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K92 Mining Announces Strong Q3 Production Results – 44,323 OZ AuEq Produced Plus 4,893 OZ AuEq IN Commissioning Stockpile and Significant Stage 3 Expansion Progress Achieved

Production Results Mine Development & Operations

Suite 488 - 1090 West Georgia Street

Vancouver, British Columbia

Canada V6E 3V7

Telephone: +1 (604) 416-4445

Facsimile: +1 (604) 608-9110

www.k92mining.com

NEWS RELEASE

K92 MINING ANNOUNCES STRONG Q3 PRODUCTION RESULTS – 44,323 OZ AUEQ

PRODUCED PLUS 4,893 OZ AUEQ IN COMMISSIONING STOCKPILE AND

SIGNIFICANT STAGE 3 EXPANSION PROGRESS ACHIEVED

Vancouver, British Columbia, October 8, 2025 - K92 Mining Inc . (“K92” or the “ Company”)

(TSX: KNT; OTCQX: KNTNF) is pleased to announce production results for the third quarter (“Q3”)

of 2025 from its Kainantu Gold Mine in Papua New Guinea.

Q3 2025 Production Results

• Strong quarterly production of 44,323 ounces gold equivalent (“AuEq”) (1) or 42,244 oz

gold, 1,323,538 lbs copper and 34,831 oz silver (Figure 1). Quarterly sales of 45,006 oz

gold, 1,480,151 lbs copper and 43,271 oz silver. With more than 80% of the lower end of

annual guidance achieved in the first three quarters, plus ending Q3 with a 4,893 oz AuEq

commissioning stockpile in line with the Stage 3 Expansion requirements (28,702 tonnes

at 5.3 g/t AuEq or 5.0 g/t gold, 0.24% copper, and 11.9 g/t silver), the Company remains

on track to meet its 2025 production guidance of 160,000–185,000 oz AuEq.

• Quarterly ore processed of 137,172 tonnes, a 31% increase from Q3 2024, with a head

grade of 11.2 grams per tonne (“g/t”) AuEq, or 10.7 g/t gold, 0.47% copper and 1 0.3 g/t

silver. Head grade during the quarter was above budget, benefitting from a positive gold

grade reconciliation versus the latest independent mineral resource estimate (September

12, 2023 effective date for Kora and Judd).

• Strong metallurgical recoveries in Q3 of 95.0% for gold and 94.6% for copper (Figure 2).

The process plant has now delivered six consecutive quarters exceeding the updated

definitive feasibility study (“Updated DFS”) recovery parameters for both gold ( 92.6%)

and copper (94.2%) (January 1, 2024 effective date).

• Record total material mined (ore plus waste) of 353,770 tonnes, with multiple tonnes to

surface daily records (ore plus waste) in late -September, including 5, 769 tonnes on

September 27 and 6,404 tonnes on September 29, demonstrating the increased material

movement benefits realized from the commissioning of the first material pass during the

quarter combined with the commencement of surface trucks operating in the twin incline.

Total mine development was 2,4 77 metres. The operation continues to balance lateral

development priorities between the completion of key underground projects, including

prioritizing low equivalent lateral advance jumbo activities such as the Puma Ventilation

Drive and the underground pastefill chamber.

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• Total o re mined of 152,485 tonnes, the second highest on record, with mining activity

across 13 levels, including the 1090, 1110, 1225, 1325, 1345, and 1365 levels at Kora, and

the 1010, 1030, 1050, 1170, 1185, 1325, 1345 and 13 85 levels at Judd – long hole open

stoping performed to design.

Stage 3 Expansion – Significant Progress Made. Construction of Stage 3 Plant Complete,

Commissioning Well-Advanced, First Gold Pour and First Concentrate Production on Track for

First Half of Q4 2025

• Construction of the new 1.2 million tonnes -per-annum Stage 3 Expansion Process Plant

is complete and was delivered under the capital expenditure budget, marking a major

milestone for the construction team. C rushing, grinding and flotation circuits are now

being commissioned with ore , with first gold pour , first gold-copper-silver concentrate

production and completion of plant commissioning on schedule for the first half of Q4

2025. As at September 30, 2025, 90% of Stage 3 Expansion growth capital has either been

spent or committed and remains on budget.

