Mexican Gold Mining Corp. (the “
Company” or
“
Mexican Gold”) (TSX-V:MEX) is pleased to announce
a positive Preliminary Economic Assessment (PEA) for its 100% owned
Las Minas Project in southeastern Mexico. Summary economic results
are as follows:
Las Minas PEA Financial Highlights,
including Metal Prices Sensitivity
|
Base Case (BC) |
Spot Price(Jul 29, 2021) |
Upside |
Downside |
Au (US$/oz) |
1625 |
1830 |
2000 |
1200 |
Ag (US$/oz) |
20 |
25.5 |
28 |
14 |
Cu (US$/lb) |
3.25 |
4.45 |
4.75 |
2.25 |
Magnetite Concentrate (US$/dmt) |
100 |
213.5 |
220 |
65 |
|
|
|
|
|
Cumulative Cash Flow (US$M) |
$99 |
$237 |
$276 |
-$22 |
After Tax NPV @ 5% (US$M) |
$55 |
$157 |
$187 |
-$37 |
After Tax NPV @ 8% (US$M) |
$35 |
$122 |
$148 |
-$43 |
After Tax IRR (%) |
16% |
31% |
35% |
-5% |
Capex Payback (Years) |
4.4 |
2.8 |
2.6 |
n/a |
EBITDA for First Year of Full Production (US$M) |
$43 |
$70 |
$77 |
$19 |
Notes:Metal prices for Upside and Downside cases
represent the individual metal historical 3-year highs and
lows.
The PEA is preliminary in nature and is
based on inferred mineral resources that are considered too
speculative geologically to have the economic considerations
applied to them that would enable them to be categorized as mineral
reserves, and there is no certainty that the preliminary economic
assessment will be realized. Mineral resources that are not mineral
reserves do not have demonstrated economic viability.
The Company also announces a new mineral
resource estimate, prepared in accordance with National Instrument
43-101, of 443,000 gold equivalent ounces within indicated
resources of 4.13 million tonnes at grades of 1.96 g/t gold, 4.64
g/t silver, 1.08% copper, 14.77% magnetite and 361,000 gold
equivalent ounces within inferred resources of 5.20 million tonnes
at grades of 1.44 g/t gold, 5.97 g/t silver, 0.95% copper, 17.54%
magnetite, all reported at a US$80 per tonne Net Smelter Return
(NSR) cut-off.
Philip O'Neill, CEO and Director of Mexican Gold
stated: "We are delighted with the economic results for our Las
Minas project which is based off our drilling to date at Las Minas.
This PEA study demonstrates robust economics with modest initial
capital and positive economic returns for the development of an
initial mining operation at Las Minas. The Company believes there
is significant resource upside with further drilling at Las Minas
both in the immediate area of the existing resource and through
exploration of multiple other targets on the mine property. In
addition to continuing advancement towards development to
production and positive cash flow, the Company will continue to
aggressively explore with the objective of building a larger
resource base. With success we believe there is good potential to
significantly increase the project economics above the base we have
now established. There are a number of precedent operations in
Mexico that have started at a more modest throughput rate based on
an initial resource base and then expanded throughput and cash flow
as additional resources have been defined through further
exploration. Capstone's Cozamin mine is one example."
Exploration Potential of Las Minas
Matt Liard, VP Exploration for Mexican Gold
stated: “The resource and stope modelling in the PEA show that
there is opportunity to bring further tonnage into the resource and
to bring further resource tonnage into the mine plan through infill
drilling. Several areas have been identified which show potential
for additional tonnes with a tighter drill pattern. In particular,
the entire northeast and northwest portions of the El Dorado Zone
and almost all of the Santa Cruz Zone require attention, along with
multiple smaller discrete enclaves and embayments within the main
stoping area.
Near the Las Minas resource (within <1km to
the north and northeast) there are several exploration targets on
the main El Dorado Zone contact horizon that have only been lightly
or partially investigated by drilling. The targets combine either
extensive historic mining activity (Cinco Senores and Changarro) or
a strong geophysical response (Carboneras) with a geological case
for mineral potential. Recent modelling work on the Santa Cruz Zone
has provided a breakthrough in the genetic and morphological
understanding of this deposit. This new knowledge should allow for
much better definition of the existing deposit and highlights the
potential for further similar deposits in the area.
The mineral potential of the region is well
known, being positioned over an active continental subduction zone.
