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Last updated on April 17, 2014 at 1:21 EDT

Patriot Gold Announces Results Of Preliminary Economic Assessment For Moss Mine Project

April 10, 2013

Results Support Strong Potential Economics Including PHASE II Pre-Tax Internal Rate of Return of 117.9%

LAS VEGAS, April 10, 2013 /PRNewswire/ — Patriot Gold Corp. (OTC: PGOL) or (“Patriot Gold” or the “Company”), a developing gold and silver production and exploration company, today announced the results of a Preliminary Economic Assessment (“PEA”) for the Moss Mine Project, located in the historic and active Oatman mining district near Bullhead City, Arizona.

Based on the recently announced updated resource estimate and an independent technical report co-authored by CDM Smith, Inc. (“CDM”) and Metal Mining Consultants Inc. (“MMC”) dated March 13, 2013 (the “Technical Report”), the PEA provides an evaluation of the economics of open pit mining and heap leach processing in Phase I and Phase II production for the Moss Mine Project.

Phase II Preliminary Economic Assessment Highlights*:

  • Mine life of five years, 5,000 tpd, 42,000 AuEq oz/yr
  • Pre-tax IRR of 117.9%
  • Pre-tax payback of 15 months
  • Pre-tax NPV @5% $110 million
  • Capital expenditures $26.6 million
  • Capital/average annual AuEq oz production $633/oz
  • Cash Costs/AuEq oz $490/oz
  • Metallurgical recoveries of 75-85% for gold and 55-77% for silver

*All figures are in USD unless otherwise stated, are based on a gold price of $1,500/oz and predictions that 100% of the Phase I and II mineral resource will be minable.

“We are pleased with the outcome of the Preliminary Economic Assessment which not only supports the strong economic potential of the Moss Mine Project, but also provides sound guidance to the next phases of operations,” said Bob Coale, CEO of Patriot Gold. “We believe that there continues to be upside in maximizing results from the in-field operations during the Pilot Plant operations phase (Phase I), from possible pit expansions as a result of the mine exploration programs and of course, possible Mine Life Extension or Expansion (Phase III). With the PEA results guiding our way, we remain very optimistic on the Moss Mine Project outlook and look forward to keeping our shareholders informed on our progress throughout the next critical phases of operations.”

The Three-Phase Mine Development Plan, as outlined in previous news releases, is designed to move the Moss Mine Project forward in a defined and thoughtful manner – from conceptual design and laboratory test work to on-site pilot plant testing (Pilot Plant – Phase I) and then onto operations (Phase II). Phase II is independent from Pilot Plant – Phase I, and will only proceed if Phase I is successful. Phase III is conceptual only, will depend on the success of Phase II, and so is not included in the PEA. Phase III would involve mine life extension and/or expansion of production volumes.

A summary of the key parameters and results of the PEA follow.

Operations Scope

Pilot Plant – Phase I

  • Designed to in-field demonstrate the economic and technical viability of heap leach processing
  • Includes pilot-scale open pit mining and heap leach processing of an aggregate of approximately 90,000 tonnes of mineralized rock
  • All activities would be confined to patented property
  • Low strip ratio 0.79:1
  • Mined zone approximately 500 feet in length
  • Both higher grade and lower grade material will be tested in Pilot Plant – Phase I
  • Production rate of 1,000 tonnes of mineralized rock / day
  • Mining and processing activities to be performed by contractors
  • Provision of 67,463 tonne stockpile of mineralized rock for Phase II production

Operations – Phase II

  • Will proceed upon determination of successful results from Pilot Plant – Phase I
  • Would include mining and processing of approximately 6.13 million tonnes of mineralized rock
  • Open pit mining methods and heap leach processing
  • Low strip ratio 1.6:1
  • All activities would be confined to patented property
  • Pit depth ranges from 30 feet to 575 feet
  • Production and processing activities are expected to be 5,000 tonnes of mineralized rock / day
  • Mining activities to be performed by contractors and processing activities to be performed by Northern Vertex

The complete PEA report will be available within approximately 30 days at www.patriotgoldcorp.com.