• During Q3, the major construction contracts were awarded for the pastefill plant. The

surface tailings filtration plant detailed engineering and design is complete, early

earthworks are complete and civil works have commenced. The surface storage facility

near the underground mine is rapidly advancing , with site clearing complete, early

earthworks underway, and detailed engineering nearly complete. The underground

pastefill plant bulk excavations made significant progress during the quarter, and detailed

engineering and design is nearly complete. Long -lead items for the various paste

infrastructure projects are now arriving on site. Commissioning remains on schedule to

commence mid-Q1 2026, with practical completion of commissioning of the pastefill

circuit remaining on schedule for mid-2026.

• During the quarter, several key Stage 3 Expansion underground construction and

operational excellence projects were completed or are approaching completion, including:

o Material Pass – Construction and commissioning completed in Q3, connecting the

main mine via gravity to the highly productive twin incline haulage route. In late-

Q3, multiple surface haulage daily records were delivered as noted above, driven

by the commissioning of the material pass, combined with the commencement of

surface haul trucks operating in the twin incline that transport material directly

from underground to surface stockpiles, eliminating the need for rehandle . The

next material pass is planned to commence development in Q4 and become

operational in Q1 2026, enabling a dedicated pass for both ore and waste ,

respectively.

o Phase 2 Ventilation Upgrade – Development of two raisebored ventilation raises

was completed in Q3, with the full ventilation upgrade planned for the second half

of October. This upgrade is expected to deliver a +30% increase in primary mine

airflow (150 m3/s to 200 m 3/s), enabling two major productivity improvements: i)

reduced re-entry times after blasting, and; ii) reduced blast initiation time with the

introduction of a centralized blasting system which enables remote initiation from

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surface – these two combined improvements will enable firing twice a day

(currently once a day).

o Phase 3 Ventilation Upgrade - Puma Ventilation Drive on schedule for Q4

completion and is now within 70m of surface breakthrough. Surface works are

complete ahead of the breakthrough, and u pon breakthrough, primary mine

airflow is expected to increase to 250 m 3/s, further reducing blast re-entry times

and meeting the airflow requirements for the Stage 3 Expansion. Once complete,

the vent circuit will be modified, so that the twin incline will operate under highly

efficient one-way traffic flow that utilizes both inclines.

o Stage 4 Expansion Ventilation Upgrade – Installation of two x 2 MW variable

speed drive fans is currently underway and scheduled for completion in Q4 .

Electrification is planned to be opportunistically completed in H1 2026 as it is not

required for the Stage 3 Expansion.

o Decline-Incline Convergence Project connecting the Main Mine with the Twin

Incline via internal ramp access – Significant progress was delivered in Q3 with

258 metres of advance achieved, leaving less than 370 metres of development

required for completion. Upon completion scheduled for Q1 2026, this project is

expected to deliver major operational efficienc y improvements as the Main Mine

will now also become accessible by the highly productive twin incline , and all

mining fronts will be connected via an internal ramp, allowing for one-way traffic

flow.

o Surface Tele -Remote Loader System – Completed in Q3, leveraging the

underground fiber optic backbone (Wi-Fi), to enable the operation of underground

loaders from surface. This system maximizes the available operating time over a

24-hour period by enabling tele-remote loading operations during shift change and

re-entry. In late-Q3, the underground fleet was also fully integrated with onboard

Wi-Fi capability to enable real-time data -collection for short interval control

planning, productivity monitoring , and fleet diagnostics to further drive

operational improvements.

o Primary Power Station – Phase 1, 8.8 MW of generation capacity was installed and

commissioned in Q3. Phase 2 has significantly progressed with intended expansion

to 15.2 MW. Long-lead orders have been placed and completion is planned for H1

2026. This will provide standby power during any unexpected outages from the

local grid (hydroelectricity).

• Two new mining fronts have also been significantly developed, including five new

sublevels in the Twin Incline mining front , and two new sublevels in the Lower Kora

mining front , which will facilitate the ramp-up in long -hole stoping over the coming

quarters for the Stage 3 Expansion.

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Note (1): Gold equivalent production for Q3 2025 is calculated based on: gold $ 3,507 per

ounce; silver $ 38.71 per ounce; and copper $ 4.49 per pound. Gold equivalent grade for Q 3

incorporates realized recoveries of 95.0% for Au, 94.6% for Cu and 81.3% for Ag.