Similar geological features and dozens of mineral showings appear
over an area of >100km2 centred on Las Minas, and there is
strong evidence that the productive El Dorado contact underlies
this entire area. The Las Minas area is also surrounded by various
mining districts which show every common type of cordilleran
mineral deposit.”
PEA Conceptual Design
Summary
The concept for recovery of the Las Minas
resource is through multiple underground mining methods at a
production rate of 1,400 t/d with the mineralized material being
hauled via truck to an underground crusher, where it is then
crushed and conveyed to the processing plant. Processing will
produce a copper concentrate containing gold and silver.
Additionally, the tailings would be processed to recover magnetite.
Tailings after magnetite recovery would be de-watered and pumped
underground as cemented paste backfill. Tailings not placed as
paste would be trucked to the tailings storage facility (TSF).
Production at the mine would ramp up in year 1, maintain full
production to the end of year 8, and decrease in year 9 as the
deposit is depleted.
|
Las Minas Resource Exploitation - PEA Highlights and
Project Performance |
|
Total Tonnes Mined |
4,043 kt |
Diluted Grades |
|
Gold |
1.84 g/t |
Silver |
5.53 g/t |
Copper |
1.06% |
Magnetite |
15.7% |
Mine Life |
8.5 years |
Average Annual Production |
|
Gold Equivalent Ounces |
45,000 |
Gold Ounces |
21,000 |
Silver Ounces |
24,000 |
Copper Pounds |
9,533,000 |
Magnetite Concentrate Tonnes |
75,000 |
|
|
Average Cash Cost Per Gold Equivalent Ounce |
US$786 |
Average Cash Cost Per Gold Ounce, Net of By-Product Credits |
US$158 |
Average AISC Per Gold Equivalent Ounce |
US$928 |
Average AISC Per Gold Ounce, Net of By-Product Credits |
US$145 |
Initial CAPEX |
US$90.4 M |
Sustaining CAPEX |
US$54.7 M |
Processing Plant Recoveries |
|
Gold |
80% |
Silver |
70% |
Copper |
90% |
Magnetite |
90% |
Notes:LOM Metal Prices - US$1,625/oz. Au,
US$3.25/lb. Cu, US$20.00/oz. Ag, US$100/t Magnetite Concentrate
The following is the projected production for
the Las Minas project over the expected life of the mine.
Las Minas PEA Mine Production from
Indicated and Inferred Resources
Production Year |
Au (K oz) |
Ag (K oz) |
Cu (M lbs) |
Magnetite (k tonnes) |
1 |
32 |
57 |
4 |
32 |
2 |
29 |
96 |
13 |
79 |
3 |
32 |
76 |
11 |
66 |
4 |
34 |
65 |
10 |
62 |
5 |
31 |
84 |
13 |
66 |
6 |
27 |
91 |
13 |
86 |
7 |
23 |
108 |
13 |
103 |
8 |
23 |
92 |
12 |
94 |
9 |
9 |
48 |
6 |
48 |
Total |
239 |
719 |
94 |
635 |
Notes:Assumed metal prices over life of mine:
Gold US$1,625/oz - Silver US$20/oz - Cu US$3.25/lb – Magnetite
Concentrate US$100/t.
Geology
The Las Minas project is located in southeastern
Mexico within the eastern portion of the Trans Mexico Volcanic Belt
(TMVB), an east-west belt of Miocene to recent volcanic rocks that
transects the country from the Pacific coast to the Gulf of Mexico.
The pre-Miocene basement in the Las Minas region consists of a
sequence of Jurassic and Cretaceous marine sedimentary rocks
including sandstone, siltstone, limestone and shale. These have
been intruded by Tertiary and Mesozoic plutonic rocks mapped as
dominantly granodiorite and porphyritic dacite, with lesser amounts
of granite, diorite and tonalite.
Copper and gold mineralization have been
recognized in three settings within the Las Minas property:
proximal skarn, distal skarn and quartz veins. Proximal-type skarn
is the dominant skarn alteration observed within the Las Minas
resource zones (El Dorado and Santa Cruz) while distal and
gold-bearing quartz veins occur in the exploration targets to the
east and north of the Las Minas resources.
Proximal skarn developed along marble-diorite
contacts, both as exoskarn developed within the sedimentary rock,
and as endoskarn developed within the intrusion. The skarn
alteration has a typical zoning of
marble-exoskarn-endoskarn-diorite. The distinction between exoskarn
and endoskarn can be very difficult because the skarn alteration
(especially garnet replacement) can be texturally destructive.
