FEASIBILITY WORK
The FS was completed by Lycopodium Engineering Pty Ltd (“Lycopodium”) and Cube Consulting Pty Ltd (“Cube”) based on 3.5 and 4.5 million tonnes per annum plant throughput scenarios supported by open pit mining activities.
In addition to previous Pre-Feasibility Study “PFS” work, the Moto Group has spent in excess of US$5M in the 15 months to November 2007 on technical design and evaluation work associated with the FS. Expenditure on resource definition and technical drilling for FS purposes totals over US$13M.
Probable Mineral Reserves of 37.8 Mt at 3.2 g/t Au for 3.9 Moz are planned to be mined and processed over an 8½ year mine life on the basis of a 4.5 Mtpa throughput.
Key Findings of the Feasibility Study
In order to maximize the Project’s return on capital, improve pay-back period, minimize cash operating cost and maximize asset utilization/exploitation, Moto has decided that the 4.5 Mtpa scenario as detailed in the FS currently represents the preferred option. Key points of the study include:
- extensive re-scoping of the PFS project dimensions;
- confirmation and further clarification of technical findings from the PFS;
- Probable Mineral Reserves of 37.8 Mt at 3.2 g/t Au for 3.9 Moz;
- total gold production of 3.3 Moz over 8½ years;
- a nominal output of 400,000 ounces of gold per annum;
- project financials evaluated using gold revenue of US$600 /oz and 100% equity basis;
- generation of annual pre-tax operating cash flows averaging US$120M;
- average cash operating costs of US$294 /oz produced;
- payback period of approximately 4½ years for initial capital and infrastructure cost expenditures, excluding expenditures to date;
- sensitivity analysis indicating reduction in payback period to 3 years for a gold revenue price of US$750/oz; and
- capital and infrastructure cost estimates total US$483M including US$80M hydro-electric power station, US$78M initial mining fleet & US$47M construction contingency.
|
Category
|
Gross
|
Net Attributable to Moto Group
|
Operator
|
||||
|
|
Tonnes (millions)
|
Grade (Au g/t)
|
Contained Metal (koz)
|
Tonnes (millions)
|
Grade (Au g/t)
|
Contained Metal (koz)
|
|
|
|
|
|
|
|
|
|
|
|
Mineral Reserves
|
|
|
|
|
|
|
|
|
Proved
|
-
|
-
|
-
|
-
|
-
|
-
|
Moto Group
|
|
Probable
|
37.8
|
3.2
|
3,940
|
22.7
|
3.2
|
2,364
|
Moto Group
|
|
Sub-total
|
37.8
|
3.2
|
3,940
|
22.7
|
3.2
|
2,364
|
|
|
|
|
|
|
|
|
|
|
|
Mineral Resources
|
|
|
|
|
|
|
|
|
Measured
|
-
|
-
|
-
|
-
|
-
|
-
|
Moto Group
|
|
Indicated
|
77.8
|
2.8
|
7,030
|
46.7
|
2.8
|
4,218
|
Moto Group
|
|
Inferred
|
98.9
|
3.8
|
12,112
|
59.3
|
3.8
|
7,267
|
Moto Group
|
Source: Refer to Qualified Persons section for details of Qualified Persons (TSX) or Competent Persons (AIM) with respect to the quotation of Mineral Reserves and/or Mineral Resources.
Exploitation of Resource Base and Future Direction
The FS evaluated the Project’s Indicated Mineral Resources of 77.8 Mt at 2.8 g/t Au for 7.0 Moz and did not take into account an additional Inferred Mineral Resource base of 98.9 Mt at 3.8 g/t Au for 12.1 Moz.
Since the completion of the PFS in August 2006, the conversion rate of Inferred to Indicated Mineral Resources has been close to 100% within the key deposits.
On this basis, the Moto Group proposes to actively develop a long term exploitation plan that includes high grade underground mining as well as expansion of planned open pits. Continued extensional exploration success further supports this initiative, with the FS, as anticipated, providing a sound start up position for future development. AMC Consultants Pty Ltd is preparing an underground concept study that will include drilling information to the end of 2007 which is expected to enhance project economics and leverage start-up capital.The Moto Gold Project is located in the north-east of the DRC and is a joint venture between L’Office des Mines d’Or de Kilo-Moto (“OKIMO”)(30%), Border Energy Pty Ltd (a Moto wholly-owned subsidiary)(60%) and Orgaman sprl (10%).
Following the completion of a PFS in August 2006, the Moto Group committed to a FS for the project. Lycopodium and Cube were appointed as the principal engineering and geological consultants respectively to manage and undertake the study. Contributors to key components of the study are as follows:|
Cube Consulting
|
· Geological database management, interpretation and validation · Resource estimation · Mine design & scheduling, mine capital & operating cost estimates |
|
Ammtec
|
· Metallurgical testwork |
|
Lycopodium
|
· Metallurgical interpretation & process plant design · Infrastructure design · Project implementation · Capital & operating cost estimation |
|
Knight Piésold
|
· Site geotechnical & hydrological assessment · Tails storage facility design & geochemical assessment · Hydropower assessment & design · Site infrastructure design including roads, civils & bridges |
|
SGS Ghana
|
· Environmental and social licence assessment |
All figures provided in the Feasibility Study Summary represent the Moto Gold Project, being 100% of the project, unless otherwise stated.
