Kalongwe Copper-Cobalt Project (DRC)

“…Kalongwe is a significant high-grade oxide Cu-Co near surface resource which has potential to be developed into a near term – low CAPEX low OPEX mining operation…”

Project Location

  • Located in the Katanga Province, DRC.
  • ~15km from Kamoa, considered to be Africa’s largest recent high-grade copper discovery which boasts an Indicated Mineral Resource of 739 million tonnes grading 2.67% Cu
  • ~45km from the historic copper mining and processing centre at Kolwezi.

Kalongwe location

Project Ownership

  • Ownership of PR 12198 (exploitation licence) transferred to Kalongwe Mining SA, a DRC registered company
  • Interest in Kalongwe Mining SA jointly held by Nzuri Copper Limited (85%), La Generale Industrielle et Commerciale au Congo SPRL (10%) and DRC Government (5%).

Phase I Diamond Drilling Programme

  • Completed June 2014.
  • 12-holes; 1,785m; drill density: 100m x 100m.
  • Results validated 2006/2007 Ivanhoe drill results, and confirmed Kalongwe deposit as a very high grade Cu-Co resource with oxide mineralisation.
  • Significant results included:
    • 68.30m @ 4.92%  Cu and 0.57% Co               76.70m  @ 4.06% Cu and 0.52% Co
    • 16.90m  @ 8.05% Cu and 1.33% Co                 90.23m @ 3.38% Cu and 0.93%  Co
    • 77.60m  @ 4.14%  Cu and 0.57% Co                70.00m @ 2.22% Cu and 0.84% Co

Phase I

Phase II Diamond Drilling Programme

  • Completed November 2014.
  • 34-holes; 4,287m; drill density: 50m x 50m, 25m x 25m locally.
  • Designed to upgrade and reclassify the initial Mineral Resource estimate.
  • Significant results included:
    • 101.3m  @ 4.25%  Cu & 0.42% Co from 10.1m        57.30m @ 4.58% Cu & 0.62% Co from 3.80m
    • 96.70m @ 3.76% Cu & 0.53% Co from 15.0m        92.10m @ 5.24% Cu & 0.55% Co from 21.0m
    • 87.50m @ 3.35%  Cu & 0.37% Co from 48.3m       80.50m @ 4.27% Cu & 0.76% Co from 25.7m
    • 75.00m @ 6.30% Cu & 0.73% Co from 12.0m        69.00m @ 5.29% Cu & 0.77% Co from 5.50m
    • 68.20m @ 3.98% Cu & 0.53% Co from 6.00m       62.90m @ 3.26% Cu & 0.43% Co from 19.5m

Phase II

Maiden Resources Estimate

  • Completed July 2014.
  • Based upon 65 drill holes (aggregate of 12,239m) – 2006/2007 Ivanhoe drill data (53 holes) and Phase I drill campaign (12 holes).
  • JORC compliant Maiden Inferred Mineral Resource estimate of 276,000t of Cu and 42,500t of Co.

Revised and Re-classified Resources Estimate

  • Completed February 2015.
  • Data used from ~98 drill holes (~16,000m; 2006/2007 Ivanhoe data and 2014/2015 Kalongwe drill campaigns).
  • Revised and re-classified JORC Mineral Resource:
    • 17Mt  @ 2.70% Cu (0.5% Cu cut off), 302,000t Cu including 29,700t Co, and
    • 29Mt @ 0.57% Co (0.2% Co cut off), 13,000t Co.
    • ~75% conversion of previously Inferred resource to Measured and Indicated JORC categories.
  • Predominantly malachite, deep base of oxidation.
  • Broad zones of high-grade Cu-Co extend down dip from surface exposure.
  • High-grade Co zones inside the Cu resource.

revised jorc table

Deposit Geology

  • Host is the Lower Roan Stratigraphy.
  • Multiple thick, high-grade intersections.
  • Good continuity between holes.
  • Robust geology.
  • High-grade mineralisation through structural overprint.
  • Mineralisation open at depth and down plunge.
  • Depth of oxidation to ~150m.

 

Metallurgy

  • Oxide ore suited for upgrading by Heavy Media Separation and spirals to produce +20% Cu concentrate.

Scoping Study

  • Completed April 2015. Refer to ASX announcements on 21 April 2015 and 3 June 2016 for further details.
  • Scoping Study Confirms Project Viability.
  • Robust – based on Measured & Indicated JORC Mineral Resource Estimate
  • Low CAPEX, OPEX and short payback period are the result of the high grade nature of the deposit.
  • Simple mining and beneficiation process.
  • Significant opportunities to further enhance the Project economics.
  • Potential Stage 2 SX-EW would provide opportunities to extend mine life.
  • Planned work will include a number of technical studies to optimise the pit design and mining schedule and refine the processing flow sheet.
  • Definitive Feasibility Study – Board will be seeking consent from its JV partners to complete.
  • Gearing up to fast track mine development.