K92 Announces Increased Resource FOR Kora North Highlights Include:
Suite 488 – 1090 West Georgia Street
Vancouver, British Columbia
Canada V6E 3V7
Telephone: 1 (604) 687-7130
Facsimile: 1 (604) 608-9110
NEWS RELEASE
November 13, 2018 Vancouver, British Columbia
K92 ANNOUNCES INCREASED RESOURCE FOR KORA NORTH
HIGHLIGHTS INCLUDE:
The updated Mineral R esource estimate for the Kora North deposit comprises a
Measured Resource of 154,000 tonnes @ 18.7 g/t Au, 8.9 g/t Ag and 0.5% Cu; an
Indicated Resource of 690,000 tonnes @ 11.6 g/t Au, 14.1 g/t Ag and 0.8% Cu and
an Inferred Resources of 1 .92 million tonnes @ 11.4 g/t Au, 13.1 g/t Ag and 0.7%
Cu.
The total Measured, Indicated and Inferred Resource co vers an area of
approximately 400 to 5 00 metres on strike by 200 to 3 50 metres vertically,
representing approximately 1 5% of the target area to be drilled over the next 12
months.
K92 Mining Inc. (TSXV: KNT; OTCQX: KNTNF) (“K92” or “the Company” ) is pleased to
announce that an updated resource estimate has been completed at its Kora North deposit, based
on results from underground grade control, exploration diamond drilling and face sampling. The
updated resource estimate comprises a Measured Resource of 154,000 tonnes @ 18.7 g/t Au, 8.9
g/t Ag and 0.5% Cu; an Indicated Resource of 690,000 tonnes @ 11.6 g/t Au, 14.1 g/t Ag and
0.8% Cu and an Inferred Resource of 1 .92 million tonnes @ 10.7 g/t Au, 13.3 g/t Ag and 0 .7%
Cu. This represents an increase of over 20 % in the contained gold equivalent ozs for the
Measured and Indicated Resource and almost 30% for the Inferred Resource. See Table 1 below.
This updated resource estimate is based on results from 80 diamond drill holes drilled from
Diamond Drill Cuddies 1 , 2 , 3 and 4 (DDC1, DDC2 , DDC3 & DDC 4) and over 1,300 face
samples taken from horiz ontal development and from cut and fill faces along the K1 and K2
lodes. The resource estimate covers an area of approximately 400 to 500 metres along strike by
200 to 350 metres vertically (see K1 and K2 long sections below ), representing approximately
15% of the target area of 1,000 metres along strike by up to 1,000 metres vertically which the
Company plans to drill from underground over the coming 12 months.
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The updated resource estimate has been defined after just twelve months of underground
exploration drilling and represents, at the design production levels of 50 - 70,000 o unces per
annum; almost seventeen years of production.
Table 1 - Kora North Mineral Resource
Global Mineral Resources Kora North Gold-Copper Mine October 2018
Category Tonnes Gold Silver Copper AuEq
Mt g/t Mozs g/t Mozs % Mlbs g/t Mozs
Measured 0.15 18.7 0.09 8.9 0.04 0.5 1.6 19.6 0.09
Indicated 0.69 11.6 0.26 14.1 0.31 0.8 11.8 12.9 0.29
Total M & I 0.85 12.9 0.35 13.1 0.36 0.7 13.3 14.1 0.39
Inferred Total 1.92 10.7 0.66 13.3 0.82 0.7 29.5 11.9 0.74
Mineral Resources estimated prepared and verified by Simon Tear (PGEO), consultant to the Company and a
director of independent consultancy H & S Consultants Pty. Ltd., Sydney, Australia (October 2018)
Key Assumptions and Parameters
Mineralization comprises two parallel, steeply west dipping, N -S striking quartz -sulphide vein systems,
K1 & K2, within an encompassing dilatant structural zone hosted by phyllite. An additional structure, the
Kora Link, has also been defined and provides a possible link between the two main vein systems.
Underground drilling consists of diamond core for a range of core sizes depending on length of hole and
expected ground conditions. Sampling is sawn half core under geologic al control and generally ranges
between 0.5m and 1m. Underground face sampling is completed for every fired round and is to industry
standard.
QAQC data indicated no significant issues with the accuracy of the on-site analysis.