Resources

New Technical Report on Resources:

An updated independent technical resource estimate was prepared by Dr. Stewart D. Redwood, FIMM, and Scott Wilson of MMC and was outlined in a news release dated March 26, 2013. The summarized resource estimate in the table below includes 12.6 million tonnes (AuEq of 1.03 g/t) of measured resources and 9.98 million tonnes (AuEq of 0.73 g/t) of indicated resources (aggregate average: 22,589,000 tonnes at 0.90 AuEq g/t) for total measured and indicated AuEq oz of 653,600 (537,000 Au oz and 5,830,000 Ag oz). It is important to note that mineral resources described herein are not mineral reserves and, as such, may not have demonstrated economic viability.

                    Metal Mining Consultants Inc. ("MMC") Summarized Resource Estimate*

                               For Moss Mine Project at a 0.3 g/t Au Cut-off

               Resource               Au Eq*(oz)    Au (oz)     Ag (oz)       Tonnes   Grade

               Category
               --------

                 AuEq                    Au           Ag
                 ----                    ---         ---

                 (g/t)                  (g/t)       (g/t)
                 -----                  -----       -----

    Measured                             418,760    345,000   3,688,000   12,611,000     1.03    0.85    9.10
    --------                             -------    -------   ---------   ----------     ----    ----    ----

    Indicated                            234,840    192,000   2,142,000    9,978,000     0.73    0.60    6.68
    ---------                            -------    -------   ---------    ---------     ----    ----    ----

    M+I                                  653,600    537,000   5,830,000   22,589,000     0.90    0.74    8.03
    ---                                  -------    -------   ---------   ----------     ----    ----    ----

    Inferred                              82,020     66,000     801,000    3,957,000     0.64    0.57    6.65
    --------                              ------     ------     -------    ---------     ----    ----    ----

    *Gold equivalency is based on a silver:gold ratio of 50:1 and assumes 100% recovery of all metals.

    *Mineral Resources are not Mineral Reserves and do not have demonstrated economic viability. There is no certainty that all or any part of the Mineral Resources estimated will be converted into
     Mineral Reserves estimates.

    *Mineral resource tonnage and contained metal have been rounded to reflect the accuracy of the estimate and numbers may not add due to rounding.

    *Resources were based on 36,805 meters of drilling in 658 exploration drill holes and 530 meters of channel sampling. There were a total of 7,677-five meter composite samples used in the
     estimation of gold and silver. MMC used Inverse Power Distance (ID3) as the preferred estimation technique for the Moss Mine Project.

    *MMC capped gold assays, prior to compositing 5 meter samples, at 17 grams per tonne and silver at 140 grams per tonne in order to limit the effect of high grade outlier grades in the estimation
     of mineral resources.

    *MMC applied Industry Standards in the selection of the drill hole and assay information gathered from historic and current exploration programs in its determination of Measured Mineral
     Resources, Indicated Resources and Inferred Resources.

Resource Estimates Used for Economic Assessments in the PEA:
Resources used in the economic assessment for the Moss Mine Gold-Silver Project Phase I Pilot Plant and Phase II Operations are as follows:

    Moss Mine Project Measured and Indicated Resources Estimate* for Phase I Pilot Plant Operations

    Class for Phase I                 Tonnes                           Au Oz Equiv                 Grade   Au Oz Grade    Ag Oz

                                                                                                    Au g/t        Ag g/t
    ---                                                                        ---                           ---            ---

    Pilot Plant
     Operations -
     Phase I Measured
     .3 -1.0 g/t                                        49,301               1,245                 0.664   1,052  6.08    9,636
    -----------------                                   ------               -----                 -----   -----  ----    -----

    Pilot Plant
     Operations -
     Phase I
     Indicated .3 -
     1.0 g/t                                                 0                   -                 0.000       0     -        0
    ---------------                                        ---                 ---                 -----     ---   ---      ---

    Pilot Plant
     Operations -
     Phase I Measured
     and Indicated .3
     -1.0 g/t                                           49,301               1,245                 0.664   1,052  6.08    9,636
    =================                                   ======               =====                 =====   =====  ====    =====