John Lewins, K92 Chief Executive Officer and Director, stated, “The third quarter marked another

strong period of progress for K92 both in terms of production and continued execution of the Stage 3

Expansion. With the commissioning of the new 1.2 million tonnes -per-annum Stage 3 Expansion

Process Plant nearing completion, this marks an exciting period in the Company’s history as K92

transitions into a Tier-1, mid-tier producer. Notably, ore has already been introduced into the crushing,

grinding, and flotation circuits of the new process plant , keeping us firmly on track for practical

completion of commissioning and the first gold pour and concentrate production in the first half of Q4

2025. Importantly, the team has built the process plant under -budget, representing a significant

achievement.

We are also very pleased with the significant advancement we have made across a multitude of projects,

de-risking the delivery of the Stage 3 Expansion and positioning the underground mine for Stage 4 and

beyond. The recent string of daily records in total tonnes to surface moved (ore + waste) demonstrates

that productivity and efficiency projects are now having a tangible impact on mine performance .

Additionally, critical contracts were awarded, and construction works advanced, for all major pastefill

infrastructure, with commissioning targeted to commence mid-Q1 2026. With 90% of Stage 3 growth

capital already spent or committed, the expansion remains fully funded and on budget.

Having already delivered 80% of the lower end of our annual guidance within the first three quarters

plus a commissioning stockpile of 4,893 oz AuEq at the end of Q3 , we are well-positioned to achieve

our 2025 production guidance.”

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See Figure 1: Quarterly Production, Cash Cost and AISC Chart

See Figure 2: Gold and Copper Recoveries Chart

Table 1 – 2025 & 2024 Annual Production Data

Q3 2024 Q4 2024 2024 Q1 2025 Q2 2025 Q3 2025

Tonnes Processed T 104,992 96,614 427,821 103,449 130,337 137,172

Feed Grade Au g/t 13.0 17.3 10.7 14.3 8.3 10.7

Feed Grade Cu % 0.58% 0.47% 0.55% 0.50% 0.55% 0.47%

Recovery (%) Au % 95.3% 96.4% 94.6% 95.8% 93.3% 95.0%

Recovery (%) Cu % 95.1% 94.7% 94.1% 95.1% 94.9% 94.6%

Metal in Conc & Doré Prod Au oz 41,702 51,371 139,123 45,735 32,375 42,244

Metal in Conc Prod Cu T 580 435 2,235 518 697 600

Metal in Conc Prod Ag oz 37,613 41,992 142,063 34,085 42,966 34,831

Gold Equivalent Production oz 44,304 53,401 149,515 47,817 34,816 44,323

Notes – Gold equivalent for Q3 2025 is calculated based on:

gold $3,507 per ounce; silver $38.71 per ounce; and copper $4.49 per pound.

Gold equivalent for Q2 2025 is calculated based on:

gold $3,299 per ounce; silver $33.41 per ounce; and copper $4.31 per pound.

Gold equivalent for Q1 2025 is calculated based on:

gold $2,855 per ounce; silver $31.73 per ounce; and copper $4.26 per pound

Gold equivalent for Q4 2024 is calculated based on:

gold $2,658 per ounce; silver $31.52 per ounce; and copper $4.25 per pound.

Gold equivalent for Q3 2024 is calculated based on:

gold $2,474 per ounce; silver $29.43 per ounce; and copper $4.17 per pound.

Qualified Person

K92 Mine Chief Geologist, 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.

Technical Report

The Updated DFS and mineral resource estimate for the Kainantu Gold Mine Project in Papua New

Guinea is presented in a technical report, titled, “Independent Technical Report, Kainantu Gold Mine,

Updated Definitive Feasibility Study, Kainantu Project, Papua New Guinea” dated March 21, 2025,

with an effective date of January 1, 2024.

About K92

K92 Mining Inc. is engaged in the production of gold, copper and silver at the Kainantu Gold Mine in

the Eastern Highlands province of Papua New Guinea, as well as exploration and development of

mineral deposits in the immediate vicinity of the mine. The Company declared commercial production

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from Kainantu in February 2018, is in a strong financial position, and is working to become a Tier 1

mid-tier producer through ongoing plant expansions. A maiden resource estimate on the Blue Lake

copper-gold porphyry project was completed in August 2022. K92 is operated by a team of mining

company professionals with extensive international mine-building and operational experience.

