DUGALD RIVER Location: Queensland, Australia Ore body type: Sediment-hosted zinc lead silver mineralisation Primary metal: Zinc Proposed mining method: Mechanised underground open stoping Expected mine life: 16 + years Resource (contained metal): 5.8 million tonnes zinc 1.0 million tonnes lead 67.8 million ounces silver
DUGALD RIVER
DUGALD RIVER One of the world s most attractive zinc deposits. Large, high grade resource: 47.9 million tonnes at 12.1% zinc, 2.1% lead and 44 grams per tonne silver. Dugald River deposit In close proximity to infrastructure and services. Pre-feasibility study completed December 2006. Feasibility study into the development of a 200,000 pa zinc metal mine initiated in early 2007. To Mount Isa Cloncurry airport Cloncurry township Legend Water Pipeline from Lake Julius to Ernest Henry Mine Possible power line extension to Dugald Existing power line from Mount Isa to Ernest Henry Mount Isa to Townsville Railway Bourke Development Road N 0 25 50 Kilometres Yurbi Rail loading facility
DUGALD RIVER Drilling is being carried out for resource definition and metallurgical testwork 0 100 200 metres Amenable to underground open stoping, high recovery rates achievable with conventional crushing, grinding and flotation. Preliminary marketing studies confirm demand. Legend Dugald Lode HW Shear Schist Calcsilicates Slate Massive Slate Calcareous Limestone
DUGALD RIVER Project team recruited Exploration camp and associated infrastructure inplace.
DUGALD RIVER Construction logistics study has confirmed feasibility of off-shore modular construction. Significant copper intersections and outcrops identified and potential is being assessed.
CENTURY DISTRICT Two types of lead-zinc deposit sought: 1. Century/Mt Isa-style 2. Vein- style -18.4 138.2 138.6 CONSTANCE RANGE ICON Resources JV EPM10544 LAWN HILL 139 139.4 2761.987 square kilometres of exploration tenements EPM 15283-18.8 CENTURY MINING LEASE EPM 14716 EPM 14717 WANGUNDA Smartrans JV -19.2 20 kms Australia GDA94
CENTURY MINE 20 PER CENT OF EMPLOYEES ARE FROM LOCAL INDIGENOUS GROUPS
CENTURY REGIONAL CENTURY AND MT ISA - STYLE CRC Project completed over three years with the following outcomes: Improved understanding of the architecture (seismic and 3D modelling); A picture of the geochemical halo of the deposit; Targets generated from a combination of the above. Understanding, through reverse fluid and stress field modelling, of how mineralising fluids circulated;
CENTURY REGIONAL CENTURY AND MT ISA - STYLE Stress and fluid flow modelling undertaken by the CSIRO
CENTURY DISTRICT VEIN-STYLE PROSPECTS - SILVER KING Located 2 kilometers south west of the Century pit. Periodically worked from 1887 to 1980 producing 2,653 tonnes of lead Recent drilling has focused on: - Finding extensions Extensions have been found to the north east along strike, up to 200m from the old workings. The deposit is still open in this direction and at depth. - Defining a resource Resource for the area around the old workings expected to be announced Q2 2008
CENTURY DISTRICT SILVER KING
CENTURY DISTRICT VEIN-STYLE PROSPECTS Silver Hills Stars and Stripes Other vein-style prospects are to be tested 2008 Century Orebody Outline Silver King Mended Hill Watsons Lode Silver Star
ROSEBERY DISTRICT PROJECT HORIZONS A $19m, three-year exploration program commenced in 2006 with the intention of increasing the Rosebery Mine resources. Further resource upgrades are expected from the next two years of this program. Impressive initial results expanded the resource by 65% to 11.7 million tonnes
ROSEBERY DISTRICT PROJECT HORIZONS
ROSEBERY DISTRICT REGIONAL EXPLORATION Focus on finding new, high grade lead-zinc and copper deposits in the prospective Mt Read Volcanics Alliance with Bass Metals to explore the Hellyer Mine Leases 258.04 square kilometres of tenements