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MGP

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Share Name Share Symbol Market Type
TSXV:MGP TSX Venture Common Stock
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Mega Precious Metals Reports Transformational Metallurgical Results for Monument Bay

29/05/2014 4:08pm

Marketwired Canada


Mega Precious Metals Inc. (TSX VENTURE:MGP) ("Mega" or the "Company") is pleased
to announce a metallurgical processing strategy and excellent results from the
ongoing metallurgical work being completed by Thibault & Associates Inc. on
drill core samples from the conceptual open pit within the Twin Lakes Deposit at
Monument Bay. These results are based on bench scale metallurgical testing and
the assessment of alternative processing technologies for optimum grade and
recovery. A metallurgical process has been identified for the production of gold
and the co-production of tungsten from two discrete and identifiable zones
within the deposit, defined as the "Gold Zone" and the "Gold-Tungsten Zone",
both of which demonstrate relatively high recoveries using standard conventional
processes.


Highlights of the Initial Metallurgical Results Include:



--  A combined gold recovery of 91.4% from Gold Zone run-of-mine ore to gold
    cyanide leach solution. 
    --  95% gold recovery to a bulk sulfide - gold concentrate containing 40
        g/t gold. 
    --  96.2% recovery of gold in the bulk sulfide - gold concentrate using
        acidic pressure oxidation and subsequent cyanide leaching of the
        acid pressure leach residue (about 75% to 80% of the gold is
        recovered with cyanide leaching without acid pressure oxidation). 
    --  The sulphide concentrate has a mass pull of only 5.4% of the process
        ore which will allow much smaller hydrometallurgical circuit than if
        the whole ore needed to be processed. 
--  A combined tungsten recovery of 84.9% by bench scale bulk sulfide
    flotation followed by tungsten rougher stage flotation demonstrates the
    significant economic potential of the Gold - Tungsten Zone. 
    --  89.4% Tungsten recovery with a rougher grade of 5.56% WO3) was
        achieved in the tungsten rougher stages. This is a result of
        selective flotation reagents and the optimum liberation
        characteristics of tungsten (which occurs predominately as
        scheelite) using a nominal grinding specification to achieve an
        optimum tungsten recovery with limited slime loss. 
    --  The relatively high quality of tungsten at Monument Bay relative to
        other scheelite deposits is based on a low concentration of
        impurities (such as fluoride), improving the commercial viability of
        the tungsten concentrate production for end use tungsten carbide
        production. 
    --  Based on the relative grade of gold and tungsten in the Gold -
        Tungsten metallurgical sample, co-production of tungsten concentrate
        with gold has the potential to increase revenue relative to the base
        case production of gold from this zone.



The overall process flow to achieve the maximum recovery for both gold and
tungsten is outlined in this release. Mega's management is pleased that the
metallurgical process is straight-forward and highly conventional. It should be
noted that although the Company is continuing ongoing technical studies on zones
discovered to date, the deposit remains open in all directions and ongoing
exploration work will be directed to potentially expand the resources by
extending the current pit boundaries and also by potentially discovering new
zones along the deposit's strike length and possible parallel zones and to
depth.


The Gold Zone and the Gold-Tungsten Zone are distinct from each other (both
contain free gold, gold associated with non-sulfide and gold associated with
sulfide mineralization) and can be processed using commercially proven, widely
implemented process technologies for the production of gold dore (Figure 1). 


Within the Gold-Tungsten Zone, the tungsten occurs as scheelite that can be
separated from the gold and upgraded to co-produce a tungsten concentrate using
process flowsheet that is widely-implemented for the production of tungsten from
various scheelite-type deposits in Canada, Europe and China.


