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ACROW LIMITED Environmental & Social Information 2012

Oct 10, 2012

64288_rns_2012-10-10_e5013e97-7637-4af6-9a29-fd334a97c8d9.pdf

Environmental & Social Information

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11 October 2012

INDEPENDENT STUDY CONFIRMS AND UPGRADES GOLD RESERVES

  • Independent confirmation of previous resource and reserve modelling, increasing confidence in project

  • Upgrade in the Bibiani Gold Project’s gold reserves to 972,000 oz

  • Gold resources of 2.8 million ounces, an increase of 24% from November 2011 Additional positive drill results from ongoing grade control and exploration programs

Noble Mineral Resources (ASX: NMG) is pleased to provide an update on the independent Mining Study (“Study”) conducted by Coffey Mining for its Bibiani Gold Project in Ghana, which has confirmed an upgrade in the size and quality of its gold reserve base.

The Study, which was completed this week, focussed on four pit areas within the Project and included a comprehensive review of Noble’s resources and updated geological models, pit designs and mine schedules.

The Coffey Study verifies the previous reserve and resource modelling work undertaken by Noble, and has delivered an increase (net of ore depletion from mining) in the total ore reserves for those pits to 912,000 ounces of gold ( see Table 1) . Noble’s global gold reserves now stand at 16.0Mt @ 1.9g/t (972Koz). S ee Table 5 .

Importantly, the Study used tighter modelling and more conservative parameters than the previous work, which increases the quality of reserves and confidence of the Project.

The primary increase in reserves has come from an improvement in grade at the Main Pit, where reserves were upgraded from 12.0Mt @ 2.05g/t (790Koz) to 11.5Mt @ 2.2g/t (820Koz). See Table 1 and 2 below.

The upgrade in reserves follows a previously announced 24% increase in total gold resources at Bibiani, after earlier resource modelling work completed by Coffey Mining. Total Resources at Bibiani are 51.4Mt @ 1.7g/t (2.8Moz). See Table 4 .

Noble Managing Director Wayne Norris said the study provided Noble and its shareholders with an increased level of confidence in its minerals resources and reserve base, and its mine development strategy.

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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“The independent study has verified the work undertaken previously by Noble, despite using significantly more conservative assumptions. Along with the increases reported in both reserves and resources, this should provide all stakeholders with enhanced confidence in the project. While the Company’s primary focus is now on reaching target production levels of 150,000oz per annum, we continue to see significant potential to expand the Bibiani resource base even further,” Mr Norris said.

The Coffey Mining study is based on the Main, Walsh, Strauss, and Elizabeth gold deposits (see map on page 4). In addition, a number of mine production scenarios were assessed that included inhouse Noble produced resources/reserves of Strauss South, Grasshopper and Aheman plus mineralised tailings. The Study also looked at mine production scenarios that included and excluded Inferred Resources. The scope of work included estimation of mining recovery and dilution, pit optimisation, mine design and scheduling leading to a declaration of reserves.

Table 1:

Bibiani Gold Project Updated Ore Reserve Summary Provided by Coffey Mining as at September 2012

Classification Classification Classification Classification
Deposit Proved Probable Total Cont’d Gold
[Mt] g/t Mt g/t Mt g/t Koz
Main
Walsh
Strauss
Elizabeth
5.8
0.5
0.05
-
2.4
1.8
1.5
-
5.7
0.9
0.3
0.04
2.1
1.8
1.4
0.9
11.5
1.3
0.3
0.04
2.2
1.8
1.4
0.9
820
77
14
1
Total 6.3 2.3 6.9 2.0 13.2 2.1 912

Table 2:

Bibiani Gold Project Previous Ore Reserve Summary for the Same Deposits as Table 1 Provided by Noble as at November 2011

Proved Proved Probable Probable Total Total Cont’d Gold
Deposit
Mt g/t Mt g/t Mt g/t Koz
Main
Walsh
Strauss
Elizabeth
5.02
1.07
-
-
2.16
2.00
-
-
6.98
0.93
0.33
-
1.97
1.95
1.62
-
12.00
1.16
0.33
-
2.05
2.00
1.62
-
790
74
17
0
Total 6.09 2.13 7.38 1.96 13.5 2.04 881

Derived from Measured and Indicated Mineral Resources using a cut‐off grade of 0.6g/t for Main Pit and 0.5g/t for remaining pits. Figures have been rounded and totals may reflect small rounding errors.