Proximal skarn alteration is dominantly
garnet-rich with lesser amounts of pyroxene, and locally garnet
appears to have replaced pyroxene. The skarn contains variable
amounts of magnetite and lesser sulfide minerals.
Within the Las Minas resource zones,
chalcopyrite is the dominant sulfide mineral with lesser amounts of
bornite and pyrite. Sulfide grains usually are associated with
magnetite and are present as relatively coarse-grained
disseminations while sulfide blebs, bands, and veinlets cutting
magnetite are also observed. Pyrite occurs as an accessory mineral
in the main resource area.
Gold-silver-copper mineralization at El Dorado
zone occurs as two horizons that are separated by a barren
north-northwest trending diorite dike. The current modeling
indicates that the El Dorado skarn zone on the west side of the
diorite dike has an 800 m northwest strike length, extends up to
450 m to the southwest away from the diorite dike, is on average 15
to 20 m thick, and can reach over 50 m in thickness along the
northwest-striking contact with the diorite dike. In contrast, the
El Dorado zone on the east side of the dike has a strike length of
250 m northwest, extends up to 200 m to the northeast from the
diorite dike, and is 5 to 10 m in thickness.
The Santa Cruz zone lies about 0.5 km south of
the Las Minas pueblo and is well exposed on a west-facing canyon
wall just above a tributary of the Rio Las Minas. Skarn within the
Santa Cruz zone lies along the west side of the dike, immediately
to the south of and stratigraphically higher than the El Dorado
zone. The primarily east-dipping mineralization at Santa Cruz is
more complex and discontinuous than observed at El Dorado due to
the more variable intrusive-marble contact orientations (both
near-vertical dike and east-dipping sills).
Mineral Resource Estimates
The mineral resource estimates for Las Minas
were prepared to industry standards and best practices and verified
by Garth Kirkham, P.Geo., an Independent Qualified Person for the
purposes of NI 43-101.
Within the Las Minas Project, 206 drill holes
(32,058 meters) supports the mineral resource estimate. The deposit
was segregated into multiple estimation domains based on geologic
models for each of the mineralized units. The estimated mineral
resources occur within the Las Minas gold-copper-silver-magnetite
skarn deposit, which consists of the mineralized endo-skarn and
exo-skarn units within the El Dorado and Santa Cruz zones. The
mineral domains were then used to code the block model, and assays
within the modeled domains were evaluated geostatistically to
establish estimation parameters. Assays were composited into
2-meter lengths. MineSightTM, a commercially available geologic
modeling and mine planning software package, was used to produce a
three-dimensional block model while LeapFrogTM Software was
utilized to produce the solids models for the estimation
domains.
The gold, copper, silver and iron grades were
estimated into a three-dimensional, 12 m by 12 m by 3 m block model
which was sub-blocked to 0.5 m in three dimensions. Gold (Au g/t),
copper (Cu%), silver (Ag g/t) and total iron (Fe%) block grades
were estimated from capped composited samples in a single pass. The
mineral resources were estimated using ordinary kriging
interpolation for the continuous mineralized domains. Search
ellipse anisotropy and orientation were guided by the orientation
of the domain solids models and omni-directional ellipsoids were
employed in the individual zones.
Magnetite estimates were based on applying
mathematical regression, as derived from SATMAGAN testing results,
to the Total Fe% estimates. A total of 2,601 specific gravity
readings were derived from measurements within individual rock
types and estimated on a block-by-block basis using inverse
distance.
Mineral resources are classified in accordance
with the 2014 CIM Definition Standards for Mineral Resources and
Mineral Reserves, and the 2019 CIM Estimation of Mineral Resources
and Mineral Reserves Best Practice Guidelines.
Mineral Resources are classified under the
categories of Indicated and Inferred according to CIM guidelines.
Mineral Resource classification was based primarily on drill hole
spacing and on continuity of mineralization. There are no measured
resources at Las Minas. Indicated resources were defined as blocks
with a distance to three drill holes of less than ~30 m to nearest
composite and occurring within the estimation. Inferred resources
were defined as those with a drill hole spacing of less than ~60
m.
Final resource classification shells were
manually constructed on plan sections and all resources are
constrained within lithological domains and by the continuous
solids. Final Resource classification shells were manually
constructed on sections. These interpreted boundaries were created
for the indicated and inferred thresholds in order to exclude
orphans and reduce potential “spotted dog” effect.
