Overview
Stage | Construction |
Mine Type | Open Pit |
Commodities |
|
Mining Method |
|
Mine Life | 30 years (as of Jan 1, 2020) |
Source:
p. 4
Triton, through its 100% owned subsidiaries domiciled in the United Arab Emirates, has a 100% economic interest in Grafex Limitada. Grafex is the registered holder of seven exploration licenses in the Cabo Delgado Province of northern Mozambique. The licenses comprise three project areas; the Ancuabe Project, the Balama North Project and the Balama South Project.
Contractors
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Summary:
The interpreted mineralisation zones (>3% TGC) comprise eight individual lenses. Approximately 70% of the mineralisation is contained in two major lenses (Zones 1 and 2), that range between a minimum of about 2 m up to a maximum of about 15 m in true thickness. The mineralisation roughly strikes towards 070°, dipping on average 20° towards 340° – although the lenses appear to be affected by gentle folding.
The strike extent is roughly 1,100 m and across strike width is roughly 500 m.
The mineralisation outcrops in the south and east and is interpreted up to a maximum depth of about 190 m below surface in the north. The combined thickness of the mineralisation zones is greatest (˜25 m to ˜40 m) in the eastern half of the deposit thinning to the west (˜5 m to ˜20 m).
Summary:
The mining method selected for the Ancuabe project is open pit mining applying conventional techniques that are commonly practiced in this style of deposit and region. A mining recovery factor of 95% and dilution factor of 10% have been applied in the Ore Reserve Estimate.
Separate optimisations were run for the T12 and T16 deposits, and two optimisations were carried out for T16 to determine the effect of constraining the pit limits to the tenement boundary on the north of the deposit. Both deposits show flat cash curves indicating that the optimisation is Mineral Resource constrained, indicating that the deposits may continue at depth and possibly along strike.
Final pit designs correlate well with optimisation results, however the T16 final design contains 15% less ROM feed than the optimisation shell as a more practical to the tenement boundary constraint was adopted in the pit design.
Depending on the availability of suitable waste materials at T16 additional materials for the Tailings Storage Facility wall and Water Storage Facility wall construction may also be sourced from within the proposed containment areas. Prior to completion of mining operations at T16, pre- strip mining will commence at T12.
It is planned that conventional drill and blast, load and haul, open pit mining will be used to extract the mineralised material. ROM feed will be defined by grade control procedures in the pit, and delivered by truck to ........

Flow Sheet:
Flow Sheet:
Summary:

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Projected Production:
All production numbers are expressed as concentrate.
Operational Metrics:
Metrics | |
Stripping / waste ratio
| 4.6 * |
Waste tonnes, LOM
| 89,323 kt * |
Ore tonnes mined, LOM
| 24,894 kt * |
Total tonnes mined, LOM
| 114,217 kt * |
Tonnes milled, LOM
| 24,894 kt * |
* According to 2017 study.
Reserves at December 31, 2018:
Category | Tonnage | Commodity | Grade | Contained Graphite |
Probable
|
24.9 Mt
|
Graphite
|
6.2 %
|
1,544 kt
|
Indicated
|
31.1 Mt
|
Graphite
|
6.9 %
|
2,150 kt
|
Inferred
|
15 Mt
|
Graphite
|
6 %
|
890 kt
|
Total Resource
|
46.1 Mt
|
Graphite
|
6.6 %
|
3,040 kt
|
Commodity Production Costs:
| Commodity | Units | Average |
Cash costs
|
Graphite
|
USD
|
632 / t *
|
Assumed price
|
Graphite
|
USD
|
1,435 / t *
|
* According to 2017 study / presentation.
2017 Study Costs and Valuation Metrics :
Metrics | Units | LOM Total |
Pre-Production capital costs
|
$M USD
|
......
|
Gross revenue (LOM)
|
$M USD
|
......
|
EBITDA (LOM)
|
$M USD
|
......
|
Pre-tax Cash Flow (LOM)
|
$M USD
|
......
|
After-tax Cash Flow (LOM)
|
$M USD
|
......
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Pre-tax NPV @ 10%
|
$M USD
|
......
|
Pre-tax IRR, %
|
|
......
|
Pre-tax payback period, years
|
|
......
|
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Corporate Filings & Presentations:
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