gold, while MCG060, located 40 m southeast
of MCG055, intersected 5.10 m @ 5.29 g/t gold.
MCG061 intersected mineralisation 60 m vertically below MCG055 (26.30 m @ 1.22 g/t gold
including 8.00 m @ 3.21 g/t gold), indicating continuity of mineralisation at depth. MCG067, located
approximately 120 southeast of MCG055, intersected high-grade mineralisation (4.50 m @ 7.79 g/t
gold) within a second shoot zone that remains open to the southeast.
Drilling has also intersected a parallel vein zone exposed 200 m to the southeast of MCG067
(Figure 9.4). A narrow high-grade intersection in MCG058 (0.70 m @ 13.50 g/t gold and 2.3 g/t
silver) well above the targeted mineralisation is interpreted to represent the strike extension of this
parallel vein zone.
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Figure 9.6: Drill results from the Tibu Serai Deposit
9.3
Selodong Prospect
Historical Newmont drilling on the porphyry targets comprised 52 drill holes for a total of 7,956.5 m.
Forty eight shallow (150 m maximum) drill holes were completed with a man-portable Jakro Rig, and
four deeper holes (600 m) were drilled by a helicopter assisted Longyear 44 drill rig. Core drilling
was conducted using wire line recovery methods with PQ, HQ and NQ triple tube equipment. Core
recoveries were calculated for all core intervals; in general between 1.0 and 3.0 m, with bulk
samples up to a maximum of 27.7 m. Sampling comprised of splitting half the core with a diamond
saw, whilst half was retained. No detailed information is available on procedures followed.
Between April 2007 and September 2008, Southern Arc completed 30 drill holes for a total of
17,859.3 m of drilling and 8,576 half core geochemical samples. The drilling program was designed
on evaluation of the extensive PT NNT geological database. A five drill hole program was designed
initially to validate and extend the mineralisation previously drilled by PT NNT at Montong Botek and
Blongas II. Positive results were received from SLD001 to SLD005. Based on these results,
indications of other porphyry deposits from Newmont data and detailed mapping by the company
within the Selodong area, an additional seven targets were tested.
Sampling intervals were predominantly based on 2 m intervals and varied between 1-3 m based on
geological contacts. A total of 8,576 half core samples were collected including 279 standards and
135 blanks. Standards were inserted randomly within the sample stream and blanks were placed
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within or immediately below highly mineralised zones to check for contamination during lab-assay
procedures. Samples were dispatched to ITS laboratory for analysis of Au, Cu, Zn, Ag, and Mo.
9.3.1 Selodong Drill Results
Drilling at Selodong focused on six discreet porphyry targets, Montong Botek, Blongass II, Kekalik,
Belikat, Kedaro and Lepangan Geres. At Montong Botek, Southern Arc has partially defined an
open-ended north-south elongate Cu-Au mineralised zone of 450 m long by up to 200 m wide. This
north-south trending mineralised zone lies within an area defined by SA drill holes SLD011, SLD013,
and SLD023 in the north and shallow Newmont drill holes PSG012 to PSG014 and PSG017 to the
south. SLD029 effectively closed off vertical extensions below high grade mineralisation in SLD001003 by post mineral brecciation. Some of the more significant drill intersections at Montong Botek
include 168 m grading 0.51% copper and 0.84 g/t gold in hole SLD001 and 855 m grading 0.10%
copper and 0.22 g/t gold in hole SLD023. Figure 9.7 summarises the significant drill intersections for
the Selodong Prospect including the drilling for the Montong Botek area.
Figure 9.7: Drill results for the Selodong Prospect
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At Blongas II, Southern Arc drilled a total of eight holes that defined a north trending mineralised
dyke over a 900 m strike length but of relatively narrow width (50 to 200 m). Best results for
Blongas II include 407 m grading 0.25% copper and 0.45 g/t gold in hole SLD 004 and 406 m
grading 0.23% copper and 0.29 g/t gold in hole SLD005. Results for the other Blongas II drilling are
summarised in Figure 9.7.
Drill holes SLD009 and SLD010 were collared in the Kekalik target area to test below outcrops of
diorite intrusive with variable porphyry-style quartz stockwork veining. Hole SLD010 was collared
196 m west of SLD009 to test western portions of the same general target. Both drill holes
encountered porphyry Cu-Au style mineralisation and associated hydrothermal alteration, but Cu-Au
grades were relatively lower because of late-stage phyllic overprinting. Hole SLD009 reported only a
low grade gold intercept of 70.80 m at 0.18 g/t gold and holes SLD010 returned 32 m grading
0.16 g/t gold.
Two holes were targeted at Kedaro: SLD019 and SLD 027. Hole SLD 019 intersected 126 m grading
0.16% copper and 0.23 g/t gold. SLD027 was drilled 115 m south of SLD019; the previous drill hole
at Kedaro. The drill hole was positioned to test for potentially higher-grade mineralised extensions of
SLD019 and to see if significant mineralisation was associated with the large irregular 400 x 200 m
magnetic anomaly located immediately west of the drill collar.
SLD027 was drilled westward of SLD019 and encountered variably altered and weakly to nonmineralised quartz micro-diorite. The Kedaro target remains interesting as mineralisation remains
largely unexposed at surface and localised zones of elevated surface geochemistry with supporting
magnetic anomaly occur along an 800 m plus along a northwest trend.
Three holes were targeted at the Lepangan Geres target (Figure 9.8). SLD021 was drilled near the
center of the main diorite porphyry body and intersected 142 m grading 0.07% copper and 0.14 g/t
gold. SLD025 was located 160 m north of SLD021 and drilled westward at an inclination of -70
degrees to a depth of 550.1 m. From surface to a depth of 196 m, variably phyllic over-printed and
weakly mineralised micro-diorite was encountered. This zone returned the only significant
mineralisation within the hole (Figure 9.8). Hole SLD028 did not encounter any significant
mineralisation.
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Figure 9.8: Drill results for the Lepangan Geres target
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SRK Comments
SRK is of the opinion that the drilling programs carried out by Southern Arc on the West Lombok
property are sufficient and adequately spaced for use in the estimation of mineral resources for the
Pelangan, Mencanggah and Selodong prospect areas.
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10 Sample Preparation, Analyses, and Security
10.1 Surface Mapping Samples
For flocculated BLEG samples, moss aggregates, over-bank deposits and boulder cavities are
sampled vertically and the resulting material is wet-sieved through a minus 30 mesh sieve into a 10
litre plastic container. No water is allowed to escape from the plastic container and once a
substantial amount of sediment has been collected, an amount of flocculant (Magnofloc E30) is
mixed with the watery sediment until suspended clay material binds and aggregates together,
leaving clear water above the sedimentary mass. Water is decanted off and the sediment is placed
into a large calico bag, bound and squeezed to remove excess water. The sample is then doublebagged using a large plastic bag. Samples are dried in the sun for a period of 5 to 7 days and then
shipped to the ITS prep laboratory. Average sample weight was 4 to 5 kg of dry weight. For every 25
sample sites there was a random duplicate sample collected at one site. An average sample density
of one BLEG site per 1.4 km² was achieved during the sampling program.
Because of the large sample size in BLEG sampling and the involvement and consistency of four
experienced survey crews, it is considered that results reported have a high degree of accuracy,
quality and reliability. Supporting this opinion is that the highest reported BLEG assay values
emanate from known mineralised prospect areas.
Minus 80# stream sediment samples were split off from the BLEG sample during sample prep at the
ITS laboratory.
For rock samples from potentially mineralised outcrop exposures, along with float from hill talus and
streams, standard sampling procedures involved first removal of any obvious surface crustiform
weathering and/or organic matter, followed by the collection of a representative sample of the
inferred mineralised rock material. For continuous 1 to 3 m outcrop samples, samples were oriented
perpendicular to any obvious mineralised structure. Any obvious surface crustiform weathering
and/or organic matter was first removed, followed by a continuous channel of HQ/NQ core
proportions using either a rock chisel and hammer, or Stihl TS50 rock saw. Emphasis was placed on
collecting a uniform representative sample over the channel width to avoid sample bias. Where vein
samples were sampled these were either:
a. sampled as a single continuous channel sample from one vein margin to the other, or
b. sampled as a chip sample because of vein width less than 15 to 20 cm, or
c.
sampled as a continuous chip sample of 3 to 5 m to ascertain potential grades in preliminary
ground traverses.
Samples were described, numbered with relevant rock code (CH=channel, RC=rock chip or RF=rock
float), bagged with relevant sample tickets and temporarily stored at the company base camp. Hand
specimens of all samples were retained for future reference. Separate check samples from Gannet
and Windrift Australia along with blanks were submitted in a random fashion to approximate one
check sample per 25 rock samples collected.
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10.2 Drilling Samples Preparation and Analyses
The core sample intervals are marked directly on the core with a fibre-tip marker, and the sample
numbers assigned by the geologist are marked on red core blocks. The core is then cut in half with a
diamond core saw. The orientation of the cut of each piece is chosen as the most convenient by the
operator and a random half added to the sample and the saw is cleaned with water between
samples to minimize contamination. Both halves of the sawed core are replaced in the core box and
the sample is collected for bagging at a sample station controlled by the geologist.
The core halves for the sample are placed in a numbered calico bag, and pre-printed waterproof
sample tags are inserted. The sample details are filled out into the sample book and these are crosschecked by the geologist against the sample logging sheet. Standards are inserted at a rate of one
in twenty prior to bagging and blank material is inserted after mineralised samples (at a rate of about
1 in 40). The dispatch of samples is tracked on a whiteboard at the core shed. Samples are packed
into polyweave bags and sealed with numbered security tags before dispatch from the exploration
camp. The samples are driven by company employees to Southern Arc‟s Mataram logistics base for
shipping to the PT Intertek Utama Services (Intertek) laboratory in Sumbawa Besar for assay. A
report on sample condition, along with a note of any inconsistencies, is emailed by Intertek to the
company upon arrival of the sample at the laboratory.
Core trays from the entire exploration program are stored in a locked rattan, timber and thatch shed
at the exploration base. The shed is well organized and tidy, and the core trays are clearly marked
and stored in a logical order.
Excess sample pulp from the sample preparation (approximately 10 kg for each sample) is stored in
plastic bags at the Intertek sample preparation facility at Sumbawa Besar. Excess pulp from the
packet submitted to the Jakarta laboratory is stored onsite in a dedicated warehouse. This contains
material from all of Intertek‟s clients, and the materials are stored in an orderly fashion.
The core is marked for sampling by the logging geologist; the visual assessment of the grade zone is
used to break sample intervals.
The samples are prepared at the Intertek laboratory in the city of Sumbawa Besar, on the island of
Sumbawa, with assaying done at the Jakarta laboratory. The Jakarta laboratory is ISO 17025
accredited and employs a Laboratory Information Management System (LIMS) for sample tracking,
quality control and reporting. Upon arriving at Intertek the samples are treated as follows:
1. The samples are received;
2. The sample numbers are checked against accompanying paperwork; any discrepancies are
communicated to client before any processing begins;
3. The sample delivery form is completed;
4. The samples are weighed on a balance with a maximum capacity of 20 kg ±0.01 kg;
5. The sample weight form is completed;
6. The standards inserted by the client are identified and weighed separately on a small digital
balance to 0.1 g;
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7. The samples are loaded on a trolley with blanks (crushed volcanic rock) and dried in an electric
fan forced oven for twelve hours at 105°C; the oven has an electronic temperature control;
8. The samples are crushed in a jaw crusher to ~2mm; the blank material is run through a crusher
after each sample and a compressed air hose is also used to clean the equipment. Each
Southern Arc sample typically takes 10 minutes to crush;
9. The sample tag is retrieved from the calico bag and placed in a numbered Kraft packet;
10. The crushed sample is placed in a numbered clear plastic bag;
11. The entire sample is pulverized in ~2kg batches in LM2 mills; typically each 2kg charge is milled
for 6 minutes. The target P95 is 75μm;
12. A blank wash is milled after each sample;
13. 1 in 20 samples is tested for grind size. 50 g is weighed out and sieved, with the oversize
weighed;
14. The milled sample is rolled 20 times on a mixing bench;
15. The sample is returned to the plastic bag;
16. The sample is split through a 24 slot riffle splitter; a sample split of 200g-250g is required, and
this usually takes about a sixfold splitting;
17. The sample splits are put into numbered Kraft packets and the previously identified standards
are replaced into the sample sequence. These are identified as standards on the packet;
18. The sample splits are packed into cardboard boxes and sent to the Jakarta assay laboratory;
and
19. The remaining pulverized samples are stored at the laboratory.
Gold is analysed by standard fire assay technique. Copper and silver were analysed by Intertek‟s
GAO2 method which consists of digestion of the sample in hydrochloric/perchloric solution
(HCl/HClO4) followed by an atomic absorption spectroscopy (ASS) analysis.
10.3 Specific Gravity Data
Specific gravity data were routinely collected by Southern Arc. All measurements were taken on core
samples using the simple water immersion technique. While this technique is adequate, it is less
than ideal for porous material. SRK recommends that Southern Arc should seal their core samples
with wax prior to carrying out the density measurements to assure that any rock porosity is properly
accounted for.
There are 1,408 bulk density measurements in the assay database provided by Southern Arc; 404
samples were collected from the Mencanggah Prospect, 141 from Pelangan and 863 from the
Selodong area. Of the data provided, only one sample was deemed invalid and removed from the
database prior to resource estimation. Figure 10.1 summarises the basic statistical data of the bulk
density collected.
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Figure 10.1: Statistical data for bulk density measurements
10.4 Quality Assurance and Quality Control Programs
Intertek quality control includes repeat assaying, use of blanks and a series of 23 different standard
reference materials (SRMs) for individual elements. Standards are commercially prepared and
purchased from Gannet Holdings Pty Ltd, Geostats and Canmet in Australia. Blanks and samples
are inserted randomly into batches of 50, comprising 45 samples, 1 blank, 2 duplicate pulp samples
and 2 standards. Duplicate samples are selected randomly from the samples submitted and assayed
at the end of the batch, numbered with the same number as that of the original sample. A dedicated
Laboratory Quality Manager analyzes the QA/QC performance of the laboratory, with results
reported to clients on an as-requested basis. Final results are reviewed by expatriate management
who certify that all relevant QA/QC procedures have been followed. Intertek participates in both an
internal and external inter-laboratory round robin assaying exercises.
The company employs a QA/QC program through the systematic use of standards and blanks and
the normal chain of custody measures during sample transport. The company has used up to 29
different commercial standards produced by Geostats Pty Ltd and Gannet Holdings Pty Ltd,
purchased through Intertek Perth. Recommended assay values ± confidence intervals are provided
on standards received. A total of 499 gold standards, 105 copper standards and 381 blanks have
been used in drilling programs. On average, 1 standard has been inserted into the sample stream
every 31 samples and 1 blank inserted on average every 63 samples. Standards are placed
randomly within the sample stream, whilst blanks are inserted non-randomly either within or
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immediately below visually-inferred mineralised zones. “Blank” material comprises fresh basalticandesite lava collected from tertiary lava flows at the foot of Mt. Rinjani, with the highest Au result
recorded from this material being 0.04 ppm Au within equipment reading detection error.
10.5 SRK Comments
SRK reviewed the QA/QC data and noticed that few samples fell outside of the acceptable failure
limits. Of the 499 gold standards submitted, SRK noted three standards outside of the acceptable
limits, and at least two of these appear to be mislabeled standards. Three of the 105 copper
standards fell outside of the acceptable limits and should be investigated. SRK is of the opinion that
the sample handling and shipping is in keeping with best industry practices and adequate for this
type of deposit and mineralisation. A review of the blank samples submitted did not reveal any
serious contamination issues with sample preparation.
In the opinion of SRK, the sampling preparation, security and analytical procedures used by
Southern Arc are consistent with generally accepted industry best practices and are therefore
adequate.
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11 Data Verification
11.1 Verifications by Southern Arc
Because exploration is still at an early stage, only limited independent verification of analytical
results has been undertaken to date. A total of 195 Selodong drill core pulps previous assayed by
ITS Intertek were submitted to SGS / Indoassay (Balikpapan) for re-assay, by the same methods as
the Intertek assay (fire assay for Au and acid digest/ASS for Cu). Indoassay Balikpapan is part of the
SGS Group which, like ITS Intertek, provides inspection, testing, certification and verification
services worldwide. Similarly, they are ISO accredited and employ relevant LIMS for sample
tracking, quality control and reporting.
Comparison of assay results shows very similar means and medians for the two laboratories for both
elements, although the maxima for Au are very different and the Indoassay Au assays are somewhat
less variable. SRK considers that the results of re-assays are reasonably similar, although some
large differences were noted and those should be addressed by repeating the re-assay program with
additional pulps.
A total of 140 Pelangan drill core pulps previously assayed by ITS Intertek were submitted to
Kalassay Laboratory (KAL) domiciled at 10 Elmsfield Road, Perth, WA 6056, Australia. Kalassay is
part of the Inspectorate Group which, like ITS Intertek, provides inspection, testing, certification and
verification services worldwide. Similarly, they are ISO accredited and employ relevant LIMS for
sample tracking, quality control and reporting.
Comparison of assay results show ITS gold and silver assays are less than corresponding KAL
values by an average of 9% and 19%, respectively. The latter is attributed to differing finishing
methodology for silver analysis (AAS versus ICP-MS methodology), while the former is within
accepted industry tolerances.
11.2 Verifications by SRK
11.2.1 Site visit
SRK carried out two site visits: the first visit was from December 6 to 9, 2011, with the follow up visit
from April 23 to 26, 2013. During the site visit, SRK examined the drill sites and logging and
sampling procedures, examined the geology in the field, and re-logged several drill holes from each
of the prospect areas. Mineralisation and alteration were noted in drill core and SRK observed
several artisanal miners operating in the Bising and Tibu Serai areas during both site visits.
11.2.2 Verifications of analytical quality control data
SRK reviewed the sample database and noted that a wide range of sample lengths exists in the
database from 0.15 m to 3.8 m with the bulk of the samples (68%) being between 0.5 m and 1.5 m in
lengths. SRK recognizes that shorter sample lengths are often necessary in early stage exploration
for epithermal deposits but recommends that Southern Arc try to standardize sample lengths as
much as possible and avoid taking samples longer than 2 m whenever possible.
SRK validated the digital database by checking for inconsistencies in naming conventions, analytical
units, duplicate entries, length, distance values, or sample intervals less than or equal to zero, blank
or zero-value assays, out-of-sequence intervals, intervals or distances greater than the reported drill
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hole length, inappropriate collar locations, and missing interval and coordinate fields. A few minor
inconsistencies were noted and corrected by SRK. No other significant validation errors were noted
in the supplied database.
SRK compared the digital assay database provided by Southern Arc against original assay
certificates provided by Intertek and found no significant data entry errors. In all, SRK validated 85%
of the assay database and found no significant errors.
SRK reviewed the QA/QC data and sampling program and found the data and programs to be
acceptable for the purpose of resource estimation.
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12 Mineral Processing and Metallurgical Testing
There have been no metallurgical samples collected for testing from the West Lombok Property so
far. SRK recommends that samples be collected for basic metallurgical testing during the next phase
of drilling on the property.
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13 Mineral Resource Estimates
13.1 Introduction
The Mineral Resource Statement presented herein represents the first mineral resource evaluation
prepared for the West Lombok Project in accordance with the Canadian Securities Administrators‟
National Instrument 43-101.
The mineral resource model prepared by SRK considers 253 core boreholes drilled by Southern Arc
and Newmont during the period of 2007 to 2013. The drilling covers three discreet prospect areas:
85 drill holes cover the Selodong porphyry copper-gold Prospect, 89 holes cover the Pelangan
epithermal gold Prospect and 67 holes cover the Mencanggah epithermal gold Prospect. Of these,
99 drill holes intersected the mineralised zones considered for resource estimation; 36 drill holes
totalling 5,787 m were included in the Raja resource model, 22 drill holes totalling 3,830 m were
included in the Bising model, 10 holes totalling 1,370 m were included in the Tibu Serai model and
31 holes totalling 11,012 m were included in the Selodong model. The resource estimation work was
completed by Dr. Gilles Arseneau, P.Geo (APEGBC) an appropriate “independent qualified person”
as this term is defined in National Instrument 43-101. The effective date of the resource statement is
July 13, 2013.
This section describes the resource estimation methodology and summarises the key assumptions
considered by SRK. In the opinion of SRK, the resource evaluation reported herein is a reasonable
representation of the global copper and gold mineral resources found in the West Lombok Project at
the current level of sampling. The mineral resources have been estimated in conformity with
generally accepted CIM “Estimation of Mineral Resource and Mineral Reserves Best Practices”
guidelines and are reported in accordance with the Canadian Securities Administrators‟ National
Instrument 43-101. Mineral resources are not mineral reserves and do not have demonstrated
economic viability. There is no certainty that all or any part of the mineral resource will be converted
into mineral reserve.
The database used to estimate the West Lombok Project mineral resources was audited by SRK.
SRK is of the opinion that the current drilling information is sufficiently reliable to interpret with
confidence the boundaries for epithermal gold and porphyry copper mineralisation and that the
assay data are sufficiently reliable to support mineral resource estimation.
TM
Gemcom GEMS Version 6.5 was used to construct the geological solids, prepare assay data for
geostatistical analysis, construct the block model, estimate metal grades and tabulate mineral
TM
resources. The Geostatistical Software SAGE2001 was used for geostatistical analysis and
variography.
13.2 Resource Estimation Procedures
The resource evaluation methodology involved the following procedures:
GA / MN