This estimate is also based upon the reasonable
prospect of eventual economic extraction using estimates of
reasonable operating costs and price assumptions. The mineral
resources do not represent an attempt to estimate Mineral
Reserves.
The Las Minas resources are reported in the
following Table at a base case cut-off of US$80 NSR.
Las Minas Deposit Indicated and Inferred
Mineral Resource Estimate at a US$80 NSR
Class |
Tonnes |
NSR(US$) |
Au(g/t) |
Au ('000ounces) |
Ag(g/t) |
Ag ('000ounces) |
Cu(%) |
Cu ('000lbs) |
FeMagnetite(%) |
FeMagnetite('000 tonnes) |
AuEQ(g/t) |
AuEq('000 ounces) |
Indicated |
4,133 |
138.58 |
1.96 |
260 |
4.64 |
617 |
1.08 |
98,311 |
14.77 |
610 |
3.34 |
443 |
Inferred |
5,200 |
112.83 |
1.44 |
241 |
5.97 |
997 |
0.95 |
108,802 |
17.54 |
912 |
2.16 |
361 |
Notes:
- Mineral Resource Statement prepared
by Garth Kirkham (Kirkham Geosystems Ltd.) in accordance with NI
43-101.
- Effective date: July 27, 2021. All
Mineral Resources have been estimated in accordance with Canadian
Institute of Mining and Metallurgy and Petroleum (“CIM”)
definitions, as required under NI 43-101.
- Mineral resources reported
demonstrate reasonable prospect of eventual economic extraction, as
required under NI 43-101. Mineral resources are not Mineral
Reserves and do not have demonstrated economic viability.
- Underground Mineral Resources are
reported at a cut-off grade of US$80 NSR. Cut-off grades are based
on a price of US$1,700/oz gold, US$20/oz silver, US$3.50/lb copper
and US$100/tonne magnetite concentrate and a number of operating
cost and recovery assumptions, including a reasonable contingency
factor.
- Numbers are rounded.
- An Inferred Mineral Resource has a
lower level of confidence than that applying to an Indicated
Mineral Resource and must not be converted to a Mineral Reserve. It
is reasonably expected that the majority of Inferred Mineral
Resources could be upgraded to Indicated Mineral Resources with
continued exploration.
- The Mineral Resources may be
affected by subsequent assessment of mining, environmental,
processing, permitting, taxation, socio-economic and other
factors.
The table below illustrates the sensitivity of
the indicated and inferred mineral resource estimate to changes in
cut-off grade. The base case at a cut-off grade of US$80 NSR is
highlighted in bold. The table suggests that the mineral resource
estimate is moderately sensitive to cut-off grade in terms of
estimated contained metal.
Sensitivity of Las Minas Indicated and
Inferred Mineral Resource Estimate to Cut-Off Grade (base case is
highlighted)
Class |
NSRCOG (US$) |
Tonnes |
NSR(US$) |
Au(g/t) |
Au ('000ounces) |
Ag(g/t) |
Ag ('000ounces) |
Cu(%) |
Cu ('000lbs) |
FeMagnetite(%) |
FeMagnetite('000 tonnes) |
AuEQ(g/t) |
AuEq ('000ounces) |
Indicated |
>=60 |
5,431 |
122.00 |
1.71 |
299 |
4.27 |
746 |
0.95 |
114,341 |
13.84 |
752 |
2.94 |
514 |
|
>=70 |
4,750 |
130.25 |
1.83 |
280 |
4.44 |
678 |
1.02 |
106,373 |
14.35 |
682 |
3.14 |
479 |
|
>=80 |
4,133 |
138.58 |
1.96 |
260 |
4.64 |
617 |
1.08 |
98,311 |
14.77 |
610 |
3.34 |
443 |
|
>=90 |
3,549 |
147.47 |
2.09 |
239 |
4.87 |
555 |
1.14 |
89,467 |
15.31 |
543 |
3.55 |
405 |
|
>=100 |
3,009 |
156.99 |
2.24 |
217 |
5.12 |
495 |
1.21 |
80,326 |
16.19 |
487 |
3.77 |
365 |
|
>=110 |
2,572 |
165.96 |
2.38 |
197 |
5.36 |
444 |
1.27 |
72,146 |
16.86 |
434 |
3.98 |
329 |
Inferred |
>=60 |
6,769 |
102.84 |
1.32 |
287 |
5.49 |
1,195 |
0.86 |
128,586 |
16.23 |
1,099 |
1.97 |
428 |
|
>=70 |
6,012 |
107.69 |
1.38 |
266 |
5.73 |
1,108 |
0.91 |
119,959 |
16.95 |
1,019 |
2.06 |
398 |
|
>=80 |
5,200 |
112.83 |
1.44 |
241 |
5.97 |
997 |
0.95 |
108,802 |
17.54 |
912 |
2.16 |
361 |
|
>=90 |
4,228 |
119.33 |
1.54 |
209 |
6.19 |
842 |
1.00 |
93,057 |
18.00 |
761 |
2.29 |
311 |
|
>=100 |
3,226 |
127.04 |
1.67 |
173 |
6.44 |
668 |
1.05 |
74,354 |
18.24 |
589 |
2.44 |
253 |
|
>=110 |
2,106 |
138.88 |
1.84 |
125 |
7.07 |
479 |
1.14 |
52,930 |
18.42 |
388 |
2.66 |
180 |
Notes:
- Mineral Resource Statement prepared
by Garth Kirkham (Kirkham Geosystems Ltd.) in accordance with NI
43-101.