On Behalf of the Company,

John Lewins, Chief Executive Officer and Director

For further information, please contact David Medilek, P.Eng., CFA, President and Chief Operating

Officer at +1-604-416-4445

CAUTIONARY STATEMENT REGARDING FORWARD -LOOKING INFORMATION: This news

release includes certain “forward-looking statements” under applicable Canadian securities legislation. Such

forward-looking statements include, without limitation: (i) the results of the Kainantu Mine Definitive Feasibility

Study, including the Stage 3 Expansion, a new standalone 1.2 million tonnes-per-annum process plant and

supporting infrastructure; (ii) statements regarding the expansion of the mine and development of any of the

deposits; (iii) the Kainantu Stage 4 Expansion, operating two standalone process plants, larger surface

infrastructure and mining throughputs; and (iv) the potential extended life of the Kainantu Mine.

All statements in this news release that address events or developments that we expect to occur in the future are

forward-looking statements. Forward -looking statements are statements that are not historical facts and are

generally, although not always, id entified by words such as “expect”, “plan”, “anticipate”, “project”,

“target”, “potential”, “schedule”, “forecast”, “budget”, “estimate”, “intend” or “believe” and similar

expressions or their negative connotations, or that events or conditions “will”, “wo uld”, “may”, “could”,

“should” or “might” occur. All such forward -looking statements are based on the opinions and estimates of

management as of the date such statements are made. Forward -looking statements are necessarily based on

estimates and assumption s that are inherently subject to known and unknown risks, uncertainties and other

factors, many of which are beyond our ability to control, that may cause our actual results, level of activity,

performance or achievements to be materially different from those expressed or implied by such forward-looking

information. Such factors include, without limitation, Public Health Crises, including the epidemic or pandemic

viruses; changes in the price of gold, silver, copper and other metals in the world markets; fluctuations in the

price and availability of infrastructure and energy and other commodities; fluctuations in foreign currency

exchange rates; volatility in price of our common shares; inherent risks associated with the mining industry,

including problems related to weather and climate in remote areas in which certain of the Company’s operations

are located; failure to achieve production, cost and other estimates; risks and uncertainties associated with

exploration and development; uncertainties relating to estimates of mineral resources including uncertainty that

mineral resources may never be converted into mineral reserves; the Company’s ability to carry on current and

future operations, including development and exploration activities at the Arakompa, Kor a, Judd and other

projects; the timing, extent, duration and economic viability of such operations, including any mineral resources

or reserves identified thereby; the accuracy and reliability of estimates, projections, forecasts, studies and

assessments; the Company’s ability to meet or achieve estimates, projections and forecasts; the availability and

cost of inputs; the availability and costs of achieving the Stage 3 Expansion or the Stage 4 Expansion; the ability

of the Company to achieve the inputs the price and market for outputs, including gold, silver and copper; failures

of information systems or information security threats; political, economic and other risks associated with the

Company’s foreign operations; geopolitical events and other uncertain ties, such as the conflicts in Ukraine,

Israel and Palestine; compliance with various laws and regulatory requirements to which the Company is

subject to, including taxation; the ability to obtain timely financing on reasonable terms when required; the

current and future social, economic and political conditions, including relationship with the communities in

Papua New Guinea and other jurisdictions it operates; other assumptions and factors generally associated with

the mining industry; and the risks, unce rtainties and other factors referred to in the Company’s Annual

Information Form under the heading “Risk Factors”.

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Estimates of mineral resources are also forward-looking statements because they constitute projections, based

on certain estimates and assumptions, regarding the amount of minerals that may be encountered in the future

and/or the anticipated economics of p roduction. The estimation of mineral resources and mineral reserves is

inherently uncertain and involves subjective judgments about many relevant factors. Mineral resources that are

not mineral reserves do not have demonstrated economic viability. The accu racy of any such estimates is a

function of the quantity and quality of available data, and of the assumptions made and judgments used in

engineering and geological interpretation, Forward -looking statements are not a guarantee of future

performance, and a ctual results and future events could materially differ from those anticipated in such

statements. Although we have attempted to identify important factors that could cause actual results to differ

materially from those contained in the forward-looking statements, there may be other factors that cause actual

results to differ materially from those that are anticipated, estimated, or intended. 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.

Figure 1: Quarterly Production, Co-Product Cash Cost and Co-Product AISC Chart