Database compilation and verification;

Construction of wireframe models for the boundaries of the vein-hosted gold and porphyry
copper mineralisation;

Definition of resource domains;
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
Data conditioning (compositing and capping) for geostatistical analysis and variography;

Block modelling and grade interpolation;

Resource classification and validation;

Assessment of “reasonable prospects for economic extraction” and selection of appropriate cutoff grades; and

Preparation of the Mineral Resource Statement.
13.3 Resource Database
The drill hole database used to estimate the mineral resources presented in this report contains 241
drill holes including 53,252 m of core. The drill hole database contains descriptive information and
assay grades from exploration drilling carried out by Southern Arc and Newmont. The database was
provided to SRK as an ACCESS database that includes the following tables:

Drill hole collar information such as location and length;

Down hole survey information such as direction and dip;

Lithology information including rock group codes and interpreted geology;

Mineralisation information including mineral types;

Geotechnical data, RQD and recovery data;

Vein counts and types of veins;

Alteration information including alteration type;

Down hole magnetic susceptibility data;

Down hole specific gravity measurements; and

Chemical analytical (assay) records.
TM
The supplied mineral resource database was imported into Gemcom‟s GEMS 6.5 software and
validated by checking for inconsistencies in naming conventions, analytical units, duplicate entries,
length, distance values, sample intervals less than or equal to zero, blank or zero-value assays, outof-sequence intervals, intervals or distances greater than the reported drill hole length, inappropriate
collar locations, and missing interval and coordinate fields. A few minor inconsistencies were noted
and corrected by SRK. No other significant validation errors were noted in the supplied database.
13.4 Solid Body Modelling
Solid models were created to provide spatial limits for each of the mineralisation domains within the
West Lombok deposits. Separate geological models were generated for each of the prospect areas
estimated. Domains were created by interpretation of the drill hole lithology and assay data from the
drill holes.
13.4.1 Raja Deposit – Pelangan Prospect
The gold mineralisation at the Raja Deposit is generally associated with quartz veins within wider
quartz breccia zones. The gold is associated with a high sulphidation epithermal quartz vein system.
Two parallel vertical veins have been identified within the Raja Deposit area. The veins have been
explored by drilling over a strike length of 1,000 m and to a vertical depth of 250 m (Figure 13.1).
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Wireframes were constructed on 20 m spaced sections using a 1.5 m minimum horizontal thickness
and a 0.15 g/t nominal cut off. A digital model of the topography was also generated and the vein
wireframes were clipped against the digital surface topographic model. No surface was generated for
overburden, but little or no overburden occurs over the vein areas.
Note: Grid is 200 by 200 m
Figure 13.1: Planveiw of Raja wireframes
13.4.2 Bising and Tibu Serai Deposits – Mencanggah Prospect
The gold mineralisation at Bising and Tibu Serai is generally associated with quartz breccia zones.
The gold is associated with a high sulphidation epithermal quartz vein system. Two parallel vertical
veins have been identified within the Bising Deposit area and a single high grade vein has been
identified at Tibu Serai so far. The veins have been explored by drilling over a strike length of 700 m
at Bising and 200 m at Tibu Serai (Figure 13.2).
TM
Geological modelling was completed by SRK using Gemcom GEMS version 6.5. Wireframes were
constructed on 20 m spaced sections using a 1.5 m minimum horizontal thickness and a 0.15 g/t
nominal cut off. A wireframe of the topography was also generated and the vein wireframes were
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clipped against surface topography. No surface was generated for overburden, but little or no
overburden occurs over the vein area.
Figure 13.2: Planview of Bising and Tibu Serai wireframes (Note: Grid is 500 by 500 m)
13.4.3 Selodong Deposit – Selodong Prospect
The copper-gold gold mineralisation at Selodong is associated with structural zones within altered
diorite. Two main porphyry zones have been identified by drilling and extend for about 1,500 m in a
north-south direction (Figure 13.3).
TM
Geological modelling was completed by SRK using Gemcom GEMS version 6.5. Wireframes were
constructed on 50 m spaced sections using a 0.2 g/t copper equivalent. A wireframe of the
topography was also generated and the vein wireframes were clipped against surface topography.
No surface was generated for overburden, but little or no overburden occurs over the vein area.
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Figure 13.3: Planview of Selodong wireframes (Note: Grid is 500 by 500 m)
13.5 Compositing
All assay data were composited to a fixed length prior to estimation. SRK evaluated the assay
lengths for each of the resource areas and selected the most appropriate composite length for each
area.
An evaluation of sample lengths indicated that 92% of assay lengths within the mineralised zones
were 1 m or less (Table 13.1). For this reason, SRK decided to composite the assay data to a fixed
1 m length within the wireframes starting from the drill hole collars. Any composites that were less
than 0.5 m in length after the compositing routine were added to the previous interval to assure that
no composites were less than 0.5 m or greater than 1.5 m.
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Table 13.1: Comparison of sample length and average gold grade for Raja Deposit
Sample Count
Average Au Grade
(g/t)
Cumulative %
44
3.38
4.72
0.25-0.50
324
5.06
39.44
0.50-0.75
281
3.18
69.56
0.75-1.00
213
2.34
92.39
1.00-1.50
62
1.24
99.04
1.50-2.00
9
1.96
100.00
Assay Length (m)
<=0.25
Grand Total
933
were 1.5 m or less (Table 13.2). For this reason, SRK decided to composite the assay data to a fixed
1.5 m length within the wireframes starting from the drill hole collars. Any composites that were less
Table 13.2: Comparison of sample lengths and average gold grade for the Bising and Tibu Serai
Deposits
Sample Count
Average Au Grade
(g/t)
Cumulative %
23
1.69
2.4
365
1.37
41.4
0.50-0.75
85
1.15
50.5
0.75-1.00
292
0.69
81.6
1.00-1.50
96
0.47
91.89
1.50-2.00
76
0.42
100
Assay Length (m)
<=0.25
0.25-0.50
Grand Total
937
were 3 m or less (Table 13.3). For this reason, SRK decided to composite the assay data to a fixed
3 m length within the wireframes starting from the drill hole collars. Any composites that were less
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Table 13.3: Comparison of sample lengths and average gold grade for the Selodong Deposit
Sample Count
Average Au
Grade (g/t)
Average Cu
Grade (%)
Cumulative %
54
0.5
0.28
2.1
1.5-2.0
1439
0.38
0.23
59.2
2.0-2.5
224
0.38
0.25
68.1
2.5-3.0
582
0.39
0.26
91.2
3.0-3.5
127
0.33
0.23
96.2
3.5-4.0
47
0.26
0.16
98.0
4.0-4.5
15
0.35
0.23
98.6
4.5-5.0
33
0.26
0.17
100
Assay Length (m)
<=1.5
Grand Total
2521
13.6 Evaluation of Outliers
Grade capping analysis was conducted on the domain-coded sample assay data in order to limit the
influence of extreme assay values during estimation.
Block grade estimates may be unduly affected by high grade outliers. Therefore, assay data were
evaluated for high grade outliers and capping was determined from decile and probability plot
analyses.
Because of the high variation in raw assay lengths from 0.2 m to 1.5 m, SRK evaluated the assay
average grades of different sample lengths to determine if shorter sample lengths were associated
with high grade sections of the deposits and to evaluate if compositing prior to capping was
appropriate. Some correlation between sample lengths and assay values was apparent, with shorter
sample lengths having higher average grades than longer sample lengths. Based on the analysis,
SRK decided to carry out the capping on 1 m composites, not the assay data. Table 13.4
summarises the capping data for the Raja Deposit.
Table 13.4: Capping Level for Raja Deposit
Zone
Raja
Mean Au (g/t)
Maximum
Value (g/t)
Cap Value
(g/t)
Average
Average
Capped
92
30
2.99
2.67
Number
Capped
Lost Metal*
(%)
8
12
*Lost metal is (Average - Averaged Capped)/Average*100 where Average is the average grade of the assays before
capping and Average Capped is the average grade of the assays after capping.
13.6.2 Bising and Tibu Serai deposits – Mencanggah Prospect
SRK evaluated the assay data for the Bising and Tibu Serai Deposits to determine if capping was
required. Capping analysis was carried out on 1.5 m composites and the capping level was set at
5 g/t gold based on the change of slope on a cumulative probability plot (Figure 13.4).
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SRK evaluated the gold assay data for the Selodong Deposit to determine if capping was required.
Because of the longer composite length of 3 m used for Selodong and because of the lack of
apparent higher average grade associated with shorter composites (Table 13.3), SRK decided to
cap the gold assay data prior to compositing to 3 m lengths. Capping levels were set to 4 g/t. SRK
decided that copper did not require capping as no significant grade outliers seemed to exist for
copper.
Figure 13.4: Capping level for Bising and Tibu Serai Deposits
13.7 Statistical Analysis and Variography
A basic statistical analysis was carried out on assay and composited data. A summary of the
samples located within the mineralised envelope is presented in Table 13.5.
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Table 13.5: Statistics for gold assays and gold composites – Raja Deposit
Assay Data
1 m Composite Uncap
1 m Composite Cap
Number of Data
933
614
614
Mean
2.89
2.99
2.67
Minimum
0
0
0
Maximum
130
92
30
Upper Quartile
2.89
2.79
2.79
Median
1.23
1.28
1.28
Lower Quartile
0.55
0.64
0.64
Variance
100
50.85
19.87
10.01
7.31
4.46
2.85
2.38
1.67
Standard Deviation
CV
Because of the narrow nature of the mineralised domain at Raja, experimental correlograms and
models could not be generated from the existing data set. A simple omni directional exponential
TM
variogram was designed from the grade times thickness (GT) data using Sage2001 software.
samples located within the mineralised envelope is presented in Table 13.6.
Table 13.6: Basic statistics for assays and composited data – Bising and Tibu Serai Deposits
Assay Data
1.5 m Composite Uncap
1.5 m Composite Cap
Au (g/t)
Au (g/t)
Au (g/t)
Number of Data
1140
680
680
Mean
1.19
0.89
0.68
Minimum
0
0
0
Maximum
89.0
42.8
5
Upper Quartile
0.72
0.27
0.27
Median
0.39
0.42
0.42
Lower Quartile
0.24
0.67
0.67
Variance
25.1
6.9
0.77
5.0
2.64
0.88
4.19
2.96
1.28
Standard Deviation
CV
samples located within the mineralised envelops is presented in Table 13.7.
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Table 13.7: Basic statistics for gold and copper assays and composites – Selodong Deposit
Assay Data
3 m Composite Cap
Assay Data
3 m Composite
Au (g/t)
Au (g/t)
Cu (%)
Cu (%)
Number of data
2544
2073
2544
2073
Mean
0.376
0.37
0.23
0.23
Minimum
0
0
0
0
Maximum
8.6
3
1.62
1.59
Upper Quartile
0.45
0.45
0.30
0.30
Median
0.27
0.27
0.19
0.19
Lower Quartile
0.45
0.17
0.11
0.11
Variance
Standard
Deviation
0.17
0.11
0.03
0.03
0.41
0.33
0.17
0.17
1.1
0.31
0.76
0.13
CV
Spatial continuity of gold and copper was evaluated with correlograms developed using SAGE
TM
2001 version 1.08. The correlogram measures the correlation between data values as functions of
their separation distance and direction. The distance at which the correlogram is close to zero is
called the “range of correlation” or simply the range. The range of the correlogram corresponds
roughly to the more qualitative notion of the “range of influence” of a sample or composite.
Variographic analysis was completed for gold for the Raja, Bising, Tibu Serai and Selodong Deposits
and for copper for the Selodong Deposit. Directional correlograms were generated for composited
data at 30 degree increments along horizontal azimuths. For each azimuth, correlograms were