- Effective date: July 27, 2021. All
Mineral Resources have been estimated in accordance with Canadian
Institute of Mining and Metallurgy and Petroleum (“CIM”)
definitions, as required under NI 43-101.
- Mineral resources reported
demonstrate reasonable prospect of eventual economic extraction, as
required under NI 43-101. Mineral resources are not Mineral
Reserves and do not have demonstrated economic viability.
- Underground Mineral Resources are
reported at a cut-off grade of US$80 NSR. Cut-off grades are based
on a price of US$1,700/oz gold, US$20/oz silver, US$3.50/lb copper
and US$100/tonne magnetite concentrate and a number of operating
cost and recovery assumptions, including a reasonable contingency
factor.
- Numbers are rounded.
- An Inferred Mineral Resource has a
lower level of confidence than that applying to an Indicated
Mineral Resource and must not be converted to a Mineral Reserve. It
is reasonably expected that the majority of Inferred Mineral
Resources could be upgraded to Indicated Mineral Resources with
continued exploration.
- The Mineral Resources may be
affected by subsequent assessment of mining, environmental,
processing, permitting, taxation, socio-economic and other
factors.
Mining Methods
The mining methods proposed are a split of
lateral and stoping methods. Long-hole stopes account for 52% of
production, 41% from room and pillar, and the remaining 7% from
development. Full production of 1,400t/d is achieved in year 2 and
sustained for the remainder of the mine life. The design allows for
multiple production areas. Stopes are sequenced using a
primary-secondary layout and are backfilled using cemented tailings
(paste) and development waste rock. Room and pillar areas are
mainly mined as a single lift; however, in areas where the
mineralization is thicker, multiple lifts might be required.
Development waste and lightly cemented tailings are used as
backfill in the room and pillar zones as a way of decreasing waste
and tailings quantities on surface. The mine will be developed
using a conventional mechanized underground mining fleet consisting
of development jumbos, longhole drills, bolters, LHDs, and haul
trucks. The equipment and operation will be owner operated. Stope
optimization and design was based on geotechnical design criteria
and a NSR cut-off value of US$90/tonne.
Material Handling
An underground crusher would be located in the
upper mining area of Eldorado Zone. Mineralized material would be
crushed underground and fed onto a conveyor that crosses the river
located near the process plant. At that point, the crushed material
would be fed into the mill. Placing the crusher underground would
decrease noise on surface and help reduce surface building
congestion. Tailings from the process plant would be de-watered and
either trucked to the TSF or mixed with water and cement to form
paste. Paste would be pumped underground for use as backfill.
Binder content varies depending on the mining area being
backfilled.
Mining Method |
% of total |
Tonnes x 1000 |
Development |
7% |
279 |
Long-hole Stoping |
52% |
2,087 |
Room and Pillar |
41% |
1,677 |
Total |
100% |
4,043 |
Development Type |
Metres |
Lateral Development – Waste |
8,426 |
Lateral Development – Mineralized (includes Room & Pillar) |
20,488 |
Vertical Development – Waste |
260 |
Total Development |
29,174 |
Processing
The Las Minas ore responds well to traditional
copper flotation strategies, which the mill circuit’s conceptual
design is based on. In addition, the high values of magnetite in
the ore allow for magnetite recovery from the copper tailings. The
mill circuit consists of crushing, grinding, gravity gold recovery,
flotation and magnetic separation.
