Tampia Gold Project

Location of Explaurum Limited Projects
Location of Explaurum Limited Projects

Tampia Gold Project

Explaurum’s key asset is the 90% interest in the Tampia Gold Project, located approximately 240km east of Perth in the wheat belt of Western Australia. A 2012 JORC Inferred resource of 11.3 million tonnes at 1.91 g/t Au for 695,000 oz at a 0.5 g/t Au cut off was released by Explaurum in 2017 following significant exploration drilling.

    1. about 90% of the resource (at 0.7g/t) in the upper 100m and 73% in the upper 80m
    2. details of the estimation are set out in Appendix 1
    3. oxide Resources are not significant at about 15,000 ounces at a 0.7g/t cut off.

An ongoing feasibility study is expected to be completed in Q1 2018.

Scoping Study

Explaurum released the successful results of the Tampia Scoping Study in November 2017 which highlighted the following results: 

  • Demonstrates Tampia is one of the highest margin undeveloped gold projects in Australia
  • Based on single open pit mining operation with ore being processed at a rate of 1.5Mtpa through an onsite plant
  • Low cost, high margin, low technical risk project
  • 94koz per annum production over first five years with Life of Mine (LOM) gold production target of over 500koz with a mine life of six years
  • LOM gold production target based on 8.1 million tonnes grading 2.1 g/t Au in-pit resource (94% Indicated Resources and 6% Inferred Resources)
  • Initial capital cost of A$95M with estimated payback period of 1.5 years using A$1,650 oz gold price
  • Estimated LOM C1 operating costs of A799oz1
  • Estimated LOM all in sustaining cost (AISC) of A$888oz2 (lowest industry quartile)
  • Scoping Study presents a base case scenario and does not include organic growth from the Tampia Gold deposit or Explaurum’s regional prospects
  • The Tampia Gold Resource remains open and future resource upgrades across the broader project are expected to provide significant opportunity to expand mine life at potentially higher annual production rates

1 C1 Costs include all mining and processing costs, site administration and refining costs
2 AISC includes C1 costs and sustaining capital, royalties, site rehabilitation and head office corporate costs

Regional Exploration 

The Company has identified new zones of gold mineralisation that confirm additional zones of gold mineralisation are present outside the Tampia Resource Area. 

Ongoing intensive regional exploration at Tampia is expected to continue until mid 2018.  This exploration is aimed at adding new resources, both from the immediate Tampia Gold resource area and regionally, where a total of 25 Gravity Anomalies have been discovered to date.


Scout drilling will commence in February 2018 at high priority targets located to the south of Tampia and at Gravity Anomaly 8, located 7km north of Tampia, where a significant new anomalous gold zone has been discovered with gold in soil calues of up to 0.81 g/t Au over a 2.5km2 area 

The main aims of the ongoing regional exploration including auger sampling and RC scout drilling are: 

  • To expand the resource base at Tampia and add potential mine life to the project
  • To test and infill extensions to the current resource down plunge to the south east
  • Map the geology and test for additional stacked shoots of gold mineralisation directly underneath the current resource area
  • To map the geology and geochemistry of all the gravity targets in the regional area
  • To drill test the regional gravity targets that have gold soil anomalies for bed rock gold mineralisation
  • Prioritise targets that warrant follow up resource drilling programs 

Tampia History

BHP Minerals (‘BHP’) discovered gold mineralisation at Tampia in 1987 and BHP and subsequent owners in the 1990s established the following features of the Tampia mineralisation: 

  • Gold mineralisation is high grade and near surface
  • The resource was well drilled in part to mostly shallow depth, but open in all directions and at depth
  • The resource area has significant gaps in drilling, demonstrating that successful infill drilling could significantly increase the resource
  • There is significant potential for further discoveries within 10km radius with a number of strong geochemical and auger/RAB anomalies
  • Tampia is located on private land close to sealed roads, power, water, accommodation, services and labour
  • Tampia is located 135km by road from Westonia and about 185km by road from Southern Cross and Marvel Loch 

Only minor exploration was carried out at Tampia from the mid-1990s until Explaurum acquired an 80% (now 90%) interest in April 2012. At that time, although the Project is located within an under-explored greenstone belt, technical aspects of the deposit such as geology, structure, controls on mineralisation and metallurgy were poorly understood, but what was known regarding the mineralisation (open-pittable resource with near surface, high grade mineralisation open in all directions) was highly attractive to Explaurum.