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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Upgrade in resources

In July and September 2012, Noble announced an increase in the JORC compliant Mineral Resource estimate for the Bibiani Gold Project’s Main Pit and Satellite deposits respectively, which was also undertaken by Coffey Mining. This represented a 24% increase on the previous resource position as at November 2011 which was 41.1Mt @ 1.71g/t (2.26Moz), and was primarily due to a significant increase in the Main Pit and Walsh-Strauss inferred resources. The resources have been depleted for mining at Aheman, Strauss and Strauss South pits as well as the mineralised tailings.

The updated estimate comprising of measured, indicated and inferred resources now stands at 51.4 million tonnes at 1.7g/t Au, for 2.8 million contained ounces of gold. See resource statement in Table 4 below.

Recent drilling results

Noble is also pleased to announced results from its ongoing drilling program at Bibiani, where it has been undertaking a RC program of grade control drilling at the Grasshopper project, as well as exploration drilling program between the Aheman and Grasshopper deposits. Further results from this program were received in September, with best results listed in Table 3 below.

Table 3:

Summary of significant intersections

17th Aug to 30th September 2012

Hole ID Depth From
(m)
Depth To
(m)
Length
(m)
Grade
(g/t)
Including
Grade Control
GRGC 046 32 40 8 1.35
34 35 **2m@ 3.33g/t **
GRGC 056 0 8 8 1.43
0 2 **2m@ 2.55g/t **
GRGC 048 20 27 7 1.28
23 24 **1m@ 4.76g/t **
GRGC 066 39 46 7 2.10
41 42 **1m@ 7.49g/t **
GRGC 032 1 6 5 1.05
1 2 **1m@ 2.39g/t **
GRGC 049 28 33 5 1.35
30 31 **1m@ 4.22g/t **
41 43 2 2.42
42 43 **1m@ 4.15g/t **
Exploration
AMGR12_093 67 70 3 2.57
67 68 **1m@ 6.89g/t **
AMGR12_166 18 21 3 2.26
19 21 **2m@ 3.18g/t **

(A full table of drill results is included as Appendix 1)

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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The Company currently has a program of grade control drilling underway at the Strauss pit, and is set to re-commence a program of drilling across areas of inferred material contained within the designed pit areas to improve the resource classification with an expectation to further lift reserves.

Noble is also planning for a wider exploration program across new gold targets at the Bibiani, Bibiani North, Asuontaa and Cape Three Points prospects, which have been identified by previous soil sampling and geochemical work.

Bibiani Gold Project – Location Map

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Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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Table 4:

BIBIANI GOLD PROJECT – JORC RESOURCE STATEMENT

BIBIANI MAIN PIT AREA TONNAGE GRADE CONT'D GOLD
05 /t cut-off
July 2012 . g (Mt) (Au g/t) (Koz)
Measured 6.50 2.4 493
BIBIANI MAIN PIT Indicated 10.48 2.0 666
Total M&I 16.98 2.2 1,158
Inferred 24.66 1.7 1,355
Total 41.64 1.9 2,513

Global Mineral Resource Estimate based on a cut-off grade of 0.5g/ t

SATELLITE AREAS TONNAGE GRADE CONT'D GOLD
04 /t cut-off
August 2012 . g (Mt) (Au g/t) (Koz)
Measured 0.88 1.4 40
WALSH-STRAUSS Indicated 1.80 1.4 83
Inferred 3.19 1.1 114
Measured - - -
ELIZABETH
Indicated 0.26 0.7 6
Inferred 0.19 0.6 4
TOTAL 6.32 1.2 247

Global Mineral Resource Estimate based on a cut-off grade of 0.4g/t

SATELLITE AREAS TONNAGE GRADE CONT'D GOLD
04 /t cut-off
September 2012 . g (Mt) (Au g/t) (Koz)
Measured - - -
AHEMAN Indicated 0.53 0.7 12
Inferred - - -
Measured - - -
GRASSHOPPER Indicated 0.44 1.3 18
Inferred - - -
Measured - - -
OLD TAILINGS*
Indicated 2.49 0.6 51
Inferred - - -
Total 3.46 0.8 81

Global Mineral Resource Estimate based on a cut-off grade of 0.4g/t * Cut-off grade 0.0g/t

Figures have been rounded and totals may reflect small rounding errors.

