Continental Nickel Limited
TSX VENTURE : CNI

Continental Nickel Limited

April 15, 2011 09:22 ET

Continental Nickel Files the NI 43 101 Technical Report Which Supports the Recently Released Major Increase in Mineral Resources at its 75% Owned Nachingwea Nickel Sulphide Project in Tanzania

TORONTO, ONTARIO--(Marketwire - April 15, 2011) - Continental Nickel Limited (TSX VENTURE:CNI) ("CNI") is pleased to advise that the Technical Report supporting the recently released Mineral Resource Estimate (Press Release March 2, 2011) has been filed with SEDAR. This Mineral Resource Estimate, using a US$17/tonne Net Smelter Return ("NSR") cut-off, increases the Measured and Indicated Mineral Resources at Ntaka Hill to 4,981,000 tonnes grading 1.22% nickel and 0.24% copper and identifies Inferred Mineral Resources totalling 1,860,000 tonnes grading 0.68% nickel and 0.15% copper. The Inferred Mineral Resources calculated at a US$17/tonne NSR cut-off for the new Sleeping Giant discovery is 15,400,000 tonnes grading 0.77% nickel and 0.17% copper. Mineral Resources for various NSR cut-off values are provided in Table 1.

The NI 43-101 Mineral Resource estimate was completed by Roscoe Postle Associates Inc. of Toronto, Ontario. It incorporates data obtained from 230 diamond drill holes, totalling 35,361 metres, completed to explore for and delineate the seven separate sulphide deposits at nominal 25 to 100 metre drill section spacing.

Highlights:

  • The nickel metal contained in the Measured and Indicated Mineral Resources (US$17/tonne NSR cut-off) at Ntaka Hill is 60,900 tonnes.
  • The nickel metal contained in the Inferred Mineral Resources (US$17/tonne NSR cut-off) at Ntaka Hill was 13,000 tonnes and for the newly-discovered Sleeping Giant deposit is 119,000 tonnes.
  • The Sleeping Giant deposit remains open in all directions and additional "step out" drilling to expand the deposit is a priority in drilling season that will commence in June 2011.
  • Mineral characterization work (press release February 9, 2011) has confirmed high recoveries of nickel are possible from the sulphide mineralization at the Sleeping Giant deposit using conventional mineral processing.
  • A scoping study to assess potential production options is planned for 2011.

John Nitschke, Executive Chairman and Acting Chief Executive Officer of Continental, commented "the Technical Report provides a much better understanding of the nature and potential of the new Sleeping Giant deposit which has advanced from discovery to an Inferred Mineral Resource in just six months. The discovery remains open in all directions and we believe that it has the potential to develop into a major new nickel sulphide deposit. The primary objective of the 2011 step out drilling which will commence in June is to define the extent of the Sleeping Giant deposit. The high grades of the near surface Ntaka Hill Resources, indications of good metallurgical recovery and the project's location within 300 kms of a deep water port in the mining friendly jurisdiction of Tanzania will be important positive factors in the upcoming scoping study."

Mineral Resources were calculated from a geostatistical block model using GEMS software and reported at various NSR cut-off values per tonne, constrained by preliminary pit shells constructed by Whittle software. Only resources falling within the pit shells are reported as Mineral Resources. A minimum NSR cut-off of US$17/tonne was utilized to design the preliminary pit shells. Table 1 below shows Mineral Resources calculated at US$17/tonne, S$40/tonne and US$80/tonne NSR cut-offs.

Table I: Mineral Resources calculated at US$17, US$40 and US$80 /tonne NSR cut-offs for the Ntaka Hill and Sleeping Giant deposits (Note: Ntaka Hill is comprised of the G, H, J, L, M and NAD013 sulphide zones).
ZoneCategoryTonnes
(000's)
% Ni% Cu% CoNSR
(US$/t)
Contained Ni
(tonnes)
NSR Cut-off: US$17/tonne
Ntaka HillMeasured1,8711.740.300.0527532,500
Ntaka HillIndicated3,1100.910.200.0414828,400
TotalM + I4,9811.220.240.0419660,900
Ntaka HillInferred1,8600.680.150.0311013,000
Sleeping GiantInferred15,4000.770.170.02120119,000
TotalInferred17,2600.760.170.02120131,000
NSR Cut-off: US$40/tonne
Ntaka HillMeasured1,8621.740.310.0527632,500
Ntaka HillIndicated3,1020.920.200.0414928,400
TotalM + I4,9641.230.240.0419660,800
Ntaka HillInferred1,8600.680.150.0311013,000
Sleeping GiantInferred15,4000.780.170.02120120,000
TotalInferred17,2600.770.170.02120133,000
NSR Cut-off: US$80/tonne
Ntaka HillMeasured1,5751.990.340.0531531,400
Ntaka HillIndicated2,1081.160.240.0518824,500
TotalM + I3,6831.520.280.0524255,800
Ntaka HillInferred1,1100.900.180.0314010,000
Sleeping GiantInferred9,7900.990.220.0216096,000
TotalInferred10,9000.980.220.02160106,000

Notes on Mineral Resources:

  1. Mineral Resources were prepared in accordance with the Canadian Institute of Mining, Metallurgy and Petroleum ("CIM") definition standards regarding Mineral Resources and Mineral Reserves.
  2. Assays of drill core were completed at ALS Minerals of Vancouver, BC and included a comprehensive Quality Assurance / Quality Control ("QA/QC") program. All aspects of the core sampling, assay procedures and QA/QC program have been reviewed by RPA and were judged to be of industry standard and suitable for use in the estimation of Mineral Resources. RPA also completed a data verification exercise including independent core sampling and assaying with satisfactory results.
  3. Resource models were prepared based on drill section interpretation using a nominal 0.25% nickel grade cut-off. 3D solids were constructed by CNI geologists using GEMS software, then reviewed and revised as necessary by RPA.
  4. The estimation employed statistical analysis and variography of nickel, copper and cobalt values with construction of block models by zone using GEMS software. Block cell size was 2.5 x 5 x 5 metres.
  5. Grade interpolation to assign grade values to cells used Inverse Distance squared ("ID2") methods. Grades were also determined for Pt, Pd and Au but are not reported here as, on a combined basis, they fall below 1.0 gram/tonne.
  6. A total of 736 bulk density determinations on core using the immersion method were used for the estimate, with densities assigned where data were not available, based on an analysis of the correlation between specific gravity and sulphur.
  7. Mineral Resources are reported at NSR cut-off values of US$17/t, US$40/t and US$80/t and are based on open pit mining.
  8. NSR values derived from grade were determined using average long-term nickel, copper and cobalt prices of US$10.00/lb, US$3.50/lb, and US$20.00/lb, respectively; preliminary metal recoveries estimated at 87% for nickel, 81% for copper and 80% for cobalt, and allowances for transportation of concentrate and standard industry treatment charges for smelting and refining.
  9. No minimum mining width was used.
  10. Resource classification involved a review of geological and grade continuity and was based on drill hole spacing.
  11. Preliminary pits used to constrain the Mineral Resources reported were constructed using Whittle software based on slope walls of 45 degrees, 5 metre bench heights, and production costs of US$2.50/tonne mined, US$12.00/tonne processed and US$5.00/tonne general and administration costs.
  12. Totals may differ due to rounding.
  13. The Company is not aware of any environmental, permitting, legal, title, taxation, socio-political or marketing issues that are material to the statement of the Mineral Resources.
  14. The Mineral Resource Estimate is effective March 2011.

Qualified Persons / Quality Control

The Mineral Resource Estimate was prepared by Roscoe Postle Associates Inc. of Toronto, Ontario under the supervision of Chester Moore, P. Eng., Principal Geologist. Mr. Moore is an independent qualified person as defined by National Instrument 43-101.

The quality control, technical information and all aspects of the exploration program were supervised by Patricia Tirschmann, P. Geo., Vice President, Exploration for CNI. The information in this release was prepared under the direction of John Nitschke, Executive Chairman and Acting Chief Executive Officer for Continental Nickel Limited. Ms. Tirschmann is a qualified person as defined by National Instrument 43-101.

About Continental Nickel

Continental Nickel Limited is focused on the exploration, discovery and development of nickel sulphide deposits in geologically prospective, but under-explored regions globally. The Company's key asset is its 75% interest in the Nachingwea project in Tanzania, where NI 43-101 compliant Mineral Resources (Measured and Indicated) have defined 60,900 tonnes of contained nickel, and an additional 131,000 tonnes of contained nickel in Inferred Mineral Resources. The project is a 75:25 Joint Venture between the Company and IMX Resources Limited ("IMX") of Australia.

The Company also has an option joint venture on the St. Stephen project in New Brunswick, Canada where the 2010 diamond drill program discovered new Ni-Cu sulphide zones.

Continental Nickel Limited currently has 39,096,508 shares issued and outstanding (47,051,514 on a fully-diluted basis) and trades on the TSX Venture Exchange under the symbol CNI. The Company remains well-funded with C$10.0 million in the treasury as at December 31, 2010.

On behalf of Continental Nickel Limited

John Nitschke, Executive Chairman and Acting Chief Executive Officer

CAUTIONARY STATEMENT: This News Release includes certain "forward-looking statements". All statements other than statements of historical fact included in this release including, without limitation, statements regarding potential mineralization, potential or estimated metal recoveries, resources and reserves, exploration results, future plans and objectives of Continental Nickel Limited, are forward-looking statements that involve various risks and uncertainties. There can be no assurance that such statements will prove to be accurate and actual results and future events could differ materially from those anticipated in such statements. Important factors that could cause actual results to differ materially from Continental Nickel Limited's expectations are the risks detailed herein and from time to time in the filings made by Continental Nickel Limited with securities regulators.

Information in this announcement relating to the estimation of Mineral Resources is based on data verified and estimation methodologies supervised by Mr. Chester Moore who is a Principal Geologist with Roscoe Postle Associates Inc. of Toronto Ontario, Canada. Information relating to exploration results and data used in the Mineral Resource estimate was gathered and compiled under the supervision of Ms. Patricia Tirschmann who holds the position of Vice President, Exploration and is a full time employee of Continental Nickel Limited. Mr. Moore is a registered member of the Association of Professional Engineers of Ontario. Ms. Tirschmann is a registered member of the Association of Professional Geoscientists of Ontario. Each has sufficient relevant experience to qualify as a Competent Person under the 2004 Edition of the Australasian Code for the Reporting of Exploration Results, Mineral Resources and Ore Reserves. Mr. Moore and Ms. Tirschmann both consent to the inclusion of the data in the form and context in which it appears.

The TSX Venture Exchange does not accept responsibility for the adequacy or accuracy of this release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the information contained herein.

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