calculated at dips of 0, 30 and 60 degrees. A vertical correlogram was also calculated. Using
information from these 37 correlograms, Sage determines the best fit model using least square fit
method. The correlogram model is described by the nugget (Co), two nested structure variance
contributions (C1, C2), ranges of the variance contributions and the model type (spherical or
exponential). After fitting the variance parameters, the algorithm then fits an ellipsoid to the 37
ranges from the directional models for each structure. The final models of anisotropy are given by
the lengths and orientations of the axes of the ellipsoids.
Correlograms were developed on composited assay data except for the Raja Deposit where
correlograms were developed on grade times thickness (GT) because of the narrow nature of the
mineralisation at Raja. Table 13.8 summarises the correlogram parameters used for each of the
deposit areas estimated.
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Table 13.8: Au and Cu exponential correlogram parameters by deposit
Deposit
Raja
Bising
Tibu Serai
Selodong
Selodong
Metal
Au
Au
Au
Cu
Nugget
C0
0.1
0.27
0.16
0.1
Sill
C1, C2
Gemcom Rotations (RRR rule)
around Z
around Y
Ranges a1, a2
around Z
X-Rot
Y-Rot
Z-Rot
0.9
0
0
0
40
40
40
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.507
79
60
-118
20
65
15
0.223
79
60
-118
150
100
20
0.83
12
37
20
177
135
51
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0.81
12
37
16
117
67
43
N/A
N/A
N/A
N/A
N/A
N/A
N/A
13.8 Block Model and Grade Estimation
Mineral resources for the West Lombok Project were estimated in three separate block models; one
representing each of the main prospect areas (Figure 13.5).
TM
Block modelling was carried out in Gemcom GEMS
Consultant with SRK.
6.5 software by Dr. Gilles Arseneau, Associate
Block estimates were carried out in 10 x 10 x 5 m blocks for the Raja, Bising and Tibu Serai Deposits
and a 10 x 10 x 10 m for the Selodong Deposit. A percent model was used to weight partial blocks
situated at zone boundaries. Block model parameters are defined in Table 13.9.
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Figure 13.5: Plan view of the three block model areas on the West Lombok Project (Note: Grid is 2 km x
2 km)
Table 13.9: Block model setup parameters
Model
Easting
Raja
Northing
Elevation
Easting
Bising – Tibu Serai
Northing
Elevation
Easting
Selodong
Northing
Elevation
Model Origin
(WGS 84)
Block Size
(m)
No of Blocks
384,200
10
120
9,027,800
10
140
400
5
125
387,900
10
110
9,023,530
10
170
510
5
88
390,600
10
100
9,020,800
10
200
240
10
75
The Gemcom block model origin is defined at minimum X and Y and maximum Z value.
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13.8.1 Grade models
Grades were estimated by Ordinary Kriging with a minimum of two samples for Raja, four samples
for Selodong and five samples for Bising –Tibu Serai deposits. To estimate block grades a maximum
of twelve composites were used in the Raja and Bising –Tibu Serai deposits and a maximum of nin
to twelve composites were used in the Selodong Deposit. Grade interpolations were carried out in
three passes, with each successive pass using a larger search radius than the preceding pass and
only estimating the blocks that had not been interpolated by the previous pass. Table 13.10
summarises the search parameters for each interpolation pass.
Table 13.10: Search parameters by deposit and metal
Metal
Deposit
Rotation
Pass
Max.
Samples
per DDH
Number of
Composites
Search Ellipse Size
Z
Y
Z
X (m)
Y (m)
Z (m)
Min.
Max.
Au
Raja
1
15
20
0
20
60
50
2
12
1
Au
Raja
2
15
20
0
20
75
75
1
12
1
Au
Raja
3
15
20
0
10
20
20
1
12
12
Au
Bising
1
60
60
-49
75
50
14
5
12
4
Au
Bising
2
60
60
-49
150
100
14
3
12
2
Au
Bising
3
60
60
-49
20
20
14
2
12
12
Au
Tibu Serai
1
50
60
-49
75
50
14
5
12
4
Au
Tibu Serai
2
50
60
-49
200
100
14
3
12
2
Au
Tibu Serai
3
50
60
-49
20
20
14
2
12
12
Au
Selodong
1
12
37
20
50
50
20
4
9
2
Au
Selodong
2
12
37
20
100
100
40
4
12
3
Au
Selodong
3
12
37
20
177
135
50
4
12
3
Au
Selodong
4
12
37
20
25
25
10
3
12
12
Cu
Selodong
1
12
37
20
50
50
20
4
12
2
Cu
Selodong
2
12
37
20
100
100
40
4
12
2
Cu
Selodong
3
12
37
20
177
135
50
4
12
2
Cu
Selodong
4
12
37
20
25
25
10
3
12
12
13.8.2 Bulk density model
There are 1,408 bulk density measurements in the West Lombok database with an average of 2.58.
SRK is of the opinion that while these are sufficient to estimate a mineral resource, the amount of
bulk density data is too limited for estimation by kriging. For this reason, SRK used a simple average
to estimate the model block densities. Bulk density data used for the resource estimate is
summarised in Table 13.11.
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Table 13.11: Bulk density used for resource estimation
Deposit
Average SG
Count
Raja
2.51
141
Bising
2.55
277
Tibu Serai
2.48
127
Selodong
2.56
863
Default waste rock
2.60
NA
13.9 Model Validation and Sensitivity
13.9.1 Validation of Raja model
The Raja block model was validated by comparing the interpolated block grades against the
composited cap grades on section and plan views (Figure 13.6). Overall, the comparison showed
that the estimated blocks agreed reasonably well with the composite grades from which they were
derived.
Figure 13.6: Comparison of block grades and composite grades, block model Level 58 (110 m above
sea level) (Note: Grid is 200 x 200 m)
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Additional validation of the Raja model was provided by re-estimating the mineral resources using
2
2
inverse distance squared (ID ) estimation. The ID estimation was carried out using the same search
criteria as for the Ordinary Kriging run, but 1 m composited gold assays were used directly to
estimate gold grades instead of using grade times thickness. The two estimation procedures
returned very similar results. The Ordinary Kriging model returned slightly more tonnes at a lower
2
grade than the ID model, but the two models contained similar metal content (Figure 13.7).
400000
350000
OK oz
Contained ounces
300000
ID2 Oz
250000
200000
150000
100000
50000
0
0
1
2
3
4
5
6
Cut-off Au (g/t)
Figure 13.7: Metal content of Ordinary Kriged and Inverse Distance Squared models at various grade
cut-offs
13.9.2 Validation of Bising – Tibu Serai model
The Bising and Tibu Serai block model was validated by comparing the interpolated block grades
against the composited cap grades on section and plan views (Figure 13.8). Overall, the comparison
showed that the estimated blocks agreed reasonably well with the composite grades from which they
were derived.
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Figure 13.8: Plan view of Bising Deposit comparing block and composite gold grades, block model
Level 25 (345 m above sea level) (Note: Grid is 200 x 200 m)
Additional validation of the Bising and Tibu Serai model was carried out by comparing well informed
blocks with composites contained within those blocks, and comparison of average assay grades with
average block estimates along different directions – swath plots.
Figure 13.9(a) shows a comparison of estimated gold block grades, with borehole composite assay
data contained within those blocks, within the mineralised domains for the Bising deposit.
Figure 13.9(b) shows the same for the Tibu Serai deposit. On average, the estimated blocks are
similar to the composite data, although there is a large scatter of points around the x = y line. This
scatter is typical of smoothed block estimates compared to the more variable assay data used to
estimate those blocks. The thick white line that runs through the middle of the cloud is the result of a
piece-wise linear regression smoother. Comparison for Tibu Serai is very limited because of the
small size of the deposit and available data.
Domain 201
Domain 301
Nb. of data 203
X Var: mean 0.692
std. dev. 0.734
minimum 0.001
maximum 5.000
Y Var: mean 0.673
std. dev. 0.464
minimum 0.181
maximum 2.937
correlation 0.659
rank corr. 0.596
Reg: smoothed Y
1.
.1
10.
Estimates
Estimates
10.
Nb. of data 40
X Var: mean 0.975
std. dev. 1.046
minimum 0.001
maximum 5.000
Y Var: mean 0.989
std. dev. 0.810
minimum 0.055
maximum 2.854
correlation 0.746
rank corr. 0.853
Reg: smoothed Y
1.
.1
.1
1.
10.
.1
Composites
1.
10.
Composites
Figure 13.9: Comparison of well-informed blocks for Bising (a) and Tibu Serai (b)
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As a final check, average composite grades and average block estimates were compared along
different directions. This involved calculating de-clustered average composite grades and
comparison with average block estimates along east-west, north-south, and horizontal swaths.
Figure 13.10 shows the swath plots in the mineralised zone at Bising and Figure 13.11 shows the
swatch plot for the mineralised zone at Tibu Serai. The average composite grades and the average
estimated block grades are quite similar in all directions. The composite data display slightly more
variability than the block grades as a result of the smoothing effect due to the Ordinary Kriging
estimation. Overall, the validation shows that the current resource estimate is a good reflection of
drill hole composited data. Comparison of the Tibu Serai data is of limited use because of the small
data set used to prepare the block model.
Figure 13.10: Swath plot of composite and block grades for Bising
Figure 13.11: Swath plot of composite and block grades for Tibu Serai
13.9.3 Validation of Selodong Model
The Selodong block model was validated by comparing the interpolated block grades against the
composited cap grades on section and plan views (Figure 13.12). Overall, the comparison showed
that the estimated blocks agreed reasonably well with the composite grades from which they were
derived.
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Figure 13.12: Plan view of Selodong model comparing copper equivalent block grades and
corresponding composite grades, block model Level 22 (25 m above sea level)( Note: Grid is
200 x 200 m)
Additional validation of the Selodong model was carried out by comparing well informed blocks with
composites contained within those blocks, and comparison of average assay grades with average
block estimates along different directions – swath plots.
Figure 13.13 shows a comparison of estimated gold block grades with borehole composite assay
data contained within those blocks in all mineralised domains of the Selodong deposit. Figure 13.14
shows the same for copper. On average, the estimated blocks are similar to the composite data,
although there is a large scatter of points around the x = y line. This scatter is typical of smoothed
block estimates compared to the more variable assay data used to estimate those blocks. The thick
white line that runs through the middle of the cloud is the result of a piece-wise linear regression
smoother.
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Domain 400
Domain 401
Nb. of data 437
X Var: mean 0.309
std. dev. 0.242
minimum 0.005
maximum 1.390
Y Var: mean 0.314
std. dev. 0.214
minimum 0.008
maximum 1.326
correlation 0.940
rank corr. 0.911
Reg: smoothed Y
10.
1.
.1
100.
Nb. of data 341
X Var: mean 0.432
std. dev. 0.355
minimum 0.010
maximum 1.813
Y Var: mean 0.444
std. dev. 0.324
minimum 0.019
maximum 1.762
correlation 0.887
rank corr. 0.861
Reg: smoothed Y
10.
Estimates
100.
Estimates
Page 92
.01
1.
.1
.01
.001
.001
.001
.01
.1
1.
10.
100.
.001
.01
Composites
.1
1.
10.
100.
Composites
Figure 13.13: Comparison of well-informed blocks with composite gold grades for Selodong model
(Note: Refer to Figure 13.3 for Selodong mineralised domain location)
Domain 400
Nb. of data 437
X Var: mean 0.197
std. dev.
0.123
minimum
0.002
maximum
0.655
Y Var: mean 0.198
std. dev.
0.109
minimum
0.004
maximum
0.576
correlation 0.927
rank corr.
0.918
Reg: smoothed Y
Estimates
10.
1.
.1
.01
100.
Domain 401
Nb. of data 341
X Var: mean 0.283
std. dev.
0.207
minimum
0.003
maximum
1.365
Y Var: mean 0.283
std. dev.
0.188
minimum
0.011
maximum
1.240
correlation 0.939
rank corr. 0.909
Reg: smoothed Y
10.
Estimates
100.
1.
.1
.01
.001
.001
.001
.01
.1
1.
10.
100.
.001
Composites
.01
.1
1.
10.
100.
Composites
Figure 13.14: Comparison of well-informed blocks with composite copper grades for Selodong model
As a final check, average composite grades and average block estimates were compared along
different directions. This involved calculating de-clustered average composite grades and
