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IGO LIMITED Capital/Financing Update 2006

Sep 13, 2006

65111_rns_2006-09-13_0cfc8674-ad42-4f81-81f9-8f8e6d51b13c.pdf

Capital/Financing Update

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14 September 2006

Australian Stock Exchange Limited Company Announcements Level 10, 20 Bond Street SYDNEY NSW 2000

NO. OF PAGES : (6)

LONG NICKEL MINE - JUNE 2006 ORE RESOURCES AND RESERVES

Highlights

  • Long Nickel Mine Resources: 1,367,000t at 5.6% Ni (76,700 Ni t)
  • Long Nickel Mine Reserves: 1,114,000t @ 4.2% Ni (46,800 Ni t)
  • At current production rates, mine life has been extended to at least 2011
  • The following recent McLeay extension drilling intercepts have yet to be incorporated into resources and reserves:
  • McLeav Shoot 1: 9.0 $m \omega$ 4.6% Ni (5.0 $m$ true width) located 65 $m$ south of the current McLeay Shoot 1 ore reserve boundary and is open to the south
  • McLeav Shoot 2: 16.3m @ 14.3% Ni (3.5m true width) located 150m south of the current McLeay Shoot 2 reserve boundary and is also open to the south

Drilling to define new resources and reserves south of McLeay will continue throughout 2006/7

  • Intersections at the northern end of the Long South Target (0.76m @ 10.1% Ni, 3.6m $@$ 3.3% Ni and 2.45m $@$ 3.1% Ni) and a transient electromagnetic (TEM) conductor further south of these intercepts may also add to resources and reserves
  • Independence has budgeted over \$6 million for 2006/7 to continue McLeay and Long South decline development and exploration drilling

Independence is pleased to announce a new JORC-compliant reserve at the Long Nickel Mine (Figure 1).

Figure 1: Long Nickel Mine - Longitudinal Projection Showing Ore Reserves, Targets and Significant Intercepts Outside Current Reserves and Resources.

To 30 June 2006, the Company had mined 27,618 tonnes of nickel metal.

The average reserve grade has increased from 3.8% Ni in June 2005 to 4.2% Ni.

The reserve nickel tonnage has decreased by 2,570t Ni (5%) between the June 2005 and June 2006 reserve estimation due to:

  • 2005/6 production of 8,897t Ni with 5,536t Ni depleted from the reserve and the remaining 3,361t Ni being mined outside or in excess of 2005 reserves.
  • Additional geological information from mining reducing the Victor South and $\blacksquare$ McLeay reserves by 1,200t Ni and 600t Ni respectively. This was primarily due to a better understanding of the structure and more barren porphyrys stoping out the ore than previously modelled.
  • 1,200t Ni loss due to previously unknown voids in pillars and the reclassification of previous ore blocks to the unextractable category due to geotechnical or access issues

Despite these ore losses exploration during the year extended mine life from 2010 to 2011.

Recent intercepts of 9m @ 4.6% Ni and 16.3m @ 14.3% Ni south of the current McLeay resource/reserve boundary have not yet been included in the June 2006 ore resources or reserves (Figure 2). Drill-drive decline development and drilling will continue throughout 2006/7 with the aim of converting these extensions to resources and reserves.

Step-out drilling will also continue to test for extensions south of these intercepts.

Intersections at the northern end of the Long South Target (0.76m @ 10.1% Ni, 3.6m @ 3.3% Ni and 2.45m @ 3.1% Ni) and a TEM conductor further south of these intercepts, may also add to resources and reserves (Figure 3).

Figure 2: McLeay Shoots 1 and 2 Longitudinal Projection Showing Shoot Locations and New Extensions Outside Ore Reserves to the South.

Figure 3: Long South Exploration Decline Plan Showing Significant Drill-Hole Hits and Nickel % x Thickness (m) Mineralisation Envelopes and TEM Conductor, Open to the South.

