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West Kirkland Reports Resource and Preliminary Economic Assessment on its TUG Property, Utah

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West Kirkland Reports Resource and Preliminary Economic Assessment on its TUG Property, Utah

 

 

 

 

 

West Kirkland Mining Inc. (TSX VENTURE:WKM) reports a new Mineral Resource and a Preliminary Economic Assessment on its TUG Project, Utah. The resource estimate and PEA were prepared in conformance with NI 43-101 by Roscoe Postle Associates USA Ltd. The study predicts a 26% after-tax IRR and $9 million NPV(8%) at $1,525 gold/ $28 silver, and an in-pit indicated resource of 114,000 ounces gold plus 5.4 million ounces silver with an inferred resource of 3,000 ounces gold plus 298,000 ounces silver. Initial capital cost is projected to be $24 million. Note that all funds are stated in US$.
 

R. Michael Jones, West Kirkland President and CEO said, “Our completion of the Resource and Preliminary Economic Assessment for the TUG gold project shows the potential for production when a $1,500 gold price over four to five years is achievable. At the current time we will continue conserving a $1.0 million working capital position and are now assessing opportunities for acquisition of additional gold and silver assets. We are targeting projects that are a logical addition to TUG and where we can use our expertise in exploration and into operations.”
 

Highlights of the PEA
 

RPA’s economic assessment has focused on the most economical part of the Mineral Resource, which is based on heap leach processing as outlined in Table 4. The processing method selected for the PEA was determined by comparing the milling and heap leaching cash flow analyses.

 



----------------------------------------------------------------------------

       Table 1 TUG PEA Preliminary Economic Assessment April 30, 2013
----------------------------------------------------------------------------
Gold Price                                       $1,525/oz
----------------------------------------------------------------------------
Silver Price                                     $28/oz
----------------------------------------------------------------------------
Total Rock                                       15.6 million tonnes
----------------------------------------------------------------------------
Waste Rock                                       11.4 million tonnes
----------------------------------------------------------------------------
Mineralized Material (non-diluted) Indicated     3.94 million tonnes
----------------------------------------------------------------------------
Mineralized Material (non-diluted) Inferred      0.26 million tonnes
----------------------------------------------------------------------------
Stripping Ratio                                  2.7:1 (waste to
                                                 mineralized)
----------------------------------------------------------------------------
Average Processing Rate                          3,000 tpd (heap leach)
----------------------------------------------------------------------------
Gold Recovery                                    58%
----------------------------------------------------------------------------
Silver Recovery                                  15%
----------------------------------------------------------------------------
Initial Capital (includes Contingency & Bonding) $24 million
----------------------------------------------------------------------------
Contingency (25%)                                $4.7 million
----------------------------------------------------------------------------
Environmental Bonding Estimate                   $1.7 million
----------------------------------------------------------------------------
Cash Operating Cost per ounce Gold Equivalent    $902 per ounce (AuEq)
----------------------------------------------------------------------------
Mine Life                                        4 years
----------------------------------------------------------------------------
IRR (pre-tax)                                    33%
----------------------------------------------------------------------------
NPV (pre-tax, 8% discount rate)                  $12 million
----------------------------------------------------------------------------
IRR (after-tax)                                  26%
----------------------------------------------------------------------------
NPV (after-tax, 8% discount rate)                $9 million
----------------------------------------------------------------------------
 

 

 

The economic analysis is based in part on Inferred Resources and is preliminary in nature. Inferred Resources are considered too geologically speculative to have mining and economic considerations applied to them or to be categorized as Mineral Reserves. There is no certainty that economic forecasts on which this Preliminary Economic Assessment is based will be realized. The complete PEA technical report on the TUG property will be filed on SEDAR within 45 days of this release.
 

RPA prepared a sensitivity analysis of IRR and NPV to gold and silver prices:

 



----------------------------------------------------------------------------
                 Table 2 TUG Economic Sensitivity Analysis
----------------------------------------------------------------------------
                                                     Base Case
Sensitivities to Au/Ag                  Au-$1,300    Au-$1,525    Au-$1,700
 Prices                                    Ag-$23       Ag-$28       Ag-$29
----------------------------------------------------------------------------
Pre-Tax IRR                %                    4%          33%          45%
----------------------------------------------------------------------------
Pre-tax NPV at 8% discount
 rate                      $ Million  $        (2) $        12  $        20
----------------------------------------------------------------------------
After-Tax IRR              %                    2%          26%          36%
----------------------------------------------------------------------------
After-Tax NPV at 8%
 discount rate             $ Million  $        (3) $         9  $        15
----------------------------------------------------------------------------
 

 

 

After acquiring TUG as part of a land package in Nevada, West Kirkland has developed the deposit from a historic resource of approximately 50,000 ounces of gold to an NI 43-101 compliant resource containing 131,000 ounces gold plus 6.3 million ounces silver in the indicated category and 111,000 ounces gold plus 4.3 million ounces silver in the inferred category. To meet its 60% earn-in requirement with Newmont, the Company has spent over $4 million at TUG and, subject to Newmont’s confirmation of the earn-in expenditures, is currently forming a joint venture with Newmont to advance the project.
 

TUG Project Opportunities
 

RPA has identified several opportunities which have the potential to improve the TUG Project. These include:

 



--  Drilling more twinned drill holes to investigate whether gold and silver
    grades are under-reported in some of the historical reverse circulation
    drill;
--  Re-assaying pulps from some historical drill holes that have a known low
    bias for silver;
--  RPA recommends that a comprehensive metallurgical testing program be
    completed for the Project which might lead to improved recoveries;
--  RPA recommends improving the accuracy of capital and operating cost
    estimates, optimizing the mining schedule, and investigating alternative
    crushing processes such as high pressure grinding rolls or vibration
    cone crushers, all of which have the potential to improve the project
    economics;
--  Investigate milling after the mine has operated with a heap leach, which
    would achieve higher gold and silver recoveries from mineralized
    material, potentially doubling the current economically mineable portion
    of the mineral resource, and allowing further recovery of gold and
    silver from leached material; and
--  Perform work on the adjacent KB deposit and other nearby exploration
    targets to allow their inclusion in the TUG project.
 