comparison with average block estimates along east-west, north-south, and horizontal swaths.
Figure 13.15 shows the gold swath plots in the mineralised zones at Selodong and Figure 13.16
shows the copper swath plots. The average composite grades and the average estimated block
grades are quite similar in all directions. The composite data display slightly more variability than the
block grades as a result of the smoothing effect due to the Ordinary Kriging estimation. Overall, the
validation shows that current resource estimate is a good reflection of drill hole composited data.
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(a)
(b)
Figure 13.15: Swath plots for gold grades for Selodong for domain 400 (a) and domain 401 (b)
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(a)
(b)
Figure 13.16: Swath plots for copper grades for Selodong for domain 400 (a) and domain 401 (b)
13.10 Mineral Resource Classification
Block model quantities and grade estimates for the West Lombok Project were classified according
to the CIM Definition Standards for Mineral Resources and Mineral Reserves (December 2005) by
Dr. Gilles Arseneau, P.Geo. (APEGBC); an appropriate independent qualified person for the
purposes of National Instrument 43-101.
Mineral resource classification is typically a subjective concept. Industry best practices suggest that
resource classification should consider both the confidence in the geological continuity of the
mineralised structures, the quality and quantity of exploration data supporting the estimates, and the
geostatistical confidence in the tonnage and grade estimates. Appropriate classification criteria
should aim at integrating both concepts to delineate regular areas at similar resource classification.
SRK is satisfied that the geological modelling honours the current geological information and
knowledge. The location of the samples and the assay data are sufficiently reliable to support
resource evaluation. The sampling information was acquired primarily by core drilling on sections
spaced between 25 and 50 metres depending on the deposit modelled.
Generally, for mineralisation exhibiting good geological continuity, and investigated at adequate drill
hole spacing with reliable assay data, SRK considers that blocks estimated during the first estimation
run can be classified in the Indicated category within the meaning of the CIM Definition Standards for
Mineral Resources and Mineral Reserves. However, SRK is of the opinion that the mineralisation at
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the West Lombok Project is best classified as Inferred Mineral Resource because of the widely
spaced drilling and relatively poor grade continuity at the current drill spacing.
SRK is of the opinion that the confidence in the estimate is insufficient to allow for the meaningful
application of technical and economic parameters or to enable an evaluation of economic viability.
13.11 Mineral Resource Statement
CIM Definition Standards for Mineral Resources and Mineral Reserves (December 2005) defines a
mineral resource as:
“(A) concentration or occurrence of diamonds, natural solid inorganic material, or natural solid
fossilized organic material including base and precious metals, coal, and industrial minerals in or on
the Earth’s crust in such form and quantity and of such a grade or quality that it has reasonable
prospects for economic extraction. The location, quantity, grade, geological characteristics and
continuity of a Mineral Resource are known, estimated or interpreted from specific geological
evidence and knowledge”.
The “reasonable prospects for economic extraction” requirement generally implies that the quantity
and grade estimates meet certain economic thresholds and that the mineral resources are reported
at an appropriate cut-off grade, taking into account extraction scenarios and processing recoveries.
In order to meet this requirement, SRK considers that major portions of the deposits on the West
Lombok Project may be amenable for open pit extraction. In order to determine the quantities of
material offering “reasonable prospects for economic extraction” by an open pit, SRK used a pit
optimizer and reasonable mining assumptions to evaluate the proportions of the block model
(Inferred blocks) that could be “reasonably expected” to be mined from an open pit.
Open pit parameters were selected based on experience and benchmarking against similar projects
(Table 13.12). The reader is cautioned that the results from the pit optimization are used solely for
the purpose of testing the “reasonable prospects for economic extraction” by an open pit and do not
represent an attempt to estimate mineral reserves. There are no mineral reserves on the West
Lombok Project. The results are used as a guide to assist in the preparation of a mineral resource
statement and to select an appropriate resource reporting cut-off grade.
Table 13.12: Assumptions considered for conceptual open pit optimization
Parameter
Value
Unit
Gold Price
1,500
US$ per ounce
3.56
US$ per pound
25
US$ per ounce
Copper Price
Silver Price
Exchange Rate
1:1
$US/$CDN
Mining Cost
1.50
US$ per tonne mined
Processing
5.00
US$ per tonne of feed
General and Administrative
1.00
US$ per tonne of feed
Overall Pit Slope
50
Degrees
Gold Process Recovery
76
Percent
Copper Recovery
86
Percent
0
Percent
Silver Recovery
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SRK considers that the blocks located within the conceptual pit envelope satisfy the “reasonable
prospects for economic extraction” and can be reported as a mineral resource. Tables 13.13 to
Table 13.16 summarise the mineral resources for the West Lombok Project.
Table 13.13: Mineral Resource Statement*, Raja Deposit, West Lombok Project, Indonesia, SRK
Consulting, July 13, 2013
Classification
Inferred
Tonnage
Grade
Grade
(tonnes)
Cap Au (g/t)
Ag (g/t)
3,898,000
2.63
14
Contained
Metal
Gold Ounces
329,700
Contained Metal
Silver Ounces
1,821,000
* Reported at a cut-off grade of 0.5 g/t gold equivalent inside a Whittle pit shell. Mineral resources are not mineral
reserves and do not have demonstrated economic viability. All numbers have been rounded to reflect the relative
accuracy of the estimates. Gold equivalent is calculated using US$1500 per ounce of gold and US$25 per ounce of silver
and 100% metal recoveries for both metals Gold was capped at 30 g/t. Silver grades were not capped.
Table 13.14: Mineral Resource Statement*, Bising Deposit, West Lombok Project, Indonesia, SRK
Classification
Inferred
Tonnage
Grade
Contained Metal
(tonnes)
Cap Au (g/t)
Gold Ounces
6,908,000
0.88
195,550
* Reported at a cut-off grade of 0.5 g/t gold inside a Whittle pit shell. Mineral resources are not mineral reserves and do
not have demonstrated economic viability. All numbers have been rounded to reflect the relative accuracy of the
estimates. Gold was capped at 5 g/t.
Table 13.15: Mineral Resource Statement*, Tibu Serai Deposit, West Lombok Project, Indonesia, SRK
Classification
Inferred
Tonnage
Grade
Contained Metal
(tonnes)
Cap Au (g/t)
Gold Ounces
977,000
1.36
42,570
* Reported at a cut-off grade of 0.5 g/t gold inside a Whittle pit shell. Mineral resources are not mineral reserves and do
not have demonstrated economic viability. All numbers have been rounded to reflect the relative accuracy of the
estimates. Gold was capped at 5 g/t.
Table 13.16: Mineral Resource Statement*, Selodong Deposit, West Lombok Project, Indonesia, SRK
Consulting, July 13, 2013.
Classification
Inferred
Tonnage
Grade
Grade
(tonnes)
Cap Au (g/t)
Cu (%)
66,750,000
0.43
0.27
Contained
Metal
Gold Ounces
922,800
Contained Metal
Copper Pounds
397,324,000
* Reported at a cut-off grade of 0.25% copper equivalent inside a Whittle pit shell. Mineral resources are not mineral
reserves and do not have demonstrated economic viability. All numbers have been rounded to reflect the relative
accuracy of the estimates. Gold was capped at 4 g/t. Copper equivalent is calculated using US$1500 per ounce of gold
and US$3.56 per pound of copper and 100% metal recoveries for both metals.
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13.12 Grade Sensitivity Analysis
The mineral resources of the West Lombok Project are very sensitive to the selection of the reporting
cut-off grade. This is especially true in the Bising deposit. To illustrate this sensitivity, the global
model quantities and grade estimates are presented in Tables 13.18 to Table 13.21 at different cutoff grades. The reader is cautioned that the figures presented in this table should not be
misconstrued with a Mineral Resource Statement. The figures are only presented to show the
sensitivity of the block model estimates to the selection of cut-off grade. Figures 13.17 to Figure
13.20 present this sensitivity as grade tonnage curves. The steep decline in tonnage with increasing
cut-off grade is indicative of the high susceptibility of the deposit to cut-off selection.
Table 13.17: Global block model quantities and grade estimates*, Raja Deposit, West Lombok Project,
at various cut-off grades
Cut-off Grade
Quantity
Grade
Metal Content
Gold (g/t)
(tonnes)
Gold (g/t)
Gold (ounces)
5.0
415,650
5.89
78,700
4.0
527,000
5.57
94,400
3.0
1,192,500
4.39
168,200
2.0
2,605,000
3.30
276,300
1.5
3,182,000
3.02
308,700
1.0
3,674,600
2.79
329,000
0.5
4,028,400
2.61
338,000
*The reader is cautioned that the figures in this table should not be misconstrued with a Mineral Resource Statement. The
figures are only presented to show the sensitivity of the block model estimates to the selection of cut-off grade.
Table 13.18: Global block model quantities and grade estimates*, Bising Deposit, West Lombok Project,
at various cut-off grades
Cut-off Grade
Gold (g/t)
2.0
1.5
1.0
0.5
Quantity
Grade
Metal Content
(tonnes)
Gold (g/t)
Gold (ounces)
101,600
2.26
7,370
534,000
1.78
30,600
1,947,000
1.37
86,000
6,908,000
0.88
195,550
Table 13.19: Global block model quantities and grade estimates*, Tibu Serai Deposit, West Lombok
Project, at various cut-off grades
Cut-off Grade
Quantity
Grade
Metal Content
Gold (g/t)
(tonnes)
Gold (g/t)
Gold (ounces)
2.0
183,200
2.28
13,400
1.5
407,000
1.99
26,000
1.0
614,000
1.74
34,400
0.5
977,000
1.36
42,570
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Table 13.20: Global block model quantities and grade estimates*, Selodong Deposit, West Lombok
Project, at various cut-off grades
Cut-off Grade
Quantity
Copper Eq (%)
(tonnes)
Grade
Metal
Grade
Metal
Gold (ounces)
Copper
(%)
Copper (pounds)
133,000
0.58
51,851,000
1.0
4,055,000
Gold
(g/t)
1.02
0.50
27,530,000
0.63
557,600
0.37
224,565,000
0.40
40,856,000
0.54
709,300
0.33
297,238,000
0.30
58,508,000
0.46
865,300
0.28
361,166,000
0.25
66,750,000
0.43
922,800
0.27
397,328,000
0.20
73,960,000
0.40
951,200
0.25
407,635,000
0.10
81,855,000
0.38
1,000,000
0.24
433,102,000
4,500
7
4,000
Tonnes
Gold (g/t)
6
3,500
Tonnes (000)
2,500
4
2,000
3
1,500
Average Grade Au (g/t)
5
3,000
2
1,000
1
500
0
0
0
1
2
3
4
5
6
Cut-off grade Au (g/t)
Figure 13.17: Grade tonnage curve for the Raja Deposit, West Lombok Project
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8,000
2.5
7,000
Tonnes
2
6,000
Tonnes (000)
5,000
1.5
4,000
1
3,000
Average grade Au (g/t)
Gold (g/t)
2,000
0.5
1,000
0
0
0
0.5
1
1.5
2
2.5
Figure 13.18: Grade tonnage curve for the Bising Deposit, West Lombok Project
1,200
2.5
1,000
2
Tonnes (000)
Gold (g/t)
1.5
600
1
Average grae Au (g/t)
Tonnes
800
400
0.5
200
0
0
0
0.5
1
1.5
2
2.5
Figure 13.19: Grade tonnage curve for the Tibu Serai Deposit, West Lombok Project
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90,000
1.2
80,000
Tonnes
1
Gold (g/t)
70,000
Tonnes (000)
0.8
50,000
0.6
40,000
30,000
0.4
Average grade Au (g/t) Cu (%)
Copper (%)
60,000
20,000
0.2
10,000
0
0
0
0.2
0.4
0.6
Cut-off grade Cu Eq (%)
0.8
1
1.2
Figure 13.20: Grade tonnage curve for the Selodong Deposit, West Lombok Project
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14 Adjacent Properties
This section is taken from Campbell, 2010. The author of the report has been unable to verify the
information contained in this section and the information presented in this section of the report is not
necessarily indicative of the mineralisation on the West Lombok Project that is the subject of this
technical report.
Adjoining the western property boundary is a 5,000 hectare concession held by PT. Bintang