Undiluted Resources at 1% Ni Cut-off 2
as at 30 June 2005
Undiluted Resources at 1% Ni Cut-off 3
as at 30 June 2006
Tonnes Ni % Ni Tonnes Tonnes Ni % Ni Tonnes
Long Shaft Measured 357,000 7.0 25,000 268,000 7.1 19,100
Indicated 399,000 5.8 23.200 335,000 5.8 19,500
Inferred 33,000 4.8 1.600 29,000 4.1 1,200
Sub-Total 789,000 6.3 49,800 632,000 6.3 39,800
Victor South Measured $\mathbf{r}$ $\cdot$ $\blacksquare$ $\overline{\phantom{a}}$ $\tilde{\phantom{a}}$
Indicated 468,000 4.1 19,300 422,000 3.8 16,100
Inferred $\overline{a}$ ٠, $\cdot$
Sub-Total 468,000 4.1 19.300 422,000 3.8 16,100
Victor Measured $\sim$ $\overline{a}$ $\sim$ $\blacksquare$ $\overline{r}$
Indicated 3.700 6.1 200
inferred ٠ $\cdot$
Sub-Total 3.700 6.1 200
Gibb South Measured 6.900 5.1 400 $\blacksquare$ $\blacksquare$ $\blacksquare$
Indicated 6.500 3.6 200
inferred 11.700 2.4 300
Sub-Total 25,100 3.5 900 ٠ $\overline{r}$
Mei.eav Measured $\sim$ ÷. $\sim$ $\tilde{\phantom{a}}$ $\overline{\phantom{a}}$ ۰
Indicated 140.000 7.0 9,800 212,000 7.4 15,600
Inferred 54,000 6.0 3.200 101,000 5.1 5,200
Sub-Total 194,000 6.7 13,000 313,000 6.6 20,800
TOTAL 1,479,800 5.6 83,200 1,367,000 5.6 76,700

Table 1: Long Nickel Mine - Ore Resources - Comparison 2005 to 2006

Table 2: Long Nickel Mine - Ore Reserves - Comparison 2005 to 2006

Mining Reserve at 2.5% Ni Cut-off
as at 30 June 2005 2
Mining Reserve at 2.5% Ni Cut-off
as at 30 June 2006 2
Tonnes Ni % Ni Tonnes Tonnes Ni % Ni Tonnes
Long 12-161. Proven 339,000 4.1 13,500 208,000 4.7 9,800
mechanised Probable 180,000 3.3 5.700 170,000 3.6 6,100
Sub-Total 519,000 3.8 19.200 378,000 4.2 15,900
Long 7-11L Proven 27.000 3.7 1.000 32,000 3.4 1,100
hand-held Probable 115,000 4.5 5.100 129,000 4.3 5,500
Sub-Total 142,000 4.4 6.100 161,000 4.1 6,600
Victor South Proven $\overline{\phantom{a}}$ $\overline{\phantom{a}}$ $\sim$
mechanised Probable 428,000 3.6 15,600 260,000 4.3 11.100
Sub-Total 428,000 3.6 15,600 260,000 4.3 11,100
Victor Proven ٠ $\overline{\phantom{a}}$ $\sim$
mechanised Probable 6.000 3.4 200
Sub-Total 6.000 3.4 200
Gibb South Proven 4,300 3.2 140
hand-held Probable 600 2.8 20
Sub-Total 4.900 3.2 160
Mel.eav Proven ٠ $\sim$ ٠
mechanised Probable 183.600 4.4 8.110 315,000 4.2 13,200
Sub-Total 183,600 4.4 8,110 4 315,000 4.2 13.200
TOTAL 1,283,500 3.8 49,370 1,114,000 4.2 46,800

Notes:

The Competent Persons and Members of the AusIMM or AIG with the appropriate experience in reporting the above are Brett Hartmann and Ian
Taylor of Lightning Nickel Pty Ltd and Mark Zammit of Cube Consulting Pty Ltd. Phil B figures.

Ore tonnes have been rounded to the nearest thousand tonnes and nickel tonnes have been rounded to the nearest hundred tonnes.

$\mathbf{R}$ The cut-off grade used for the Victor South resource is 0.6% Ni.

Reserves Broken Down by Mining Method

Reserves broken down by mining method are as follows:

Mining Method Ni Tonnes
Mechanised flat back 12.400
Mechanised long-hole 22.800
Mechanised room and pillar -600
Air-leg 11.000
TOTAL 46.800

Resource and Reserve Estimation

Resource and reserve estimation methodology is detailed in Appendix 1.

Approximately 29,900 resource tonnes of nickel remain in the Long Mine outside current reserves.

The Company has budgeted over \$6 million in 2006/7 to continue Long, Long South and McLeay exploration decline development and drilling with the aim of increasing the reserve base.

Church D

Christopher Bonwick Managing Director

Note: The information in this report that relates to Exploration Results, Mineral Resources or Ore Reserves is based on information compiled by Mr Christopher M Bonwick who is a full-time employee of the Company and is a member of the Australasian Institute of Mining and Metallurgy. Christopher Bonwick has sufficient experience which is relevant to the style of mineralisation and type of deposit under consideration and to the activity which he is undertaking to qualify as a Competent Person as defined in the 2004 Edition of the 'Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves'. Christopher Bonwick consents to the inclusion in the report of the matters based on his information in the form and context in which it appears.