 

 

Mineral Resource Estimate
 

RPA’s Mineral Resource estimate is based on an open pit mining scenario. A potentially minable Mineral Resource is reported at a $17/tonne net smelter return (NSR) cut-off within a preliminary Whittle pit shell.

 



            TABLE 3 - MINERAL RESOURCE ESTIMATE - APRIL 30, 2013

Category                      Tonnes      Gold    Silver      Gold    Silver
                             t (000)     (g/t)     (g/t)      (oz)      (oz)
----------------------------------------------------------------------------
----------------------------------------------------------------------------
Indicated                      4,846      0.84      40.4   131,000 6,297,000
Inferred                       4,400      0.79      30.3   111,000 4,271,000
 

Notes:



1.  Mineral resources that are not mineral reserves do not have demonstrated
    economic viability
2.  CIM definitions are followed for classification of Mineral Resources
3.  Mineral Resources are estimated using a gold price of $1,700 per ounce
    and a silver price of $29 per ounce
4.  Gold and silver recovery factors of 90% and 60% respectively are used
5.  High grade assays are capped at 10 g/t Au and 500 g/t Ag
6.  Tonnage factor for mineralization was 2.55 t/m3
7.  Resources are constrained by a Whittle shell and reported at a $17/t NSR
    cut-off
8.  Totals may not represent the sum of the parts due to rounding
9.  The Mineral Resource Estimate was prepared by Luke Evans, M.Sc, P.Eng,
    RPA, April 30, 2013


          TABLE 4 - ECONOMICALLY ASSESSED RESOURCE - APRIL 30, 2013

Category            Tonnes      Gold        Ag   AuEq(i)      Gold        Ag
                   t (000)     (g/t)     (g/t)     (g/t)      (oz)      (oz)
----------------------------------------------------------------------------
----------------------------------------------------------------------------
Indicated            3,944      0.90      42.8      1.69   114,000 5,427,000
Inferred               255      0.42     36.32      1.09     3,000   298,000
 

Notes:



1.  CIM definitions are followed for classification of Mineral Resources
    within the pit used for the economic analysis
2.  Mineral Resources are estimated using a gold price of $1,700 per ounce
    and a silver price of $29 per ounce
3.  Heap Leaching gold and silver recovery factors of 58% and 15%,
    respectively are used
4.  Tonnage factor for mineralization was 2.55 t/m3
5.  No dilution applied to mineral resources, 97% mining recovery used
6.  Resources are constrained by a Whittle shell and reported at a $8.05/t
    NSR cut-off for heap leaching
7.  Totals may not represent the sum of the parts due to rounding
8.  The Mineral Resource Estimate used in the economic analysis was prepared
    by Luke Evans, M.Sc, P.Eng, RPA, April 30, 2013
9.  AuEq was calculated using the following formula: AuEq = Au grade + Ag
    Grade (i) 0.0183
 

 

 

Adjacent Properties
 

West Kirkland holds two large scale option positions in the Long Canyon Trend of Nevada and Utah from Newmont and Rubicon Minerals. Included in the Newmont Option agreement is the adjacent KB Property which features a historic mineral resource containing 40,000 ounces of gold in 1.73 million tonnes grading 0.72 g/t Au with a 0.34 g/t Au cut-off. The reader is cautioned that a qualified person has not done sufficient work to classify the historical estimate as current mineral resources and the issuer is not treating the historical estimate as current mineral resources. Additional work is required to make this estimate current. The Company intends to assess the KB deposit to determine its impact on the economic potential of the TUG project. The Company has also recently identified exploration targets in its Long Canyon Trend properties that may provide additional sources of feed for any mine developed in the northern portion of the Long Canyon Trend. For further details on properties held by West Kirkland please visit the Company’s website.
 

Background to the TUG Property
 

The TUG property comprises an outcropping gold and silver deposit in the Long Canyon Trend, north-west Utah. The deposit has structural features similar to those at Newmont’s nearby 2.6 million ounce Long Canyon property. TUG was discovered and extensively drilled in the 1980s and 1990s by various owners including Noranda and Western States Minerals Corporation. West Kirkland optioned TUG in 2010 from Fronteer as part of a large land package in the Long Canyon Trend.
 

Authors and Qualified Persons Statement
 

The PEA and Mineral Resource Estimate were prepared in conformance with NI 43-101 by Roscoe Postle Associates USA Ltd (RPA). The report was prepared by Stuart Collins, P.E., Kathy Altman, P.E., Ph.D., and Luke Evans, P.Eng, each a “Qualified Person” under NI 43-101 and who have supervised the preparation of the information that forms the basis of the written disclosure in this news release. Input for the PEA was provided by Newfields (civil and heap leach), Gault Group (environmental & permitting), and Hansen Allen & Luce (hydrogeology).
 

About West Kirkland Mining
 

West Kirkland Mining was formed in 2010 to focus on gold exploration along major trends in North America. The Company has consolidated significant mineral rights positions within the major gold trends of Nevada/Utah. The founders and Board of West Kirkland Mining have forty years` successful experience in gold discovery, mine development and mine operations in Nevada and other gold producing jurisdictions in North America.

Posted August 1, 2013

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