    Pilot Plant
     Operations -
     Phase I Measured
     >1.0 g/t                                          108,013               9,091                 2.226   7,732 19.57   67,969
    -----------------                                  -------               -----                 -----   ----- -----   ------

    Pilot Plant
     Operations -
     Phase I
     Indicated >1.0
     g/t                                                   149                   6                 1.046       5  5.21       25
    ---------------                                        ---                 ---                 -----     ---  ----      ---

    Pilot Plant
     Operations -
     Phase I Measured
     and Indicated >
     1.0 g/t                                           108,162               9,097                 2.225   7,737 19.55   67,995
    =================                                  =======               =====                 =====   ===== =====   ======

    *Equivalency based on 1 oz Au = 50 oz Ag

    Moss Mine Project Measured and Indicated Resources Estimate* for Phase II Operations

    Class for Phase
     II                                                   Tonnes             Au Oz Equiv Grade     Au Oz Grade       Ag Oz

                                                                                          Au g/t          Ag g/t
    ===                                                                              ===             ===               ===

    Operations -
     Phase II
     Measured .3 g/t
     cutoff                                            5,063,232                 218,467 1.114   181,349 11.40   1,855,914
    ----------------                                   ---------                 ------- -----   ------- -----   ---------

    Operations -
     Phase II
     Indicated .3 g/
     t cutoff                                          1,074,207                  36,675 0.863    29,821  9.92     342,670
    ----------------                                   ---------                  ------ -----    ------  ----     -------

    Operations -
     Phase II
     Measured and
     Indicated .3 g/
     t cutoff                                          6,137,439                 255,142 1.070   211,170 11.14   2,198,584
    ----------------                                   ---------                 ------- -----   ------- -----   ---------

    *Equivalency based on 1 oz Au = 50 oz Ag

    Moss Mine Project Inferred Resource and Waste Material Estimates* for Phase I Pilot Plant and Phase II Operations

    Class for Phase
     I                                                   Tonnes         Au Oz Equiv                 Grade           Au Oz  Grade   Ag Oz

                                                                                                     Au g/t                 Ag g/t
    ---                                                                         ---                                   ---            ---

    Pilot Plant
     Operations -
     Phase I
     Inferred
     Resource .3 -
     1.0 g/t                                                  0                   0                     0               0      0       0
    --------------                                          ---                 ---                   ---             ---    ---     ---

    Pilot Plant
     Operations -
     Phase I
     Inferred
     Resource >1.0
     g/t                                                      0                   0                     0               0      0       0
    --------------                                          ---                 ---                   ---             ---    ---     ---

    Class for Phase
     II                                                  Tonnes         Au Oz Equiv                 Grade           Au Oz  Grade   Ag Oz

                                                                                                   Au g/t                 Ag g/t
    ---                                                                         ---                                   ---            ---

    Operations -
     Phase II
     Inferred
     Resource .3 g/
     t cutoff                                            13,134                 491                 0.933             394  11.53   4,868
    ---------------                                      ------                 ---                 -----             ---  -----   -----

    Waste - Phase I and Phase II
    ----------------------------

    Pilot Plant
     Operations -
     Phase I Waste                                        3,712
    --------------                                        -----

    Operations -
     Phase II Waste                                   9,843,357
    ---------------                                   ---------

    *Equivalency based on 1 oz Au = 50 oz Ag

Resource Estimates for Phase III – Mine Life Expansion / Extension:

The anticipated operating period for Phase I is 15 months and for Phase II is five years, including development and construction. As previously stated, Phase II will only proceed upon the successful completion of Phase I.

Pilot Plant – Phase I and operations – Phase II measured and indicated resources encompass 265,000 of the total 654,000 ounces gold equivalent of global resources estimated by MMC. Upon the completion of Phase II, 389,000 oz AuEq will remain. Extending mining and processing operations onto unpatented land by mining along strike and to depth has the potential to significantly extend the life of the mine. This will be the subject of further investigation concurrent with Phase II operations. This investigation will incorporate permitting, technical, economic, and financial elements into one or more pre-feasibility and/or feasibility studies.

