November 2025 - Luca Mining Corp.

Luca Mining Corp. Reports Third Quarter 2025 Results

Strong Year-Over-Year Growth and Advancement of Development Initiatives in Q3 2025

Luca Mining Corp. (“Luca” or the “Company”) (TSXV: LUCA) (OTCQX: LUCMF) (Frankfurt: Z68) is pleased to report operational and financial results for the three and nine months ended September 30, 2025. Q3 has delivered substantial production and revenue growth from the prior-year period. Luca has generated positive net free cash flow before working capital of $5.3 million in the first 9 months of 2025, even as the Company has invested heavily in development and exploration to position both mines for stronger production and profitability going forward. Sustaining capital in the quarter was elevated and metals recoveries were temporarily lower due to mine sequencing and commissioning activities; however, these investments have led to improvements in mine efficiency and expected increases in recoveries. As the Company moves into 2026, increased grades, higher recoveries and continued cash generation from operations are expected.

Third Quarter 2025 Highlights

Safety: continued emphasis on safe, disciplined operations with strengthened housekeeping and visible leadership engagement across both sites.
Throughput increased: consolidated tonnes milled of 250,807 (+66% vs. prior year), supported by increased plant availability at both mines which has resulted in higher metal output:
- Gold increased 51%, Silver increased 97%, Zinc increased 78%, Lead increased 81%, Copper increased 43% over Q3 2024.
Profitability indicators: Adjusted EBITDA of $4.3 million for the quarter and positive year-to-date adjusted net earnings of $12.8 million, a reflection of greater operational performance.
Revenue momentum: Revenues of $35.0 million (+94% vs. prior year), supported by higher sales volumes and increased realized precious-metal prices (gold +28%, silver +18%).
Campo Morado performance: production in Q3 improved year-over-year (+75% ZnEq pounds^(a)) on higher grades, notably zinc (+30%) and silver (+27%) and increased volumes (+43% tonnes milled per day). Cash costs decreased to $1.09 per payable ZnEq pound^(a) (-14% vs. prior year) with AISC of $1.43/lb slightly increased (+8%) from the same quarter in the prior period, reflecting increased sustaining capital development and the commencement of a significant exploration program at the mine (all of the Company’s exploration expenditures are included in AISC).
Tahuehueto ramp-up: 77,548 tonnes milled, setting a record of 969 tonnes milled per day in the quarter (+187% vs. prior year), with AuEq production up 74% year-over-year. As a result of increased volumes, direct cost per tonne reduced to $149 (-22%). Lower grades in the quarter, as well as increased capital development and exploration, resulted in an increase in AISC (+35%) year-over-year. Increased grades and the benefit of this capital development are expected to decrease AISC at Tahuehueto in the subsequent periods.
Investment for reliability: sustaining capital investment of $8.7 million in the quarter ($19.0 million YTD) to accelerate underground development and exploration drilling, positioning both mines for improved grades and operating flexibility.
The Company made significant progress in exploration, with multiple high-grade intercepts at both operations.
Repaid $2.5 million in debt.

“Q3 was a transformational quarter of operational investment and performance for Luca Mining,” stated Dan Barnholden, CEO of Luca Mining. “Both of our operating mines delivered substantial year-over-year production growth, are operating at throughput levels above budget, and our increased development investment is positioning us for higher grades, stronger recoveries, and improved cash flow as we enter 2026. While sustaining capital, including exploration, was elevated this quarter, this spending was strategic and front-loaded to enhance long-term asset performance. Even with the increased investment we have made in our mines and in exploration, so far in 2025 our operations have generated $5.3 million in net free cash flow net of corporate expenses. Given the strong exploration results received to date, we are excited to have committed to a major three-year, US$25 million exploration program, introduced in our recent news release dated November 12, 2025, which we believe has the potential to unlock considerable new gold resources at both Campo Morado and Tahuehueto.”