Glen Kuntz, P. Geo, President and CEO of Mega stated "We are very pleased to
have completed the preliminary bench scale metallurgical tests to define a
processing strategy for the development of the Gold Zone and Gold-Tungsten Zone
of the Twin Lakes Deposit. These results have exceeded our expectations and
compare favorably to similar projects. The pit material shows very good recovery
results for gold and tungsten and bodes well for our ongoing economic,
diagnostic and optimization work. With the positive metallurgical results for
tungsten the Company will be undertaking a resource update expected in the third
quarter of 2014 to include tungsten where assays have indicated a weighted
average increase of 30% to gold equivalent grades when compared to the gold only
assays with the potential to significantly transform the Monument Bay Project." 


The bench scale test program for the development of a fully integrated process
technology (using both metallurgical and hydrometallurgical processing methods)
was based on samples of drill core containing 2.27 g/t gold with a minor amount
of tungsten (containing 0.021% WO3) in the Gold Zone and 1.32 g/t gold with
0.42% WO3 in the Gold-Tungsten Zone. 


The Gold Zone consisted of a total of 1,486 samples for a total of 1,422 kg from
a total of 140 drill core samples, reflecting the spatial, lithological,
mineralogical and grade variations of the conceptual open pit portion of the
deposit. A single 500.10 kg composite was generated based on appropriate ratios
of each of the types of mineralization and closely following the geological
model of the pit. Overall the sample is representative of the two styles of
mineralization (porphyry vs shear), approximately 73% of the sample is weighted
from the eastern end of the conceptual open pit (Figure 2). 


Gold deportment studies are ongoing; however preliminary results from the
composite indicate the presence of free gold, gold associated with non-sulphides
and gold associated with pyrite/arsenopyrite. Recent 2014 drilling has indicated
an increased abundance of visible gold. This indicates there may further
benefits to be gained from gravity concentration testing. 


The Gold-Tungsten Zone consisted of a total of 115 samples for a total of 208 kg
from a total of 24 drill core samples, reflecting the spatial, lithological,
mineralogical and grade variations of the western end of the conceptual open
pit. Tungsten assays are pending from the 2014 drill and ongoing OCAP program
from throughout the deposit which have the potential to impact future
gold-tungsten resources. 


An update to the bench scale metallurgical test program by Thibault & Associates
Inc. of Fredericton, New Brunswick includes the following:




--  Bench scale tests have identified a flotation reagent scheme and grind
    specifications to achieve a 95% recovery of gold to the bulk sulfide
    flotation concentrate. A bulk sulfide flotation also provides a good
    separation of the gold and tungsten with 95% of the tungsten reporting
    to the bulk sulfide flotation tails. The concentrate containing
    approximately 40 g/t gold provides a significant reduction in the
    capital cost for a gold hydrometallurgical process facility - relative
    to direct hydrometallurgical processing of the ore. Based on the gold
    content in the bulk sulfide concentrate, the throughput tonnage of gold
    concentrate processed by the gold hydrometallurgical circuit is
    equivalent to about 5.4% of the run-of-mine ore for processing. 
--  Bench scale tests to assess an optimum reagent scheme for scheelite
    flotation as in progress for rougher flotation (primary stage of
    upgrading by flotation). The development of the reagent scheme for
    selective scheelite flotation is based on optimization of the tungsten
    grade by minimizing the flotation of silicates and carbonate minerals.
    Relative to the scheelite flotation feed, the primary stage rougher
    recovery of tungsten is 89.4% (to achieve a rougher grade of 5.56% WO3)
    based on the development of the reagent scheme to date. The performance
    of the rougher flotation is consistent with commercial scheelite
    flotation circuits and work on optimizing the flotation operating
    conditions for both rougher and cleaning stages of scheelite flotation
    is in progress. 
--  Preliminary tests on direct cyanide leaching of gold in the bulk sulfide
    flotation concentrate (without pre-oxidation leaching of the
    concentrate) indicated that about 75% - 80% of the gold is cyanide
    leachable. With pre-oxidation leaching of the gold concentrate using
    "acidic pressure oxidation" to destroy pyrite and arsenopyrite, the
    leachability of gold with a cyanide leach is 96.2%. To optimize on the
    utilization of oxygen and minimize the partial pressure of carbon
    dioxide in the pressure leach vessel, an acid pre-leach was used to
    remove the carbonates prior to acidic pressure oxidation. 



