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Inmets Balboa Copper Gold Discovery June 1st, 2011 Webcast
Balboa grades and copper gold ratios are
getting significantly better at depth
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2
-
million
tonnes
Cu
(%)
Au
(g/t)
Ag
(g/t)
Mo
(%)
Cu Eq
(%)(a) Cu
(b lbs)
Au
(m ozs)
Cu Eq
(b lbs)(a)
Proven 245 0.59 0.14 1.61 0.010 0.70 3.2 1.1 3.8
Probable 1,897 0.39 0.06 1.41 0.007 0.46 16.3 3.7 19.1
Proven and probable* 2,143 0.41 0.07 1.43 0.008 0.49 19.5 4.8
23.1
million
tonnes
Cu
(%)
Au
(g/t)
Ag
(g/t)
Mo
(%)
Cu Eq
(%)
Cu
(b lbs)
Au
(m ozs)
Cu Eq
(b lbs)
Measured 261 0.56 0.13 1.5 0.009 0.67 3.2 1.1 3.8
Indicated 3,010 0.34 0.06 1.2 0.006 0.40 22.6 5.8 26.6
Measured and indicated 3,271 0.36 0.06 1.3 0.007 0.43 25.8 6.9
30.7
Inferred 3,194 0.24 0.04 1.0 0.005 0.29 16.9 4.1 20.2
Measured and Indicated
Resources*
Inferred
Resources*
* from 2010 FEED report
Botija Colina
Valle Grande
Cobre Panama Resources 2010
-
Cu P+P Reserves Cu Eq P+P Reserves
4
-
5
-
Measured &
6
BALBOA DISCOVERY
Plant Site
Botija Crusher Site
Second Crusher Site
-
Holes previously reported
New holes
2.32 % Cu and 2.28 g/t Au (3.9 % CuEq)(b) over 124 m
0.95 % Cu and 0.43 g/t Au (1.3 % CuEq)(b)
over 200 m
7
-
> 0.50% Cu
0.85% Cu
0.26 g/t Au
36 m
0.92% Cu
0.40 g/t Au
113 m
0.61% Cu
0.11 g/t Au
108 m
0.67% Cu
0.21 g/t Au
196m
2.32% Cu
2.28 g/t Au
124 m
> 0.15% Cu
0.63% Cu
0.24g/t Au
37 m
1.41% Cu
1.29 g/t Au
-------------
222 m
0.41% Cu
0.06 g/t Au
-------------
317 m
0.49% Cu
0.14 g/t Au
-------------
313 m
0.55% Cu
0.19 g/t Au
-------------
277 m
0.39% Cu
0.11 g/t Au
-------------
317 m
0.26% Cu
0.07 g/t Au
-------------
221 m
0 200 400
metres
8
W E
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> 0.50% Cu
> 0.15% Cu
0.41% Cu
0.06 g/t Au
-------------
317 m
0.30% Cu
0.04 g/t Au
-------------
320 m
0.65% Cu
0.26 g/t Au
-------------
364 m
0.61% Cu
0.11 g/t Au
108 m
0.58% Cu
0.05 g/t Au
239 m
0.54% Cu
0.09 g/t Au
32 m
0.95% Cu
0.43 g/t Au
200 m
0.45% Cu
0.04 g/t Au
-------------
455 m
0 200 400
metres
9
S N
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Classic A veins in porphyry Bornite
Intense stockworks
10
-
(1) Copper Equivalent calculated using US $2.25/lb Cu, US
$1000/oz Au, US $13.50/lb Mo and US $15.00/oz Ag and is not
adjusted for metallurgical recoveries as these remain uncertain.
The formula used is as follows Cu Eq = Cu %+ (Au g/t x 0.65) + (Mo
ppm / 1667) + (Ag g/t x 0.01)
(2) Under National Instrument 43-101 Standards of Disclosure for
Mineral Projects (NI 43-
101), these potential tonnage and grade estimates are conceptual
in nature, as there has
been insufficient exploration to define a mineral resource, and
it is uncertain if further
exploration will result in the targeted deposit being delineated
as a mineral resource.
Cu % Cutoff Tonnes
(millions)Cu % Au g/t Cu Eq %
(1)
Contained
Cu
(billions lbs)
Contained
Au
(millions ozs)
Contained
CuEq
(billions lbs)
greater than
0.15500 to 600 0.40 to 0.50 0.15 to 0.19 0.50 to 0.60 4.4 to 6.6
2.4 to 3.6 5.5 to 8.2
greater than
0.30300 to 360 0.55 to 0.65 0.20 to 0.30 0.70 to 0.85 3.6 to 5.4
2.1 to 3.2 4.5 to 6.7
greater than
0.50130 to 170 0.80 to 1.00 0.40 to 0.50 1.00 to 1.30 2.4 to 3.6
1.8 to 2.7 3.0 to 5.0
11
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Balboa Contour Plan Map 0.15% Cu cut-off CuEq grade X thickness
metres
12
-
11 km
1.5
km
Oyu Tolgoi
100 B lbs CuEq(c)
Cobre Panama
50+ B lbs
CuEq(d)
Not including
Balboa
Pebble
160 B lbs CuEq(e)
1.5
km
1.5
km
Hole CC11-10
13
-
14
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Cu
%
Au
g/t
First 10 year Feed in Current Mine Plan 0.55 0.11
0.30% Cu Cutoff Potential Mineralization Grade 0.60 0.25
Difference 1.1 X 2.3 X
15
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16
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17
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18