See Reconciliation of earnings before interest, taxes, depreciation, and amortization in the MD&A
See “Non-IFRS Financial Measures” in the MD&A .
Based on provisional sales before final price adjustments, treatment, and refining charges
Mine operating cash flow before taxes is calculated by adding back royalties, changes in inventory and depreciation and depletion to mine operating earnings. See Reconciliation to IFRS in the MD&A
Net free cash flow before working is operating cash flow before working capital changes, less capital expenditures. See in the MD&A
Information presented herein for the three and nine months ended September 30, 2024, has been restated to reflect the impact of the reclassification of the Amended Streaming Agreement from deferred revenue to a derivative financial liability. See Note 2 of the condensed consolidated interim financial statements

Production

Campo Morado (Guerrero, Mexico)

Campo Morado delivered another quarter of solid production and improved cost performance. The mine processed 173,260 tonnes of mineralized material, representing a 42% increase over the same quarter in 2024. This resulted in total production of approximately 30.2 million zinc-equivalent pounds, a 75% year-over-year increase, reflecting higher throughput (+43% tonnes milled per day) and improved plant reliability, as well as on higher grades: zinc (+30%), copper (+3%), gold (+11%), and silver (+27%).

Cash operating costs averaged $1.09 per payable ZnEq pound (-14%), while all-in sustaining costs were $1.43 per pound (+8%), reflecting both increased production volumes and grades and increased sustaining capital development and the commencement of a significant exploration program at the mine. All of the Company’s exploration expenditures are included in AISC.

Ongoing initiatives to improve blending control and metallurgical performance have continued to stabilize recoveries and enhance concentrate quality. Zinc-circuit recoveries have been stabilized through targeted ore-blend controls and optimized reagent operating adjustments and the commissioning of a fourth Zn-cleaning flotation stage. In parallel, development activities supported the opening of new production areas and further optimization of mine sequencing.

High grade precious metals drill results were returned from the Reforma deposit at Campo Morado in the quarter, including 37.2 metres grading 5.87 g/t gold, 367.50 g/t silver, 0.53% copper, 5.54% zinc and 2.57% lead, released on August 27, 2025. Exploration drilling also returned multiple high-grade intercepts adjacent to existing workings, reinforcing confidence in the resource potential and the opportunity for near-mine expansion.

Tahuehueto (Durango, Mexico)

At Tahuehueto, production continued to ramp up steadily through the quarter. The mine processed 77,548 tonnes of ore, setting a record of 969 tonnes per day milled in the quarter (+187% vs. prior year), as plant availability improved and mining activities expanded into new zones. Total gold-equivalent production reached 5,579 ounces, an increase of 74% year-over-year, reflecting the growing contribution of both gold and silver output as the mine progresses toward nameplate capacity.

Direct mining cost per tonne improved 22% year-over-year to $149, supported by better equipment utilization and increased ore volumes. Lower grades in the quarter, as well as increased capital development and exploration, resulted in an increase in AISC (+35%) year-over-year. While average gold grades were lower year-over-year due to mine sequencing, new stopes developed during the quarter are expected to provide higher-grade feed in Q4 and into 2026.

The Company also advanced installation of a new copper-lead separation circuit, a key process improvement designed to enhance metal recoveries and overall concentrate quality. This system will allow Tahuehueto to produce separate copper and lead concentrates for the first time, rather than a combined bulk concentrate. The separation is expected to improve payabilities, reduce impurities, and create greater marketing flexibility with multiple potential offtake partners. Mechanical installation was substantially completed during the quarter, and industrial trials are scheduled to begin in late-Q4 2025, with full integration into regular production anticipated early in 2026.

Exploration drilling at Tahuehueto continued to return strong results in the second quarter, including 14.0 metres grading 6.68 g/t gold from the Santiago deposit, released on September 8, 2025. Located one kilometre from current mine workings, Santiago has never been mined and is open along strike.

Outlook

Based on mine sequencing and year-to-date performance, Luca has revised its 2025 production and capital expenditure guidance to reflect year-to-date production and development schedules at both operations. Consolidated gold and zinc production and payable metal are tracking below the pace implied by the original full-year guidance, primarily due to sequencing through lower-grade zones, metallurgical recoveries, and the timing of new stope access. This is somewhat offset by consolidated copper, silver and lead production and payable metal tracking within or above original guidance ranges.