It should be noted that the Phase I and Phase II resources described are physically constrained to that which can be reasonably extracted by limiting mining and related facilities to patented – or private – land. The conceptual Phase III mine plan would be pursued without the physical constraints of limiting operations to patented land and will require normal course approvals from various US governmental departments and mining authorities.

Based on development of the initial resource solids containing the Phase I and Phase II resources, the mining extraction recovery rate of the in-situ resource is anticipated to be 100 percent.

Metallurgy:

Overall metallurgical data shows that ore from the Moss Mine Gold-Silver Project is readily amenable to agglomeration/heap leach cyanidation processing. Column test recoveries obtained from the bulk samples, finely crushed using rolls crushers and agglomerated using cement as a binder, ranged from 75% to 84.6% for gold and from 61.3% to 76.6% for silver. Recovery percentages are summarized in the table below:

                    McClelland Leach Test Recovery Results

    Test       Feed Size          Au Recovery (%)             Ag Recovery (%)
    ----       ---------          --------------               --------------

    1X
     Rolls
     HG
     Composite P85-1/4"                                    75                   69
    ---------- --------                                   ---                  ---

    1X
     Rolls
     HG
     Column
     Test      P85-1/4"                                  75.3                 61.3
    -------    --------                                  ----                 ----

    2X
     Rolls
     HG
     Composite P95-1/4"                                    84                   76
    ---------- --------                                   ---                  ---

    2X
     Rolls
     HG
     Column
     Test      P95-1/4"                                  84.6                 76.6
    -------    --------                                  ----                 ----

Gold extraction was still in progress when column leach tests were terminated for purposes of completing the PEA and is expected to increase further with a longer leach cycle. Preliminary data from an ongoing column leach test indicate that the low grade mineralization will be amenable to agglomeration/heap leach cyanidation processing after roll crushing to a 95%-1/4″ feed size. Use of industrial scale high pressure grinding rolls (HPGR) has the potential to improve liberation and yield higher recoveries.

The favorable results from the labatory metallurgical testing provide the basis for proceeding with the proposed field testing Pilot Plant – Phase I. Metallurgical data from the Pilot Plant program will be collected and analyzed for use in the design of operations – Phase II. Both higher grade and lower grade mineralized rock is expected to be tested in the Pilot Plant. Although positive results have been obtained to date, additional metallurgical test work will be required. Consequently, recoveries used in the PEA have been conservatively scaled back to 75% for Au and to 55% for Ag.

Exploration:

The Preliminary Economic Assessment recommends a continued exploration program to further delineate the mineralization at the Moss Gold-Silver Project. The limits of mineralization are still open at depth and to the west. The recommended drilling program includes additional drilling of 2,200 meters and associated costs are outlined in the table below:

    Estimated Costs for Continued Exploration and Drilling
     Program

    Drilling                                                  $286,000
    --------                                                  --------

    Labor                                                      $65,000
    -----                                                      -------

    Assaying                                                  $150,000
    --------                                                  --------

    Core Studies                                               $10,000
    ------------                                               -------

    Administration                                             $51,000
    --------------                                             -------

    Total                                                     $562,000
    -----                                                     --------

    Production and Economic Criteria:
    ---------------------------------

    The key Production and Economic Criteria outlined in the PEA are as follows:

    Project Element                                                                                                                                                 Phase II (1)
    ---------------                                                                                                                                                 -----------

                                                                             Resource (6)
                                                                              -----------

    M&I Resource (tonnes)                                                                                                                                              6,137,439
    --------------------                                                                                                                                               ---------

    M&I Resource (gram Au/tonne)                                                                                                                                            1.07
    ----------------------------                                                                                                                                            ----

    M&I Resource (gram Ag/tonne)                                                                                                                                           11.14
    ----------------------------                                                                                                                                           -----

    M&I Silver : Gold ratio                                                                                                                                               10.4:1
    -----------------------                                                                                                                                               ------

    M&I Resource (AuEq oz)(2)                                                                                                                                            255,100
    ------------------------                                                                                                                                             -------

    Strip Ratio (waste/resource)(1) (5)                                                                                                                                    1.6:1
    -----------------------------------                                                                                                                                    -----

                                                                              Production
                                                                              ----------