Core recovery of the mineral zone was initially 90%, this has improved to >95%. There is no relationship
between core recovery and gold grade.
Geological logging is consistent and is based on a full set of logging codes covering lithology, alteration
and mineralization.
The geological interpretation of the vein systems is represented as 3D wireframe solids snapped to a
combination of diamond drillhole data and underground face sampling. Definition of the wireframes is
based on identified gold mineralisation in drillcore nomi nally at a 0.2g/t Au cut off in conjunction with
geological control/sense and current mining widths.
Gold Equivalent (Au Eq) g/t was calculated using the formula Au g/t +(Cu% x 1.53) + Ag g/t x 0.0127.
(No account of metal recoveries through the plant have been used in calculating the metal equivalent
grade. However, production is currently achieving 93% metal recovery for both gold and copper and gold
is currently providing 95% and copper 5% of the total revenue of the mine).
Gold price US$1,300/oz; Silver US$16.5/oz; Copper US$2.90/lb.
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Plan Long Section
Green = K1 Lode; Cyan = K2 Lode; Purple = Kora Link; drillhole traces & face sampling included
The wireframes were used to extract a total of 2,159 1 -metre composites from the drillhole & sampling
database for gold, copper and silver. No gold top cuts were applied to composites for the two main vein
systems; the Kora Link had a top cut of 200ppm Au. Silver top cuts of 50 and 200ppm were applied to
the K1 and K2 composite data. No top cu t was applied to the copper composites. Coefficients of
variation for the gold composite data were relatively low for this mineral type, around the 2 to 2.5 mark.
Variography indicated modest strike continuity with a tendency for greater grade continuity i n the dip
direction, downhole grade continuity was poor as would be expected for this type of mineralisation.
Grade interpolation of the composite data was completed using Ordinary Kriging with a block size of 1m
by 5m by 5m to reflect the close spaced dri lling for K1 and the face sampling. A larger block size check
model indicated no evidence of over-smoothing of gold grade with the smaller block size.
Default average density values have been applied to the different lodes. The defaults are based on limit ed
core measurements using the Archimedes Method (weight in air/weight in water).
An initial 3 Pass search strategy was applied in the grade interpolation with two additional passes. Search
ellipse parameters are listed below. Search ellipse orientations generally reflected the subtle changes in
dip and strike of the vein systems. Two search domains were used for K1, four search domains were used
for K2 and one for the Kora Link.
Pass No X radius (m) Y radius (m) Z radius (m) Min Data Min Octants Max Data
1 2 25 25 12 4 32
2 4 50 50 12 4 32
3 4 75 75 12 4 32
4 5.25 100 100 12 4 32
5 5.25 100 100 6 2 32
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Allocation of the classification of the Mineral Resources is derived from the search pass numbers which
essentially is a function of the drillhole and face sample data point distribution. Additional considerations
were included in the assessment of the classification ; in particular , the geological understanding and
complexity of the deposit, sample recovery, quality of the QAQC sampling and outcomes, density data
and reconciliation with production.
Pass Category Resource Classification
1 Measured
2 Indicated
3 Inferred
4 Inferred
5 Inferred
All material mined within the mineral wireframes up to the effective date (as of the end of September
2018) has been removed from the model. Gold reconciliation of the resource model with production up to
the effective date has been good with the mill production in terms of recovered ounces being less than
10% above that estimated by the model.
The Inferred Mineral Resources in this estimate have a lower level of confidence than that applied to an
Indicated Mineral Resource and must not be converted to a Mi neral Reserve. It is reasonably expected
that the majority of the Inferred Mineral Resource could be upgraded to an Indicated Mineral Resource
with continued exploration.
The estimate of Mineral Resources may be materially affected by environmental, permi tting, legal, title,
taxation, socio-political, marketing, or other relevant issues.
Mineral Resources which are not Mineral Reserves do not have demonstrated economic viability.