Going forward, both Tahuehueto and Campo Morado are expected to enter higher-grade areas which, combined with the strong milling rates observed at both mines, is expected to drive increased production, improved recoveries, and lower unit costs through year-end.

2025 Production Guidance

Consolidated

Campo Morado

Tahuehueto

2025 Budgeted Capital Expenditures and Exploration

Luca has updated its 2025 capital program to $29.4 million (from $27.4 million), a reflection of accelerated underground development, plant reliability upgrades, and targeted optimization projects at both operations, as well as an increased exploration program at Campo Morado. Year-to-date spending totaled $20.3 million (74% of original guidance).

Free Cash Flow

The Company initially anticipated generating between $30 million and $40 million⁽¹⁾in Net Free Cash Flow before working capital adjustments for the year. However, following additional capital investments to accelerate mine development and infrastructure upgrades, together with lower-than-expected gold and zinc output during the second and third quarters of 2025 as mining progressed through lower-grade areas, full-year Net Free Cash Flow is now expected to be between $5 million and $10 million.

Qualified Person
The technical information contained in this news release has been reviewed and approved by Mr. Paul D. Gray, P.Geo., Vice-President Exploration at Luca Mining. Mr. Gray is a Qualified Person for the Company as defined by National Instrument 43-101.

About Luca Mining Corp.
Luca Mining Corp. (TSX-V: LUCA, OTCQX: LUCMF, Frankfurt: Z68) is a Canadian mining company with two wholly owned mines located in the prolific Sierra Madre mineralized belt in Mexico. These mines produce gold, copper, zinc, silver, and lead and generate strong cash flow. Both mines have considerable development and resource upside as well as district scale exploration potential.

The Company’s Campo Morado Mine hosts VMS-style, polymetallic mineralization within a large land package comprising 121 square kilometres. It is an underground operation, producing zinc, copper, gold, silver and lead. The mine is located in Guerrero State.

The Tahuehueto Mine is a large property of over 100 square kilometres in Durango State. The project hosts epithermal gold and silver vein-style mineralization. Tahuehueto is a newly constructed underground mining operation producing primarily gold and silver. The Company has successfully commissioned its mill and is now in commercial production.

On Behalf of the Board of Directors
(signed) “Dan Barnholden”

Dan Barnholden, Chief Executive Officer

For more information, please visit: www.lucamining.com

Cautionary Note Regarding Forward-Looking Statements

Statements contained in this news release that are not historical facts are “forward-looking information” or “forward-looking statements” (collectively, “Forward-Looking Information”) within the meaning of applicable Canadian securities laws. Forward Looking Information includes, but is not limited to, estimated production guidelines for 2025 and other possible events, conditions or performance that are based on assumptions about the proposed exploration program and its anticipated results; the timing and costs of future activities on the Company’s properties, such as production rates and increases and sustaining capital expenditures; success of exploration, development, and metres to be drilled in exploration on the Tahuehueto Mine site and the Campo Morado Mine site. In certain cases, Forward-Looking Information can be identified using words and phrases such as “plans”,”expects”,”scheduled”,”estimates”, “forecasts”, “intends”,” anticipates” or variations of such words and phrases. In preparing the Forward-Looking Information in this news release, the Company has applied several material assumptions, including, but not limited to, that the Company will be able to raise additional capital as necessary; the current exploration, development, environmental and other objectives concerning the Tahuehueto Mine can be achieved; that consistent and sustainable mill feed at Campo Morado Mine will be achieved; the continuity of the price of gold and other metals and economic and political conditions. Forward-Looking Information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance, or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. There can be no assurance that Forward-Looking Information 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 Information. Except as required by law, the Company does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.

Neither TSX Venture Exchange nor its Regulation Services Provider (as that term is defined in the policies of the TSX Venture Exchange) accepts responsibility for the adequacy or accuracy of this release.