    Mine Life (years) (7)                                                                                                                                                      5
    --------------------                                                                                                                                                     ---

    Tonnes / day (nominal)                                                                                                                                                 5,000
    ----------------------                                                                                                                                                 -----

    Total tonnes processed                                                                                                                                             6,218,036
    ----------------------                                                                                                                                             ---------

    Gold Recovery (%)                                                                                                                                                         75%
    ----------------                                                                                                                                                         ---

    Silver Recovery (%)                                                                                                                                                       55%
    ------------------                                                                                                                                                       ---

    Total oz. Recovered (Au)                                                                                                                                             145,465
    -----------------------                                                                                                                                              -------

    Total oz. Recovered (Ag)                                                                                                                                           1,107,516
    -----------------------                                                                                                                                            ---------

    Total oz. Recovered (AuEq)(2)                                                                                                                                        167,616
    ----------------------------                                                                                                                                         -------

                                                                                 Costs
                                                                                 -----

    Average Annual Production oz AuEq                                                                                                                                     42,000
    ---------------------------------                                                                                                                                     ------

     Mining                                                                                                                                                                $5.69
     ------                                                                                                                                                                -----

     Processing                                                                                                                                                            $3.67
     ----------                                                                                                                                                            -----

     Power                                                                                                                                                                 $2.92
     -----                                                                                                                                                                 -----

     G+A                                                                                                                                                                   $0.97
     ---                                                                                                                                                                   -----

    Cost / tonne                                                                                                                                                          $13.25
    ------------                                                                                                                                                          ------

                                                                             Financial (6)
                                                                             ------------

    Estimated Capital (US $)                                                                                                                                         $26,618,000
    -----------------------                                                                                                                                          -----------

    Capital / Total Recovered AuEq oz (US $/oz)(2)                                                                                                                          $158
    ----------------------------------------------                                                                                                                          ----

    Capital / Avg Annual Production AuEq oz                                                                                                                                 $633
    ---------------------------------------                                                                                                                                 ----

    Cash Cost / Recovered AuEq oz (US $/oz)(2)(4)                                                                                                                           $490
    ---------------------------------------------                                                                                                                           ----

    Net Present Value (NPV), 5%(3)                                                                                                                                  $109,762,415
    -----------------------------                                                                                                                                   ------------

    Discounted Cash Flow Rate of Return (DCF/ROR)(3)                                                                                                                       117.9%
    ------------------------------------------------                                                                                                                       -----

    Payback Period (years)(3)                                                                                                                                               1.25
    ------------------------                                                                                                                                                ----

    (1) Will only proceed if Phase I is successful

    (2) Equivalency based on 1 oz Au = 50 oz Ag

    (3) NPV, DCF/ROR, and payback are calculated based on $1500/oz. Au on a pre-tax and pre-royalty basis

    (4) Operations and Maintenance (O&M) costs (includes G+A)

    (5) Excludes stockpiled mineralized rock

    (6) The reader is cautioned that mineral resources described herein are not mineral reserves, and, as such, do not have demonstrated economic viability

    (7) Mine life for operations - Phase II is based on mineable resources on patented land only and has not been established using economic cut-off criteria.

Sensitivity Analysis:

The following table shows the variances to the Net Present Value (NPV) and Internal Rate of Return (IRR) from the base case of $1500 gold and $30/oz silver.

    Prices                               IRR                          NPV @5%
    ------                               ---                           ------

    Gold $1300/oz                                  88%            $82 million

    Silver $26/oz
    -------------

    Gold $1500/oz                               117.9%           $110 million

    Silver $30/oz
    -------------

    Gold $1700/oz                                 150%           $137 million

    Silver $34/oz
    -------------

Various other sensitivities have been carried out assessing the effects of:

  • An increase in capital cost by $10 million
  • An increase in operating costs by 20%
  • An increase in gold and silver recovery rates to match higher recovery rates in lab results
  • An increase in costs of diesel fuel for power production by $1 per gallon
  • A decrease in capital equipment costs by 25% by way of using used equipment instead of new
  • An increase in pit slope from 55 degrees to 65 degrees
  • A decrease in delay of NSR receipts from 25% to 10%

The results are attached as Appendix 1 and indicate the robust nature of the Moss Mine Project.