John Lewins, K92 Chief Executive Officer and Director, states, “In just twelve months of
underground drilling, K92 has gone from commencing a resource definition program to defining
a Measured and Indicated Resource at Kora North of 850,000 tonnes at 14. 1 g/t AuEq
containing 390,000 AuEq ozs and an Inferred Resource of 1.92 million tonnes at 11.9 g/t AuEq
containing 740,000 AuEq ozs. This resource covers under 15% of the total area of 1,000 metres
by 1,000 metres that we plan to drill out from underground over the next twelve months. The
Measured and Indicated Resources alone r epresents almost six years of production at current
design levels of 50 - 70,000 ozs AuEq . This has been achieved while at the same time
establishing a new mining operation on the Kora deposit which is on track to produce 45,000 ozs
AuEq for 2018 at a cash cost of less than US$600 per oz AuEq and an AISC of less than US$800
per ounce.”
This new resource estimate is currently being used to update the existing Preliminary Economic
Assessment (PEA) which K92 has filed and made available for download on the Company's
SEDAR profile . It is anticipated that the new PEA will be completed in approximately one
month.
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The updated Mineral Resource Estimate supersedes the PEA and the PEA can no longer be
considered current.
The technical report titled , "Independent Technical Report, Mineral Resource Update and
Preliminary Economic Assessment of Irumafimpa and Kora Gold Deposits, Kainantu Project,
Papua New Guinea," with an effective date of March 2, 2017, provides additional information on
the geology of the deposits, drilling and sampling procedures, lab analysis, and quality
assurance/quality control for the project, and additional details on the resource estimates.
The existing PEA estimate s for Kora , based on the resource estimate filed on March 2, 2017
(4.36 million tonnes of 7.3 g/t Au, 35 g/t Ag and 2.23 percent Cu) , therefore excluding Kora
North:
Over a nine-year operating life, the plant would treat 3.2 million tonnes averaging 7.1 g/t
Au, 25 g/t Ag and 1.7 percent Cu (9.3 g/t AuEq(1));
This would generate an estimated positive cash flow of US $537 million using current
metal prices if 15 -metre levels are used in mining; if 25 -metre levels are used, then net
cash flows are estimated as US $558 million; this cash flow includes conceptual
allowances for capital;
Production of an estimated average of 108,000 AuEq (1) ounces per annum over an eight -
year period from year 2 through to year 9;
An estimated pretax net present value (NPV) of US $415 million for 25-metre levels, or
US $397 million for 15 -metre levels, using current metal prices, exchange rates and a 5
percent discount;
An estimated after-tax NPV of US $329 million for 25-metre levels, or US $316 million
for 15-metre levels, using current metal prices, exchange rates and a 5 percent discount;
Initial capital cost is estimated to be US $13.8 million, including the US $3.3 million for
the plant upgrade identified in the Mincore scoping study, but excluding the proposed
Kora exploration inc lines and diamond drilling; sustaining capital cost is estimated to a
further $64-million (U.S.) spent over the life of the Kora mining for 25 -metre levels, or
US $83 million for 15-metre levels; and
Operating cost per tonne is estimated to be US $125 per tonne for 25-metre levels, or US
$126 per tonne for 15-metre mining levels;
Excluding initial capital expenditure of US $14 million, cash cost is estimated to be US
$547 per ounce AuEq (inclusive of a 2.5 percent net smelter return (NSR) royalty) and
all-in sustaining cost (AISC) of US $619 per ounce AuEq for 25 -metre mining levels, or
US $549 per ounce (inclusive of a 2.5 percent NSR royalty) and AISC of US $644 per
ounce AuEq for 15-metre mining levels.
(1) Gold equivalent calculated on metal prices.
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Metal prices used were $1,300 per ounce for gold, $18 per ounce for silver and $4,800 per tonne
for copper.
Kora remains open for expansion in every direction and strongly mineralized at the extent of all
drilling.
The 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, and there is no certainty that the PEA will be
realized. The technical report contains a full description of all underlying assumptions relating to
the PEA. Mineral resources that are not mineral reserves and do not have demonstrated
economic viability. The resource estimate used within this PEA has not incorporated the updated
mineral resource estimate. The results and conclusions of any updated PEA incorporating the
revised mineral resource, if completed, will be materially different than those previously
disclosed.