Luca Launches Three-Year, US$25 Million Exploration Program to Unlock Exceptional Gold Potential at Campo Morado and Tahuehueto

Luca Mining Corp. (“Luca” or the “Company”) (TSXV: LUCA) (OTCQX: LUCMF) (Frankfurt: Z68) is pleased to announce a comprehensive three-year, US$25 million exploration program designed to unlock the district-scale, high-grade gold potential across its wholly owned Campo Morado and Tahuehueto mining operations in Mexico.

Key Highlights

US$25 million, three-year exploration plan targeting district-scale gold discovery potential across Luca’s two producing mines
80,000 metres of diamond drilling (surface & underground) to expand and define high-grade gold resources
AI-based assessment of >30 years of advanced historical exploration data available, leveraging >650,000 metres of drilling and decades of geologic and geophysical data valued at over US$100 million
2026 program: US$6.5 million budget for 20,000 metres of drilling; a further US$18.5 million budgeted for 2027–2028 with 60,000 metres planned
Campo Morado: 38 priority targets identified, including Reforma Deeps, a new high-grade gold zone below historical drilling
Tahuehueto: Near-mine and brownfields drilling to extend the Crestón, Perdido, and Santiago structures along strike and depth
Fully permitted with strong community agreements and existing site access and infrastructure

Program Overview

Over 80,000 metres of surface and underground diamond drilling are planned to underpin future production growth. This campaign follows a detailed review of Luca’s extensive geological datasets and will systematically test both near-mine and district-scale targets across more than 220 square kilometres of highly prospective concessions.

As part of the program, VRIFY will apply its proprietary AI-assisted target-generation platform to Luca’s vast datasets including over 650,000 metres of historical drilling, decades of soil sampling, mapping, and geophysical surveys.

Luca has partnered with VRIFY to leverage DORA, an AI prospectivity mapping software, to process and augment the extensive datasets from both projects. This collaboration will empower Luca to make data-driven decisions in exploration planning and uncover patterns that point to areas with high mineralization potential. With an AI model that is pre-trained on several known VMS systems, DORA is a valuable tool for the Luca team to utilize in advancing this multi-year exploration campaign.

Program Focus and Targets

Drilling will concentrate on high-grade gold mineralization at both mines, building on recent exploration successes (see news releases dated August 27 and September 8, 2025), which included:

Campo Morado – Reforma: 37.2 metres of 5.9 g/t Au, 368 g/t Ag, 0.53% Cu, 5.54% Zn and 2.57% Pb , the first drillholes at this target in over 14 years.
Tahuehueto – Santiago: 14.0 metres of 6.7g/t Au and 6.0 metres of 9.0 g/t Au.

Campo Morado

Focus on undrilled gravity anomalies, proven effective in discovering current resources
38 priority targets ranked using integrated geological, geochemical, and geophysical criteria
Reforma and El Rey deposits, both open at depth, will be drilled to expand known high-grade zones
Reforma Deeps is a new target located immediately below all historical drilling of the Reforma deposit that is associated with a significant untested gravity anomaly

Tahuehueto

Surface and underground drilling to test extensions of the Crestón and Perdido structures
The Santiago deposit strike extension, east onto newly acquired concessions, and west toward the Perdido vein, will test a highly prospective gap interpreted as a continuation of the same mineralized system

All exploration activities are covered by existing permits and community agreements, allowing rapid mobilization and minimal permitting risk.

Paul D. Gray, Luca VP Exploration, commented, “This US$25 million, three-year exploration program will leverage Luca’s extensive proprietary historical datasets available to unlock the district-scale gold potential at both projects, which have seen little meaningful exploration in over a decade. Our projects are ripe for discovery and the definition of new mineral resources. We are confident that the substantive, systematic approach that Luca is undertaking will lead to significant exploration successes. The AI-driven analysis of the datasets at both projects is a key part of this work. Luca is uniquely positioned in this regard with large and valuable historical geological datasets and highly prospective, underexplored 100% owned land packages hosting producing operations which together represent an ideal framework for AI analysis and target generation. Luca looks forward to this initiative with VRIFY AI, an industry-leading mineral exploration AI firm.”