The copper in this deposit is mostly found in
chalcopyrite, bornite and chalcocite minerals which tend to float
very well. The gold is mostly associated with sulphide minerals and
therefore recovers well to the flotation concentrate. The flotation
circuit utilizes a primary grind of 150 µm, but the testwork does
leave room for a coarser grind to be tested in the future.
The process recovers copper and gold at 90% and
85% respectively, into a copper concentrate with high gold grades
(>25 g/t), and magnetite recoveries of over 90%. The magnetite
concentrate from the conceptual design would be sold to iron ore
smelters, but testwork identified that upgrading to magnetite for
dense media separation is possible.
Infrastructure & Tailings
Management
The village of Las Minas is within kilometers of
a high-speed road and rail corridor. It is 250 km from Mexico City
and 160 km from the Gulf port of Veracruz.
Within the resource area, there is a small
hydroelectric facility supplied by steel penstock tubes from a
reservoir several hundred metres up the ridge. This has been
assessed as the most viable and efficient option for power supply
of the project while supporting the local power plant. The area has
an existing road network, abundant water and a highly collaborative
local labour pool.
The conceptual design off the overall project
layout considers the natural topography when locating the plant,
camp, offices and truck shop, in conjunction with the town of Las
Minas.
Tailings generated from mineral processing will
be stored in an engineered TSF. Filtered (dry stack) tailings
technology will be utilized for removal of free draining liquids
from the tailings during operations, and water conservation.
Approximately 50% of the generated tailings will be stored on
surface in the TSF after removing magnetite and using paste
tailings for underground mine backfill. Filtered tailings will be
delivered by truck and spread and compacted in the TSF. The
facility will be developed in stages over the life of the project
and at closure the tailings surface will be covered with a suitable
growth media and revegetated.
PEA - Planned Costs |
(US$/t processed) |
Mining |
US$35.83 |
Processing |
US$14.55 |
G&A |
US$7.37 |
Treatment |
US$16.70 |
Metal Prices Sensitivity
|
20% < BC |
10% < BC |
Base Case (BC) |
10% > BC |
20% > BC |
Cumulative Cash Flow (US$M) |
$17 |
$58 |
$99 |
$140 |
$182 |
After Tax NPV @ 5% (US$M) |
-$7 |
$24 |
$55 |
$86 |
$117 |
After Tax NPV @ 8% (US$M) |
-$18 |
$8 |
$35 |
$62 |
$88 |
After Tax IRR (%) |
3% |
10% |
16% |
21% |
26% |
Capex Payback (Years) |
7.1 |
5.4 |
4.4 |
3.7 |
3.2 |
EBITDA for First Year of Full Production (US$M) |
$27 |
$35 |
$43 |
$51 |
$59 |
Notes:Base Case metal prices over life of mine:
Gold US$1,625/oz. - Silver US$20/oz. - Cu US$3.25/lb. – Magnetite
Concentrate US$100/t
Quality Assurance and Quality Control
(QA/QC)
All Las Minas project drill and surface samples
have been sent to SGS for processing, except for a limited number
of second-lab QA/QC check samples that were sent to ALS Minerals.
SGS is presently accredited by the International Organization for
Standardization (ISO) and has ISO 9001 certification and fulfills
ISO/IEC 17025 testing requirements.
Samples were prepared following protocol for
mineral sample preparation including weighing, drying, crushing,
sieving, splitting, and pulverization. Samples were analyzed for
gold and silver using fire assay techniques, and for copper and 33
other elements using inductively coupled plasma - atomic emission
spectroscopy (“ICP-AES”) techniques. SGS has used the same
analytical methods and procedures for all of Mexican Gold’s drill
samples commencing in 2011.
QA/QC samples were inserted into the sample
stream sent to SGS on a regular basis for all Mexican Gold drill
campaigns. The QA/QC samples consisted of pulp blanks, certified
reference materials, and duplicate samples. The duplicates samples
consisted of field duplicates (quarter-core splits), preparation
pulp duplicates from coarse rejects, and second-lab pulp re-assays.
The QA/QC samples have made up about 10% of the total samples
analyzed.