TOTAL RESOURCES = 51.4Mt @ 1.7g/t (2.8Moz)

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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Table 5:

BIBIANI GOLD PROJECT - PROVED AND PROBABLE JORC ORE RESERVES

Bibiani Main Pit
September 2012
Bibiani Main Pit
September 2012
Bibiani Main Pit
September 2012
Bibiani Main Pit
September 2012
Tonnage (Mt) Grade (g/t) Ounces (Koz)
Proved 5.80 2.4 440
Probable 5.70 2.1 380
Total
11.50
2.2
820
Derived from Measured and Indicated Mineral Resources using a cut‐off grade of 0.6g/t
11.50 2.2 820
Walsh, Strauss and Elizabeth Satellite Pits
September 2012
Walsh, Strauss and Elizabeth Satellite Pits
September 2012
Walsh, Strauss and Elizabeth Satellite Pits
September 2012
Walsh, Strauss and Elizabeth Satellite Pits
September 2012
Tonnage (Mt) Grade (g/t) Ounces (Koz)
Proved 0.55 1.8 30
Probable 1.20 1.7 64
Total 1.75 1.7 92
Derived from Measured and Indicated Resources using a cut‐off grade of 0.5g/t

Aheman, Grasshopper and Strauss South Satellite Pits

Aheman, Grasshopper and Strauss South Satellite Pits Aheman, Grasshopper and Strauss South Satellite Pits Aheman, Grasshopper and Strauss South Satellite Pits Aheman, Grasshopper and Strauss South Satellite Pits
September 2012
Tonnage (Mt) Grade (g/t) Ounces (Koz)
Proved - - -
Probable 0.24 1.2 9
Total 0.24 1.2 9
Derived from Measured and Indicated Resources using a cut‐off grade of 0.5g/t

Bibiani Tailings Deposits Probable Ore Reserves

Bibiani Tailings Deposits Probable Ore Reserves Bibiani Tailings Deposits Probable Ore Reserves Bibiani Tailings Deposits Probable Ore Reserves Bibiani Tailings Deposits Probable Ore Reserves
September 2012
Deposit Tonnage (Mt) Grade (g/t) Ounces (Koz)
Dams 1 & 2 0.60 0.6 12
Levees 6 & 7 1.89 0.6 38
Total 2.49 0.6 51

Figures have been rounded and totals may reflect small rounding errors.

TOTAL RESERVES = 16.0Mt @ 1.9g/t (972Koz)

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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Authorised by:

Wayne Norris Managing Director

Competent Person’s Statement

The information in this statement that relates to the Bibiani Main Pit, Walsh-Strauss and Elizabeth Mineral Resources are based on information compiled by Mr Brian Wolfe (BSc (Hons), PostGrad Cert, MAIG), who is Member of the Australian Institute of Geoscientists. Mr Wolfe was employed by Coffey Mining at the time of the resource estimates and public release of results. As Mr Wolfe is now no longer employed by Coffey Mining, Coffey Mining has reviewed this presentation and consent to the inclusion, form and context of the relevant information herein as derived from the original resource reports for which Mr Wolfe’s consent has previously been given. Mr Wolfe has sufficient experience relevant to the style of mineralisation and type of deposit under consideration and to the activity which is being undertaken to qualify as a Competent Person as defined in the 2004 Edition of the JORC ‘Australasian Code for Reporting of Exploration Results, Mineral Resources and Ore Reserves’.

Competent Person’s Statement

The reported Mineral Reserves that relates to the Bibiani Main Pit, Walsh pit, Strauss pit and Elizabeth pit Reserves are based on information have been compiled by Mr Harry Warries. Mr Warries is a Fellow of the Australasian Institute of Mining and Metallurgy and an employee of Coffey Mining Pty Ltd. He has sufficient experience, relevant to the style of mineralisation and type of deposit under consideration and to the activity he is undertaking, to qualify as a Competent Person as defined in the ‘Australasian Code for Reporting of Mineral Resources and Ore Reserves' of December 2004 ("JORC Code") as prepared by the Joint Ore Reserves Committee of the Australasian Institute of Mining and Metallurgy, the Australian Institute of Geoscientists and the Minerals Council of Australia. Mr Warries gives Noble Mineral Resources Limited consent to use this reserve estimate in reports in the form and content in which it appears.

Competent Person’s Statement

The information in this announcement that relates to Exploration Results, Mineral Resource or Ore Reserves that is not covered by Coffey Mining Pty Ltd. is based on information compiled by Mr Mark Laing (BE (Hons), Mining), who is a Corporate Member of the Australasian Institute of Mining and Metallurgy. Mr Laing is a fulltime employee of Noble Mineral Resources Ltd, and 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’. Mr Laing consents to the inclusion in this report of the matters based on his information in the form and content in which it appears.