The Moss Mine Project & Patriot Gold’s Optionee/Operator

The Moss Mine Project is located approximately seven miles due east of Bullhead City, Arizona. Patriot Gold is the 100% owner in the historic Moss Gold-Silver property located in Mohave County, Arizona, which is subject to certain royalties and an earn-in option agreement for 70% interest. The earn-in optionee/operator has the right to earn a 70% interest in the project by completing an $8.5 million investment over five years and a bankable feasibility study. Subsequent to the optionee/operator earn-in, financing of the project will be on a proportional basis.

About Patriot Gold

Patriot Gold Corp. is a developing precious metals exploration and production company with the mission to discover and develop significant gold and silver assets. Headquartered in Las Vegas, Nevada, Patriot Gold currently holds a portfolio of two projects in Nevada (Bruner and Vernal) and its flagship Moss Mine Project in Arizona, each at varying stages of development from grassroots to advanced exploration and resource development. For more information, go to our website at www.patriotgoldcorp.com.

Disclaimer: This announcement may contain forward-looking statements which involve risks and uncertainties that include, among others, limited operating history, limited access to operating capital, factors detailed in the accuracy of geological and geophysical results including drilling and assay reports; the ability to close the acquisition of mineral exploration properties, and other factors which may cause the actual results, performance or achievements of the company to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. More information is included in the company’s filings with the Securities and Exchange Commission, and may be accessed through the SEC’s web site at http://www.sec.gov.

Investors:
Patriot Gold
702-456-9565

    Appendix 1

    Sensitivity Economics for operations - Phase II (Pre-Tax):

              Cost Component                         Variation             DCF/ROR              NPV, 5% $(000,000)
              --------------                         ---------             -------               -----------------

    Base Case: Gold = $1500/oz;                                                          117.9%                       $110
    Base Case: Silver = $30/oz)
    ---------------------------

    Table 3: Increase
     in gold and silver
     prices                             Gold = $1700/oz                                150.0%                       $137
                                        Silver = $34/oz
    ---                                 ---------------

    Table 4: Decrease
     in gold and silver
     prices                             Gold = $1300/oz                                 88.0%                        $82
                                        Silver = $26/oz
    ---                                 ---------------

    Table 5: Increase
     in capital cost                    Increase = $10,000,000                          82.2%                       $101
    -----------------                   ----------------------                          ----                        ----

    Table 6: Increase
     in Cash (O&M) cost                                     Increase = 20%             97.3%                        $96
    -------------------                                      -------------              ----                         ---

    Table 7: Increase
     in gold and silver
     recovery                           Gold recovery = 84.6%;                 157.5% 157.5%                       $143
                                                   Silver Recovery = 76.6%
    ---                                             ----------------------

    Table 8: Increase                    Diesel increase by $1/gallon to
     in diesel price                     $4.75/gallon                                  112.2%                       $106
                                         Electrical cost increase to
                                         $3.622/tonne
    ---                                 ----------------------------

    Table 9: Used
     equipment option:
     generators, heavy
     equipment,
     crushing plant,
     and conveyor
     systems rather
     than new equipment
     (base case)                                            Decrease = 25%            137.2%                       $112
                                        Decrease capital cost = $3,300,000
    ---                                 ----------------------------------

    Table 10: Increase
     in pit slope from
     average 55 degrees
     to average 65
     degrees                            Decrease in strip ratio to 1.25:1              121.1%                       $113
                                         Decrease in waste rock cost by
                                         $3.3 million
                                         Increase in recovered gold
                                         equivalent by about 4,600 oz. due
                                         to wider pit or $7 million
                                         Increase in slope rock bolting by
                                         $7.6 million
    ---                                  ---------------------------------

    Table 11: Decrease                   Decrease to 10% from 25% the
     in delay of NSR                     amount of revenue delayed until
     receipts                            following year                                142.4%                       $111
    ------------------                  --------------------------------               -----                        ----
    (1) Table number corresponds to
     tables contained in the
     complete PEA document

SOURCE Patriot Gold Corp.


Source: PR Newswire