Since the PFS, an extensive infill, sterilisation and technical drilling programme consisting of over 600 holes totalling 75,000m of RC and Diamond Drilling was completed across the project including sterilisation and geotechnical drilling totalling 18,000m. Resource interpretation and estimation work used drill data available at the end of February 2007.
Geological logging, sample preparation, assaying, resource modelling and estimation works associated with the FS were conducted in accordance with Moto’s QA/QC systems. These systems were independently audited by Snowden Mining Industry Consultants (“Snowden”) in 2006 and were found to be of good industry standard with Snowden also endorsing Cube’s resource estimates and expressing an opinion on the Project’s upside potential.
Geo-statistical analysis was undertaken on the mineralised material prior to grade estimation of the resources using Ordinary Kriging on a 20x20x5m panel. Uniform Conditioning with a 5x5x2.5m SMU was applied to these estimates to yield a recoverable Resource estimate. The Mineral Resources were then reported above a range of grade cut-offs for the mining study.
As at April 2007, the estimated Project Mineral Resources[1] above a 1 g/t gold cut-off are; Indicated Mineral Resources of 77.8 Mt at 2.8 g/t Au for 7.0 Moz and Inferred Mineral Resources of 98.9 Mt at 3.8 g/t Au for 12.1 Moz[1] All the mineral resource estimates undertaken by Cube have been classified and reported in accordance with The 2004 Australasian Code for Reporting of Mineral Resources and Ore Reserves (2004 JORC Code). The 2004 JORC reporting guidelines are equivalent to the guidelines adopted for the Canadian National Instrument 43-101.
|
Moto Gold Mines - Moto Gold Project April 2007 |
||||||
|
Mineral Resources >1.0 g/t Gold
|
||||||
|
Deposit
|
Indicated
|
Inferred
|
||||
|
Mt
|
Gold g/t
|
Gold |
Mt
|
Gold g/t
|
Gold |
|
|
Pakaka
|
17.52
|
2.5
|
1,393
|
-
|
-
|
-
|
|
Gorumbwa
|
-
|
-
|
-
|
8.29
|
5.2
|
1,374
|
|
Kibali
|
-
|
-
|
-
|
17.08
|
2.2
|
1,206
|
|
Mengu Hill
|
6.57
|
3.4
|
720
|
0.16
|
2.4
|
13
|
|
Mengu Village
|
1.36
|
1.8
|
77
|
-
|
-
|
-
|
|
Karagba
|
7.96
|
2.7
|
691
|
21.76
|
3.1
|
2,151
|
|
Chauffeur
|
25.51
|
3.3
|
2,695
|
24.47
|
5.6
|
4,427
|
|
Durba
|
2.65
|
3.3
|
277
|
3.19
|
2.3
|
238
|
|
Sessenge Deeps
|
-
|
-
|
-
|
11.57
|
5.2
|
1,923
|
|
Megi
|
-
|
-
|
-
|
4.14
|
2.1
|
277
|
|
Marakeke
|
-
|
-
|
-
|
2.41
|
1.7
|
134
|
|
Kombokolo
|
1.91
|
2.6
|
162
|
0.05
|
2.7
|
4
|
|
Sessenge
|
8.72
|
2.4
|
666
|
0.88
|
2.2
|
63
|
|
Ndala
|
-
|
-
|
-
|
0.26
|
4.0
|
34
|
|
Pamao
|
5.62
|
1.9
|
347
|
4.58
|
1.8
|
268
|
|
Total
|
77.82
|
2.8
|
7,030
|
98.85
|
3.8
|
12,112
|
Note: The Indicated Mineral Resources are inclusive of those Mineral Resources modified to produce the Mineral Reserves.
A geotechnical evaluation program using information derived from purpose drilled geotechnical diamond core holes recommends inter-berm mining angles ranging between 31° and 41° in the weathered rocks and between 35° and 57° for fresh rock. As the project matures, these parameters will be further optimised.
Whittle open pit optimizations were undertaken on each deposit based on the Indicated Mineral Resources. Mining costs were generated from first principles, benchmarked with similar operations and then applied by depth from the surface. Open pit designs were based on the US$550/oz optimization shells, with staging incorporated to yield balanced mining fleet requirements and access preferential mill feed. A total of 6 pits are planned to be mined within the Moto Gold Project encompassing total Probable Mineral Reserves of 37.8 Mt at 3.2 g/t Au for 3.9 Moz.The Probable Mineral Reserves are based on the Indicated Mineral Resource base only. It follows that significant upside exists for the project with the potential for conversion of the 12.1 MozInferred Mineral Resource base as a result of additional drilling. The breakdown per project area is listed below:
|
Moto Gold Project - Probable Mineral Reserves
|
||||||||||||
|
Deposit
|
Oxide
|
Transitional
|
Fresh
|
Total
|
||||||||
|
Mt
|
Au g/t
|
Au koz
|
Mt
|
Au g/t
|
Au koz
|
Mt
|
Au g/t
|
Au koz
|
Mt
|
Au g/t
|
Au koz
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
KCD (Durba)
|
2.7
|
3.2
|
269
|
2.1
|
3.6
|
246
|
14.3
|
3.7
|
1,682
|
19.0
|
3.6
|
2,198
|
|
Kombokolo
|
0.1
|
2.4
|
8
|
0.1
|
3.4
|
12
|
0.5
|
3.9
|
60
|
0.7
|
3.6
|
81
|
|
Mengu Hill
|
1.8
|
3.3
|
184
|
1.0
|
4.3
|
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