Table 2 IRUMAFIMPA AND KORA/EUTOMPI RESOURCES
Resource by Deposit and Category
Deposit Resource
Category
Tonnes Gold Silver Copper Gold
Equivalent
Mt g/t Moz g/t Moz % Mlb g/t Moz
Irumafimpa Indicated 0.56 12.8 0.23 9 0.16 0.28 37 13.4 0.24
Inferred 0.53 10.9 0.19 9 0.16 0.27 74 11.5 0.20
Kora/Eutompi Inferred 4.36 7.3 1.02 35 4.9 2.23 215 11.2 1.57
Total Indicated 0.56 12.8 0.23 9 0.16 0.3 4 13.4 0.24
Total Inferred 4.89 7.7 1.21 32 5.06 2.0 218 11.2 1.76
M in Table is millions. Reported tonnage and grade figures are rounded from raw estimates to
reflect the order of accuracy of the estimate. Minor variations may occur during the addition of
rounded numbers. Gold equivalents are calculated as AuEq = Au g/t + Cu%*1.52+ A g
g/t*0.0141.
K92 Mine Geology Manager and Mine Exploration Manager, Mr. Andrew Kohler, PGeo, a
Qualified Person under the meaning of Canadian National Instrument 43 -101 – Standards of
Disclosure for Mineral Projects, has reviewed and is responsible for the technical content of this
news release. Data verification by Mr. Kohler includes significant time onsite reviewing drill
core, face sampling, underground workings and discussing work programs and results with
geology and mining personnel.
ON BEHALF OF THE COMPANY,
John Lewins
Chief Executive Officer and Director
For further information, please contact the Company at +1-604-687-7130.
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K92 has a standard underground face sampling procedure in place in which face geological
mapping and channel samples are taken across the strike, at right angles to the drive walls at
intervals of approximately of 1.5m apart coinciding with the development advance of the
heading. A geologist determines the interval lengths across the face for each sample depending
on the geological character of the material. Two samples are taken per interval at waist and knee
height and the corresponding widths recorded. No greater than 1.5m intervals are allowed during
sampling. Samples are approximately 3.5kg in size. Assay for Au, Ag and Cu are averaged using
length weighting of the sample interval and then, coupled with the orientation of channel and
placed in the datab ase. Standard QAQC procedures are used for underground samples as
described in the ITR Mineral Resource Estimate and Preliminary Economic Assessment of
Irumafimpa and Kora Gold Deposits, Kainantu Project, PNG dated March 2, 2017.
NEITHER TSX VENTURE EXCHANGE NOR ITS REGULATI ON SERVICES PROVIDER
(AS THAT TERM IS DEF INED IN POLICIES OF THE TSX VENTURE EXCH ANGE)
ACCEPTS RESPONSIBILI TY FOR THE ADEQUACY OR ACCURACY OF THIS
RELEASE.
CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION: This news
release i ncludes certain “forward -looking statements” under applicable Canadian securities
legislation. Forward-looking statements are necessarily based upon a number of estimates and
assumptions that, while considered reasonable, are subject to known and unknown r isks,
uncertainties, and other factors which may cause the actual results and future events to differ
materially from those expressed or implied by such forward -looking statements. All statements
that address future plans, activities, events, or developmen ts that the Company believes, expects,
or anticipates will or may occur are forward -looking information, including statements
regarding the realization of the preliminary economic analysis for the Project, expectations of
future cash flows, the proposed pl ant expansion, potential expansion of resources and the
generation of further drilling results which may or may not occur. Forward -looking statements
and information contained herein are based on certain factors and assumptions regarding,
among other things, the market price of the Company’s securities, metal prices, exchange rates,
taxation, the estimation, timing and amount of future exploration and development, capital and
operating costs, the availability of financing, the receipt of regulatory approval s, environmental
risks, title disputes, failure of plant, equipment or processes to operate as anticipated, accidents,
labour disputes, claims and limitations on insurance coverage and other risks of the mining
industry, changes in national and local gover nment regulation of mining operations, and
regulations and other matters.. There can be no assurance that such statements will prove to be
accurate, as actual results and future events could differ materially from those anticipated in
such statements. Acco rdingly, readers should not place undue reliance on forward -looking
statements. The Company disclaims any intention or obligation to update or revise any forward -
looking statements, whether as a result of new information, future events or otherwise, except as
required by law.
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Kora North Long Sections – K1 and K2 Lodes
K1 gold grade distribution
K2 Lode, gold displayed
(view : looking west)(green lines = drillhole traces and face samples)
(view : looking east)(green lines = drillhole traces and face samples)