Dan Barnholden, Luca’s CEO, added, “We are committed to value creation through exploration at our mines. With operating mills at both Campo Morado and Tahuehueto, we believe the potential is high for the discovery of new mineralization that can feed these mills and add to our near-term production profiles at both operations. Our belief in the potential of our assets is matched by our willingness to innovate as we apply industry-leading AI technology to a world-class dataset.”

About Luca Mining Corp.
Luca Mining (TSX-V: LUCA, OTCQX: LUCMF, Frankfurt: Z68) is a diversified Canadian mining company with two 100%-owned producing mines within the prolific Sierra Madre mineralized belt in Mexico which hosts numerous producing and historical mines along its trend. The Company produces gold, copper, zinc, silver and lead from these mines that each have considerable development and resource upside.

The Campo Morado polymetallic VMS mine is an underground operation located in Guerrero State. It produces copper-zinc-lead concentrates with precious metals credits. It is currently undergoing an optimization program which is already generating significant improvements in recoveries, grades, efficiencies, and cash flows.

Qualified Person
The technical information contained in this news release has been reviewed and approved by Mr. Paul D. Gray, P.Geo., Vice President Exploration at Luca Mining. Mr. Gray is a Qualified Person for the Company as defined by National Instrument 43-101.

On Behalf of the Board of Directors

(signed) “Dan Barnholden”
Dan Barnholden, Chief Executive Officer

For more information, please visit: www.lucamining.com

Cautionary Note Regarding Forward-Looking Statements

It should be noted that Luca declared commercial production at Campo Morado prior to completing a feasibility study of mineral reserves demonstrating economic and technical viability. Accordingly, readers should be cautioned that Luca’s production decision has been made without a comprehensive feasibility study of established reserves such that there is greater risk and uncertainty as to future economic results from the Campo Morado mine and a higher technical risk of failure than would be the case if a feasibility study were completed and relied upon to make a production decision. Luca has completed a preliminary economic assessment (“PEA”) mining study on the Campo Morado mine that provides a conceptual life of mine plan and a preliminary economic analysis based on the previously identified mineral resources (see news releases dated November 8, 2017, and April 4, 2018).

Statements contained in this news release that are not historical facts are “forward-looking information” or “forward-looking statements” (collectively, “Forward-Looking Information”) within the meaning of applicable Canadian securities laws. Forward Looking Information includes, but is not limited to, disclosure regarding the Financings, the anticipated timing of closing thereof and the expected use of proceeds therefrom; and other possible events, conditions or financial performance that are based on assumptions about future economic conditions and courses of action; the timing and costs of future activities on the Company’s properties, such as production rates and increases; success of exploration, development and bulk sample processing activities, and timing for processing at its own mineral processing facility on the Tahuehueto project site. In certain cases, Forward-Looking Information can be identified using words and phrases such as “plans,” “expects,” “scheduled,” “estimates,” “forecasts,” “intends,” “anticipates” or variations of such words and phrases. In preparing the Forward-Looking Information in this news release, the Company has applied several material assumptions, including, but not limited to, that all requisite approvals in respect of the Financings will be received, and all conditions precedent to completion of the Financings will be satisfied, in a timely manner; the Company will be able to raise additional capital as necessary; the current exploration, development, environmental and other objectives concerning the Campo Morado Mine and the Tahuehueto Project can be achieved; the program to improve mining operations at Campo Morado will proceed as planned; the continuity of the price of gold and other metals, economic and political conditions, and operations. Forward-Looking Information involves known and unknown risks, uncertainties and other factors which may cause the actual results, performance, or achievements of the Company to be materially different from any future results, performance or achievements expressed or implied by the Forward-Looking Information. There can be no assurance that Forward-Looking Information 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 Information. Except as required by law, the Company does not assume any obligation to release publicly any revisions to Forward-Looking Information contained in this news release to reflect events or circumstances after the date hereof or to reflect the occurrence of unanticipated events.