Sumberdaya under a IUP exploration license. Field inspections in this locality reported intense
porphyry style alteration over a width of 50+ m, with at least 850 m of strike length. Secondary
copper oxides (malachite, azurite and lesser chrysocolla) are prolific in the western part of the area
and are currently being mined by local artesian miners. Host rocks comprise magnetite-epidotesilicic altered diorite porphyry intrusives, with some later phyllic overprinting. Strong northwest
structural control of mineralisation is evidenced by intense fracturing, fault slickensides and sharp
contact boundaries on porphyry stockwork veining. Overlying and peripheral to the stockwork zone
are intermixed argillic and advanced argillic assemblages, hosting limited or no stockworking.
A single grab sample of porphyry veining material being mined by local artesian miners assayed
0.62 g/t Au and 0.36% Cu.
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15 Other Relevant Data and Information
There is no other relevant data available about the West Lombok Project.
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16 Interpretation and Conclusions
The West Lombok Property hosts an early stage copper gold project situated on the west side of
Lombok Island in Indonesia and covering a northwest trending 13 km by 7 km wide mineralised
structural corridor.
Mineralisation on the property has been separated into three main prospect areas: from north to
south, the Pelangan, the Mencanggah and the Selodong Prospects. Each prospect consists of
several mineral targets or showings; many of which have been the subject of exploration by diamond
drilling that host both porphyry copper-gold and epithermal gold mineralisation.
Work carried out by Southern Arc has included geophysical and geochemical surveys as well as
geological mapping and diamond drilling. In total, Southern Arc has drilled 201 holes totalling
47,750 m. The drilling programs resulted in the identification of inferred mineral resources for the
Raja, Bising, Tibu Serai and Selodong Deposits as presented in Section 13 of this report.
The mineral resources at West Lombok have been classified as Inferred Mineral Resources by SRK.
An Inferred Mineral Resource has the lowest level of confidence as defined by CIM (Figure 16.1).
For this reason, a certain risk is associated with the tonnage and grade estimates presented in this
report. Additional drilling is required to upgrade the mineral resource class from Inferred to Indicated
or Measured.
Readers are cautioned that there are no guarantees that additional drilling will result in additional
mineralisation being defined or that the classification will improve if the drilling is not successful in
better defining the geological knowledge of the deposits. Furthermore, additional drilling may change
the geological interpretation of the deposit which could result in a reduction or increase in the deposit
size.
SRK is not aware of any other significant risks and uncertainties that could be expected to affect the
reliability or confidence in the early stage exploration information discussed herein.
Figure 16.1: Classification of mineral resources and mineral reserves
GA / MN
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Page 104
All deposits identified so far are still open at depth and along strike and further drilling could discover
additional mineralisation, especially at Raja where the possibility of finding mineralisation that could
be amenable to underground mining seems very good.
The West Lombok Property contains several other mineral occurrences and only a small portion of
the favourable ground has been drill tested to date. SRK is of the opinion that the untested mineral
occurrences represent a significant opportunity to locate additional mineralisation.
GA / MN
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Page 105
17 Recommendations
SRK recommends that Southern Arc continue to explore the West Lombok Property. SRK
recommends a two phase exploration program (Phase 3A and Phase 3B) including 4,010 m of
drilling at Raja and Bising. Phase 3B is contingent on receiving positive results from phase 3A of
exploration.
17.1 Pelangan
SRK recommends that Southern Arc drills an additional eight holes for 1,420 m in the Raja Deposit
as part of the next exploration phase (Phase 3A) (Table 17.1). The drilling is targeted to infill around
previously identified higher grade mineralised shoots and to test the down dip extension of the
mineralised zone and, if results are positive, upgrade the mineral resources from inferred to
indicated (Figure 17.1). If the results of the first drilling phase are encouraging, SRK recommends an
additional five drill holes (Phase 3B) for the Raja Deposit to evaluate the down dip potential of the
mineralisation.
Table 17.1 Proposed drilling for Raja Deposit
PDH No
Section Line
Proposed Depth
Phase
PDH01-A
SE200
165
PDH02-A
SE355
115
3A
3A
PDH03-A
SE290
320
3A
PDH04-A
SE158
135
3A
PDH05-A
SE320
150
3A
PDH06-A
SE595
100
3A
PDH07-A
SE680
260
3A
PDH08-A
SE890
175
3A
1,420
3A
Total A =
GA / MN
PDH01-B
SE225
165
PDH02-B
SE284
165
3B
3B
PDH03-B
SE290
350
3B
PDH04-B
SE705
325
3B
PDH05-B
SE890
200
3B
Total B =
1,205
3B
Total A+B =
2,625
3A + 3B
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Page 106
Figure 17.1 Planview of proposed Phase 3A and 3B drilling for Raja Deposit
GA / MN
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Page 107
17.2 Mencanggah
SRK recommends an additional eight drill holes for the Bising deposit (Phase 3A) to help upgrade
the resource classification from inferred to Indicated. The drill holes are mainly designed to infill
between existing drill holes to help confirm the continuity of grades between drill holes within the
mineralised unit (Table 17.2).
Table 17.2 Proposed Phase 3 drill holes for Bising Deposit
PDH NO
SECTION LINE
Proposed Depth (m)
Phase
PDH01-A
ESE-652
170
3
PDH02-A
ESE-565
170
3
PDH03-A
ESE-904
165
3
PDH04-A
ESE-852
145
3
PDH05-A
ESE-800
180
3
PDH06-A
ESE-747
145
3
PDH07-A
ESE-695
225
3
PDH08-A
ESE-422
185
3
1,385
3
Total Phase 1 =
No additional drilling is recommended at this stage for the Selodong Deposit. SRK recommends that
Southern Arc continues geological mapping in the Tibu Serai and Selodong areas and that drill core
samples be taken from the Raja and Bising deposits for preliminary metallurgical testing and
characterization. Approximately 4,000 m of exploration drilling is recommended to test other undrilled
targets at Mencanggah including Tibu Serai, Mahoni and several other localities with highly
anomalous surface geochemistry. Drill testing is also recommended for the Lala structure on the
Palagan Prospect area where highly anomalous surface values are located 350 m east of Raja along
an 800 m parallel trend.
Table 17.3 summarises the costs of the recommended exploration program.
Table 17.3 Estimated cost for the exploration program proposed for the West Lombok Project
Description
Units
Total Costs (CDN$)
2,805 m
$561,000
Phase 3A Program
Diamond drilling (all inclusive)
Geological mapping
Metallurgical program
30 days
$15,000
4 samples
$120,000
Sub-total Phase 3A
$696,000
10% contingency
$69,600
Total Phase 3A Program
$765,600
Phase 3B Program
Diamond drilling (all inclusive)
1,205 m
$241,000
Exploration Drilling
4,000 m
$800,000
Preliminary Economic Assessment
GA / MN
$180,000
Sub Total Phase 3B
$1,221,000
Total Phase 3A & 3B
$1,986,600
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Page 108
SRK is unaware of any significant factors and risks that may affect access, title, or the right or ability
to perform the exploration work recommended for the West Lombok Project.
GA / MN
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Page 109
18 Acronyms and Abbreviations
Distance
Other
µm
mm
cm
m
km
”
in
‟
ft
Area
micron (micrometre)
millimetre
centimetre
metre
kilometre
inch
inch
foot
foot
m2
km2
ac
ha
Volume
square metre
square km
acre
hectare
l
m3
ft3
usg
lcm
bcm
Mbcm
Mass
litre
cubic metre
cubic foot
US gallon
loose cubic metre
bank cubic metre
million bcm
kg
g
t
Kt
lb
Mt
MPa
Pressure
kilogram
gram
metric tonne
kilotonne
pound
megatonne
megapascal
psi
pounds per square inch
Pa
pascal
kPa
kilopascal
mPa
megapascal
Elements and Compounds
Au
gold
Ag
silver
Cu
copper
Fe
iron
S
sulphur
CN
cyanide
NaCN
sodium cyanide
Conversion Factors
1 tonne
1 oz
GA / MN
o
C
F
Btu
cfm
elev
masl
hp
hr
kW
kWh
M
mph
ppb
ppm
s
s.g.
usgpm
V
W
Ω
A
tph
tpd
mtpa
Ø
Acronyms
o
BLEG
CH
CIM
CoW
CSAMT
DGPS
GPS
IP
IUP
MSB
NI 43-101
NSR
SRK
RC
RF
SIC
XRD
degree Celsius
degree Fahrenheit
British Thermal Unit
cubic feet per minute
elevation above sea level
m above sea level
horsepower
hour
kilowatt
kilowatt hour
Million
miles per hour
parts per billion
parts per million
second
specific gravity
US gallon per minute
volt
watt
ohm
ampere
tonnes per hour
tonnes per day
million tonnes per annum
diam
rock channel sample
Canadian Institute of Mining
Contract of Work
Digital Global Positioning System
Global Positioning System
induced polarization
Indonesian mining business license
mineralised structural breccia
National Instrument 43-101
net smelter return
rock chip sample
rock float sample
Selodong Intrusive Complex
1 tonne
1 oz
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Page 110
19 References
Allen, J.M., 1990. Petrology of Quartz Vein Samples from the Pelangan Prospect, South Lombok,
Indonesia: A Polymetallic Au-Ag-Cu-Te-Se-As-Sb-Pb-Bi Deposit. CMS Petrology Report No. 353.
Campbell, H.J., 2010. Technical report on Exploration activities (2005-2010) at the West Lombok
Project of southern Arc Minerals Inc., Lombok Island, West Nusa Tenggara Province, Indonesia,
110p.
Clode, C.H. and Pratama, B., 2002. Application of PIMA Technology in Defining Gold and Copper
Exploration Targets in Island Arc Settings: A Case Study from Sumbawa and Lombok, Indonesia.
Proceedings of the 31st Annual Convention of Indonesian Association of Geologists, Vol. 1, pp. 954967.
Garwin, S., 2002. The Geologic Setting of Intrusion – Related Hydrothermal Systems near the Batu
Hijau Porphyry Copper-Gold Deposit, Sumbawa, Indonesia, Society of Economic Geologist –
Special Publication 9, Chapter 15, p333-366.
Hamilton, W.B., 1979. Tectonics of the Indonesian region. US Geological Survey Professional
Paper, 1078, 345pp.
Norton Rose Fulbright, 2012. New Indonesian mining regulations. Web Site Publication:
http://www.nortonrosefulbright.com/knowledge/publications/64444/new-indonesian-miningregulations, March 2012.
Pieters, P.J., 2004. Remote Image Study of the Indotan Inc SIPP area, South Lombok, Nusa
Tenggara. Peter Pieters Consulting.
Rontek, R.B., 1985 Pemboran Inti Endapan Bijih Timah Hitam P. Lombok Pada K.P Eksplorasi DU
59/NUSBAR. Pusat Pengembangan Teknologi Mineral, Direktorat Jenderal Pertambangan Umum.
Rowe, A.J., 2008. Surface Evaluation and First Phase Drilling at the Selodong Prospect, December
2008.
Rowe, A.J., 2008. Surface Evaluation of the Mencanggah Prospect, December 2008.
Van Bemmelen, R.W., 1949. The Geology of Indonesia. Vol. 1A. General Geology. Government
Printing Office, Martinus Nijhoff, The Hague, Netherlands.
White, P.J., 1998. Petrology of 40 samples from Pelangan Prospect, Lombok for PT. Jasa Prima
Raya. Sinclair Knight Merz Petrology Report No. M1180
GA / MN
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Page 111
20 Date and Signature Page
This technical report was written by the following “Qualified Persons” and contributing authors. The
effective date of this technical report is July 11, 2013
Qualified Person
Dr. Gilles Arseneau, P. Geo.
Signature
Date
“original signed”
August 23, 2013
Reviewed by
Original signed
Marek Nowak, P.Eng.
Project Reviewer
All data used as source material plus the text, tables, figures, and attachments of this document
have been reviewed and prepared in accordance with generally accepted professional engineering
and environmental practices.
GA / MN
Lombok_2CS032.000_NI 43-101_GA_MN_20130822
August 23, 2013
Suite 2200 - 1066 West Hastings Street
Vancouver, BC V6E 3X2
T: +1.604.681.4196
F: +1.604.687.5532
[email protected]
www.srk.com
CERTIFICATE OF QUALIFIED PERSON
To accompany the report entitled: Technical Report for the West Lombok Gold and Copper Project,
Lombok, Indonesia, August 23, 2013.
I, Dr. Gilles Arseneau, residing in North Vancouver do hereby certify that:
1) I am an Associate Consultant with the firm of SRK Consulting (Canada) Inc. (“SRK”) with an office at
