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K92 Announces More High Grade Kora Exploration Drill Results And Ongoing Development Of Kora Northern Extension

November 15, 2017
  • Drill Hole KMDD0024 records 11.5 m at 11 g/t Au, 12 g/t Ag and 0.32% Cu (7.76 g/t AuEq) plus 5.95m at 5.23 g/t Au, 19 g/t Ag and 1.97% Cu (8.50 g/t AuEq)
  • Development along strike now extends beyond 120 metres with mined grades averaging approximately 6.5 g/t Au and 1% Cu

K92 Mining Inc. (“K92”) is pleased to announce results from KMDD0024 which has been drilled 50 metres to the South and 60 metres above the current development. This hole has recorded significant intersections in both the K1 and K2 lodes (see table 1 & 2). These results extend the known Kora mineralization in this Northern Extension over a strike length of approximately 150 metres and a dip extent of approximately 100 metres.

In addition, the Company has continued to develop along the strike of the Kora Lode with a 3.5-4 metre x 4 metre drive in a northerly and southerly direction and has now mined over 7,000 tonnes of material at an average grade of approximately 6.5 g/t Au and 1% Cu. This material is being treated through the process plant on an ongoing basis, producing a copper-gold flotation concentrate.

Following on from the success of the results from this drive and the 25m x 25m “grade control” grid pattern K92 has completed initial mine designs for this area which include access to, and drives along the vein on the 1210 mRL and 1235 mRL. This will enable the first stopes to be mined from this Kora Northern Extension in early 2018.

The Company has also continued to develop the footwall drive parallel to the Kora Lode to the South and expects to complete a second drill cuddy by the end of the month, to allow drilling to commence on a second area of 150 metres by 150 metres on 25m x 25m “grade control” grid pattern.

John Lewins, K92 Chief Executive Officer and Director, states, “The ongoing results from the development along the Kora Lode and from the diamond drilling program have continued to build our confidence in the quality and continuity of this Northern Extension of Kora. We have now mined over 7,000 tonnes mined at an average grade of approximately 6.5 g/t Au and 1% copper from this strike drive an average width of approximately 3.5 metres and height of 4 metres over a continuous length of over 120 metres. We plan not only to continue to mine along strike on the current level, but to develop drives along strike on two upper levels, which will also allow stoping to commence in early 2018”.

The previously reported Kora extension discovery hole KMDD0009 recorded an intersection of 5.4 metres at 11.68 g/t gold, 25.5 g/t silver and 1.33 per cent copper from 154 metres downhole, is also located within the 100 metre strike length referred above (see K92 news release dated May 24, 2017, for details including true thicknesses).

Table 1 and 2 below provide a summary of the results from the latest diamond grade control drill hole drilled into the Kora Vein. Table 1 provides a summary of the significant intercepts from the hole, while Table 2 provides details of collar location and hole orientation.


Notes: Gold Equivalent uses Copper price – US$2.90/lb; Silver price US$16.5/oz and Gold price of US$1300/oz


Hole_id Collar location Collar orientation EOH depth (m)
Local north Local East RL Dip Local azimuth
KMDD0024 59123.63 29876.98 1190.06 40.29 223.78 99.8


The current Kora/Eutompi inferred resource, as defined by previous drilling to date, is 4.36 million tonnes at a grade of 7.3 g/t Au, 35 g/t Ag and 2.23 per cent Cu, or 11.2 g/t gold equivalent (see attached table) and is open for expansion at depth and in both directions along strike.

K92 has filed and made available for download on the company’s SEDAR profile a 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, that 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 PEA estimates for Kora, based on the current resource estimates (4.36 million tonnes of 7.3 g/t Au, 35 g/t Ag and 2.23 per cent Cu):

  • 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 per cent Cu (9.3 g/t AuEq (1));
  • This would generate an estimated positive cash flow of $537-million (U.S.) 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 $558-million (U.S.); 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 $415-million (U.S.) for 25-metre levels, or $397-million (U.S.) for 15-metre levels, using current metal prices, exchange rates and a 5-per-cent discount;
  • An estimated after-tax NPV of $329-million (U.S.) for 25-metre levels, or $316-million (U.S.) for 15-metre levels, using current metal prices, exchange rates and a 5-per-cent discount;
  • Initial capital cost is estimated to be $13.8-million (U.S.), including the $3.3-million (U.S.) for the plant upgrade identified in the Mincore scoping study, but excluding the proposed Kora exploration inclines 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 $83-million (U.S.) for 15-metre levels;
  • Operating cost per tonne is estimated to be $125 (U.S.) per tonne for 25-metre levels, or $126 (U.S.) per tonne for 15-metre mining levels;
  • Excluding initial capital expenditure of $14-million (U.S.), cash cost is estimated to be $547 (U.S.) per ounce AuEq (inclusive of a 2.5-per-cent net smelter return (NSR) royalty) and all-in sustaining cost (AISC) of $619 (U.S.) per ounce AuEq for 25-metre mining levels, or $549 (U.S.) per ounce (inclusive of a 2.5-per-cent NSR royalty) and AISC of $644 (U.S.) per ounce AuEq for 15-metre mining levels.

Metal prices used were $1,300 per ounce for gold, $18 (U.S.) per ounce for silver and $4,800 per tonne for copper.

(1) Gold equivalent calculated on above metal prices.

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.


  Resource by Deposit and Category
Deposit Resource


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+ Ag g/t*0.0141.

K92 Vice President Chris Muller, PGeo, a qualified person under the meaning of Canadian National Instrument 43-101, has reviewed and is responsible for the technical content of this news release. Data verification by Mr. Muller includes significant time onsite reviewing drill core, surface exposures, underground workings and discussing work programs and results with exploration personnel.


John Lewins, Chief Executive Officer and Director

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING INFORMATION: This news release includes 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 risks, 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 developments 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 plant 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 approvals, 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 government 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. Accordingly, 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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