The definition of the process technology and the integration of ore
pre-concentration by bulk sulfide flotation, tungsten upgrading by scheelite
flotation and gold recovery from bulk sulfide - gold concentrates by
hydrometallurgical processing is defined by Figure 3.


To view Figures 1, 2 and 3 please click on the following link:
http://media3.marketwire.com/docs/MGP0529.pdf 


Current and Future Testing

Continuing metallurgical testing is focused on the process parameters for a
preliminary economic assessment, with the results of the test program expected
late Q3 2014. 


In addition to defining a processing strategy to upgrade both gold and tungsten
from each zone, the strategy employs tailings and wastewater treatment
technologies to comply with environmental guidelines.


The performance of the rougher flotation is consistent with commercial scheelite
flotation circuits and work on optimizing the flotation operating conditions for
both rougher and cleaning stages of scheelite flotation is in progress.


Qualified person: 

J. Dean Thibault, P.Eng., Senior Process Chemical Engineer and Principal of
Thibault & Associates Inc., located in Fredericton, New Brunswick, is acting as
a Qualified Person in compliance with National Instrument 43-101 with respect to
the metallurgical bench scale process development test program and process
flowsheet design information contained in this release and has reviewed the
contents for accuracy.


Glen Kuntz, P. Geo, President and CEO, is the Qualified Person for the
information contained in this press release and is a Qualified Person defined by
National Instrument 43-101. Glen was Sr. Resource Geologist at the Campbell Gold
Mine and Global Spatial Data Systems Coordinator for Placer Dome, Vice President
Enterprise Mining Solutions for Runge Ltd., and most recently, Chief Operating
Officer with Mega Precious Metals. 


Mega Precious Metals Inc. is a leading Canadian-based exploration company with a
high quality pipeline of projects located in the mining friendly jurisdictions
of Manitoba, Northwestern Ontario and Nunavut. The Company's significant
portfolio includes the flagship Monument Bay Gold Tungsten Project in NE
Manitoba as well as the N. Madsen Gold Project in the prolific gold mining
district of Red Lake, Ontario. Mega has established a record of delivering rapid
growth through their focused and low cost approach to exploration and resource
development. The Company's common shares trade on the TSX Venture Exchange under
the symbol MGP.


For further information and presentation material, please review the Mega
website at www.megapmi.com.


Forward-looking Statements

Certain statements in this press release relating to the Company's exploration
activities, project expenditures and business plans are "forward-looking
statements" within the meaning of securities legislation. The Company does not
intend, and does not assume any obligation, to update these forward-looking
statements. These forward-looking statements represent management's best
judgment based on current facts and assumptions that management considers
reasonable. The Company makes no representation that reasonable business people
in possession of the same information would reach the same conclusions.
Forward-looking statements involve known and unknown risks, uncertainties 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 the forward-looking statements. In
particular, fluctuations in the price of gold or in currency markets could
prevent the Company from achieving its targets. Readers should not place undue
reliance on forward-looking statements. More information about risks and
uncertainties affecting the Company and its business is available in Mega
Precious Metal's filings which are posted on sedar at www.sedar.com.


There is no guarantee that drill results reported in this news release will lead
to the identification of a deposit that can be mined economically, and further
work is required to identify a reserve or resource.


Neither TSX Venture Exchange nor its Regulation Services Provider (as that term
is defined in the policies of the TSX Venture Exchange) accepts responsibility
for the adequacy or accuracy of this release. 


FOR FURTHER INFORMATION PLEASE CONTACT: 
Mega Precious Metals Inc.
Glen Kuntz, P.Geo.
President, Chief Executive Officer & Director
807-766-3380 or TF: 877-592-3380
info@megapmi.com
www.megapmi.com

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