Projects
- Blue Ridge
BLUE RIDGE SUMMARY
- Development commenced January 2007
- Mineral Resources totaling 5.34 million ounces 4PGE
- Bankable Feasibility Study completed end 2005
- Mine planned to produce 149,000 ounces 6 PGE per annum
- Offtake Agreement signed with Impala Platinum
- Banking finance signed for US$107 million.
- 50% owned by BEE Company, Imbani Platinum
- First production planned fourth quarter 2008
LOCATION AND LICENCE
The Blue Ridge project is situated on the farm Blaauwbank, approximately
30 kilometres Southeast of Groblersdal, on the eastern limb of the
Bushveld Complex, South Africa. An "old order" mining
permit was granted to Ridge in 2004 which gives Ridge the authority
to commence mining on the project. A "new order" mining
right, in line with the new Minerals Act, has been applied for.
EXPLORATION AND RESOURCES
Ridge Mining started work at Blue Ridge in 2001 and has since then
carried out extensive exploration of the area including drilling
92 boreholes with 155 deflections therefrom, high resolution aeromagnetic
surveys, strike and dip trenching and structural mapping.
This resulted in the identification and delineation of the UG2 chromitite
reef along a strike length of 3.6km and extending from surface to
a depth of over 1,000 metres. This reef forms the basis of the Blue
Ridge mineral resource which was estimated in accordance with the
JORC Code and audited by SRK Consulting as follows:
|
Mineral Resource Class |
Tonnage
(Mt) |
4E
(g/t) |
Contained
4E Moz |
| Measured |
26.1 |
3.3 |
2.77 |
| Indicated* |
16.3 |
3.2 |
1.68 |
| Inferred |
8.7 |
3.2 |
0.89 |
|
Total / Average |
51.1 |
3.2 |
5.34 |
* includes approx 1.5Mt from an area under negotiation
METALLURGICAL TESTWORK
The metallurgy of the Blue Ridge UG2 ore has been extensively tested.
Mineralogical studies, laboratory flotation tests, crushing and
milling tests and variability testwork were followed by a 5 day
pilot scale test on a 360 tonne bulk sample of ore extracted from
underground through the excavation of a 100 metre adit. This test,
carried out at Mintek, yielded recoveries into concentrate of 82%-86%.
This recovery rate was reconfirmed by a further pilot plant test
run at Mintek in 2005 using ore excavated from the trial mining
as part of the feasibility study.
FEASIBILITY STUDY AND ORE RESERVES
A feasibility study was completed in December 2005. The study was
carried out by Ridge Mining using experienced consultants of international
repute. SRK (UK) has reviewed the entire study to ensure that all
aspects were completed to "bankable" standard.
The feasibility study is based on processing 120,000 tonnes of
ore per month from three decline shafts. The mining plan utilises
an innovative approach whereby only the higher grade portion of
the reef is mined thereby providing a higher mill feed grade. This
mining method has been termed the "Efficient Cut" and
was successfully proved up through a trial mining programme in 2005
during which over 10,000 tonnes were successfully mined.
The mining plan for the feasibility study only took into account
ore down to a depth of approximately 800 metres below surface, although
the reef extends below this level. Calculations of the ore reserve
were undertaken by Snowden Mining Ore Reserve Industry Consultants
P/L of Australia in accordance with the JORC Code.:
|
Ore Reserve Classification |
Tonnage
(Mt) |
4E
(g/t) |
Contained
4E Moz |
| Proved |
14.8 |
3.3 |
1.55 |
| Probable* |
6.9 |
3.3 |
0.72 |
|
Total / Average |
21.7 |
3.3 |
2.27 |
* includes approx 1.5Mt in 1.2Mt in reserves from an area under
negotiation
FORECAST PRODUCTION
The forecast annual production is approximately 124,500 ounces
4E (149,000 ozs 6E) per annum over an 18 year period, broken down
as follows:
|
Metal |
Annual Production
(Ounces) |
| Platinum |
75,000 |
| Palladium |
35,000 |
| Rhodium |
13,000 |
| Gold |
1,500 |
| Ruthenium |
22,000 |
| Iridium |
2,500 |
|
Total |
149,000 |
An Offtake Agreement has been signed with Impala Refining Services
under which Impala has committed to acquire all the proposed production
from the Blue Ridge Mine.
An Offtake Agreement has been signed with Impala Refining Services under which Impala has committed to acquire all the proposed production from the Blue Ridge Mine.
In June 2007. Imbani Platinum acquired a 50% interest in the project by investing Rand 340 million (US$50 million) of equity towards the project’s development. In December 2007, project finance agreements were signed with a consortium of banks consisting of The Development Bank of Southern Africa, The Industrial Development Corporation of South Africa, Standard Bank and Investec Bank for Rand 715 million (US$104 million) following which the project is fully financed through to first production.
Mine development commenced in the first quarter of 2007 and first production is on schedule for fourth quarter 2008.
|