Qualified Persons
The scientific and technical data contained in
this news release pertaining to the Las Minas Project has been
reviewed and approved by the following Qualified Persons, who
consent to the inclusion of their names in this release: Gord
Doerksen, P.Eng. (Infrastructure, Cost Estimates), Michael
Makarenko, P.Eng. (Mining), Michael Levy, P.Eng. (Geotechnical),
Garth Kirkham, P.Geo. (Geology, Exploration, Resources), Tad
Crowie, P.Eng. (Processing), Ken Embree, P.Eng. (Tailings
Management), Tysen Hantelmann, P.Eng. (Economic Analysis), each of
whom is independent of the Company.
The scientific information in this news release
was reviewed and approved by Sonny Bernales, P.Geo., Senior
Geologist and Project Manager for Mexican Gold.
PEA Report
The PEA for the Las Minas Project is in
accordance with National Instrument 43-101. The PEA will be filed
on SEDAR, within the time frame required under National Instrument
43-101, and will be available at that time on the corporate
website.
About Mexican Gold Mining
Corp.
Mexican Gold is a Canadian-based mineral
exploration and development company committed to building long-term
value through ongoing discoveries and strategic acquisitions of
prospective precious metals and copper projects in the Americas.
Mexican Gold is exploring and advancing the Las Minas Project,
which is located in the core of the Las Minas mining district in
Veracruz State, Mexico, and host to one of the newest,
under-explored skarn systems known in Mexico.
For more information, please contact:
Philip O’Neill – CEO, President, and
DirectorE-mail: info@mexicangold.caWebsite: www.mexicangold.ca
CAUTIONARY NOTES
PRELIMINARY ECONOMIC
ASSESSMENT
A preliminary economic assessment should not be
considered a prefeasibility study or feasibility study, as the
economics and technical viability of the Las Minas Project have not
been demonstrated at this time. The Las Minas PEA is preliminary in
nature and includes inferred mineral resources that are considered
too speculative geologically to have the economic considerations
applied to them that would enable them to be categorized as mineral
reserves. It cannot be assumed that all or any part of the inferred
resources will ever be upgraded to a higher category. Furthermore,
there is no certainty that the conclusions or results as reported
in the Las Minas PEA will be realized. Mineral resources that are
not mineral reserves do not have demonstrated economic
viability.
FORWARD LOOKING STATEMENTS
This press release contains “forward-looking
information” within the meaning of applicable Canadian securities
legislation. Forward- looking information includes, without
limitation, information with respect to proposed exploration and
development activities and their timing, resource estimates and
potential mineralization, the PEA, including estimates of capital
and sustaining costs, anticipated internal rates of return, mine
production, estimated recoveries, mine life, estimated payback
period, net present values, and earnings before interest,
depreciation and amortization. Generally, forward-looking
information can be identified by the use of terminology such as
“plans”, “expects”, “estimates”, “intends”, “anticipates”,
“believes”, “potential”, or variations of such words, or statements
that certain actions, events or results “may”, “could”, “would”,
“might”, “will be taken”, “occur” or “be achieved”. Forward-looking
information is subject to known and unknown risks, uncertainties
and other factors that may cause the Company’s actual results,
level of activity, performance or achievements to be materially
different from those expressed or implied by such forward-looking
information, including, without limitation, forward-looking
statements and assumptions pertaining to the following: uncertainty
as a result of the preliminary nature of the PEA and the Company’s
ability to realize the results of the PEA, uncertainty regarding
the inclusion of inferred mineral resources in the mineral resource
estimate and the Company’s ability to upgrade the inferred mineral
resources to a higher category, uncertainty regarding the ability
to convert any part of the mineral resource into mineral reserves,
uncertainty involving resource estimates and the ability to extract
those resources economically, or at all, uncertainty involving
drilling programs and the Company’s ability to expand and upgrade
existing resource estimates, the regulatory process and actions,
and those risk factors identified in the Company’s annual
information form and management’s discussion and analysis.
Forward-looking information is based on the reasonable assumptions,
estimates, analysis and opinions of management made in light of its
experience and perception of trends, current conditions and
expected developments, and other factors that management believes
are relevant and reasonable in the circumstances at the date such
statements are made. Although the Company has attempted to identify
important factors that could cause actual results to differ
materially from those contained in forward-looking information,
there may be other factors that cause results not to be as
anticipated. There can be no assurance that such information will
prove to be accurate, as actual results and future events could
differ materially from those anticipated in such information.
Accordingly, readers should not place undue reliance on
forward-looking information. The Company does not undertake to
update any forward-looking information, except in accordance with
applicable securities laws.
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