Suite 2200, 1066 West Hastings Street, Vancouver, British Columbia, Canada;
2) I graduated with B.Sc. in Geology from the University of New Brunswick, 1979; a M.Sc. in Geology from
the University of Western Ontario, 1984 and a Ph.D. in Geology from the Colorado School of Mines,
1995. I have been involved in mining since 1979 and have practised my profession continuously since
1995. I have been involved with exploration projects and consulting covering a wide range of mineral
commodities in Africa, South America North America and Asia including deposits similar to West Lombok
Project in North and south America. I have over ten years of experience in resource estimation using
Gemcom software;
3) I am a Professional Geoscientist registered with the Association of Professional Engineers and
Geoscientists of British Columbia;
4) I have personally inspected the subject project Lombok on December 6 through 9, 2011 and on April 23
to 26, 2013;
5) I have read the definition of “qualified person” set out in National Instrument 43-101 and certify that by
virtue of my education, affiliation to a professional association and past relevant work experience, I fulfill
the requirements to be a “qualified person” for the purposes of National Instrument 43-101 and this
technical report has been prepared in compliance with National Instrument 43-101 and Form 43-101F1;
6) I, as a qualified person, I am independent of the issuer as defined in Section 1.5 of National Instrument
43-101;
7) I am the author of this report and responsible for all sections of the report and accept professional
responsibility for all sections of this technical report;
8) I have had no prior involvement with the subject property;
9) I have read National Instrument 43-101 and confirm that this technical report has been prepared in
compliance therewith;
10) SRK Consulting (Canada) Inc. was retained by Southern Arc Minerals Inc. to prepare a technical report
and mineral resource estimate for the West Lombok project. The preceding report is based on a site visit,
a review of project files and discussions with Southern Arc Minerals Inc. personnel;
11) I have not received, nor do I expect to receive, any interest, directly or indirectly, in the West Lombok
Property or securities of Southern Arc Minerals Inc.; and
12) That, as of the date of this certificate, to the best of my knowledge, information and belief, this technical
report contains all scientific and technical information that is required to be disclosed to make the
technical report not misleading.
Vancouver, B.C.
August 23, 2013
[“signed and sealed”]
Dr. Gilles Arseneau, P. Geo.
Associate Consultant, SRK Canada
APPENDIX A
Mineral Tenure Information
PENGUMUMAN KE‐DUA REKONSILIASI IUP
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
1
ANEKA TAMBANG TBK, PT
TAPANULI UTARA
214/21/KPPT/TAHUN 2010
12.580,00
EKSPLORASI
EMAS
25/Feb/10
2
TAPANULI UTARA
215/21/KPPT/Tahun 2010
20.680,00
EKSPLORASI
EMAS DMP
25/Feb/10
3
TAPANULI UTARA
216/21/KPPT/ Tahun 2010
6.492,00
EKSPLORASI
EMAS
17/Jun/09
4
ANEKA TAMBANG , PT
540/335/Tamben/2009
8.176,00
EKSPLORASI
LOGAM DASAR
30/Dec/09
5
X DAREH, CV
DHARMASRAYA
189.1/134/KPTS‐BUP/2009
198,00
EKSPLORASI
BATUBARA
3/Jul/2009
6
BARA MITRA SEJAHTERA, PT
INDRAGIRI HULU
13/IUP/545‐02/V2010
4.327,00
EKSPLORASI
BATUBARA
28/Apr/2010
7
SELUMA PRIMA COAL, PT
SAROLANGUN
37 Tahun 2009
2.000,00 OPERASI PRODUKSI
BATUBARA
8/Jun/2009
8
BANGUN WAHANA LINGKUNGAN LESTARI, PT
BATANG HARI
503/59/IUPEksplorasi/BPTSP/2010
1.945,00
EKSPLORASI
BATUBARA
2/Jul/2010
9
BATANG HARI
1.945,00
EKSPLORASI
BATUBARA
2/Jul/2010
10
BATANG HARI
503/60/IUPEKSPLORASI/BPTSP/2010
1.945,00
EKSPLORASI
BATUBARA
2/Jul/2010
11
BATANG HARI
1.625,00
EKSPLORASI
BATUBARA
2/Jul/2010
12
BATANG HARI
503/54/IUPksplorasi/BPTSP/2010
1.625,00
EKSPLORASI
BATUBARA
2/Jul/2010
13
BUMI BARA MAKMUR MANDIRI, PT
BATANG HARI
1.945,00
EKSPLORASI
BATUBARA
2/Jul/2010
14
BATANG HARI
2.000,00
EKSPLORASI
BATUBARA
2/Jul/2010
15
BATANG HARI
1.945,00
EKSPLORASI
BATUBARA
2/Jul/2010
16
BUMI MAKMUR SEJATI, PT
BATANG HARI
1.880,00
EKSPLORASI
BATUBARA
10/Nov/2010
17
BUMI MAKMUR SEJATI, PT
BATANG HARI
1.800,00
EKSPLORASI
BATUBARA
28/Sep/2010
18
EKSANUSA, PT
BATANG HARI
2.000,00
EKSPLORASI
BATUBARA
14/Oct/2010
19
GLOBALINDO ALAM LESTARI, PT
BATANG HARI
580,00
EKSPLORASI
BATUBARA
13/Dec/2010
20
KASONGAN MINING MILLS, PT
BATANG HARI
2.000,00
EKSPLORASI
BATUBARA
22/Nov/2010
21
KURNIA ALAM INVESTAMA, PT
BATANG HARI
1.945,00
EKSPLORASI
BATUBARA
2/Jul/2010
KARO
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
22
KURNIA ALAM INVESTAMA, PT
BATANG HARI
2.000,00
EKSPLORASI
BATUBARA
2/Jul/2010
23
MUARO AIR MAS, PT
BATANG HARI
1.800,00
EKSPLORASI
BATUBARA
28/Sep/2010
24
NAN RIANG, PT
BATANG HARI
2.000,00
EKSPLORASI
BATUBARA
10/Nov/2010
25
ARGO MAKMUR PT
MUARO JAMBI
71 TAHUN 2010
954,00 OPERASI PRODUKSI
BATUBARA
6/Apr/2010
26
BUMI BORNEO INTI, PT
MUARO JAMBI
94 TAHUN 2010
BATUBARA
20/Apr/2010
27
GEA LESTARI, PT
MUARO JAMBI
08 TAHUN 2010
BATUBARA
11/Jan/2010
28
MUARO JAMBI
14 TAHUN 2010
BATUBARA
9/Feb/2010
29
ITIKURIH HASTARI, PT
MUARO JAMBI
102 TAHUN 2010
1.000,00
EKSPLORASI
BATUBARA
20/Apr/2010
30
ITIKURIH HASTARI, PT
MUARO JAMBI
103 TAHUN 2010
1.800,00
EKSPLORASI
BATUBARA
20/Apr/2010
31
SINAR MEGA SELARAS, PT
MUARO JAMBI
08 A TAHUN 2010
6.258,00
EKSPLORASI
BATUBARA
11/Jan/2010
32
SUMBER LAUT PERKASA, CV
MUARO JAMBI
91 TAHUN 2010
1.500,00
EKSPLORASI
BATUBARA
20/Apr/2010
33
SUMBER LAUT PERKASA, CV
MUARO JAMBI
92 TAHUN 2010
2.000,00
EKSPLORASI
BATUBARA
20/Apr/2010
34
TIRAMANA, PT
MUARO JAMBI
97 TAHUN 2010
2.527,00
EKSPLORASI
BATUBARA
20/Apr/2010
35
TIRAMANA, PT
MUARO JAMBI
98 TAHUN 2010
2.000,00
EKSPLORASI
BATUBARA
20/Apr/2010
36
TIRAMANA, PT
MUARO JAMBI
99 TAHUN 2010
2.600,00
EKSPLORASI
BATUBARA
20/Apr/2010
37
TRIADAT QUANTUM, PT
MUARO JAMBI
93 TAHUN 2010
BATUBARA
20/Apr/2010
38
UTOMO KOSTRINDO, PT
MUARO JAMBI
07 A TAHUN 2010
6.278,00
EKSPLORASI
BATUBARA
11/Jan/2010
39
BARA HARMONIS BATANG ASAM, PT
BUNGO
247/DESDM TAHUN 2010
BATUBARA
23/Apr/2010
40
BUNGO BARA UTAMA, PT
BUNGO
BATUBARA
9/Jul/2009
41
BUNGO BARA UTAMA, PT
BUNGO
BATUBARA
23/Apr/2010
42
KARYA CEMERLANG PERSADA, PT
BUNGO
BATUBARA
22/Jul/2009
43
KUANSING INTI MAKMUR 2, PT
BUNGO
BATUBARA
23/Apr/2010
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
BUNGO
NO DAN TAHUN SK
44
TANJUNGBELIT BARA UTAMA, PT
45
ANEKA TAMBANG, TBK, PT
TEBO
138/ESDM/2010
46
ANUGERAH ALAM ANDALAS, PT
TEBO
47
48
TAHAPAN KEGIATAN
TANGGAL SK
23/Apr/2010
EKSPLORASI
BATUBARA
10/Mar/2010
196/ESDM/2010
BATUBARA
12/Apr/2010
TEBO
162/ESDM/2010
BATUBARA
11/Mar/2010
HASWI KENCANA INDAH, PT
TEBO
26/ESDM/2010
BATUBARA
8/Feb/2010
49
HASWI KENCANA INDAH, PT
TEBO
225.B/ESDM/2011
EKSPLORASI
BATUBARA
31/May/2011
50
BATUBARA BUKIT KENDI. PT
PROV. SUMATERA SELATAN
305/KPTS/DISTAMBEN/2010
BATUBARA
30/Apr/2010
51
BUKIT ASAM(PERSERO) TBK. PT
PROV. SUMATERA SELATAN
BATUBARA
30/Apr/2010
52
BUANA MINERA HARVEST, PT
04/K/IUP‐I/XXVII/2009
9.579,00
EKSPLORASI
BATUBARA
27/Sep/2009
53
TAMBANG SEJAHTERA BERSAMA, PT
5.000,00
EKSPLORASI
BATUBARA
15/Aug/2009
54
ADI COAL RESOURCES, PT
MUSI BANYUASIN
1106 Tahun 2009
5.000,00
EKSPLORASI
BATUBARA
11/Aug/2009
55
ANUGERAH BARA MUSTIKA, PT
MUSI BANYUASIN
1280 Tahun 2009
2.994,00
EKSPLORASI
BATUBARA
11/Sep/2009
56
ARTHA INDO ENERGI, PT
MUSI BANYUASIN
1265 Tahun 2009
1.602,00
EKSPLORASI
BATUBARA
11/Sep/2009
57
BUANA BARA EKAPRATAMA, PT
MUSI BANYUASIN
1104 Tahun 2009
BATUBARA
9/Jul/2009
58
BUANA INTI CITRAPRIMA, PT
MUSI BANYUASIN
1103 Tahun 2009
BATUBARA
11/Aug/2009
59
BUMI ANDALAS PERKASA, PT
MUSI BANYUASIN
1108 Tahun 2009
3.493,00
EKSPLORASI
BATUBARA
11/Aug/2009
60
CITRA ALAM CAHAYA, PT
MUSI BANYUASIN
1248 Tahun 2009
1.073,00
EKSPLORASI
BATUBARA
11/Sep/2009
61
CITRA ALAM CAHAYA, PT
MUSI BANYUASIN
1249 Tahun 2009
5.541,00
EKSPLORASI
BATUBARA
11/Sep/2009
62
DIKA KARYA LINTAS NUSA, PT
MUSI BANYUASIN
1089 Tahun 2009
5.422,00
EKSPLORASI
BATUBARA
11/Aug/2009
63
KARYA PERINTIS SEJATI, PT
MUSI BANYUASIN
1276 Tahun 2009
5.531,00
EKSPLORASI
BATUBARA
11/Sep/2009
64
MAKARYA EKAGUNA, PT
MUSI BANYUASIN
1257 Tahun 2009
BATUBARA
11/Sep/2009
65
MANOLO, PT
MUSI BANYUASIN
1113 Tahun 2009
BATUBARA
11/Aug/2009
MUSI RAWAS
KOMODITAS
BATUBARA
OGAN KOMERING ULU
LUAS WILAYAH (HA)
4.959,00
1.289,00
398,50
EKSPLORASI
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
66
MASINDO ARTHA RESOURCES, PT
MUSI BANYUASIN
1267 TAHUN 2009
4.400,00
EKSPLORASI
BATUBARA
11/Sep/2009
67
MASINDO ARTHA RESOURCES, PT
MUSI BANYUASIN
1268 TAHUN 2009
5.475,00
EKSPLORASI
BATUBARA
11/Sep/2009
68
NUSA INDAH PERMAI, PT
MUSI BANYUASIN
1255 Tahun 2009
BATUBARA
11/Sep/2009
69
PASIFIC GLOBAL RESOURCES, PT
MUSI BANYUASIN
1260 Tahun 2009
3.360,00
EKSPLORASI
BATUBARA
11/Sep/2009
70
PERSADA MAKMUR JAYA, PT
MUSI BANYUASIN
1099 Tahun 2009
2.500,00
EKSPLORASI
BATUBARA
11/Aug/2009
71
RACHMAT KELANTAN SAKTI, PT
MUSI BANYUASIN
1388 Tahun 2009
2.000,00
EKSPLORASI
BATUBARA
15/Oct/2009
72
RIMBA SUBUR LESTARI, PT
MUSI BANYUASIN
1253 Tahun 2009
BATUBARA
11/Sep/2009
73
SAKTI GLOBAL PERSADA, PT
MUSI BANYUASIN
1261 Tahun 2009
4.940,00
EKSPLORASI
BATUBARA
11/Sep/2009
74
SUAR HARAPAN BANGSA, PT
MUSI BANYUASIN
1277 Tahun 2009
4.978,00
EKSPLORASI
BATUBARA
11/Sep/2009
75
SWADAYA HUTANI ALAM, PT
MUSI BANYUASIN
1254 Tahun 2009
BATUBARA
11/Sep/2009
76
TALANG UBI COAL, PT
MUSI BANYUASIN
1271 Tahun 2009
7.936,00
EKSPLORASI
BATUBARA
11/Sep/2009
77
MBH MINING RESOURCES,PT
BANYUASIN
598.a Tahun 2009
11.380,00
EKSPLORASI
BATUBARA
12/Aug/2009
78
MITRA BISNIS HARVEST, PT
BANYUASIN
515 Tahun 2009
18.000,00
EKSPLORASI
BATUBARA
14/Jul/2009
79
INDOMAS MINERAL UTAMA, PT
OGAN KOMERING ULU SELATAN
20/KPTS/Tamben/2009
7.533,00
EKSPLORASI
BIJIH BESI DMP
10/Dec/2009
80
INDOMAS MINERAL UTAMA, PT
002/KPTS/TAMBEN/2011
5.706,00
EKSPLORASI
BIJIH BESI DMP
12/May/2011
81
SEMEN BATURAJA, PT
1.577,00
EKSPLORASI
BATU KAPUR
19/Jul/2010
82
LAHAT PULAU PINANG BARA JAYA, PT
540/75/KEP/TAMBEN/2010
2.029,00
EKSPLORASI
BATUBARA
11/Mar/2010
83
ANEKA TAMBANG, PT
BENGKULU UTARA
224 TAHUN 2011
4.738,00
EKSPLORASI
EMAS DMP
30/Apr/2011
84
ANEKA TAMBANG, PT
BENGKULU UTARA
226 TAHUN 2011
3.945,00
EKSPLORASI
EMAS DMP
30/Apr/2011
85
TIUH MAS, PT
LAMPUNG TENGAH
540/008/IUP/D.17/II/2010
1.028,00
EKSPLORASI
EMAS DMP
8/Jul/2010
86
TIMAH (PERSERO) TBK, PT
BANGKA
188.45/420/Tamben/2011; 10 Mei 2011
TIMAH
10/May/2011
87
BANGKA
188.45/461/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
EMPAT LAWANG
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
88
BANGKA
188.45/466/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
89
BANGKA
188.45/467/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
90
BANGKA
188.45/464/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
91
BANGKA
188.45/462/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
92
BANGKA
188.45/465/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
93
BANGKA
188.45/463/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
94
BANGKA
188.45/460/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
95
BANGKA
188.45/452/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
96
BANGKA
188.45/451/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
97
BANGKA
188.45/449/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
98
BANGKA
188.45/453/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
99
BANGKA
188.45/450/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
100 TIMAH (PERSERO) TBK, PT
BANGKA
188.45/457/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
101 TIMAH (PERSERO) TBK, PT
BANGKA
188.45/454/Tamben/2010; 27 April 2010
TIMAH
27/Apr/2010
102 PAMIN KANAAN, PT
BELITUNG
017/IUP‐OP/DPE/2010
BAUKSIT
17/Mar/2010
103 TIMAH.PT(PERSERO) TBK
BELITUNG
TIMAH PUTIH
21/Jul/2010
BELITUNG
109/iup‐op/dpe/2010
TIMAH PUTIH
10/Mar/2003
BELITUNG
TIMAH PUTIH
10/Mar/2003
106 ALAM DAMAI MAKMUR, PT
BANGKA SELATAN
188.45/95.A/DPE/2010
1.019,00
EKSPLORASI
BIJIH TIMAH
25/Feb/2010
107 ARTHA PRIMA NUSA JAYA, PT
BANGKA SELATAN
188.45/49.B/DPE/2010
1.135,00
EKSPLORASI
BIJIH TIMAH
10/Feb/2010
108 ARTHA PRIMA NUSA JAYA, PT
BANGKA SELATAN
188.45/228.A/DPE/2010
3.097,00
EKSPLORASI
BIJIH TIMAH
30/Apr/2010
109 BANGKA PRIMA TIN, PT
BANGKA SELATAN
188.45/57/DPE/2010
498,60
EKSPLORASI
BIJIH TIMAH
15/Feb/2010
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
BANGKA SELATAN
188.45/56/DPE/2010
11,79
EKSPLORASI
BIJIH TIMAH
15/Feb/2010
BANGKA SELATAN
188.45/54/DPE/2010
58,00
EKSPLORASI
BIJIH TIMAH
15/Feb/2010
BANGKA SELATAN
188.45/53/DPE/2010
102,00
EKSPLORASI
BIJIH TIMAH
15/Feb/2010
BANGKA SELATAN
188.45/52/DPE/2010
29,00
