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Wonawinta Silver Project 2009 Annual General Meeting Ian Lawrence Managing Director 14 October 2009 For personal use only

Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

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Page 1: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Wonawinta Silver Project

2009 Annual General MeetingIan LawrenceManaging Director14 October 2009

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Page 2: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

CCU is a base and precious metal explorer focussing on the south west margin of the Cobar 

Basin, on the way to becoming a globally significant silver producer

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Page 3: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

IntroductionWonawinta feasibility study 

‐ resource upgrade

‐ positive mining and metallurgy developments

Exploration upside‐ expanded tenement position

Increased project ownership

Silver price outlook‐ benefitting from stronger gold price

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Page 4: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Tenements

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Large tenement position south of Cobar, NSW

Established mining infrastructure in the region

Fault structures are significant geological features

Cobar

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Page 5: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Project geology plan

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4km strike along Wonawinta anticline

Stratigraphic control (Winduck Group)

Booth Limestone source rocks

Fault structures believed to be the source of mineralised fluids

Completed

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Page 6: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Current resource estimate

14% more ounces

Increased ore grade

60% conversion from inferred to indicated resource

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Grade Contained metal 

Classification Mt Ag g/t Pb % Ag Moz Pb ‘000t

Indicated 16 58 1.1 30 182

Inferred 14 46 0.6 20 84

Total 30 52 0.9 50 266

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Page 7: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Preliminary pit layouts

Site features

Cleared pastoral country

Series of 4 flat bottom open pits over 4km strike

Initial study

Estimated average strip ratio 7.2:1 waste:ore

1Mtpa ore throughput over 5 years

Current thinking

Preliminary pit optimization completed

Lower cost mining methods under review

More tonnes likely

Lower strip ratio – meaning lower economic grades

EOI – 12 contractors have responded

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Page 8: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Backhoe ExcavatorTopsoil/ Subsoil

LEGEND

O verburdenO re HorizonDolostoneBack Dumped Spoil

O ff-highway haul truck

Tracked dozer

Tractor Scraper

Mining methodsF

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Page 9: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Metallurgical test‐work

Free digging ore

Screen and slurry

Minimal comminution for aggregates and lumps

Cyanide leach to recover most silver

Low cyanide and lime consumption

Gravity concentrate for lead and residual silver

Latest cyanidation results confirm previous results

Control Ph to control slurry viscosity

Lower reagent consumption

Significant reduction in water requiements

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• Cyanide leach on composite samples of two major oxide ore types:

– no grinding

• Better average results than seen earlier

Ore type Recovery Limeconsumption

NaCNconsumption

Ag % kg/t kg/t

Pale Clay Hosted 93.4 3.34 1.6

Dolostone Saprock 91.7 2.05 1.16

Recent test results

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Page 11: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Conventional flow‐sheet

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Page 12: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Infrastructure/permitting

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Infrastructure

‐ Modest power requirements (no mill required)

‐ Potential water sources identified 

Permitting

‐ Established process, led by NSW DPI

‐ Conceptual development plan review late October

‐ Planning focus group

‐ Environmental reviews

‐ Lodge development application 

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Page 13: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Project economics

November ‘08 October ‘09

Ore throughput 1Mtpa √

Silver production 3.3Moz pa √

Initial mine life 5 years ↑

Mining costs (average of 4 budget estimates) strip ratio 7.2:1  

$1.94/t ore & waste

Silver recovery (CIP & gravity) 94% ↑

Lead recovery 55% √

Estimated processing plant capital cost $21M √

LOM cash cost of production (net of Pb credit)   $6.25/oz ↓

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Page 14: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Funding

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$21 capital cost – based on new 1Mtpa processing plant 

With infrastructure requirements  and working capital, total investment may be in the order of $25 to $30M

Funding options

• Equity, debt or hybrid security• Silver or lead financing

Firm up capital costs estimates

Fund raising mid‐2010 

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Page 15: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

CBH to dilute

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CBH has advised it will not contribute to additional expenditure or fund its share of feasibility study costs

CBH interest will be diluted/Cobar interest increased

Assuming feasibility study is completed on budget, CBH interest reverts to 2% royalty 

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Page 16: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Exploration upsideWonawinta anticline

Southern extension

Wonawinta north keel

Eastern flank

Smith’s Tank anticline western limb –12 RC holes planned

Concealed Winduck targets

Estimated extra 30M oz silver target mineralisation

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Page 17: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Silver demand

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Moz

Source: International Silver Institute

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Page 18: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Silver price

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US$/oz

Source: International Silver Institute

Current price

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Page 19: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

SummaryWonawinta feasibility study in progress

First phase of RC drilling completed

50Moz indicated and inferred silver resource ‐more ounces, higher grade, higher quality

Second phase RC drilling starts today

Met test‐work confirming earlier results

Complete feasibility study by mid 2010 

Production potential by 2011

Huge exploration upside

19“Wonawinta – potentially a globally significant silver mine”

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Page 20: Wonawinta Silver Project For personal use only 14 · For personal use only 14 October 2009. ... For personal use only ‐ Lodge development application. ... Concealed Winduck targets

Disclaimer

This presentation has been prepared by Cobar Consolidated Resources Limited (the company) as a summary of the Company, its minerals assets and its plans to explore its tenements and for general information purposes only.

This presentation is not and should not be considered as an offer or invitation to subscribe for or purchase any securities in the company, or as an inducement to make an offer or invitation with respect to those securities. No agreement to subscribe for securities in the company will be entered into on the basis of this presentation.

Due care and attention has been taken into the preparation of this presentation. However, the information contained in this presentation (other than as specifically stated) has not been independently verified for the company or its directors and officers, nor has it been audited. Accordingly, the company does not warrant or represent that the information contained in this presentation is accurate or complete. To the fullest extent permitted by law, no liability, however arising, will be accepted by the company or its directors, officers or advisers, for the fairness, accuracy or completeness of the information contained in this presentation.

This presentation contains certain forward‐looking statements which have not been based solely on historical facts but, rather, on the company’s current expectations about future events and on a number of assumptions which are subject to significant uncertainties and contingencies many of which are outside the control of the company and its directors, officers and advisers. 

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