Forward-Looking Statements: This document may include forward-looking statements. Forward-looking statements include, but are not limited to, statements concerning Independence Group NL's planned exploration program and other statements that are not historical facts. When used in this document, the words such as "could," "plan," "estimate," "expect," "intend," "may," "potential," "should," and similar expressions are forward-looking statements. Although Independence Group NL believes that its expectations reflected in these forward-looking statements are reasonable, such statements involve risks and uncertainties and no assurance can be given that actual results will be consistent with these forward-looking statements.

Board of Directors
Rod Marston
Chris Bonwick
Kelly Ross
John Christie
Oscar Aamodt
Non-Executive Chairman
Managing Director
Executive Director
Non-Executive Director
Non-Executive Director
Stock Exchange Listing
Australian Stock Exchange
ASX Code: IGO
Capital Structure
Ordinary Shares
112,833,607
Contact
Address:
Telephone:
Facsimile:
Email:
Website:
PO Box 893
South Perth, WA, 6951
$(08)$ 9367-2755
$(08)$ 9367-3288
[email protected]
www.igo.com.au
Unlisted Options
Various Expiry Dates
4,484,350
Share Registry
Security Transfer Registrars Pty Ltd
770 Canning Highway
Applecross, WA 6153
Telephone:
Facsimile:
$(08)$ 9315-0933
(08) 9315-2233
Substantial Shareholders
MIR Investment Management
Barclays Global Investors Australia
7.24%
5.27%

Appendix I

June 2006 Resource Estimation Parameters

The resource was estimated using 2D and 3D metal accumulation of grade, thickness and density interpolated by kriging.

Data

The following geological information and data were incorporated into the estimation process:

  • Drill-hole data $\bullet$
  • Ore and porphyry intrusive (barren) locations defined by underground mapping and drilling
  • Survey pick up of mining depletion boundaries $\bullet$
  • X-Pillar outlines (non-recoverable) $\bullet$

Cut-offs, Modelling Technique and Cell Size

$-613302$ Andrew South McLeav
Lower cut offs 1.0% Ni $0.6\%$ Ni 1.0% Ni
Modelling technique 2D longitudinal kriging $01, 04$ Surfaces $-3D$
ordinary block kriging
02 Surface - horizontal
2D planar kriging.
Horizontal 2D planar
kriging,
Parent cells $10mN \times 8m$ RL 10mN x 4mE x 4mRL $10mN \times 4mE \times 4mRL$
Block discretisation
points (metres)
2D interpolation - $5 \times 5 \times$
1 (XYZ)
3D interpolation - $4 \times 5$
x 2 (XYZ)
2D interpolation $-5 \times 5$
$x + (XYZ)$
2D interpolation - $5 \times 5$
$x + (XYZ)$

Mining Depletion, Pillars and Porphyry Intrusives

Mining depletion i. Depletion areas were stamped into each mineralised surface of Long
using 2D string outlines. Depletions areas in Victor South and Meleay
were constrained by 3D survey pickups of the mined areas.
X-Pillar (non-recoverable) ٠ X-Pillars were stamped into each mineralised surface using 2D string
outlines.
Porphyry Intrusives $\blacksquare$ Porphyry intrusion wire frames $(0.01\% \text{ Ni}, 2.7t/\text{m}^3)$ were used to
constrain the porphyry interpretation within the ore models.

June 2006 Reserve Estimation Parameters

The reserve was estimated using stoping wire frames overlaid on resource block models.

recoveries.

Reserve estimation parameters are as follows:

Nickel metal price $\mathbf{m}$ . $\mathbf{m}$ AUS \$15,700t Ni (in-house estimate)
Grade cut-off $\sim$ 2.5% Ni lower cut
This cut-off has been used as an average for a combination of stoping
methods and includes all operating costs and expected nickel
Extractions and dilution factors: Extraction Dilution
Long-hole stopes 95% 25%
Flat-back stope 100% 5%
Room and pillar stopes 80% 5%
Air-Leg slotting 90% 5%
Geotechnical loss $\blacksquare$
remnant nature of the reserves in this area.
$1.3\%$ subtracted from reserves in the Long deposit to represent the

Stopes were designed in 3 dimensions using the above inputs and Method $\overline{a}$ resource block models. Final reserves were estimated after the subtraction of porphyry, unextractable X-Pillars and mining depletion.