EKSPLORASI
BIJIH TIMAH
15/Feb/2010
BANGKA SELATAN
188.45/51/DPE/2010
23,56
EKSPLORASI
BIJIH TIMAH
15/Feb/2010
115 BANGKA SERUMPUN, PT
BANGKA SELATAN
188.45/312/DPE/2009
4.838,00
EKSPLORASI
BIJIH TIMAH
31/Dec/2009
116 BARANUSA PRATAMA, PT
BANGKA SELATAN
188.45/248/DPE/2009
1.181,00
EKSPLORASI
BIJIH TIMAH
31/Dec/2009
117 BARANUSA PRATAMA, PT
BANGKA SELATAN
188.45/247/DPE/2009
988,00
EKSPLORASI
BIJIH TIMAH
31/Dec/2009
118 BOSTIN INDONESIA, PT
BANGKA SELATAN
188.45/219/DPE/2009
2.401,00
EKSPLORASI
BIJIH TIMAH
23/Dec/2009
119 BOSTIN INDONESIA, PT
BANGKA SELATAN
188.45/220/DPE/2009
3.413,00
EKSPLORASI
BIJIH TIMAH
23/Dec/2009
120 GALIAN RAYA, PT
BANGKA SELATAN
188.45/221/DPE/2009
3.156,33
EKSPLORASI
BIJIH TIMAH
23/Dec/2009
121 MEGA INTI ARDANA, PT
BANGKA SELATAN
188.45/222/DPE/2009
562,40
EKSPLORASI
BIJIH TIMAH
23/Dec/2009
122 TIMAH, PT
BANGKA SELATAN
188.45/221/DPE/2010
BIJIH TIMAH
30/Apr/2010
123 TIMAH, PT
BANGKA SELATAN
188.45/222/DPE/2010
BIJIH TIMAH
30/Apr/2010
124 TIMAH, PT
BANGKA SELATAN
188.45/225/DPE/2010
BIJIH TIMAH
30/Apr/2010
125 TIMAH TBK, PT
BANGKA BARAT
188.45/067/2.03.02/2010
TIMAH
28‐Apr‐2010
126 TIMAH TBK, PT
BANGKA BARAT
188.45/068/2.03.02/2010
11.600 OPERASI PRODUKSI
TIMAH
28‐Apr‐2010
127 TIMAH TBK, PT
BANGKA BARAT
188.45/069/2.03.02/2010
TIMAH
28‐Apr‐2010
128 TIMAH TBK, PT
BANGKA BARAT
188.45/070/2.03.02/2010
TIMAH
28‐Apr‐2010
129 TIMAH TBK, PT
BANGKA BARAT
188.45/071/2.03.02/2010
TIMAH
28‐Apr‐2010
130 TIMAH TBK, PT
BANGKA BARAT
188.45/072/2.03.02/2010
TIMAH
28‐Apr‐2010
131 TIMAH TBK, PT
BANGKA BARAT
188.45/073/2.03.02/2010
TIMAH
28‐Apr‐2010
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
132 TIMAH TBK, PT
BANGKA BARAT
188.45/074/2.03.02/2010
TIMAH
28‐Apr‐2010
133 TIMAH TBK, PT
BANGKA BARAT
188.45/075/2.03.02/2010
TIMAH
28‐Apr‐2010
134 ALLIED MINERALS, PT
BELITUNG TIMUR
503/092/OP‐BL/BPPT/2010
KAOLIN
30/Apr/2010
135 BINTAN MINERAL RESOURCE, PT
BELITUNG TIMUR
503/070/OP‐L/BPPT/2010
HEMATITE
27/Dec/2007
BELITUNG TIMUR
503/071/OP‐L/BPPT/2010
HEMATITE
27/Oct/2007
BELITUNG TIMUR
503/072/OP‐L/BPPT/2010
HEMATITE
12/Jun/2007
138 CAHAYA BARU, CV
BELITUNG TIMUR
503/093/OP‐BL/BPPT/2010
PASIR KUARSA
30/Apr/2010
139 CHANDRA SAKTI, CV
BELITUNG TIMUR
503/027/OP‐BL/BPPT/2010
PASIR KUARSA
16/Feb/2010
140 EKA MAKMUR ALAM SEJAHTERA, PT
BELITUNG TIMUR
503/075/OP‐L/BPPT/2010
HEMATITE
30/Apr/2010
141 HANJAYA BELTIM, CV
BELITUNG TIMUR
503/013/OP‐L/BPPT/2009
TIMAH
15/Dec/2009
142 HANJAYA BELTIM, CV
BELITUNG TIMUR
503/014/OP‐L/BPPT/2009
TIMAH
15/Dec/2009
143 KEDAUNG BAHTERA, PT
BELITUNG TIMUR
503/015/OP‐BL/BPPT/2011
PASIR KWARSA 15/Apr/2011
144 MULTIDINAMIK BINASEJAHTERA, PT
BELITUNG TIMUR
503/009/OP‐BL/BPPT/2009
PASIR KUARSA
15/Dec/2009
145 BERKAH PUGER SEJAHTERA, PT
JEMBER
541.3/056/411/2010
BATU KAPUR
27/Apr/2010
146 DWI JOYO, CV
JEMBER
541.3/024/411/2010
BATU KAPUR
15/Apr/2010
147 GUNUNG KELABAT CITRA ABADI, PT
JEMBER
541.3/043/411/2010
BATU KAPUR
22/Apr/2010
148 IMASCO PASIFIC MINERALS, PT
JEMBER
541.3/027/411/2010
MANGAAN
15/Apr/2010
149 KARTIKA CHANDRA, CV
JEMBER
541.3/035/411/2010
BATU KAPUR
20/Apr/2010
150 KARYA NUSANTARA, CV
JEMBER
541.3/039/411/2010
BATU KAPUR
21/Apr/2010
151 KOPERASI SERBA USAHA GRENDEN
JEMBER
541.3/037/411/2010
BATU KAPUR
20/Apr/2010
152 KSU PUGER RAHAYU
JEMBER
541.3/052/411/2010
BATU KAPUR
26/Apr/2010
153 MADA KARYA, CV
JEMBER
541.3/030/411/2010
BATU KAPUR
16/Apr/2010
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
154 SARI HUTAN, CV
JEMBER
541.3/012/411/2010
BATU KAPUR
12/Apr/2010
155 WIDYA UTAMA, CV
JEMBER
541.3/022/411/2010
BATU KAPUR
14/Apr/2010
156 ANTAM TBK, PT
SUMBAWA
506 Tahun 2010
11.320,00
EKSPLORASI
EMAS
9/Apr/2010
PONTIANAK (Kabupaten)
163 Tahun 2010
5.898,00
EKSPLORASI
BAUKSIT
22/Oct/2010
158 ANEKA TAMBANG, TBK
SANGGAU
02 Tahun 2010
BAUKSIT
4/Jan/2010
159 ANEKA TAMBANG, TBK
LANDAK
20.710,00
EKSPLORASI
BAUKSIT
23/Dec/2009
BATUBARA
28 Des 2009
157 ANEKA TAMBANG TBK, PT 160 JANGKAR PRIMA,PT
544.2/284/HK‐2009
BARITO SELATAN
532 Tahun 2009
161 ADHIDAYA KARYA MANUNGGAL 1, PT
BARITO UTARA
188.45/222/2010
1.285,00
EKSPLORASI
BATUBARA
3/Mar/2010
162 AFIAT WAHYUNI LESTARI, PT
BARITO UTARA
188.45/463/2009
4.514,00
EKSPLORASI
BATUBARA
21/Dec/2009
163 ALAM BAHTERA BARITO RAYA, PT
BARITO UTARA
188.45/4.a/2010
BATUBARA
14/Jan/2010
164 ANDORA NINDIA MAKMUR, PT
BARITO UTARA
188.45/90/2010
1.874,00
EKSPLORASI
BATUBARA
4/Mar/2010
165 AR COAL MINING 2, PT
BARITO UTARA
188.45/87/2010
1.116,00
EKSPLORASI
BATUBARA
1/Mar/2010
166 ARSY NUSANTARA, PT
BARITO UTARA
188.45/38/2010
BATUBARA
29/Jan/2010
167 ARTHA WIGUNA SEMBADHA, PT
BARITO UTARA
188.45/370/2010
3.557,00
EKSPLORASI
BATUBARA
22/Mar/2010
168 AXINDO ARTHAMAS, PT
BARITO UTARA
188.45/421/2010
3.039,00
EKSPLORASI
BATUBARA
31/Mar/2010
169 BARITO ALAM RAYA, PT
BARITO UTARA
188.45/41/2010
5.756,00
EKSPLORASI
BATUBARA
7/Jan/2010
170 BARUTA ABADI, PT
BARITO UTARA
188.45/404/2009
5.042,00
EKSPLORASI
BATUBARA
14/Nov/2009
171 BATARA RESOURCES. PT
BARITO UTARA
188.45/497/2010
2.741,00
EKSPLORASI
BATUBARA
11/Feb/2010
172 BERSAMA MEMBANGUN NEGERI, PT
BARITO UTARA
188.45/129/2010
3.679,00
EKSPLORASI
BATUBARA
24/Mar/2010
173 BORNEO BANGUN BANUA, CV
BARITO UTARA
188.45/479/2009
BATUBARA
29/Dec/2009
174 BUANA ALAM TEGUH, PT BARITO UTARA
188.45/473/2009
1.795,00
EKSPLORASI
BATUBARA
28/Dec/2009
175 BUMI ENERGI JAYA. PT
BARITO UTARA
188.45/417/2010
4.172,00
EKSPLORASI
BATUBARA
31/Mar/2010
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
176 BUMI KARUNIA PERTIWI, PT
BARITO UTARA
188.45/438/2009
BATUBARA
16/Dec/2009
177 BUMI MULIA SEJATI, PT
BARITO UTARA
188.45/323/2010
5.477,00
EKSPLORASI
BATUBARA
11/Jan/2010
178 BUNDA KANDUNG, CV
BARITO UTARA
188.45/47/2010
BATUBARA
1/Feb/2010
179 CAKRA ANDATU SUKSES, PT
BARITO UTARA
188.45/483/2009
BATUBARA
30/Dec/2009
180 DANA BUANA ASIA, PT
BARITO UTARA
188.45/35/2011
BATUBARA
8/Mar/2011
181 DANI SUMBER RISKI, PT
BARITO UTARA
188.45/205/2010
9.278,00
EKSPLORASI
BATUBARA
23/Apr/2010
182 DAYA PRATAMA MANDIRI, PT
BARITO UTARA
188.45/221/2010
4.796,00
EKSPLORASI
BATUBARA
12/Apr/2010
183 DUTA SEJAHTERA 1, PT
BARITO UTARA
188.45/455/2009
BATUBARA
17/Dec/2009
184 ERAMITRA SUKSES MANDIRI, PT
BARITO UTARA
188.45/419/2010
2.167,00
EKSPLORASI
BATUBARA
2/Feb/2010
185 HARFA TARUNA MANDIRI, PT
BARITO UTARA
188.45/216/2010
BATUBARA
24/Apr/2010
186 MINERAL TAMBANG WAHANA, PT
BARITO UTARA
188.45/406/2009
5.051,00
EKSPLORASI
BATUBARA
14/Nov/2009
187 RIZKI TAMBANG SELARAS, PT
BARITO UTARA
188.45/443/2009
5.061,00
EKSPLORASI
BATUBARA
16/Dec/2009
188 SARANA TAMBANG UTAMA, PT
BARITO UTARA
188.45/405/2009
5.046,00
EKSPLORASI
BATUBARA
14/Nov/2009
189 SINAR KHATULISTIWA ENERGI JAYA, PT
BARITO UTARA
188.45/418/2010
2.950,00
EKSPLORASI
BATUBARA
2/Feb/2010
190 SINOMAST MINING, PT
BARITO UTARA
188.45/96/2010
BATUBARA
17/Mar/2010
191 SKYLAND ENERGY POWER, PT
BARITO UTARA
188.45/84/2010
3.978,00
EKSPLORASI
BATUBARA
1/Mar/2010
192 SUMBER REJEKI EKONOMI, PT
BARITO UTARA
188.45/410/2010
BATUBARA
21/Oct/2010
193 SYSTEM TATA ANUGRAH RESOURCES, PT
BARITO UTARA
188.45/85/2010
3.998,00
EKSPLORASI
BATUBARA
1/Mar/2010
194 TAMTAMA PERKASA, PT
BARITO UTARA
188.45/37/2010
9.540,00
EKSPLORASI
BATUBARA
29/Jan/2010
195 TRISULA KENCANA SAKTI 2, PT
BARITO UTARA
188.45/208/2010
BATUBARA
26/Apr/2010
196 TRISULA KENCANA SAKTI, PT
BARITO UTARA
188.45/207/2010
BATUBARA
26/Apr/2010
3.056,00
EMAS DMP
20/May/2009
197 BERKAT MOJANG RAYA.PT
SERUYAN
19 TAHUN 2009
EKSPLORASI
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
198 BUMI NIAGA KENCANA. PT
SERUYAN
15 TAHUN 2009
6.400,00
EKSPLORASI
BIJIH BESI
20/May/2009
199 DAYA BAMBU SEJAHTERA. PT
SERUYAN
16 TAHUN 2009
7.202,00
EKSPLORASI
EMAS DMP
20/May/2009
200 DEWO PUTRA. PT
SERUYAN
343 TAHUN 2010
1.300,00
EKSPLORASI
BIJIH BESI
4‐NOV‐2010
201 ALAM PERSADA NUSANTARA, PT
LAMANDAU
Ek.540/02/IX/2009
6.641,00
EKSPLORASI
BIJIH BESI
17/Sep/2009
202 ANUGRAH PETRA SEJAHTERA, PT
LAMANDAU
Ek.540/14/IX/2009
5.090,00
EKSPLORASI
BAUKSIT
25/Sep/2009
203 BAOLY MINERAL, PT
LAMANDAU
Ek.540/08/IX/2009
2.000,00
EKSPLORASI
BIJIH BESI
25/Sep/2009
204 BLANTIKAN PRIMA RAYA, PT
LAMANDAU
Ek.540/09/IX/2009
7.550,00
EKSPLORASI
BIJIH BESI
25/Sep/2009
205 BORNEO LAMANDAU ORE, PT
LAMANDAU
Ek.540/06/IX/2009
4.503,00
EKSPLORASI
BIJIH BESI
25/Sep/2009
206 KATINGAN INDONESIA, PT
LAMANDAU
Ek.540/07/IX/2009
3.000,00
EKSPLORASI
BIJIH BESI
25/Sep/2009
207 LAMANDAU PUTRA, PT
LAMANDAU
Ek.540/15/IX/2009
3.000,00
EKSPLORASI
BIJIH BESI
25/Sep/2009
208 LAWIN MAKMUR ABADI, PT
LAMANDAU
Ek.540/10/IX/2009
443,00
EKSPLORASI
BIJIH BESI
25/Sep/2009
209 MILLENNIUM MINING & RESOURCES, PT
LAMANDAU
Ek.540/12/IX/2009
5.923,00
EKSPLORASI
BIJIH BESI
25/Sep/2009
210 MILLENNIUM MINING & RESOURCES, PT
LAMANDAU
Ek.540/11/IX/2009
7.003,00
EKSPLORASI
BIJIH BESI
25/Sep/2009
211 PERSADA MAKMUR SEJAHTERA, PT
GUNUNG MAS
22/DPE/III/III/2011
6.200,00
EKSPLORASI
BATUBARA
9/Mar/2011
212 SURYA KALIMANTAN SEJATI, PT
GUNUNG MAS
24/DPE/III/III/2011
6.800,00
EKSPLORASI
BATUBARA
9/Mar/2011
213 SURYA KALIMANTAN SEJATI, PT
GUNUNG MAS
23/DPE/III/III/2011
10.000,00
EKSPLORASI
BATUBARA
9/Mar/2011
214 BERLIN I RAHU
PULANG PISAU
194 TAHUN 2011
PASIR SUNGAI
18/May/2011
215 DORIS HAMID
PULANG PISAU
193 TAHUN 2011
PASIR SUNGAI
18/May/2011
216 GENLI EROWANTO
PULANG PISAU
186 TAHUN 2011
PASIR URUG
18/May/2011
217 HAMRANI
PULANG PISAU
179 TAHUN 2011
SIRTU
18/May/2011
218 SYAMSURI
PULANG PISAU
192 TAHUN 2011
PASIR URUG
18/May/2011
219 AFRIAN TRADE, PT
BARITO TIMUR
479.a TAHUN 2009
BATUBARA
30/Oct/2009
3.018,00
EKSPLORASI
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
220 AGRA ANEKA MINERAL, PT
BARITO TIMUR
193A TAHUN 2010
1.748,00
EKSPLORASI
BATUBARA
13/Apr/2010
221 AMANAH ANUGERAH ADI MULIA, PT
BARITO TIMUR
597 Tahun 2009
5.111,00
EKSPLORASI
BATUBARA
31/Dec/2009
222 BARITO TIMUR ENERGI, PT
BARITO TIMUR
654 Tahun 2009
710,30
EKSPLORASI
BATUBARA
31/Dec/2009
223 BATU GUNUNG HARUYAN, PT
BARITO TIMUR
624 Tahun 2009
100,00
EKSPLORASI
BATUBARA
16/May/2009
224 BERKAH KERJA BERSAMA, CV
BARITO TIMUR
601 Tahun 2009
937,00
EKSPLORASI
BATUBARA
31/Dec/2009
225 DUTA CITRA KARINDO, PT
BARITO TIMUR
598 Tahun 2009
358,00
EKSPLORASI
BATUBARA
31/Dec/2009
226 GUNUNG EMAS ABADI, PT
BARITO TIMUR
576 Tahun 2009
BATUBARA
14/Aug/2009
227 INDO BESI ENERGI UTAMA, PT
BARITO TIMUR
462 Tahun 2009
9.987,00
EKSPLORASI
BATUBARA
16/Oct/2009
228 LION MULTI RESOURCES, PT
BARITO TIMUR
582 Tahun 2009
19.000,00
EKSPLORASI
BATUBARA
25/Mar/2009
229 PAJU EPAT RAYA, PT
BARITO TIMUR
425 Tahun 2009
5.911,00
EKSPLORASI
BATUBARA
30‐Okt‐2009
230 SENAMAS ENERGINDO MINERAL, PT
BARITO TIMUR
516 Tahun 2009
BATUBARA
8/Dec/2009
231 SINAR BARITO GLOBAL, PT
BARITO TIMUR
575 Tahun 2009
1.056,00
EKSPLORASI
BATUBARA
31/Jan/2009
232 SUMBER DAYA ENERGI, PT
BARITO TIMUR
653 Tahun 2009
14.730,00
EKSPLORASI
BATUBARA
25/Mar/2009
233 TANTRA ENERGY, PT
BARITO TIMUR
655 Tahun 2009
746,00
EKSPLORASI
BATUBARA
31/Dec/2009
234 TANTRA MINING RESOURCES, PT
BARITO TIMUR
574 Tahun 2009
324,30
EKSPLORASI
BATUBARA
19/Apr/2008
235 ALAM BHANA LESTARI, PT
BERAU
704 Tahun 2009
2.000,00
EKSPLORASI
BATUBARA
9/Dec/2009
236 ALAM BHANA RAYA, PT
BERAU
703 Tahun 2009
2.000,00
EKSPLORASI
BATUBARA
9/Dec/2009
237 ANUGRAH RIZKIE TABALAR, PT
BERAU
84 Tahun 2010
2.000,00
EKSPLORASI
BATUBARA
18/Feb/2010
238 BERKAT BUANA COAL, PT
BERAU
256 Tahun 2010
2.089,00
EKSPLORASI
BATUBARA
29/Apr/2010
239 BUKIT MUTIARA HITAM, PT
BERAU
186 Tahun 2010
2.129,00
EKSPLORASI
BATUBARA
31/Mar/2010
240 CIRIA PUTRA ENERGY, PT
BERAU
364 Tahun 2009
714,00
EKSPLORASI
BATUBARA
1/Jul/2009
241 DIRA GLEBOVA ADITYA, PT
BERAU
373 Tahun 2009
4.770,00
EKSPLORASI
BATUBARA
3/Jul/2009
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
242 ENERGY PERSADA NUSANTARA, PT
BERAU
295 Tahun 2010
4.973,00
EKSPLORASI
BATUBARA
30/Apr/2010
243 GINDOJAYA MITRA ABADI, PT
BERAU
465 Tahun 2009
4.951,00
EKSPLORASI
BATUBARA
20/Aug/2009
244 MAHA RESOURCES PERSADA, PT
BERAU
261 Tahun 2010
3.482,00
EKSPLORASI
BATUBARA
29/Apr/2010
245 MAHKOTA MEGAH ABADI, PT
BERAU
336 Tahun 2009
1.747,00
EKSPLORASI
BATUBARA
19/Jun/2009
246 NAGA BORNEO ENERGI, PT
BERAU
249 Tahun 2010
3.369,00
EKSPLORASI
BATUBARA
28/Apr/2010
247 NARWASTU SUMBER KASIH, PT
BERAU
297 Tahun 2010
4.651,00
EKSPLORASI
BATUBARA
30/Apr/2010
248 PERSADA BORNEO REOSURCES, PT
BERAU
433 Tahun 2009
2.311,00
EKSPLORASI
BATUBARA
4/Aug/2009
249 PITU BABBANA BINANGA, PT
BERAU
302 Tahun 2010
4.919,00
EKSPLORASI
BATUBARA
30/Apr/2010
250 PRATAMA SUMBER BUMIBARA, PT
BERAU
320 Tahun 2009
2.000,00
EKSPLORASI
BATUBARA
16/Jun/2009
251 RATNA UTAMA KARYA, PT
BERAU
292 Tahun 2010
5.010,00
EKSPLORASI
BATUBARA
30/Apr/2010
