DUGALD RIVER - OZ Minerals · Dugald Lode HW Shear Schist Calcsilicates Slate Massive Slate Calcareous Limestone metres 0 100 200 DUGALD RIVER • Drilling is being carried out for

DUGALD RIVER

•Location:Queensland,Australia

•Orebodytype:Sediment-hostedzinc

leadsilvermineralisation

•Primarymetal:Zinc

•Proposedminingmethod:Mechanised

undergroundopenstoping

•Expectedminelife:16+years

•Resource(containedmetal):

5.8milliontonneszinc

1.0milliontonneslead

67.8millionouncessilver

DUGALD RIVER

Cloncurry airport

Cloncurry township

Yurbi Railloading facility

To Mount Isa

Dugald River deposit

LegendWaterPipelinefromLakeJulius

toErnestHenryMine

Possiblepowerlineextension

toDugald

Existingpowerlinefrom

MountIsatoErnestHenry

MountIsatoTownsvilleRailway

BourkeDevelopmentRoad

25 50

•Oneoftheworld’smostattractivezincdeposits.

•Large,highgraderesource:47.9milliontonnes

at12.1%zinc,2.1%leadand44gramsper

tonnesilver.

•Incloseproximitytoinfrastructureandservices.

•Pre-feasibilitystudycompletedDecember2006.

•Feasibilitystudyintothedevelopmentofa

200,000pazincmetalmineinitiatedinearly2007.

DUGALD RIVER

Kilometres

0

N

LegendDugaldLode

HWShear

Schist

Calcsilicates

SlateMassive

SlateCalcareous

Limestone

metres

0 100 200

DUGALD RIVER

•Drillingisbeingcarriedoutforresource

definitionandmetallurgicaltestwork

•Amenabletoundergroundopenstoping,high

recoveryratesachievablewithconventional

crushing,grindingandflotation.

•Preliminarymarketingstudiesconfirmdemand.

•Projectteamrecruited

•Explorationcampandassociated

infrastructureinplace.

DUGALD RIVER

DUGALD RIVER

•Constructionlogisticsstudyhasconfirmed

feasibilityofoff-shoremodularconstruction.

•Significantcopperintersectionsandoutcrops

identifiedandpotentialisbeingassessed.

•Twotypesoflead-zincdepositsought:

1.Century/MtIsa-style

2.Vein-style

•2761.987squarekilometres

ofexplorationtenements

CENTURY DISTRICT

139

°

139.

4 °

-18.4 °

-18.8 °

-19.2 °

138.

2 °

138.

6 °

CENTURYMINING LEASE

20 kmsAustralia GDA94

WANGUNDASmartrans JV

CONSTANCE RANGEICON Resources JV

EPM10544 LAWN HILL

EPM 14716

EPM 15283

EPM 14717

CENTURY MINE 20PERCENTOFEMPLOYEESAREFROMLOCALINDIGENOUSGROUPS

CENTURY REGIONAL CENTURYANDMTISA-STYLE

•CRCProjectcompletedoverthree

yearswiththefollowingoutcomes:

•Improvedunderstandingofthearchitecture

(seismicand3Dmodelling);

•Understanding,throughreversefluidand

stressfieldmodelling,ofhowmineralising

fluidscirculated;

•Apictureofthegeochemicalhaloofthedeposit;

•Targetsgeneratedfromacombination

oftheabove.

•Stressandfluidflowmodellingundertaken

bytheCSIRO

CENTURY REGIONAL CENTURYANDMTISA-STYLE

•Located2kilometerssouthwest

oftheCenturypit.

•Periodicallyworkedfrom1887to1980

producing2,653tonnesoflead

•Recentdrillinghasfocusedon:

- Definingaresource

Resourcefortheareaaroundtheoldworkings

expectedtobeannouncedQ22008

- Findingextensions

Extensionshavebeenfoundtothenortheast

alongstrike,upto200mfromtheoldworkings.

Thedepositisstillopeninthisdirectionand

atdepth.

CENTURY DISTRICT VEIN-STYLEPROSPECTS-SILVERKING

CENTURY DISTRICT SILVERKING

Silver King

Watsons Lode

Silver Star

Century Orebody Outline

Stars and Stripes

Silver Hills

Mended Hill

•Othervein-styleprospects

aretobetested2008

CENTURY DISTRICT VEIN-STYLEPROSPECTS

•A$19m,three-yearexplorationprogram

commencedin2006withtheintentionof

increasingtheRoseberyMineresources.

•Impressiveinitialresultsexpandedthe

resourceby65%to11.7milliontonnes

•Furtherresourceupgradesareexpected

fromthenexttwoyearsofthisprogram.

ROSEBERY DISTRICT PROJECTHORIZONS

ROSEBERY DISTRICT PROJECTHORIZONS

ROSEBERY DISTRICT REGIONALEXPLORATION

•Focusonfindingnew,highgradelead-zinc

andcopperdepositsintheprospective

MtReadVolcanics

•AlliancewithBassMetalstoexplore

theHellyerMineLeases

•258.04squarekilometresoftenements