K92 Mining Announces Filing of Amended Technical Reports for Blue Lake Mineral Resource Estimate and Updated Kainantu Gold Mine Definitive Feasibility Study

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K92 Mining Inc.
K92 Mining Inc.

VANCOUVER, British Columbia, March 31, 2025 (GLOBE NEWSWIRE) -- K92 Mining Inc. (“K92” or the “Company”) (TSX: KNT; OTCQX: KNTNF) announces that it has filed amended technical reports (the “Amended Updated DFS Technical Report” and the “Amended Blue Lake Technical Report”) for its Blue Lake Porphyry Deposit (the “Blue Lake Deposit”) and its Kainantu Gold Mine Project (the “Kainantu Project”) in Papua New Guinea, as part of a continuous disclosure review completed by the British Columbia Securities Commission. The Company previously filed the following technical reports:

  • report titled, “Independent Technical Report, Mineral Resource Estimate Blue Lake Porphyry Deposit, Kainantu, Papua New Guinea” September 20, 2022, with an effective date of August 1, 2022, prepared by Simon Tear BSc (Hons), EurGeol, PGeo IGI, and Anthony Woodward BSc (Hons), M.Sc. (the “September 2022 Blue Lake Technical Report”); and

  • report titled, “Independent Technical Report, Kainantu Gold Mine, Updated Integrated Development Plan, Kainantu Project, Papua New Guinea” dated November 28, 2024, with an effective date of January 1, 2024, prepared by Qualified Persons, Andrew Kohler BAppSc (Geol), PGCert (Geostatistics), MAIG; Simon Tear BSc (Hons), EurGeol, PGeo (IGI); Brendan Mulvihill MAusIMM (CP Met), RPEQ; Daniel Donald BEng (Hons) (Mining), MBA, FAusIMM, MSME; Dr. Evan Kirby BSc (Hons), FSAIMM; Isaac Ahmed P.Eng; Ralph Holding CPEng, FIEAust; and Nicholas Currey MAusIMM (the “November 2024 Kainantu Technical Report”).

The Amended Blue Lake Technical Report supersedes and replaces the September 2022 Blue Lake Technical Report and reflects the removal of the copper equivalent inferred resource calculation, and the incorporation of metallurgical recoveries assumptions based on an analogous deposit in the gold equivalent calculation formula. Given the updated gold equivalent formula and the use of a gold equivalent cut-off grade, the derived values for the inferred mineral resources have been updated in the Amended Blue Lake Technical Report.

Table 1 – Blue Lake Inferred Mineral Resource Estimate
(Effective Date August 1, 2022, 0.4 g/t AuEq cut-off)

 

Blue Lake Mineral Resource Estimate

Category

Tonnes

Gold

Silver

Copper

Gold
Equivalent

Mt

g/t

Moz

g/t

Moz

%

Mt

g/t

Moz

Inferred

686

0.19

4.2

2.4

53.6

0.21

1.4

0.66

14.6

 

The November 2024 Kainantu Technical Report included two cases: i) a Stage 3 Expansion Definitive Feasibility Study (the “DFS Case”) based on Mineral Reserves, and; ii) a separate Stage 4 Expansion Preliminary Economic Assessment (the “PEA Case”) that incorporated mineral resources (measured and indicated, and inferred) from the Kora and Judd deposits. The Amended Updated DFS Technical Report supersedes and replaces the November 2024 Kainantu Technical Report and reflects the removal of the PEA Case. The Amended Updated DFS Technical Report does not modify the DFS Case or any of the mineral resource estimates, mineral reserve estimates, financial assumptions, or economic analysis contained in the DFS Case. The Company notes that on December 6, 2022, the Board of Directors of K92 approved the Stage 3 Expansion and Stage 4 Expansion. The Stage 4 Expansion involves operating the Stage 2A Expansion Process Plant (0.6 mtpa as outlined in the DFS Case) and the new standalone Stage 3 Expansion process plant (1.2 mtpa as outlined in the DFS Case), concurrently. The Stage 3 Expansion process plant is currently under construction and has been designed to be cost effectively expanded beyond 1.2 mtpa through increasing flotation and filter press capacity.