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Bisha Reserve
Announcement
October 5, 2006
BISHA RESERVE ANNOUNCEMENT
Nevsun Resources Ltd. (NSU-TSX and AMEX)
is very
pleased to announce the mining reserve for
the Bisha Project in Eritrea. The mining
reserve has been estimated by AMEC Americas
Limited (AMEC), Vancouver Canada, as part of
the feasibility study it is completing for
the Bisha Project.
HIGHLIGHTS:
Minerals
- Gold, Copper, Zinc, Silver
|
Life of
Mine |
-
+ 10 years open pit mine modeled at
2 million tonnes per year of ore
production |
Reserves
|
Oxide |
Tonnes
|
Au
(g/t) |
Ag
(g/t) |
|
Proven |
663,000 |
6.87 |
28.93 |
|
Probable |
3,353,000 |
8.21 |
33.62 |
|
Combined |
4,016,000 |
7.99 |
32.85 |
|
Supergene |
Tonnes
|
Cu
(%) |
Au
(g/t) |
Ag
(g/t) |
|
Proven |
808,000 |
5.10 |
0.81 |
44.74 |
|
Probable |
5,542,000 |
4.30 |
0.83 |
34.71 |
|
Combined |
6,350,000 |
4.40 |
0.83 |
35.98 |
|
Primary |
Tonnes
|
Zn
(%) |
Cu
(%) |
Au
(g/t) |
Ag
(g/t) |
|
Proven |
353,000 |
11.38 |
1.10 |
0.82 |
65.56 |
|
Probable |
9,360,000 |
7.05 |
1.15 |
0.76 |
53.57 |
|
Combined |
9,713,000 |
7.21 |
1.14 |
0.76 |
54.00 |
|
TOTAL Combined Tonnes |
20,079,000 |
Proven and
probable reserves are considered to be
“ore”, which by definition is economically
recoverable. The feasibility study will
provide detail regarding those economics.
Lydell
Melnyk, P. Eng. AMEC Senior Mining Engineer,
is a Qualified Person under instrument
43-101 and is responsible for the mining
portion of the reserve estimate. The
resource portion of the reserve estimate was
disclosed in the Company’s news release
dated January 10, 2006.
Feasibility Study
The Company
expects to provide a summary of the results
of the Bisha Project feasibility study
during the week of October 10, 2006.
The
Deposit
Bisha is a
high grade gold, silver and base metal-rich
volcanogenic massive sulphide (VMS) deposit.
The Bisha deposit is in three distinct
layered zones – a 35m thick surface oxide
zone having a high gold and silver content
immediately overlying a 30m thick copper
enriched supergene which itself overlies a
primary sulphide zone containing both zinc
and copper.

The metal
prices used for the reserve estimation were
at historically conservative levels (Au
$400/oz, Cu $1.05/lb, Zn $0.50/lb, Ag
$6.00/oz).
The
metallurgical recoveries for the ore may be
found in the Company’s news release dated
July 17, 2006. News releases can be found on
the Company’s web site (www.nevsun.com)
well
as on Sedar at
www.sedar.com
and EDGAR at
www.sec.gov/edgar/searchedgar.
The current
plan is to mine and process each zone in
succession starting with the top oxide zone
and to process ore at the rate of 2 million
tonnes per year. In the first two years of
production, gold and silver will be
extracted together from the oxide ore and
flown to bullion refiners as dore. This
will be followed by production of copper
concentrate from the supergene ore in Years
3 to 5 and with production of zinc
concentrate and copper concentrate from the
primary sulphides in Years 6 to 10. The
concentrates will be shipped to
international markets via a storage facility
at the port of Massawa.
Opportunities
Opportunities
that could significantly enhance the project
include:
(1) expansion
of mining to an underground operation as the
Bisha deposit is open at depth;
(2) metal prices - at current commodity
prices, modeling of the known deposit,
including inferred resources, demonstrates a
potential additional 8 years mine life as a
result of enlarging the pit and going to
depth;
(3) development of additional deposits
already identified through exploration (Harena
and Northwest Zone);
(4) AMEC has identified additional indicated
primary sulphide resources that have not
been included in the estimate of reserves
(which mostly lie within the waste envelop
of the Bisha open pit). Approximately 4.7
million tonnes of 1.15% copper were
identified after the start of the
development of the mining study. The
Company has disclosed the above under news
release dated January 10, 2006,
(5) a near surface hanging wall copper zone
has been discovered at the western margin of
the open pit, as defined by drill
intersections of 2.11% Cu over 19.6 m and
2.64% Cu over 12.0 m.
This zone may have
the potential to be added to the resource in
the future. The Company has disclosed
of this in its news release dated April 25,
2006.
All of these
may provide life extension opportunities for
Bisha.
Forward Looking
Statements: The above contains forward
looking statements that are subject to a
number of known and unknown risks,
uncertainties and other factors that may
cause actual results to differ materially
from those anticipated in our forward
looking statements. Factors that could
cause such differences include: changes in
world commodity markets, equity markets,
costs and supply of materials relevant to
the mining industry, extent of resources
actually contained in mineral deposits,
actual recoveries achieved in processing
ore, technological change, weather
conditions, change in government and changes
to regulations affecting the mining
industry. Forward-looking statements in
this release include statements regarding
future news release dates, mining,
processing and shipping plans and timelines
and future opportunities providing mine life
extension. Although we believe the
expectations reflected in our forward
looking statements are reasonable, results
may vary, and we cannot guarantee future
results, levels of activity, performance or
achievements.
| NEVSUN RESOURCES
LTD.
“John A. Clarke”
Dr. John A. Clarke
President & Chief Executive Officer
NSU06-25 |
For further information, Contact:
Judy Baker
(604)
623-4704 or
(416) 786-7860 or
1-888-600-2200
e-mail:
nevsuninfo@nevsun.com
Website:
www.nevsun.com |
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