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7
Located about 45
kilometres northwest
of Marathon, Ontario,
Nuinsco’s Prairie
Lake property covers
the entire 2.8 km
2
(
at
surface) Prairie Lake
Carbonatite Complex, is located just
28
km north of the TransCanada Highway
and has year-round road access.
Prairie Lake hosts a National Instrument
43-101-
compliant Exploration Target
Mineralization Inventory (“ETMI”)
totaling 515 – 630 million tonnes grading
between 0.09-0.11% niobium (0.9 to
1.1
kg/tonne Nb
2
O
5
)
and 3.0-4.0%
phosphorus (1.2 to 1.4 kg/tonne P
2
O
5
).
This tremendous tonnage places Prairie
Lake well within the ranks of the
ten largest carbonatite-hosted
niobium deposits in the world.
In North America Prairie Lake is
second only to the Iron Hill Project
in Colorado, owned by Colorado
Rare Earths Inc., in contained
tonnes (the average grade at Prairie
Lake is, however, greater). All of
the mineralization is exposed at
surface and much of it could be
exploited by simple quarrying methods.
The suite of minerals of potentially
economic significance also includes
tantalum (Ta
2
O
5
),
uranium (U
3
O
8
)
and
rare earth elements (REE) (including
lanthanum (La), cerium (Ce), samarium
(
Sm), neodymium (Nd) and yttrium (Y)).
Only a small percentage of the
surface area of the 100%-owned Prairie
Lake carbonatite has been significantly
explored and is included in the ETMI.
Nuinsco is currently producing
phosphorus concentrate to evaluate
agricultural and industrial applications.
prairie lake
ontario
Location:
Ontario, Canada
Ownership:
100%
Commodity:
Multiple Commodities -
P, Nb, Ta, REEs, U
Project Status: Exploration
Main/SW Jim’s Showing
East
NE
Total
Tonnes (million)
435-530
35-45
40-50
7-8
515-630
P
2
O
5
(%)
3.0-4.0
3.5-4.5
2.5-3.0
2.5-3.5
3.0-4.0
Nb
2
O
5
(%)
0.095-0.115
0.100-0.120
0.040-0.050
0.085-0.105
0.090-0.110
Ta
2
O
5
(
ppm)
18-25
25-30
5-7
10-12
18-21
U
3
O
8
(%)
0.005-0.007
0.015-0.020
0.002-0.003
0.004-0.005
0.006-0.007
La (ppm)
275-340
295-360
305-370
200-250
280-340
Ce (ppm)
650-790
670-820
670-820
450-550
650-790
Sm (ppm)
55-70
55-70
55-70
50-60
55-70
Nd (ppm)
295-360
290-360
320-390
235-290
300-360
Y (ppm)
85-100
90-110
80-100
135-170
85-100
La+Ce+Sm+Nd+Y (ppm)
1360-1660
1400-1720
1430-1750
1070-1320
1370-1660
Volume-m
3
(
million)
140-175
12-14
13-16
2-3
170-210
Prairie Lake ETMI
1
1
The potential quantity and grade of the ETMI is conceptual in nature and there has been insufficient exploration to define a mineral resource. It is uncertain if further
exploration will result in the discovery of a mineral resource. The ETMI was undertaken by Eugene Puritch, P.Eng. andAntoine Yassa, P.Geo of P&E Mining Consultants
Inc. of Brampton, Ontario.All exploration work is supervised by Paul Jones, P.Geo, President, who acts as Nuinsco’s Qualified Person under National Instrument 43-101.
Mr. Jones has reviewed and approved the contents of this disclosure. The potential quantity and grade of the ETMI is conceptual in nature and there has been insufficient
exploration to define a mineral resource. It is uncertain if further exploration will result in the discovery of a mineral resource.