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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Contacts:

Noble:

Wayne Norris Managing Director Tel: +61 (0) 8 9474 6771 Email: [email protected]

About Noble Mineral Resources Limited

Noble Mineral Resources Limited listed on the Australian Stock Exchange on 26[th] June 2008 with a focus on exploring for large-scale gold deposits in the world-class Ashanti Gold Belt in Ghana, West Africa. In November 2009, the Company entered into an agreement for the acquisition of the Bibiani Gold Mine , a project located in the Sefwi-Bibiani Gold Belt in Ghana, host to over 30 Million Ounces of gold. On July 20[th] 2010 the final Share Transfer Form was executed to consummate the purchase.

Noble’s other primary gold concessions are Exploration Licences at Cape Three Points, Brotet and Tumentu, which cover some 141.3km² and all are located within the world-class Ashanti Gold Belt in south western Ghana. Ghana is the second largest gold producer in Africa and is the 7[th] largest gold producing nation in the world, with annual production of approximately 3.3 Million Ounces. Noble’s on-going focus will be to expand the drilling program at Bibiani to target new shallow resources near the Bibiani Mine and adjacent tenements while still progressing the Cape Three Points, Brotet and Tumentu concessions within the Southern extension of the Ashanti Gold Belt. Initial exploration at Cape Three Points will be targeted towards the Satin Mine Project and the Morrison Project , both of which lie in an area of historic underground gold exploration. Noble believes that there is significant potential for the delineation of additional high-grade gold mineralisation relating to the down-plunge and strike extension to these zones. When added to the potential now available at Bibiani it will place Noble in a strong position to achieve its goal in building Australia’s next major gold mining house.

The Company recognises the Bibiani , Cape Three Points, Brotet and Tumentu concessions are relatively under-explored, highly prospective projects and aims to rapidly redefine JORC-compliant resources for development.

ASX Code: NMG

www.nobleminres.com.au

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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Appendix 1

SUMMARY OF SIGNIFICANT DRILLING INTERSECTIONS

17th Aug to 30th September 2012

Including
Hole ID Hole Type Depth From Depth To Length Grade (g/t)
Grade Control
GRGC_046 RC 32 40 8 1.35
34 35 **2m@ 3.33g/t **
GRGC_056 RC 0 8 8 1.43
0 2 **2m@ 2.55g/t **
GRGC_048 RC 20 27 7 1.28
23 24 **1m@ 4.76g/t **
GRGC_053 RC 19 26 7 1.04
24 25 **1m@ 2.42g/t **
GRGC_055 RC 0 7 7 1.38
GRGC_066 RC 39 46 7 2.10
41 42 **1m@ 7.49g/t **
GRGC_032 RC 1 6 5 1.05
1 2 **1m@ 2.39g/t **
GRGC_049 RC 28 33 5 1.35
30 31 **1m@ 4.22g/t **
RC 41 43 2 2.42
42 43 **1m@ 4.15g/t **
GRGC_065 RC 40 45 5 1.22
GRGC_052 RC 9 13 4 1.32
RC 23 24 1 3.10
RC 1 2 1 1.03
GRGC_057 RC 18 21 3 1.91
RC 13 14 1 1.22
GRGC_063 RC 36 39 3 1.70
38 39 **1m@ 2.41g/t **
RC 45 47 2 1.30
RC 0 1 1 1.08
RC 6 7 1 1.73
GRGC_042 RC 3 5 2 2.38
GRGC_045 RC 27 29 2 1.39
GRGC_047 RC 14 16 2 1.12
GRGC_054 RC 35 36 1 1.01
GRGC_058 RC 22 23 1 1.18
GRGC_059 RC 27 28 1 1.46
GRGC_060 RC 3 4 1 1.22
GRGC_036 RC 14 22 8 0.68

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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Including
Hole ID Hole Type Depth From Depth To Length Grade (g/t)
Exploration
AMGR12_161 RC 88 93 5 1.42
RC 52 53 1 1.40
AMGR12_093 RC 67 70 3 2.57
67 68 **1m@ 6.89g/t **
AMGR12_166 RC 18 21 3 2.26
19 21 **2m@ 3.18g/t **
RC 93 94 1 2.14
AMGR12_096 RC 59 61 2 2.28
AMGR12_094 RC 82 84 2 1.51
AMGR12_167 RC 62 63 1 1.05

All assays are bottle roll cyanide leach on a 1kg charge and do not include any fire assays of non-cyanide soluble residue.

Analyses have been undertaken by Performance Laboratory at Bibiani.

Only results >0.5g/t have been reported.

Suit e 3c, Sout h Shore Cent re 85 Sout h Pert h Esplanade Sout h Pert h, WA 6151

Em ail [email protected] Web www.nobleminres.com.au

Telephone +61 (0)8 9474 6771 Facsim ile +61 (0)8 9474 6772

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