252 SATRIA PERKASA COAL, PT
BERAU
258 Tahun 2010
2.028,00
EKSPLORASI
BATUBARA
29/Apr/2010
253 SINAR BARA NUSANTARA, PT
BERAU
558 Tahun 2009
2.337,00
EKSPLORASI
BATUBARA
15/Oct/2009
254 SURYA SERUNI, PT
BERAU
766 Tahun 2009
4.633,00
EKSPLORASI
BATUBARA
31/Dec/2009
255 SYAHID BERAU BESTARI, PT
BERAU
294 Tahun 2010
2.070,00
EKSPLORASI
BATUBARA
30/Apr/2010
775,00
EKSPLORASI
BATUBARA
256 DUAMERAH, PT
PENAJAM PASER UTARA
545/22 ‐ IUP EKS/DISTAM/V/2011
06‐Mei‐11
257 PIPIT MUTIARA JAYA, PT
TANA TIDUNG
503/118/K‐IV/2010
3.000,00
EKSPLORASI
BATUBARA
20/Apr/2010
258 SANTY PERMATASARI, PT
TANA TIDUNG
503/15/K‐II/2010
3.138,00
EKSPLORASI
BATUBARA
23/Feb/2010
541.15/56/DISTAMBEN
5.000,00
EKSPLORASI
NIKEL
28/Jan/2011
540.2/SK.030/DESDM/II/2010
10.100,00
EKSPLORASI
NIKEL DMP
25/Feb/2010
259 SINAR MAKMUR CEMERLANG, PT
260 TIGA SAMUDRA PERKASA, PT
BANGGAI
MOROWALI
261 DILA ADI SAPUTRA, PT
KEPULAUAN SELAYAR
237/I/TAHUN 2010
10.000,00
EKSPLORASI
NIKEL
5/Jan/2010
262 NIAGA MAJU PASIFIK, PT
KEPULAUAN SELAYAR
238/I/TAHUN 2010
5.652,00
EKSPLORASI
PASIR BESI
5/Jan/2010
263 NIAGA MAJU PASIFIK, PT
KEPULAUAN SELAYAR
239/I/TAHUN 2010
13.000,00
EKSPLORASI
PASIR BESI
5/Jan/2010
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
264 ALAM MITRA MANDIRI, PT
BUTON
406 TAHUN 2011
ASPAL
10/Jun/2011
BUTON
684 TAHUN 2011
ASPAL
18/Aug/2011
BUTON
683 TAHUN 2011
ASPAL
18/Aug/2011
267 BUMI NIAGA LESTARI, PT
BUTON
688 TAHUN 2011
ASPAL
18/Aug/2011
268 EXPERTINDO SOLUSI PRATAMA, PT
BUTON
290 Tahun 2011
635,00
EKSPLORASI
ASPAL
25/Apr/2011
269 INTI BUMI SELARAS, PT
BUTON
690 TAHUN 2011
ASPAL
18/Aug/2011
270 INTI BUMI SELARAS, PT
BUTON
691 TAHUN 2011
ASPAL
18/Aug/2011
271 KARUNIA ALAM INDONESIA, PT
BUTON
686 TAHUN 2011
ASPAL
18/Aug/2011
EKSPLORASI
EMAS
30/Nov/09
NIKEL
7/Jul/2011
EKSPLORASI
NIKEL
29/Mar/2010
NIKEL
11/Jan/2010
EKSPLORASI
BATUBARA
17/DES/2009
BATUBARA
05‐Jan‐10
272 ANEKA TAMBANG, PT
MAMASA
540.1/KPTS‐138.C/XI/2009
273 FAJAR BHAKTI LINTAS NUSANTARA, PT
HALMAHERA TENGAH
540/KEP/253/2011
274 FAJAR BHAKTI LINTAS NUSANTARA
HALMAHERA TENGAH
540/KEP/113.a/2010
275 ANEKA TAMBANG TBK, PT
HALMAHERA TIMUR
188.45/540‐04/2010
276 GARIS EMAS SELARAS, PT
TELUK BINTUNI
100 TAHUN 2009
277 FAJAR MINERAL ALAMI INTERNATIONAL, PT
TANAH BUMBU
545/006/IUP‐OP/D.PE/2010
278 TAWABU MINERAL RESOURCES, PT
KUTAI TIMUR
279 SEMESTA ALAM BARITO, PT
MURUNG RAYA
280 PENTA DHARMA KARSA, PT
BANGGAI
281 MILLENIUM MINING & RESOURCES, PT
282 HENGJAYA MINERALINDO, PT
283 HANSON ENERGY, PT
KUTAI TIMUR
MOROWALI
888,00
2.000,00
12.553,00
540.1/K.15/HK/1/2010
6.205,00
EKSPLORASI
BATUBARA
14‐Jan‐10
188.45/176/2010
5.105,00
EKSPLORASI
BATUBARA
20‐Apr‐10
NIKEL
27/MEI/2011
EKSPLORASI
BATUBARA
22‐Jan‐10
NKEL
16‐Jun‐11
541.15/653/DISTAMBEN
540.1/K.2/HK/1/2010
540.3/SK.001/DSDM/VI/2011
3.248,00
OGAN KOMERING ULU TIMUR
302 TAHUN 2009
4.000,00
EKSPLORASI
BATUBARA
21‐Nop‐09
284 SUN INDO BARA BAHANA, PT
BARITO UTARA
188.45/507/2010
863,8
EKSPLORASI
BATUBARA
15‐Feb‐10
285 SARIPRATAMA INDORESOURCES, PT
BARITO UTARA
188.45/511/2010
3.237,00
EKSPLORASI
BATUBARA
20‐Feb‐10
NO
NAMA PERUSAHAAN
286 SINAR INTI BERSAMA, PT
KABUPATEN / KOTA
NO DAN TAHUN SK
BARITO UTARA
188.45/509/2010
ACEH BESAR
288 GEBE SENTRA NICKEL, PT
289 HARUM SUKSES MINING, PT
287 TAMBANG INDRAPURI JAYA, PT
LUAS WILAYAH (HA)
KOMODITAS
TANGGAL SK
EKSPLORASI
BATUBARA
11‐Feb‐10
545/115/IUP/2011
BIJIH BESI DMP
4‐Apr‐11
HALMAHERA TENGAH
540/KEP/347/2011
NIKEL
5‐Dec‐11
HALMAHERA TENGAH
540/KEP/327/2009
NIKEL
28‐Dec‐09
BATUBARA
23‐Dec‐09
5.000,00
EKSPLORASI
BATUBARA
5‐Feb‐10
290 DAHLIA BIRU, PT
BARITO SELATAN
527 TAHUN 2009
291 GALA RAYA SENTOSA, PT
BARITO SELATAN
47 TAHUN 2010
8,27
TAHAPAN KEGIATAN
292 FARIS MOTOR, CV
TANAH LAUT
545/26‐IUP.OP/DPE/2011
BATUBARA
19‐Aug‐11
293 BILLY INDONESIA, PT
LUWU TIMUR
540/02/DESDM/TAHUN 2011
BESI LATERIT
7‐Feb‐11
HALMAHERA SELATAN
54 TAHUN 2010
TEMBAGA, EMAS DMP
22‐Mar‐10
BERAU
559 TAHUN 2011
EKSPLORASI
BATUBARA
13‐Oct‐11
BATUBARA
18‐Jan‐11
4.000,00
EKSPLORASI
BATUBARA
14‐Dec‐11
294 GANE PERMAI SENTOSA, PT
295 ARTHA TUNGGAL MANDIRI, PT
296 RENCANA MULIA BARATAMA, PT
297 BUKIT TAMBI, PT
KUTAI KARTANEGARA
BATANG HARI
540/014/IUP‐OP/MB‐PBAT/I/2011
2.993,00
298 BUMI LESTARI JAYA, PT
KAUR
1230 TAHUN 2009 34.060,00
EKSPLORASI
EMAS DMP
22‐Dec‐09
299 MAG ENERGY PACIFIC
BARITO UTARA
188.45/532/2010
5.004,00
EKSPLORASI
BATUBARA
18‐Mar‐10
300 MIFA BERSAUDARA
ACEH BARAT
117.b TAHUN 2011
BATUBARA
30‐Mar‐11
301 GROUP RAHMAT BERSAMA, PT
TANAH LAUT
545/34‐IUP.OP/DPE/2011
BATUBARA
24‐Oct‐11
302 SUCHAI KRISH INTERNATIONAL, PT
MUARA ENIM
4.489,00
EKSPLORASI
BATUBARA
30‐Dec‐09
303 MULTI KREASI PERSADA, PT
MUARA ENIM
780,6
EKSPLORASI
BATUBARA
2‐Oct‐09
304 ENIM ENERGY, PT
MUARA ENIM
402,6
EKSPLORASI
BATUBARA
30‐Dec‐09
305 BUBUHAN MULTI SEJAHTERA, PT
BATANG HARI
1.805,00
EKSPLORASI
BATUBARA
30‐Nov‐10
BATANG HARI
503/64/IUPOP/BPTSP/2011
BATUBARA
28‐Sep‐11
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
BATANG HARI
1.000,00
EKSPLORASI
BATUBARA
6‐May‐11
BATANG HARI
2.000,00
EKSPLORASI
BATUBARA
6‐May‐11
BATANG HARI
2.000,00
EKSPLORASI
BATUBARA
6‐May‐11
310 ALASJAYA NATURAL RESOURCES, PT
ACEH TENGGARA
543/106/2009
28.710,00
EKSPLORASI
TIMAH HITAM
7‐Jul‐09
311 ALASJAYA NATURAL RESOURCES, PT
ACEH TENGGARA
543/107/2009
10.260,00
EKSPLORASI
TIMAH HITAM
7‐Jul‐09
540/03/DESDM/TAHUN 2011
BESI LATERIT
21‐Feb‐11
188.45/152‐540/2009
NIKEL
7 des 09
312 BILLY INDONESIA, PT
313 INDO BUMI NICKEL, PT
LUWU TIMUR
HALMAHERA TIMUR
314 BUMI PANGKEP SUMBER SEJAHTERA, PT
PANGKAJENE KEPULAUAN
540.11/20‐IUP/DPE/V/2009
MARMER
18‐May‐09
315 ANUGRAH KUARI ABADI, PT
PANGKAJENE KEPULAUAN
540.11/19‐IUP/DPE/V/2009
MARMER
18‐May‐09
316 PERSADA MAKMUR SEJAHTERA, PT
317 KEMANG MITRASWADAYA, PT
318 WAHANA ALAM LESTARI, PT
GUNUNG MAS
KUTAI KARTANEGARA
TEBO
21/DPE/III/II/2011
10.000,00
EKSPLORASI
BATUBARA
9‐Mar‐11
540/0777/IUP‐ER/MB‐PBAT/IV/2010
4.653,00
EKSPLORASI
BATUBARA
13‐Apr‐10
BATUBARA
12‐Apr‐10
EKSPLORASI
MARMER
1‐May‐11
197/ESDM/2010
319 BLORA MARMER KUSUMA, CV
GROBOGAN
503/662/IUP.E/V/2011
320 GEOLAVA MANUNGGAL TEKNIK UTAMA, PT
MOJOKERTO
188.45/267/HK/416‐012/2010
PASIR URUG
8‐Apr‐10
MALANG
180/421/KEP/421.013/2011
PIROFILIT
31‐May‐11
PASURUAN
545/328/424.077/2010
PASIR URUG
23‐Apr‐10
323 KARYACITRA MITRASEJATI, PT
MOJOKERTO
188.45/266/HK/416‐012/2010
PASIR URUG
8‐Apr‐10
324 WIRA BHUMI SEJATI, PT
JAWA TIMUR
188.4/01/119/IUP‐OP/2010
299,24 OPERASI PRODUKSI BATU GAMPING
27‐Apr‐10
325 WIRA BHUMI SEJATI, PT
PASURUAN
545/327/424.077/2010
TOJO UNA‐UNA
188.45/370/DISTAMBEN
321 GUNUNG BALE, PT
322 IMAASKOJAYA BHUMIPERSADA, PT
326 WADUK MAS PERSADA, PT
5,00
9.053,00
EKSPLORASI
PASIR URUG
23‐Apr‐10
BIJIH BESI DMP
10‐May‐11
NO
NAMA PERUSAHAAN
327 BANUA SANGGAM LESTARI, PT
KABUPATEN / KOTA
LUAS WILAYAH (HA)
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
29 TAHUN 2011
MANGAN
3‐Mar‐11
HALMAHERA UTARA
540/123/HU/2011
PASIR BESI
23‐Jun‐11
329 INDO SNL, PT
SERUYAN
233 TAHUN 2010
5.000,00
EKSPLORASI
BIJIH BESI
3‐Jul‐10
330 INDO MINERAL PRIMA, PT
SERUYAN
235 TAHUN 2010
1.479,00
EKSPLORASI
GALENA DMP
3‐Jul‐10
331 MULIA ANUGERAH SAWITINDO, PT
KOTA TIDORE KEPULAUAN
7.5 TAHUN 2012
8.304,00
EKSPLORASI
NIKEL
26‐Jan‐12
332 MULIA ANUGERAH SAWITINDO, PT
7.4 TAHUN 2012
4.000,00
EKSPLORASI
BIJIH BESI
26‐Jan‐12
333 BERKAT ANUGERAH MAJU ABADI (1), PT
7.2 TAHUN 2012
1.468,00
EKSPLORASI
PASIR BESI
26‐Jan‐12
334 BERKAT ANUGERAH MAJU ABADI (2), PT
7.3 TAHUN 2012
5.033,00
EKSPLORASI
PASIR BESI
26‐Jan‐12
335 SHANA TOVA ANUGERAH, PT
7.1 TAHUN 2012
9.063,00
EKSPLORASI
EMAS
26‐Jan‐12
02/09/DISTAMBEN/
10.088,00
EKSPLORASI
EMAS DMP
5‐Jan‐11
BATUBARA
22‐Jun‐11
328 HALMAHERA SENTRA MINERAL, PT
336 INDOTAN LOMBOK BARAT BANGKIT, PT
HALMAHERA SELATAN
NO DAN TAHUN SK
LOMBOK BARAT
337 BERINGIN JAYA ABADI, PT
KUTAI KARTANEGARA
338 INTAN BUMI PERSADA, PT
KAPUAS
362/DISTAMBEN TAHUN 2011
5.000,00
EKSPLORASI
BATUBARA
14‐Sep‐11
339 PIRANTI JAYA UTAMA, PT
KAPUAS
4.800,00
EKSPLORASI
BATUBARA
14‐Sep‐11
BATUBARA
31‐Dec‐09
BATUBARA
15‐Apr‐09
EKSPLORASI BATUBARA DMP
14‐Dec‐09
340 SARANA PUTRA PERDANA, PT
BARITO TIMUR
540/123/IUP‐OP/MB‐PBAT/VI/2011
579 TAHUN 2009 341 BUMI LESTARI JAYA, PT
HALMAHERA TENGAH
540/KEP/147.A/2009
8.457,60
342 BUMI SENTOSA JAYA, PT
HALMAHERA TENGAH
540/KEP/317.A/2009
16.590,00
EKSPLORASI
343 RIYANTA JAYA, PT
KAPUAS
5.000,00
EKSPLORASI
BATUBARA
2‐May‐11
344 PELITA INDAH, CV
KAPUAS
9.117,00
EKSPLORASI
BATUBARA
2‐May‐11
345 MARIOGI KHARISMA JAYA, PT
KAPUAS
10.000,00
EKSPLORASI
BATUBARA
2‐May‐11
05 TAHUN 2010
10.030,00
EKSPLORASI
EMAS DMP
11‐Jan‐10
540/155/IUP‐EKSPLORASI/2010
15.610,00
EKSPLORASI
EMAS DMP
17‐Mar‐10
346 BUMI LESTARI JAYA, PT
347 SYNERGY MINING
BENGKULU SELATAN
GAYO LUES
NO
NAMA PERUSAHAAN
348 BINTANG SINAR PERKASA, PT
KABUPATEN / KOTA
MOROWALI
NO DAN TAHUN SK
540.2/SK.058/DESDM/IV/2010
LUAS WILAYAH (HA)
2.163,00
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
EKSPLORASI
NIKEL DMP
30‐Apr‐10
349 KEMUNING TAMBANG SENTOSA, PT
INDRAGIRI HILIR
02/DPE‐PU/I/2010
BATUBARA
16‐Jan‐10
350 KERITANG BUANA MINING, PT
INDRAGIRI HILIR
03/DPE‐PU/I/2010
BATUBARA
16‐Jan‐10
351 ARTA USAHA BAHAGIA, PT
BARITO UTARA
188.45/56/2010
BATUBARA
16‐Feb‐10
352 BUKIT ASAM (PERSERO), PT
MUARA ENIM
2402 K/30/MEM/2011
BATUBARA
10‐Oct‐11
353 BUKIT ASAM (PERSERO), PT
SUMATERA SELATAN
751/KPTS/DISPERTAMBEN/2010
BATUBARA
29‐Oct‐10
MOROWALI
540.2/SK.014/DESDM/XII/2010
5.041,00
EKSPLORASI
KROMIT DMP
30‐Dec‐10
EKSPLORASI
354 DUA RAJAWALI PROENERGI, PT
355 ANEKA TAMBANG, Tbk, PT
PEGUNUNGAN BINTANG
540/2876/SET TAHUN 2010
49.740,00
PEGUNUNGAN BINTANG
540/2892/SET TAHUN 2010
49.830,00
357 PUTRA DEWA JAYA, PT
KUTAI KARTANEGARA
540/072/IUP‐OP/MB‐PBAT/V/2011
EMAS, PERAK, TEMBAGA, SENG
EMAS, PERAK, EKSPLORASI
TEMBAGA, SENG
25‐Aug‐10
25‐Aug‐10
BATUBARA
10‐May‐11
358 DIVA DUNIA INTERNASIONAL, PT
BOMBANA
126 TAHUN 2009
3.230,00
EKSPLORASI
EMAS
24‐Apr‐09
359 KAYAN RESOURCES, PT
SUKAMARA
545/260/HUK/2010
6.055,00
EKSPLORASI
BAUKSIT
17‐Apr‐10
360 BORNEO METALINDO SENTOSA, PT
SUKAMARA
545/172/HUK/2010
5.000,00
EKSPLORASI
BIJIH BESI
15‐Jan‐10
361 KILAUAN KEBAHAGIAAN INTI TAMBANG, PT
SUKAMARA
545/274/HUK/2010
7.482,89
EKSPLORASI
BAUKSIT
14‐Apr‐10
362 NUSANTARA MEGAH UTAMA TAMBANG, PT
SUKAMARA
545/273/HUK/2010
8.969,00
EKSPLORASI
BAUKSIT
14‐Apr‐10
363 GEMA KARYA KILAUAN MINERAL, PT
SUKAMARA
545/275/HUK/2010
6.770,39
EKSPLORASI
BAUKSIT
14‐Apr‐10
SUMBAWA BARAT
602 TAHUN 2010
31.204,00
EKSPLORASI
EMAS
9‐Jul‐10
365 SUMBER ENERGI JAYA, PT
MINAHASA SELATAN
87 TAHUN 2010
EMAS
4‐Jun‐10
MERANGIN
178/ESDM/2010
14.910,00
EKSPLORASI
BATUBARA
24‐May‐10
367 BINTANG BIMASAKTI INDONESIA, PT
MOROWALI
540.2/SK.008/DESDM/V/2010
25.550,00
EKSPLORASI
NIKEL
18‐May‐10
364 INDOTAN SUMBAWA BARAT, PT
PEGUNUNGAN BINTANG
540/2884/SET TAHUN 2010
49.920,00
EKSPLORASI
EMAS
25‐Aug‐10
PEGUNUNGAN BINTANG
540/2883/SET AHUN 2010
49.830,00
EKSPLORASI
EMAS
25‐Aug‐10
NO
NAMA PERUSAHAAN
KABUPATEN / KOTA
NO DAN TAHUN SK
LUAS WILAYAH (HA)
370 SUMBER ENERGI JAYA, PT
MINAHASA TENGGARA
130 TAHUN 2011
371 ANUGERAH PANCARAN BULAN, PT
KUTAI KARTANEGARA
540/2552/IUP‐Er/MB‐PBAT/IX/2010
5.000,00
372 ANUGERAH PANCARAN BULAN, PT
KUTAI KARTANEGARA
540/2551/IUP‐Er/MB‐PBAT/IX/2010
545/09‐IUP.EKS/DPE/2011
373 PRAFA COAL MINING, PT
TANAH LAUT
TAHAPAN KEGIATAN
KOMODITAS
TANGGAL SK
EMAS
10‐Oct‐11
EKSPLORASI
BATUBARA
28‐Sep‐10
5.000,00
EKSPLORASI
BATUBARA
28‐Sep‐10
158,90
EKSPLORASI
BATUBARA
16‐Mar‐11
(insignia)
CLEAR AND CLEAN CERTIFICATE
Number: 685/Min/06/2013
has been granted to
Name
: PT INDOTAN LOMBOK BARAT BANGKIT
Address
: Graha Sentana, 4th floor
Jl. Buncit Raya No.2
Jakarta Selatan 12760
Decision Letter
: Regent of Lombok Barat, Nusa Tenggara Barat
Number
: 02/09/DISTAMBEN/2011
Phase
: Exploration
Commodity Type : Metal Mineral, Gold
Ratified in Jakarta
on: 25 March 2013
Director General of Mineral and Coal,
(stamp and signature)
Dr. Ir. Thamrin Sihite, ME.
At the time of issuance of this certificate the company has met the
following requirements:
1.
2.
3.
Administration:
a.
Not Overlapping
b.
Permits documents
STAMP
Technical:
a.
Exploration report
b.
Feasibility study report
c.
Environmental documents approval
Financial obligations:
a.
Fixed fee
b.
Royalty
Note:
In the event of error during the issuance of this certificate, revision is to
be done in accordance with the prevailing statutory regulations.
The above has been translated from Bahasa Indonesia into English by:
Sylvia Longdong – Sworn Translator
SK.GUB.DKIJAYA No. 3064/2003
Jakarta, August 20th, 2013
Sylvia Longdong

Technical Report - Southern Arc Minerals

Transcription

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